Alg 1 - 250 toothpick pyramid task


Write a function f(l) that determines the number of triangles in any given level of the pyramid.

f(l) =

pls help asapppp

Answers

Answer 1

Answer: The answer is 7

Step-by-step explanation:


Related Questions

Find x of the problem

Answers

There is no real solution for X. This means that the given measurements do not form a valid right triangle.

What is the value of X?

Triangle KJL forms a right triangle, with length KL (hypothenuse side) = 10 and JL = X and KL = 24.

We can use the Pythagorean theorem to solve for the missing side, which states that in a right triangle, the square of the length of the hypotenuse is equal to the sum of the squares of the lengths of the other two sides.

Therefore, we have:

KL² = KJ² + JL²

Substituting the given values, we get:

10² = 24² + X²

Simplifying and solving for X, we get:

100 = 576 + X²

X² = 100 - 576

X² = -476

Since X² is negative, there is no real solution for X. This means that the given measurements do not form a valid right triangle.

Learn more about Pythagorean theorem here: https://brainly.com/question/231802

#SPJ1

Please help me with this I have no idea

Answers

Answer:

x = 8

Step-by-step explanation:

The two sides equal each other

5x - 13 = x + 19  Subtract x from both sides

5x - x - 13 = x - x + 19

4x - 13 = 19  Add 13 to both sides

4x - 13 + 13 = 19 + 13

4x = 32  Divide both sides by 4

x = 8

Helping in the name of Jesus.

There are two right triangles in the picture, triangle ABD and triangle CBD.

These triangles are congruent, meaning that their corresponding sides are congruent.

This means that line AB = line CB, or:

x + 19 = 5x - 13
-x
19 = 4x - 13
+13
32 = 4x
/4
8 = x
x = 8

Answer 1: x = 8

Answer 2 asks for line AB (x + 19), x equals 8, so 8 + 19 = 27

Answer 2: 27

Miyako hits a jump and follows the path of a parabola.
Her height can be modeled by the equation h = -16t² + 32t + 15,
where his her height in feet after t seconds. Graph the function.
Interpret the key features of the graph in terms of the quantities.

Answers

A parabolic function is represented by h = -16T² + 32T + 151.

Describe the parabolic function?

A function with the equation f(x) = ax²+ bx + c is said to be parabolic. It is a second-degree quadratic expression in x². A parabola-like form can be seen in the graph of a parabolic function. The range value for the parabolic function is the same for two different domain values. Parabolic motion refers to a variety of motions, such as the motion of a stone thrown under the influence of gravity.

. The function's greatest or minimum value is where the parabola's vertex is located. In this instance, the formula -b/2a,

where a = -16 and b = 321, can be used to get the vertex of the parabola. As a result, this parabola's vertex is located at t = 1 second and h = 31 feet.

The parabola's vertex is located at t = 1 second and h = 31 feet. These are the main characteristics of this graph.

The parabola's axis of symmetry is a vertical line that passes through its vertex.

Because the coefficient of t² is negative, the parabola begins to slope downward.

- The maximum height that Miyako reaches is 31 feet.

To know more about parabolic function visit:

brainly.com/question/29171945

#SPJ1

est.
nas
ge
5. In a survey, of the students at one
25
school said they wanted to become
doctors and 16% of the students
at
the same school said they wanted to
become teachers. The rest of the
students were undecided. Which of
the following represents the students
who were undecided?

Answers

Percentage of students who were undecided is  59% of the students were undecided about their future careers.

what is Percentage?

A percentage is a fraction or ratio expressed as a fraction of 100. It is a way of expressing a part of a whole as a proportion of the whole. It is denoted by the symbol '%'. For example, if there are 100 students in a class and 20 of them are girls, then the percentage of girls in the class is 20%.

In the given question,

To solve the problem, we need to first find out the percentage of students who were undecided. We know that 25% of the students wanted to become doctors and 16% wanted to become teachers. The percentage of students who were undecided can be found by subtracting the sum of the percentages of those who wanted to become doctors and teachers from 100%:

Percentage of students who were undecided = 100% - (25% + 16%) = 59%

Therefore, 59% of the students were undecided about their future careers.

To know more about Percentage , visit:

https://brainly.com/question/29306119

#SPJ1

Find the area of the Square

1 in
1 in

please explain I'll mark brainlisest ​

Answers

Its 1 square inches because 1x1x1x1=1sq inches

What should Andre estimate for the probability of picking out a green block from this bag

Answers

The answer using probability are shown:

(A) 43/60 projection is used.

