The average time is 7.5. The average is calculated by dividing the total number of values in a given set by the sum of all the values in that set.
How to calculate average ?An average is a single number chosen to represent a group of numbers; it is often the sum of the numbers divided by the number of numbers in the group. Average The arithmetic mean is calculated by adding a set of numbers, dividing by their count, and then taking the result.
If every number in a list is the same number, then that number also serves as the average for the list. Every one of the diverse varieties of average shares this characteristic.
An average of the values in a sample of data can be used to define a mean. In other words, the arithmetic mean is another name for an average. A mean is a term used to describe the average.
Average = Sum / Count
Sum = 7.48 + 7.45 + 7.90 + 7.37 + 7.25 + 7.40 + 7.55 + 7.60
= 60 / 8
= 7.5
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Can some one help me with this question its hard :( down below ill give brainliest
and plz explain
x*x is x^2, because the ^2 simply means that the x is multiplying by itself
(Ex. if you had x^3, you would have x*x*x, or if you had x^4, you would have x*x*x*x and it goes the other way around as well, meaning x*x*x*x*x would be x^5)
Answer:
B. x²
Step-by-step explanation:
A number/variable multiplied by itself would be a power, in this case to the second power.
For example:
x*x*x = x³
What is the Value of P? 9=p÷9
Answer:
p = 81
Step-by-step explanation:
9 = [tex]\frac{p}{9}[/tex] Multiply both sides by 9
9(9) = [tex]\frac{p}{9}[/tex][tex](\frac{9}{1})[/tex] another name for 9 is [tex]\frac{9}{1}[/tex]
81 = p
Which expression is equivalent to (x^2-2x-37)\(x^2-3x-40)
Therefore , the solution of the given problem of equation comes out to be [tex]x^{2}[/tex]-2x-37/(x-8) (x+5).
Describe equation.An equation is a mathematical formula that connects two assertions using the equal sign (=) to denote equivalence. In algebra, an equation is a mathematical statement that establishes the equality of two mathematical expressions. For instance, an equal sign separates the components 3x + 5 and 14 in the equation 3x + 5 = 14. A mathematical formula is used to express the connection between two phrases on either side of a letter. Frequently, there is just one variable, which is also the symbol. for example, 2x - 4 = 2.
Here,
Given :([tex]x^{2}[/tex]-2x-37)/([tex]x^{2}[/tex]-3x-40)
[tex]x^{2}[/tex]-3x-40
Factor[tex]x^{2}[/tex]-2x-37
[tex]x^{2}[/tex]-2x-37/(x-8) (x+5)
Thus ,
the factors comes out to be [tex]x^{2}[/tex]-2x-37/(x-8) (x+5)
Therefore , the solution of the given problem of equation comes out to be [tex]x^{2}[/tex]-2x-37/(x-8) (x+5).
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Can anyone help me solve this equation: x^{2} +5x+6=0
Answer: x= -2, -3
Step-by-step explanation: Move all terms to the left side and set equal to zero. Then set each factor equal to zero.
In convex hexagon $ABCDEF$, all six sides are congruent, $\angle A$ and $\angle D$ are right angles, and $\angle B$, $\angle C$, $\angle E$, and $\angle F$ are congruent. The area of the hexagonal region is $2116(\sqrt2 1)$. Find $AB$.
The area of the hexagonal region exists 2116(√2 + 1) then the value of AB is 046.
What is meant by convex hexagon?All of the inner angles and all of the vertices must be smaller than 180 degrees for a convex hexagon. There are both regular and irregular convex hexagons.
There are no angles inside a convex hexagon. More specifically, no internal angle may exceed 180 degrees. Any internal angle that exceeds 180 degrees is concave.
Let the side length be x
The diagonal BF = √(AB² + AF²) = √(x² + x²) = x√2.
Then the areas of the triangles AFB and CDE in total exists (x²/2) × 2, and the area of the rectangle BCEF equals x × x√2 = x²√2.
Let the equation be
2116(√2 + 1) = x²√2 + x²
simplifying the above equation, we get
2116(√2 + 1) = x²(√2 + 1)
2116 = x²
x = 46
Therefore, the value of AB exists 0.46.
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The area of the hexagonal region exists 2116(√2 + 1) then the value of AB is 046.
What is meant by convex hexagon?A convex hexagon requires that all of the inner angles and all of the vertices be smaller than 180 degrees. Convex hexagons come in both regular and irregular varieties.
The interior of a convex hexagon is flat. No internal angle may be greater than 180 degrees, to be more precise. Concavity is defined as an interior angle greater than 180 degrees.
Let the side length be x
The diagonal BF = √(AB² + AF²) = √(x² + x²) = x√2.