(B) He shouldn't alter the estimate in light of this knowledge.

What is probability?

Simply put, the probability is the likelihood that something will occur.

When we don't know how an occurrence will turn out, we can discuss the likelihood or likelihood of various outcomes.

Statistics is the study of occurrences that follow a probability distribution.

Mathematics' study of random events is known as probability, and there are four major kinds of probability: axiomatic, classical, empirical, and subjective.

So, he would calculate the amount by dividing the overall number of bricks by the proportion of green bricks. The likelihood of choosing a green block out of all 60 bricks would be that.

Then, the probability would be:

= 43/60

Andre shouldn't alter his assessment, in other words.

The explanation is that we do not know whether the bricks he saw were green in color; we are only told that she looked in the bag and found 6 bricks.

The only time Andre needs to adjust his guess is if it turns out that the six bricks Mai saw in the bag were, in fact, green.

The estimate should not be altered until this proof is received.

Therefore, the answer using probability are shown:

(A) 43/60 projection is used.

(B) He shouldn't alter the estimate in light of this knowledge.

Know more about probability here:

https://brainly.com/question/24756209

#SPJ1

Complete question:
Andre picks a block out of a bag 60 times and notes that 43 of them were green. What should Andre estimate for the probability of picking out a green block from this bag? Mai looks in the bag and sees that there are 6 blocks in the bag. Should Andre change his estimate based on this information? If so, what should the new estimate be? If not, explain your reasoning.

What are the coordinates of each point after quadrilateral ABCD is reflected across the y-axis?

Answers

A= (-1,1)
B= (-2,3)
C= (-4,3)
D= (-5,1)

help asap!!!!!!!!!!!!!!!!!

Answers

Answer:

126 meters squared

Step-by-step explanation:

To find the surface area

For the top and bottom it will be: l x w x 2(because there's a top and bottom)

3x6x2 = 36

For the sides (left and right) it will be: l x h x 2 (There's left and right)

3x5x2 = 30

For the front and back it will be w x h  x 2 (There's the front and the back)

6x5x2 = 60

Added it all together and you get 126

The surface area is 126 meters squared



what is the length of the missing leg? If necessary, round to the nearest tenth.​

Answers

Answer:

48 yards

Step-by-step explanation:

Use the Pythagorean theorem:

[tex] {a}^{2} = {52}^{2} - {20}^{2} = 2704 - 400 = 2304[/tex]

[tex]a > 0[/tex]

[tex]a = \sqrt{2304} = 48 \: yd[/tex]

what is the average voter turnout during an election? a random sample of 38 cities was asked to report the percent of registered voters who actually voted in the most recent election.

Answers

Here is the step by step explanation


345

A random sample of 38 cities was asked to report their voter turnout percentages, which can be used to estimate the average voter turnout in those cities. However, caution should be taken when making generalizations about the larger population of cities, since the sample size is relatively small.

The average voter turnout during an election can be calculated by taking the percentage of registered voters who actually voted in a sample of cities and finding the mean. In this case, a random sample of 38 cities was asked to report the percent of registered voters who voted in the most recent election. To calculate the average voter turnout, follow these steps:

1. Obtain the reported voter turnout percentages from each of the 38 cities in the random sample.
2. Add up all the percentages of voter turnout from the 38 cities.
3. Divide the sum of voter turnout percentages by the number of cities (38) to find the average voter turnout.

By following these steps, you will find the average voter turnout for the most recent election, based on the random sample of 38 cities. Keep in mind that the average voter turnout can vary depending on the election and location, as factors such as political climate, awareness, and accessibility can impact voter participation. This calculated average represents an estimation of the overall turnout and may not be completely representative of the entire population, but it provides a useful measure to understand voter engagement during elections.

To know more about political climate refer here:

https://brainly.com/question/28900517

#SPJ11

5. Heidi's family is trying to decide on the shorter
of two routes for a trip from Georgetown to
Cypress City. One route begins in Georgetown
and goes 53 miles to Cycle City, then 28 miles
to Aspen and 98 miles to Cypress City. The
second route also begins in Georgetown and
goes 28 miles to Canon City, then 49 miles to
Grover and 85 miles to Cypress City. Which
route is shorter and by how much?

Answers

Answer: We can find the total distance of the first route by adding the individual distances:

53 + 28 + 98 = 179 miles

Similarly, we can find the total distance of the second route:

28 + 49 + 85 = 162 miles

Therefore, the second route is shorter by (179 - 162) = 17 miles.