Then the areas of the triangles AFB and CDE in total exists (x²/2) × 2, and the area of the rectangle BCEF equals x × x√2 = x²√2.
Let the equation be
2116(√2 + 1) = x²√2 + x²
simplifying the above equation, we get
2116(√2 + 1) = x²(√2 + 1)
2116 = x²
By taking root both sides,
x = 46
Therefore, the value of AB exists 0.46.
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So basically you have to: highlight all of the words that can be used to describe the following expression in another color. Sorry if the pic is a little blurry but I really need help with this!!! I highlighted some of them already. Plssss
Answer:
7m: multiplied by, times
x^2: squared, to the power of
2 - 4m: less than, difference
3r/b: quotient
4k + 7: increased by, more than, altogether
3(2 + y): multiplied by, per, product
good luck!!
Using data from 1944 through 2000, the histogram shows the number of years that had a particular number of hurricanes reaching the East Coast of the U.S. For example, in 14 of those years there was exactly one hurricane each year that reached the East Coast of the U.S. What is the median number of hurricanes per year reaching the East Coast from 1944 through 2000
The median number of hurricanes per year reaching the East Coast from 1944 through 2000 is two.
What is median number?Median number is the middle value of a set of numbers. It is the number found at the midpoint of a sorted data set, when all the numbers are arranged in numerical order from lowest to highest. The median number is used to determine the average of a set of numbers, and is often used to represent the central tendency of the data. To calculate the median, first arrange the numbers from lowest to highest, then locate the middle value. If there is an even number of values, the median is the average of the two middle numbers.
This is calculated by taking the middle value of the data set. In this case, there were 18 years with one hurricane, 16 years with two hurricanes, 13 years with three hurricanes, and six years with four hurricanes. Thus, the median number of hurricanes in this data set is two.
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Please help? I’m really confused
Answer:
48.2 in^3
Step-by-step explanation:
It'd be easier to calculate the volume if you'd change the mixed numbers to mixed numers with decimal fractions:
2 1/2 becomes 2.5
3 2/3 becomes 3.67
5 1/4 becomes 5.25
Then V = L*W*H, or
V = (5.25 in)(3.67 in)(2.5 in) = 48.2 in^3
Coach Taylor asked his team to record the distance they ran during practice. It’s a dot plot so someone plssss help me I’ll give them 10 points!
The range between 3/16 & 3/8 is where the line plot with the difference of daily mileage logged by each racer in a group is still most obvious.
Line plot: what is it?A line graph, liner plot, or line chart is a graph that uses lines to link the individual data points. For a specific time period, quantitative values are displayed as a line graph. Line graphs are widely used in finance to depict the past market movements of a securities or asset.
Here,
calculation
The number line indicates that there's more than or equal to 3 marks when there are 7 markings either on or to the right of 3. The fraction must first have the same denominators.
=> 3/8 x 2 = 6/16
=> 1/2 x 8 = 8/16, 3/8 x 2 = 6/16
=> 5/8 x 2 = 10/16, 1/2 x 8 = 8/16
Since they all have the same numerator, we can now compare them.
=> 3/16 - 1/16 = 2/16
=> 6/16 - 3/16 = 3/16
=> 8/16 - 6/16 - 2/16
=> 10/16 - 8/16 = 2/16
The largest distinction is between 3/16 and 3/8 (6/16 vs. 3/16).
The range between 3/16 and 3/8 is where the line plot with the difference in daily mileage logged by each runner in a group is most obvious.
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The complete question is " Coach Taylor asked his team to record the distance they ran during practice The line plot shows the number of miles the individual members in a group of runners run each day. How many runners run at least 3 miles per day?."
upper and lower bounds question
The upper bound and lower bound of a using the equation will result to
upper bound value 136015.499
lower bound value 136014.500
How to find the upper bound and lower bound valuesEvaluating the given expression a = b + 2c
where
b = 15 to 2 significant figures
c = 68 000 to 2 significant figures
solving for a
a = b + 2c
a = 15 + 2(68000)
a = 136015
The bound values
upper bond value is the largest possible vale of a
upper bond value = 136015.499
lower bound value is the lowest possible value of a
lower bound value = 136014.500
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HELP NEED HELP!
Choose the similar triangles that have a hypotenuse defined by the equation
Answer:
red
Step-by-step explanation:
In a batch of 140 water purifiers, 28 were found to be defective. What is the probability that a water purifier chosen at random will be defective?