Step-by-step explanation:


in an article in the journal of management, joseph martocchio studied and estimated the costs of employee absences. based on a sample of 176 blue-collar workers, martocchio estimated that the mean amount of paid time lost during a three-month period was 1.3 days per employee with a standard deviation of 1.4 days. martocchio also estimated that the mean amount of unpaid time lost during a three-month period was 1.1 day per employee with a standard deviation of 1.6 days.



suppose we randomly select a sample of 100 blue-collar workers. based on martocchio

Answers

The probability shows that if the mean μ=1, then only 0.0027 is at least as small as the sample mean x=1.5. This also leads to the conclusion that if we believe that μ = 1, we must also believe that there is a 27 in 10,000 chance that our observed sample mean can be described as such.

To achieve the goal of this task, use the mean μ x and the standard deviation σ x.

The task has two conditions, the first is that the standard deviation σ is 1.3 days and the second is that the standard deviation σ is 1.8 days.

If the standard deviation σ is 1.3, then the mean μ is 1.4. And if the standard deviation is σ 1.8, then the mean is μ₁. In this case, the given standard deviation is μ 1.8, so use the second condition to achieve the task goal.

we know that:

μₓ = μ and σₓ = σ/√n

Given that:

μ = 1, σ = 1.8 and n = 100

So, by the formula of standard deviation σₓ,

σₓ = σ/√n = 1.8/√100

               = 0.18

Calculate the probability with the mean μ=1, and standard deviation

σₓ =0.18.

P(x > 1.5) = P(z > 0.5/0.18)

              = P( z > 2.78)

Looking at the z table, first, find the units and decimals in the first column of the z table. In this case, search for 2.7 first. Then look in which column the 100th value is placed. In this case, 0.08 and follow the number of lines placed 2.7.

Therefore, the value of 2.78 in table z is 0.9973 because z=0.9973, and the right tail area is 0.0027 or (1−0.9973).

Learn more about Probability:

https://brainly.com/question/30034780

#SPJ4

One of the sides of a parallelogram has the length
of 5 in. Can the lengths of the diagonals be
4 in. and 6 in.?

Answers

Answer:

Yes they can.

The only time they would have to be different lengths is if it was a square

R=[(a,1),(b,2),(c,3)] is it function or not

Answers

Answer:

Yes The set R = [(a,1),(b,2),(c,3)] is a Function.

Step-by-step explanation:

A function ia a relation between two sets ,where each element in domain is associated with only one range.

Some examples of function -

1- x2 (squaring) is a function

2- x3+1 is also a function

3- Sine, Cosine and Tangent are function

in the case the domain {a,b,c} and the range is {1,2,3}

IN R each domain is associated with only one element in range,So R SATISFIES the definiton of Function

To know more about Function:

brainly.com/question/14465109

brainly.com/question/4379163

The weights of newborn baby boys born at a local hospital are believed to have a normal distribution with a mean weight of 3186

grams and a variance of 385,641

. if a newborn baby boy born at the local hospital is randomly selected, find the probability that the weight will be between 3682

and 4552

grams. round your answer to four decimal places.

please need help asap

Answers

The probability that a randomly selected newborn baby boy's weight is between 3682 and 4552 grams is approximately 0.1979, or 19.79% when rounded to four decimal places.

To find the probability that a newborn baby boy's weight  Convert the weights to z-scores:

z = (X - μ) / σ, where X is the weight, μ is the mean, and σ is the standard deviation.

First, calculate the standard deviation:

σ = √variance = √385,641 ≈ 621

Now, calculate the z-scores for the given weights:

z1 = (3682 - 3186) / 621 ≈ 0.7986

z2 = (4552 - 3186) / 621 ≈ 2.1965

Use a standard normal table or a calculator with a standard normal probability function to find the probabilities corresponding to these z-scores:

P(Z ≤ 0.7986) ≈ 0.7879

P(Z ≤ 2.1965) ≈ 0.9858

Find the probability that the weight is between the two z-scores:

P(0.7986 ≤ Z ≤ 2.1965) = P(Z ≤ 2.1965) - P(Z ≤ 0.7986) ≈ 0.9858 - 0.7879 ≈ 0.1979

So, the probability that a randomly selected newborn baby boy's weight is between 3682 and 4552 grams is approximately 0.1979, or 19.79% when rounded to four decimal places.

for such more question on probability

https://brainly.com/question/13604758

#SPJ11

A quarter is about I Inch In
diameter. The word "Liberty"
makes about a 100° angle. How
long is the word in inches?

Answers

According to the question the word "Liberty" on the quarter is about 0.872 inches long.

what is diameter?

In geometry, a circle's diameter is any straight segment whose endpoint is on the circle and which passes through its centre. Another name for it is the circle's longest chord. Either idea can be used to determine a sphere's diameter. The diameter is indeed the length of both the line perpendicular to the two points at each end of the circle. If you think of length as the distance between two points, then diameter is length. The diameter of a circle is the separation between its two farthest points.

Since the quarter has a diameter of about 1 inch, we can use its diameter as a reference to estimate the length of the word "Liberty" on the quarter.

If the word "Liberty" makes about a 100° angle, that means it takes up about 100/360 or 5/18 of the circumference of the quarter. The circumference of a circle is given by:

C = 2πr

where C is indeed the circumference, pi (roughly 3.14), is a mathematical constant, and r is the circle's radius. The quarter's approximate 1 inch diameter means that the radius equals 1/2 inch, approximately 0.5 inches.

The circumference of the quarter is therefore:

C = 2π(0.5 inches) = π inches

The length of the word "Liberty" on the quarter is approximately 5/18 of this circumference, which is:

(5/18) × π inches ≈ 0.872 inches

So the word "Liberty" on the quarter is about 0.872 inches long.

To know more about diameter visit:

https://brainly.com/question/5501950  

#SPJ9

The histograms display the frequency of temperatures in two different locations in a 30-day period.

A graph with the x-axis labeled Temperature in Degrees, with intervals 60 to 69, 70 to 79, 80 to 89, 90 to 99, 100 to 109, 110 to 119. The y-axis is labeled Frequency and begins at 0 with tick marks every one unit up to 14. A shaded bar stops at 10 above 60 to 69, at 9 above 70 to 79, at 5 above 80 to 89, at 4 above 90 to 99, and at 2 above 100 to 109. There is no shaded bar above 110 to 119. The graph is titled Temps in Sunny Town.

A graph with the x-axis labeled Temperature in Degrees, with intervals 60 to 69, 70 to 79, 80 to 89, 90 to 99, 100 to 109, 110 to 119. The y-axis is labeled Frequency and begins at 0 with tick marks every one unit up to 16. A shaded bar stops at 2 above 60 to 69, at 4 above 70 to 79, at 12 above 80 to 89, at 6 above 90 to 99, at 4 above 100 to 109, and at 2 above 110 to 119. The graph is titled Temps in Desert Landing.

When comparing the data, which measure of variability should be used for both sets of data to determine the location with the most consistent temperature?

IQR, because Sunny Town is skewed
IQR, because Desert Landing is symmetric
Range, because Sunny Town is skewed
Range, because Desert Landing is symmetric
Question 2(Multiple Choice Worth 2 points)
(Comparing Data MC)

The data given represents the number of gallons of coffee sold per hour at two different coffee shops.


Coffee Ground
1.5 20 3.5
12 2 5
11 7 2.5
9.5 3 5
Wide Awake
2.5 10 4
18 4 3
3 6.5 15
6 5 2.5


Compare the data and use the correct measure of center to determine which shop typically sells the most amount of coffee per hour. Explain.
Wide Awake, with a median value of 4.5 gallons
Wide Awake, with a mean value of about 4.5 gallons
Coffee Ground, with a mean value of about 5 gallons
Coffee Ground, with a median value of 5 gallons

Answers

For the first question, the measure of variability that should be used for both sets of data to determine the location with the most consistent temperature is IQR, because it is robust to outliers and can provide a better representation of the spread of data for skewed distributions. The option "IQR, because Desert Landing is symmetric" is incorrect because the graph of Desert Landing is not symmetric.

For the second question, we need to compare the measures of center (mean and median) of the two sets of data to determine which shop typically sells the most amount of coffee per hour. To do this, we can calculate the mean and median of each set of data:

For Coffee Ground, the mean is (1.5+20+3.5+12+2+5+11+7+2.5+9.5+3+5)/12 = 6.25 gallons and the median is the middle value of the ordered set, which is 5 gallons.

For Wide Awake, the mean is (2.5+10+4+18+4+3+6.5+15+6+5+2.5)/11 = 6.136 gallons and the median is the middle value of the ordered set, which is 4.5 gallons.

Therefore, we can conclude that Wide Awake typically sells the most amount of coffee per hour, with a median value of 4.5 gallons. The option "Wide Awake, with a mean value of about 4.5 gallons" is incorrect because the mean value of Wide Awake is slightly lower than 4.5 gallons. The option "Coffee Ground, with a median value of 5 gallons" is incorrect because the median value of Coffee Ground is lower than the median value of Wide Awake. The option "Coffee Ground, with a mean value of about 5 gallons" is incorrect because the mean value of Coffee Ground is higher than 5 gallons.