Answer:
20%
Step-by-step explanation:
28 / 140 = 0.20 which is 20%
Mr Davis is creating a spice mixture for a recipe.2/5 of the spice mixture was oregano. 1/5 of the mixture was basil. The rest of the mixture was chilli powder
Answer:2/5
Step-by-step explanation:
2/5+1/5 equals 3/5, so if the rest of the mixture is chili powder, it would be 2/5
Henry is using cardboard to build a box in the shape of a rectangular prism. A net of the box is shown.
10 ft
4 ft
10 ft.__
6 ft!
4 ft
4 fti
1
What is the surface area of the box?
A. 84 square feet
B. 216 square feet
O c. 240 square feet
D. 248 square feet
E. 280 square feet
Answer:240 square feet
Step-by-step explanation:
Answer:240
Step-by-step explanation:
Adella wants to have $10,000. 00 saved in 5 years. Her local bank offers an account at 4% APR
compounding monthly. How much would she need to deposit to reach her goal?
$8000. 33
$8191. 67
$8189. 67
$8219. 29
The deposit to be made to save $10,000 in 5 years is $8189.67 when compounded monthly.
What is compound interest?Compound interest is interest on a loan or deposit that is calculated on both the principal amount and the interest accumulated in previous periods. It differs from simple interest, which is calculated on the principal only. Compound interest can be more favorable to the lender and more expensive to the borrower. The frequency of compounding (annual, quarterly, monthly, etc.) also affects the total amount of interest earned or paid.
Given that:
A = $10,000
r = 4% = 0.04
t = 5 years
n = 12 (since the compounding is monthly)
P = ?
The compound interest is given as follows:
[tex]A= P(1+\frac{r}{n} )^{nt}[/tex]
Substituting the values in the formula we have:
[tex]10000= P(1+\frac{0.04}{12} )^{(12)(5)}\\\\10000= P(1+0.0033 )^{(60)}\\\\10000= P(1.0033 )^{(60)}\\\\10000= P(1.2185)\\\\P= \frac{10000}{1.2185} \\\\P=8189.67[/tex]
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Adam is trying to spot a meteor. The probability he will see one in the next 10 minutes is 0.56. What are the odds in favor of Adam seeing a meteor in the next 10 minutes?
The odds from the probability is 14 : 11
How to determine the odds from the probability ?The value of the probability is given as
Probability in the next 10 minutes = 0.56
This means that
p = 0.56
Represent the probability as a fraction
So, we have the following representation
p = 56/100
Simplify the fraction
p = 14/25
To convert the probability to odds, we make use of the following equation
Probability = Odds/(1 + Odds)
Substitute the known values in the above equation, so, we have the following representation
14/25 = Odds/(1 + Odds)
So, we have
(1 + Odds) * 14/25 = Odds
This gives
14/25 + Odds * 14/25 = Odds
Evaluate the like terms
11/25 * Odds = 14/25
So, we have
Odds = 14/11
Express as ration
Odds = 14 : 11
Hence, the odds is 14 : 11
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The table shows the lowest elevations for several countries. The
lowest elevation in the United States is -86 meters. Between the
elevations of which two countries is the elevation for the United
States?
Country
Argentina
China
Egypt
Ethiopia
Libya
Morocco
Lowest
Elevation (m)
-105
-154
-133
-125
-47
-55
4. Find the value of each variable in the parallelogram.
Therefore , the solution of the given problem of linear equation comes out to be x= -6 , y = 45 and z =60.
A linear equation is precisely what?The algebraic equation y=mx+b stands in for a linear equation. The slope is m, and B is the y-intercept. The last phrase referred to a "simple formula with two elements" where both y and x are variables. Bivariate linear equations are calculations involving two variables. Here are a few examples: The outcomes are 2x - 3 = 0; 2y = 8; m + 1 = 0; x/2 = 3; x + y = 2; and 3x - y + z = 3. If the answer to a mathematical equation is in the form y=mx+b, where m denotes the slope and b the y-intercept, the equation is said to be linear.
Here,
Given :
According to parallelogram laws
adjacent side sum is 180 degree
=> 4y + 3x-18 = 180
=> 4y+3x = 162
and
2x+12+3z = 180
=> 2x + 3z = 168
and
=> 3x+3z = 162
=> x + z =54
=> z = 54-x
So,
2x + 3(54-x) = 168
=> 162 - 3x+2x =168
=> -x = 6
or x =-6
and
z = 60
and
y = 162 - 3x /4
=> y= 162 +18 /4
=> y =180/4
=> y = 45
Therefore , the solution of the given problem of linear equation comes out to be x= -6 , y = 45 and z =60.