2. The table below shows the lengths of four earthworms found by the lake. Earthworm A B C D Length (cm) 10.2 3 9- 4 9.23 9/²/2 2 Write the lengths in order from shortest to longest.​

Answers

From shortest to longest, the earthworms measure the following lengths:   B (3 cm), D (4.5 cm), C (9.23 cm) and A (10.2 cm)

how can we describe length ?

A physical concept known as length measures the gap between two points or the expanse of an object in one dimension.

Common units used to measure it include metres (m), feet (ft), millimetres (in), centimetres (cm), etc. In several disciplines, including mathematics, engineering, physics, and engineering, length is a crucial concept.

given

From shortest to longest, the earthworms measure the following lengths:

B (3 cm), D (4.5 cm), C (9.23 cm) and A (10.2 cm)

To know more about length visit :-

brainly.com/question/30100801

#SPJ9

pls solve thisss......​

Answers

The height of the cone is 15cm.

How to find the radius of the object?

From the question;

Height of cylinder = 28cm

Let the radius of the solid object = Rcm

The slant height of the cone = 17cm

Cost of painting = Rs. 140 per 100 sq cm

Cost of painting 1 cm² =  140/100 = RS1.4

The total cost of painting = Rs. 2851.2

Total area of the object =  total cost of painting/Cost of painting per sq cm

Total area of the object = 2851.2/1.4  = 2036.57143 cm²

Total surface area of object = CSA of Cylinder + CSA of cone + area of the circle at the bottom

Total surface area of the object = [tex]\pi rh + \pi rl + \pi r^2[/tex]

So, [tex]\frac{2851.2}{1.4}[/tex] =  [tex]\pi rh + \pi rl + \pi r^2[/tex]

[tex]\frac{2851.2}{1.4}[/tex] = [tex]2\pi r * 28 + \pi r * 17 + \pi r^2[/tex]

[tex]\frac{2851}{1.4}[/tex] = [tex]\frac{1232}{7}r =+\frac{374}{7} r + \frac{22}{7} r^2[/tex]

[tex]\frac{2851}{1.4}[/tex] = [tex]\frac{1606}{7} r + \frac{22}{7} r^2[/tex]

[tex]\frac{2851}{2}[/tex]= [tex]1606r + 22r^2[/tex]

[tex]14256 = 1606r + 22r^2[/tex]

[tex]22r^2 + 1606r - 14256 =0[/tex]

Solving the quadratic equation, the possible value of radius are:

r = 8cm

r = -81cm

r = -81cm will be neglected because radius can not be negative.

Therefore, the radius of the object is 8cm

To find the height of the cone, we should know that the relation between radius, height and slant height of the cone is:

[tex]l^2 = r^2 + h^2[/tex]

[tex]h=\sqrt{l^2 - r^2}[/tex]

[tex]h=\sqrt{17^2 - 8^2}[/tex]

[tex]h=\sqrt{225}[/tex]

[tex]h=15cm[/tex]

Therefore, height of  cone in the solid object is 15cm

Learn about radius here https://brainly.com/question/27696929

#SPJ1

Solve The table shows the costs of a membership and fruit baskets at a discount warehouse club. Item Cost ($) Membership Fee 30 Fruit Basket 15 Mrs. Williams paid a total of $105 for her annual membership fee and several fruit baskets as gifts for her coworkers. Solve the equation 15x+30=105 to find the number of fruit baskets Mrs. Williams purchased.
PLS HELP!!! (AND HURRY)

Answers

Answer:

The given equation is:

15x + 30 = 105

Here,

15x represents the total cost of the fruit baskets purchased, and

30 represents the cost of the membership fee.

To find the number of fruit baskets purchased (x), we must isolate the variable on one side of the equation.

Subtracting 30 from both sides, we get:

15x = 105 - 30

15x = 75

Dividing both sides by 15, we get:

x = 5

Therefore, Mrs. Williams purchased 5 fruit baskets for her coworkers.

a candy distributor needs to mix a 10% fat-content chocolate with a 50% fat-content chocolate to create 100 kilograms of a 14% fat-content chocolate. how many kilograms of each kind of chocolate must they use?

Answers

The candy distributor needs to use 30 kilograms of 10% fat-content chocolate and 70 kilograms of 50% fat-content chocolate to create 100 kilograms of a 14% fat-content chocolate.