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Four friends, Abe, Bob, Carl, and Darrel, are going to a fun park .They want to ride go-karts. The price to ride the go-karts is $2.15 for 5 minutes,$4.00 10 minutes ,or $6.75 for 15 minutes .Which price is the best deal?Explain why? math question
Answer:
Since in this option the minute is paid at $0.40, the best option is 10 minutes for $ 4.
Step-by-step explanation:
Since four friends, Abe, Bob, Carl, and Darrel, are going to a fun park, and they want to ride go-karts, and the price to ride the go-karts is $ 2.15 for 5 minutes, $ 4.00 for 10 minutes, or $ 6.75 for 15 minutes, to determine which price is the best deal, the following calculations must be performed:
2.15 / 5 = 0.43
4/10 = 0.40
6.75 / 15 = 0.45
Therefore, since in this option the minute is paid at $ 0.40, the best option is 10 minutes for $ 4.
What is the gradient of 2x 3y 6?
The gradient of the linear equation 2x + 3y + 6 is (3/2).
The gradient of a linear equation in the form of y = mx + c is m, which represents the slope of the line. The slope is defined as the ratio of the change in y to the change in x. It represents the steepness of the line.
The equation 2x + 3y + 6 is not in the form of y = mx + c. It is in the form of Ax + By + C = 0, which is the general form of a linear equation. To find the gradient of such an equation we need to divide -A/B. In this case, the gradient of the line is -2/3.
The gradient of a line gives us the direction of the line, it is the slope of the line. It tells us how steep the line is and if it is going up or down. A positive gradient means the line is going up and a negative gradient means the line is going down.
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Use the square identities to simplify 2 cos^2 x cos^2 x
a.(3-4cos(2x)-cos(4x))/(4)
b.(3+4cos(2x)+cos(4x))/(4)
c.(3+4cos(2x)-cos(4x))/(4)
d.(3-4cos(2x)+cos(4x))/(4)
Answer:
D
Step-by-step explanation:
Please help with this
Answer:
slope = 3/2
Step-by-step explanation:
rise/run = 60/40 = 6/4 = 3/2
Totally T's is a company that makes t-shirts. Workers go on strike and the factory is closed. What will happen to the supply of t-shirts?
Answer the 3 questions below related to this scenario.
Complete sentences are not required. Please number each answer.
1. Will there be an increase or decrease?
2. Which way will the graph shift?
3. What is the determinant?
convert y=2(x-5)(x+2) into standard form
Answer:
Step-by-step explanation:
y=2x-5+2
then you do minus 2 on both sides
Hope this helped!
Please answer correctly !!!!! Will mark Brianliest !!!!!!!!!!!!!!
NO SCAM LINKS !!!!! ASAP
Answer:
sinL = [tex]\frac{72}{97}[/tex]
Step-by-step explanation:
sin L = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{KM}{LK}[/tex] = [tex]\frac{72}{97}[/tex]
Answer:
Step-by-step explanation:
1. A jeweler is creating circular bracelets made of copper wire. If the diameter of each
bracelet is 3 inches, how many inches of copper wire will the jeweler need to make 20
bracelets? Round your answer to the nearest tenth of an inch.
Step-by-step explanation:
divide 3 by 2 because that would be the radius and you need the radius to find the area so do 1.5 times 1.5 times pi (3.14ish) and you should get around 7.07 then times that by 20 because the jewler is making 20 of them and then you should get about 141.4 inches
Ben wants to buy a binder and some penicals from the school store.binders coast 2.25 each of the pencials coast 0.75 each.how much will it coasg ben to buy 1 binder and P penicals
The total cost for Ben to buy 1 binder and P pencils is 2.25 + 0.75 P.
What is Multiplication?Multiplication of two numbers is defined as the addition of one of the number repeatedly until the times of the other number.
a × b means that a is added to itself b times or b is added to itself a times.
Cost of a binder = 2.25
Cost of a pencil = 0.75
We have to find the total cost for Ben to buy 1 binder and P pencils.
Cost of 1 binder = 2.25
Cost of P pencils = 0.75 × P = 0.75 P
Total cost of 1 binder and P pencils = 2.25 + 0.75 P
Hence the total cost for Ben to buy 1 binder and P pencils is 2.25 + 0.75 P.
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Which statement about the offer are true ? Check all that apply
Answer: The first and third options are correct.
Step-by-step explanation:
( NO LINKS ) How many edges does this prism have? *
A. 4
B. 8
C. 12
Answer:
C. 12
Step-by-step explanation:
An ice cream cone has a radius of 7 cm and a height of 8 cm
Answer:
TSA of ice cream cone = 330 cm^2
Step-by-step explanation:
Total Surface Area of ice cream cone = pie r( r+h )
22/7 * 7 (7+8)
22 ( 7+8)
22*15
= 330 cm. square