To solve this problem, we can use the method of mixture problems, which involves setting up a system of equations. Let x be the number of kilograms of the 10% fat-content chocolate and y be the number of kilograms of the 50% fat-content chocolate.

We have two equations based on the fat content and the total weight of the mixture:

0.1x + 0.5y = 0.14(100) (equation for fat content)

x + y = 100 (equation for total weight)

We can solve this system of equations using substitution or elimination. Using substitution, we can solve for x in terms of y from the second equation and substitute it into the first equation:

x = 100 - y

0.1(100 - y) + 0.5y = 0.14(100)

10 - 0.1y + 0.5y = 14

0.4y = 4

y = 10

Then we can substitute y = 10 back into the equation for x and get:

x = 100 - y = 100 - 10 = 90

To know more about elimination, refer here:

https://brainly.com/question/14619835#

#SPJ11

Find the height of the basketball hoop

Answers

Answer: 13.51 (not in inches format)

Step-by-step explanation:

tan(x) = 4.384/12

x = tan^-1 (4.384/12)

x = 20.068°

tan(20.068) = y/(12+25)

tan(20.068) = y/37

20.068 = tan^-1 (y/37)

y = 13.51

Answer:

Step-by-step explanation:

To solve this with similar triangles - you need to set up a proportion.

I changed it all to inches.

12 ft = 144 in

4.384 ft = 51. 84 inches

12 + 25 (you need to add the base of the triangle) = 37 ft = 444 inches

set up smaller triangle in proportion to bigger triangle

51.84"/144" = x/444

cross mulitply then divide

51.84 times 444 = 23016.96

23016.96 ÷ 144 = 159.84 inches

Change back to feet by dividing by 12

159.84 ÷ 12 = 13.32 ft

Describe the transformation of the graph of f(x) to g(x). f(x) = x^2 g(x) = (x - 2)^2 + 5

Answers

The transformation of the graph of f(x) to g(x) is defined as: 2 units shift on the left side and 5 units shift upward.

Explain about the transformation:

Think about the function f (x). We measure the movement using the x- and y-axes on a coordinate grid. The following are guidelines for function transformations that could be used with function graphs. All algebraic and graph of transformations are possible.

Transformations can be divided into four categories: translation, rotation, reflection, plus dilation.

Given :

Transformation of the graph of f(x) --->  g(x)

f(x) = x² g(x) = (x - 2)² + 5

There is a shift of 2 units on the left. Subtract 2 from x to get the value (x - 2)

There is a shift of 5 units upward. Add 5 on the function f(x)  to get the function g(x).

Thus, the transformation of the graph of f(x) to g(x) is defined as: 2 units shift on the left side and 5 units shift upward.

Know more about the transformation

https://brainly.com/question/30228009

#SPJ1

Help please in need this asap

Answers

For the given values, the standard deviation for this data set is approximately 3.67 minutes.

What is standard deviation?

In statistics, standard deviation is a measure used to quantify the amount of spread or dispersion of a set of numerical data around the mean. This measure indicates how much the data values vary from the average value of the dataset.

To find the standard deviation, you can follow these steps:

Find the mean (average) of the data set:

mean = (11 + 7 + 14 + 2 + 8 + 13 + 3 + 6 + 10 + 3 + 8 + 4 + 8 + 4 + 7) / 15 = 7.2

Subtract the mean from each data point:

(11 - 7.2), (7 - 7.2), (14 - 7.2), (2 - 7.2), (8 - 7.2), (13 - 7.2), (3 - 7.2), (6 - 7.2), (10 - 7.2), (3 - 7.2), (8 - 7.2), (4 - 7.2), (8 - 7.2), (4 - 7.2), (7 - 7.2)

Simplifying, we get:

3.8, -0.2, 6.8, -5.2, 0.8, 5.8, -4.2, -1.2, 2.8, -4.2, 0.8, -3.2, 0.8, -3.2, -0.2

Square each result:

13.44, 0.04, 46.24, 27.04, 0.64, 33.64, 17.64, 1.44, 7.84, 17.64, 0.64, 10.24, 0.64, 10.24, 0.04

Find the mean (average) of the squared results:

(13.44, 0.04, 46.24, 27.04, 0.64, 33.64, 17.64, 1.44, 7.84, 17.64, 0.64, 10.24, 0.64, 10.24, 0.04) / 15 = 12.49

Take the square root of the mean:

[tex]\sqrt{(12.49)[/tex] ≈ 3.67

Therefore, the standard deviation for this data set is approximately 3.67 minutes.

To learn more about standard deviation visit:

https://brainly.com/question/475676

#SPJ1

you flip it twice more and get heads twice more. now what is the conditional probability that the coin you chose is fake?

Answers

The conditional probability that the coin chosen is fake given that it was flipped three times and all three flips resulted in heads is higher than the initial probability.

Let A be the event that the coin chosen is fake, and B be the event that the three flips resulted in heads. We are given that the probability of choosing the fake coin is 0.1, i.e. P(A) = 0.1, and the probability of getting heads with the fake coin is 1, i.e. P(B|A) = 1. The probability of getting heads with the fair coin is 0.5, i.e. P(B|A') = 0.5, where A' is the event that the coin chosen is fair. Using Bayes' theorem, we can calculate the conditional probability of A given B:

P(A|B) = P(B|A) * P(A) / (P(B|A) * P(A) + P(B|A') * P(A'))

Plugging in the given values, we get:

P(A|B) = 1 * 0.1 / (1 * 0.1 + 0.5 * 0.9) = 0.18

Therefore, the conditional probability that the coin chosen is fake given that it was flipped three times and all three flips resulted in heads is 0.18, which is higher than the initial probability of 0.1. This means that the evidence of three consecutive heads increases the likelihood that the coin is fake.

To learn more about conditional probability here:

brainly.com/question/30144287#

#SPJ11

19 3/5 × 20 2/5 secial product patterns to find the product

Answers

Answer: 19 3/5 x 20 2/5 = 9996/25 = 399 21/25

due tomorrow , please help!!

Answers

The surface areas are 756.87 km², 2567.6 in², 853.91 yd², 749.72 cm² and the area to paint is 3268.60 in²

Calculating the surface areas

Figure 9

This is calculated as

Area = Base area + 1/2 * Perimeter * Slant height

So, we have

Surface area = (1/4 * 14² * √3) + 1/2 * (14 + 14 + 14) * 32

Surface area = 756.87 km²

Figure 10

This is calculated as

Area = Sum of side areas

So, we have

Surface area = 2 * 1/2 * (35 + 10) * 20.3 + 32 * 17 + 10 * 17 + 20.3 * 17 + 35 * 17

Surface area = 2567.6 in²

Figure 11

Start by calculating the radius using

(2r)² = 19.4² - 14.4²

2r = 13

So, we have

r = 6.5

This area is then calculated as

Area = 2πr(h + r)

So, we have

Area = 2 * 22/7 * 6.5(14.4 + 6.5)

Surface area = 853.91 yd²

Figure 12

This area is calculated as

Area = lw + l√[(w/2)² + h²] + w√[(l/2)² + h²]

So, we have

Area = 15 * 18 + 18√[(15/2)² + 12²] + 15√[(18/2)² + 12²]

Surface area = 749.72 cm²

Area to paint

Without painting the bottom, the area is

Area = 2 * 1/2 * 34 + 42.8 + 36 * √(34² + 42.8²) + 34 * 36

Evaluate

Area = 3268.60 in²

Volume of the cone

Unclear dimensions

Read more about surface areas at

https://brainly.com/question/26403859

#SPJ1

you have 40 scarves and 55 hats to make identical donation bags. you make the greatest amount of donation bags with no clothing left over. how many scarves and hats are in each donation bag?

Answers

To create identical donation bags, you will need 55 hats and 40 scarves. You produce the most donation bags without any extra apparel. Each donation package contains 11 hats and 8 scarves.

To make the greatest amount of donation bags with no clothing left over, we need to find the greatest common factor (GCF) of 40 and 55. We can do this by finding the prime factors of both numbers:

[tex]40 = 2 * 2 * 2 * 5[/tex]

55 = 5 x 11

The GCF is the product of the common prime factors, which is 5. This means we can make 5 identical donation bags.

To find out how many scarves and hats are in each donation bag, we can divide the total number of scarves and hats by the number of donation bags:

Number of scarves per bag = 40 / 5 = 8 scarves

Number of hats per bag = 55 / 5 = 11 hats

Therefore, each donation bag will contain 8 scarves and 11 hats.

To learn more about the greatest common factor, refer:-

https://brainly.com/question/11221202

#SPJ1

URGENT PLEASE HELP ME !!!!!!
What are the coordinates of the point on the directed line segment from (-10,10) to (2,-8) that partitions the segment into a ratio of 2 to 1?

Answers

The coordinate of the segment in the ratio is (-2,-2).

What is ratio?

When two numbers are compared, the ratio between them shows how often the first number contains the second. As an illustration, the ratio of oranges to lemons in a dish of fruit is 8:6 if there are 8 oranges and 6 lemons present.

Partitions the line segment in the ratio A to B... then,

=> x-coordinate is : x1 +[tex]\frac{ A(x2-x1)}{(A+B)}[/tex]

=> y-coordinate is: y1 + [tex]\frac{A(y2-y1)}{(A+B)}[/tex]

Here A = 2 , B = 1 and [tex](x_1,y_1)=(-10,10)[/tex] , [tex](x_2,y_2)=(2,-8)[/tex] .

x-coordinate = -10+[tex]\frac{2(2+10)}{(2+1)}[/tex] =  -10 + [tex]\frac{2(12)}{3}[/tex] = -10 + 2(4) = -10+8 = -2

y-coordinate = 10+[tex]\frac{2(-8-10)}{(2+1)}=10+\frac{2(-18)}{3}[/tex] = 10+2(-6) = 10-12 = -2.

Hence the coordinate of the segment in the ratio is (-2,-2).

To learn more about ratio refer the below link

https://brainly.com/question/12024093

#SPJ1

GEOMETRY PLS HELP ASAP

Answers

Answer:

1)  5

Step-by-step explanation:

Trapezoid Midsegment Theorem:

EF = (DC + AB) / 2

2x + 2 = ((x + 3) +(5x - 9)) / 2

4x + 4 = 6x - 6

-2x = -10

x = 5

Other Questions
can somebody helppp please, do all the tasks from a and b.Thank u!!!in photo. dana wants to have $5000 available for a down payment on a new car when she finishes her degree in four years. if her money market account has an interest rate of 3.75% compounded monthly, how much of her graduation money does she need to set aside for the car? round answer to 2 decimal places. Siza reads at a rate of 200 words per minute. Calculate how many minutes it will take her to read 300 words. Give your answer in minutes and seconds. A ramp is being built to ga up a vertical increase of 10 feet. Codes require the angle theramp makes with the ground to be no more than 15. At least how long will the actualramp need to be to pass code? in a titration, 14.128 ml of a 1.972 m weak base solution are placed in a 125 ml erlenmeyer flask. a 1.972 m solution of hclo4 (aq) is placed in the buret and filled to the 0.00 ml mark. hclo4 (aq) solution is added to the flask and the buret reading is now 1.972. what is the ph of the solution? Evan sold half his story books and then bought 17 more. He now has 32 books. With how many did he begin? you want to buy a $31,000 car. you can make a 10% down payment, and will finance the balance with a 2% interest rate for 48 months (4 years). what will your monthly payments be? brianly which of the following statements about the f distribution is false? group of answer choices the f distribution is always a left-tailed test. the f distribution is skewed to the right. the f statistic is greater than or equal to zero. as the degrees of freedom of for the numerator or denominator get larger, the curves approximates the normal distribution. how did life change for american women during world war ii? group of answer choices they took the place of men in many war industries. they assumed a greater role in u.s. government. they received greater educational opportunities. they found it easier to be admitted to college next If two people disagree on metaethics, they will definitely disagree on the bestoutcome of a particular ethical issue such as abortion. How would you rewrite this sentence: Las chicas usan las sudaderas. which supreme court case ruled that detainees in guantanamo bay are entitled to habeas corpus rights? ENGINEERING LOUNSMISS A manufacturer purchased and installed a production machine 6 years ago at a cost of $40,000. Since then the machine has been depreciated for tax purposes to a value of $7,000 and it now requires replacement. A new machine will be purchased for $60,000 and the old machine sold to a used equipment dealer for $10,000. Which of the four dollar values above is a book cost, ? emma commutes more than an hour each way to work, five or six days per week. the commute is very stressful. she has tried many different routes to work, altered her work schedule, and even considered moving. emma's coping strategy can be best described as: What value of x makes this equation true 0.6x-5=0.1x+7 YZ is tangent to the circle at Z. Find the measure of minor arc WX. what is the ph at the equivalence point of a weak base-strong acid titration if 20.00 ml of naocl requires 28.30 ml of 0.25 m hcl to reach the equivalence point? ka which term describes an acid according to one acid base theory you are sharing your computer screen to collaborate on a document. which view should vou use to minimize the ribbon and give vour document the most screen space? Tracy is the only outfitter renting stand-up paddle boards at the lake near her cottage and is considered a monopolist. The demand curve for stand-up paddle board rentals is given by P = 75 0.5Q, and the marginal cost is MC = 2Q. Assume that ATC at the profit-maximizing output is $12.50. Tracy's average profit is: