the option that is not a way for Isabelle to get a representative sample of the most popular music group of students in her community is D. ask every student at a local movie theater.
The reason is that asking every student at a local movie theater is a form of convenience sampling, where the sample is chosen based on convenience and accessibility, rather than being selected randomly from the entire population of interest. It may not provide a representative sample of the community's music preferences since the population of students who attend a movie theater may not be the same as the general population of students in the community. In contrast, options A, B, and C suggest a form of systematic sampling, where every nth student is selected from a randomly chosen starting point, which can help to ensure that the sample is more representative of the general population of students in the community.
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convert to slope intercept (y=mx+b)
Sales of portable MP3 players grew approximately exponentially from $0.07 billion in 2001 to $0.91 billion in 2005. Predict the sales of MP3 players in 2008
the sales of portable MP3 players in 2008 will be approximately $3.50 billion. To predict the sales of MP3 players in 2008, we need to first understand the exponential growth pattern of sales from 2001 to 2005.
We are given that sales grew approximately exponentially from $0.07 billion in 2001 to $0.91 billion in 2005. This means that the sales data can be modeled by an exponential function of the form:
[tex]S(t) = a * b^t[/tex]
where S(t) is the sales at year t, a is the initial sales value (in 2001), and b is the growth factor per year. We can find the values of a and b by using the given sales data.
When t = 0 (in 2001), S(t) = $0.07 billion. So, we have:
[tex]0.07 = a * b^0\\a = 0.07[/tex]
When t = 4 (in 2005), S(t) = $0.91 billion. So, we have:
[tex]0.91 = 0.07 * b^4b = (0.91/0.07)^(1/4) = 1.770[/tex]
Therefore, the exponential function that models the sales data is:
[tex]S(t) = 0.07 * (1.770)^t[/tex]
To predict the sales of MP3 players in 2008, we need to find the value of S(7) (since 2008 is 7 years after 2001). We have:
[tex]S(7) = 0.07 * (1.770)^7= $3.50 billion[/tex]
Therefore, we can predict that the sales of portable MP3 players in 2008 will be approximately $3.50 billion.
It is important to note that this is a prediction based on the data we have and the model we have used. The actual sales value in 2008 could be different due to various factors such as market changes, competition, and technological advancements.
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pls help asap!
A net of a rectangular prism is shown.
A net of a rectangular prism with dimensions 5 and three-fourths centimeters by 4 centimeters by 11 and three-fourths centimeters.
What is the surface area of the prism?
five hundred fifty and one-fourth cm2
four hundred twelve and three-fourths cm2
two hundred seventy-five and one-eighth cm2
one hundred thirty-seven and nine-sixteenths cm2
The surface area of the prism from the net is 260.5 cm².
Calculating the surface areaThe rectangular prism has dimensions of length, width, and height given by 5 and three-fourths cm, 4 cm, and 11 and three-fourths cm respectively.
To find the surface area of the prism, we need to find the area of each of its six faces and then add them up.
So, we have
Area = 2 * (5 3/4 * 4 + 5 3/4 * 11 + 4 * 11)
Evaluate
Area = 260.5
Therefore, the surface area of the prism is 260.5 cm².
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Help with math problems
(D) |k - 7| < - 6 has no solution is not a true statement because an absolute value can never be negative, so the inequality has no solution.
What is inequality?Inequality refers to the state of being unequal or not equal in some respect. It can refer to various forms of disparities or differences, such as differences in income, wealth, education, opportunities, health, or social status, among others. Inequality can occur between individuals, groups, communities, or nations, and it can be caused by various factors, such as discrimination, historical legacies, social structures, policies, or economic systems. Inequality is often considered a social problem because it can lead to social tension, unrest, and injustice, as well as undermine economic growth and human development.
(D) |k - 7| < - 6 has no solution is not a true statement because an absolute value can never be negative, so the inequality has no solution.
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Roy has decided to visit the new ice cream shop around the corner. When he goes in, he sees 14 big buckets full of ice cream behind the counter, each containing a different flavor. There are 5 flavors that contain chocolate.
If he closes his eyes and picks out a bucket at random, what is the probability that the flavor he picks will contain chocolate?
A. 2/7
B. 5/14
C. 4/19
D. 3/7
The correct option is B. 5/14, which is equivalent to approximately 0.357 or 35.7%
The probability of selecting a chocolate ice cream bucket is calculated by dividing the number of chocolate ice cream buckets by the total number of buckets:
P(chocolate) = number of chocolate ice cream buckets / total number of buckets
P(chocolate) = 5 / 14
P(chocolate) = 0.35714285714285715
To simplify the fraction, we can express it as a decimal or a percentage:
P(chocolate) ≈ 0.357 or P(chocolate) ≈ 35.7%
Therefore, the probability of selecting a chocolate ice cream bucket is approximately 0.357 or 35.7%. The probability of selecting a chocolate ice cream bucket can be calculated by dividing the number of chocolate ice cream buckets by the total number of buckets. The number of chocolate ice cream buckets is 5, and the total number of buckets is 14. Therefore, the probability of selecting a chocolate ice cream bucket is: 5/14
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Someome help! (identify the solid figures in number order like 1. rectangle 2. square, etc. ) HELP!!!!!
Answer:
1. pyramid
2. cylinder
3. sphere
4. cone
5. cube
6. rectangular prism
7. pyramid
8. sphere
9. cylinder
10. pyramid
11. cube
12. cube
13. cone
14. cylinder
15. sphere
16. cylinder
Step-by-step explanation:
Compare each one to the sample diagrams shown on the top of the paper.
What is the solution to the equation below?
√x-1=x-13
OA. 14
OB. 15
O C. 17
D. 16
The solution for the equation √(x-1) = x - 13 is x = 17, the correct option is C.
How to solve this equation?We have the following equation.
√(x-1) = x - 13
If we apply the square exponent in both sides, we will get:
x - 1 = (x - 13)²
x - 1 = x² - 26x + 169
x² - 27x + 170 = 0
Using the quadratic formula we get:
[tex]x = \frac{27 pm \sqrt{(-27)^2 - 4*170*1} }{2} \\\\x = \frac{27 pm 7}{2}[/tex]
We only care for the positive solution, which is:
x = (27 + 7)/2 = 17
The correct option is C.
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The solution to the given equation is 14 by squaring both sides of the equation and simplifying. Therefore, the solution to the equation is option A.
Explanation:To solve the equation √x-1=x-13, we first square both sides to eliminate the square root.
That results in the equation x - 2*x +1 = x - 13. Simplify this to get -x + 14 = 0. Further simplifying, x = 14 is the solution. Therefore, the solution to the equation is 14 (option A).
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[tex]\sqrt[4]{-81}[/tex]
The fourth root of -81 is not a real number is 3√i.
What is imaginary number?A number that can be represented in the form a + bi is an imaginary number. In this case, a and b are real numbers, while I is the imaginary unit, which is equal to the square root of -1. In mathematics, imaginary numbers are used to expand on the real number system and to describe values that cannot be stated using real numbers.
Complex numbers, which are numbers of the type a + bi, where a and b are real numbers, are one of the principal applications for imaginary numbers. Several mathematical and scientific disciplines, such as electrical engineering, signal processing, and quantum physics, require complex numbers.
The value of -81 can be written as i²(3)⁴.
Taking the fourth root of the number we get 3√.
Hence, the fourth root of -81 is not a real number is 3√i.
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a
3. Woody and Buzz each bought a pink bear for
$50.
• Woody sold his bear for 10% more than the
original price.
• Buzz sold his bear for 30% more than the original
price.
Enter how much more money, in dollars, Buzz
earned for his pink bear than Woody received for his
bear.
Buzz earned $65 - $55 = $10 more than Woody for his pink bear.
How to calculate earnings?
Woody sold his bear for $50 + 10% of $50 = $55.
Buzz sold his bear for $50 + 30% of $50 = $65.
Therefore, Buzz earned $65 - $55 = $10 more than Woody for his pink bear.
To determine how much more money Buzz earned than Woody for their pink bears, we first needed to calculate the selling price for each of them.
We know that both of them bought their bears for $50. Woody sold his bear for 10% more, which means his selling price was $50 + 10% of $50 = $55. Buzz sold his bear for 30% more, which means his selling price was $50 + 30% of $50 = $65. Therefore, Buzz earned $65 - $55 = $10 more than Woody for his pink bear.
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Dividends Per Share Seacrest Company has 25,000 shares of cumulative preferred 2% stock, $50 par and 50,000 shares of $25 par common stock. The following amounts were distributed as dividends: 20Y1 $37,500 20Y2 20,000 20Y3 75,000 Determine the dividends per share for preferred and common stock for each year. Round all answers to two decimal places. If an answer is zero, enter '0'.
I’m stuck I need you to do it
Answer: The length of the prism is 8 yards
Step-by-step explanation:
First, take the volume of the prism, divide it by the width (2 1/2). Once you get that divide that answer by height (5 3/4) getting you the length of the prism (8 yards)
Ron and Jim are making sandwiches for a party. Ron make 2 times as many sandwiches as Jim. Together they make a total of 42 sandwiches.
14 because 14+28=42.
Construct a polynomial function with the following properties: fifth degree, 2 is a zero of multiplicity 4 , −3 is the only other zero, leading coefficient is 2 .
The pοlynοmial functiοn with a fifth degree, 2 as a zerο οf multiplicity 4, −3 as the οnly οther zerο, and a leading cοefficient οf 2 is:
[tex]f(x) = 2(x-2)^4(x+3) = 2x^5 - 32x^4 + 192x^3 - 384x^2 + 216x + 1080[/tex]
What is Polynomial Function?
A pοlynοmial functiοn is a mathematical functiοn οf the fοrm [tex]f(x) = a_n x^n + a_{n-1} x^{n-1} + ... + a_1 x + a_0[/tex], where the coefficients[tex]a_n, a_{n-1}, ..., a_1, a_0[/tex] are constants, x is the variable, and n is a non-negative integer. It is a functiοn that can be graphed as a smοοth curve with nο breaks οr jumps.
If 2 is a zerο οf multiplicity 4, then the pοlynοmial functiοn must have the factοr[tex](x-2)^4[/tex].
If −3 is the οnly οther zerο, then the pοlynοmial functiοn must alsο have the factοr (x+3).
The pοlynοmial functiοn with these properties and a leading cοefficient οf 2 can be written as:
[tex]f(x) = 2(x-2)^4(x+3)[/tex]
Expanding this polynomial gives:
[tex]f(x) = 2x^5 - 32x^4 + 192x^3 - 384x^2 + 216x + 1080[/tex]
Therefore, the polynomial function with a fifth-degree, 2 as a zero of multiplicity 4, −3 as the only other zero, and a leading coefficient of 2 is:
[tex]f(x) = 2(x-2)^4(x+3) = 2x^5 - 32x^4 + 192x^3 - 384x^2 + 216x + 1080[/tex]
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Given the side length a=9 and the angle B=46∘ on the triangle below, find the lengths of b and c and the measure of angle A. Do not round during your calculations, but round your final answers to one decimal place.
well, since all interior angles in a triangle add up to 180°, by definition A = 44°, since B and A are complementary anyway.
[tex]\cos(46^o )=\cfrac{\stackrel{adjacent}{9}}{\underset{hypotenuse}{c}}\implies c=\cfrac{9}{\cos(46^o)}\implies c\approx 13.0 \\\\[-0.35em] ~\dotfill\\\\ \tan(46^o )=\cfrac{\stackrel{opposite}{b}}{\underset{adjacent}{9}}\implies 9\tan(46^o )=b\implies 9.3\approx b[/tex]
Make sure your calculator is in Degree mode.
Solve the problems.
The number a is less than the number b by (1)/(5) of b. By what part of a is b greater than a ?
Answer:
B is greater than A by 1/4 of A
Step-by-step explanation:
Let's use the information given in the problem to write expressions for the values of a and b:
a = b - (1/5)b = (4/5)b
b is greater than a by the difference:
b - a = b - (4/5)b = (1/5)b
To express this difference as a fraction of a, we divide by a:
(b - a)/a = ((1/5)b)/((4/5)b) = 1/4
Therefore, b is greater than a by 1/4 of a.
A point at (-5,7) is reflected across the x-axis. The new point is then reflected across the y-axis. What ordered pair names the third point?explain.
Answer:
Step-by-step explanation:
Reflecting a point across the x-axis negates the y-coordinate, so the point (-5, 7) reflected across the x-axis becomes (-5, -7).
Reflecting a point across the y-axis negates the x-coordinate, so the point (-5, -7) reflected across the y-axis becomes (5, -7).
Therefore, the third point is (5, -7).
Determine the point estimate of the population mean and the margin of error for the given confidence interval. Lower bound: 12 Upper bound: 20
Determine the point estimate of the population mean and the margin of error for the given confidence interval. Lower bound: 12 Upper bound: 20To determine the point estimate of the population mean, we simply take the average of the lower and upper bounds of the confidence interval: Point estimate = (Lower bound + Upper bound) / 2 = (12 + 20) / 2 = 16 Therefore, the point estimate of the population mean is 16. To calculate the margin of error, we need to determine the distance between the point estimate and either the lower or upper bound of the confidence interval. We can do this by subtracting the point estimate from the upper bound (or vice versa): Margin of error = (Upper bound - Point estimate) / 2 = (20 - 16) / 2 = 2 Therefore, the margin of error for this confidence interval is 2.
Answer: its 16 I think
Step-by-step explanation:
Suppose that a cliff diver's height (in feet) after t seconds is given by the model
H(t)=-16t^2+32t+20 find the height after 1.25 seconds pls help me
The height of the cliff diver after 1.25 seconds is 35 feet.
Calculating Height :
The concept used is evaluating a function at a given input or value. In this case, we are evaluating the height function H(t) at t = 1.25 to find the height of the cliff diver after 1.25 seconds. The formula for the height function is given as H(t) = -16t^2 + 32t + 20.
Here we have
A cliff diver's height (in feet) after t seconds is given by the model
H(t)=-16t² +32t +20
Given time t = 1.25 seconds
To find the height after 1.25 seconds, we simply need to evaluate H(1.25) using the given formula:
H(1.25) = -16(1.25)² + 32(1.25) + 20
On Simplifying the expression we get:
H(1.25) = -16(1.5625) + 40 + 20
H(1.25) = -25 + 60
H(1.25) = 35
Therefore,
The height of the cliff diver after 1.25 seconds is 35 feet.
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A company is going to make an oil container in the shape of a cylinder. As shown below, the container will have a height of 7m and a diameter of 8m. The container will be made from steel (including its top and bottom). If the steel costs 29$ for each square meter, how much will the steel cost in total? Use 3.14 for pi, and do not round your answer.
Step-by-step explanation:
Two ends' area = 2 * pi r^2 r is radius = 1/2 diameter = 4m
2 * 3.14 * (4^2) = 100.48 m^2
Sidewall is cicumfernce ( = pi *d) times the height ( =7m)
3.14 * 8 *7=175.84 m^2
Cost = (100.48 +175.84) m^2 * $ 29 /m^2 = $ 8013.28
please help !!
Determine the length of side FE
18
20
21
26
the length of EF is 11 units.
How to solve similar triangles?
Since triangles DEF and GHF are both right triangles, we can use the Pythagorean theorem to find the length of EF.
Let's first find the lengths of DE and EF.
DE = DF + FE = 13 + x, where x is the length of FE.
GF = DE - DG = (13 + x) - 4 = 9 + x.
GH = 4.
Now, using the Pythagorean theorem in triangle GHF, we have:
GH² + HF² = GF²
4²+ HF² = (9 + x)²
16 + HF² = 81 + 18x + x²
And in triangle DEF, we have:
DE²+ EF² = DF²
(13 + x)² + EF² = 13²
169 + 26x + x²+ EF² = 169
Simplifying the above equation, we get:
EF²= -26x - x²
Substituting this into the equation we got from the GHF triangle, we have:
16 + HF² = 81 + 18x + x² - EF²
16 + HF² = 81 + 18x + x²+ 26x + x²
HF² = 97 + 44x + 2x²
Now, using the fact that HE + EF = HF, we have:
8 + x = √(97 + 44x + 2x²)
Squaring both sides and simplifying, we get:
4x² + 16x - 225 = 0
Solving this quadratic equation, we get:
x = (-16 ± √(16² - 44(-225)))/(2*4) = (-16 ± 34)/8
Since x has to be positive, we take the positive solution:
x = 3
Therefore, EF = HE + FE = 8 + 3 = 11.
So the length of EF is 11 units.
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Hall deposited $920 into a savings account. The account earns 8%
interest, compounded annually. What is the balance of his account
after 11 years? Answer in dollars and round to the nearest cent.
The required balance of Hall's account after 11 years is [tex]$A = 2145.1$[/tex].
How to deal with compound interest?The formula to calculate compound interest is:
[tex]$A = P(1 + \frac{r}{n})^{nt}$[/tex]
Where:
A = Final amount
P = Principal amount
r = Annual interest rate (as a decimal)
n = Number of times the interest is compounded per year
t = Time (in years)
Here, P = 920, r = 0.08, n = 1 (compounded annually), and t = 11 years.
Plugging in the values:
[tex]$A = 920(1 + \frac{0.08}{1})^{1\times 11}$[/tex]
[tex]$A = 920(1.08)^{11}$[/tex]
[tex]$A = 2145.1$[/tex]
Therefore, the balance of Hall's account after 11 years is [tex]$A = 2145.1$[/tex].
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help me please
A car was valued at $44,000 in the year 1992. The value depreciated to $15,000 by the year 2006.
A) What was the annual rate of change between 1992 and 2006?
r=---------------Round the rate of decrease to 4 decimal places.
B) What is the correct answer to part A written in percentage form?
r=---------------%
C) Assume that the car value continues to drop by the same percentage. What will the value be in the year 2009 ?
value = $ -----------------Round to the nearest 50 dollars.
(A) the annual rate of change between 1992 and 2006 was 0.0804
(B) r = 0.0804 * 100% = 8.04%
(C) value in 2009 = $11,650
What is the rate of change?
The rate of change is a mathematical concept that measures how much one quantity changes with respect to a change in another quantity. It is the ratio of the change in the output value of a function to the change in the input value of the function. It describes how fast or slow a variable is changing over time or distance.
A) The initial value is $44,000 and the final value is $15,000. The time elapsed is 2006 - 1992 = 14 years.
Using the formula for an annual rate of change (r):
final value = initial value * [tex](1 - r)^t[/tex]
where t is the number of years and r is the annual rate of change expressed as a decimal.
Substituting the given values, we get:
$15,000 = $44,000 * (1 - r)¹⁴
Solving for r, we get:
r = 0.0804
So, the annual rate of change between 1992 and 2006 was 0.0804 or approximately 0.0804.
B) To express the rate of change in percentage form, we need to multiply by 100 and add a percent sign:
r = 0.0804 * 100% = 8.04%
C) Assuming the car value continues to drop by the same percentage, we can use the same formula as before to find the value in the year 2009. The time elapsed from 2006 to 2009 is 3 years.
Substituting the known values, we get:
value in 2009 = $15,000 * (1 - 0.0804)³
value in 2009 = $11,628.40
Rounding to the nearest $50, we get:
value in 2009 = $11,650
Hence, (A) the annual rate of change between 1992 and 2006 was 0.0804
(B) r = 0.0804 * 100% = 8.04%
(C) value in 2009 = $11,650
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find the minors of the matrix A 1*3
Answer:
A 1x3 matrix only has one entry, so there is only one minor, which is the determinant of the matrix itself.
For example, if A = [a, b, c], then the minor of A is simply:
|A| = det(A) = a
Since the determinant of a 1x1 matrix is just its single entry.
Step-by-step explanation:
Choose the list that shows the investment with the least risk to the one with the highest risk.
A. Mutual Funds, Savings Bonds, Stock Market
B. Savings Bonds, Mutual Funds, Stock Market
C. Savings Bonds, Stock Market, Mutual Funds
D. Stock Market, Mutual Funds, Savings Bonds
The best choice is B. Saving Bonds, Stock Market, Mutual
Why do you use the word "investment"?Investments are defined as assets bought or invested in with the goal of increasing wealth and setting aside funds from salary or capital gains. The main goal of an investment is to generate extra income or to make money on an investment over a certain amount of time.
Generally speaking, the following is the order of investments from the lowest risk to the greatest risk:
Bonds for savings, mutual funds, and the stock market
As a result, list B is the one that runs from investment with the lowest risk to investment with the greatest risk. Stock market, mutual funds, and savings bonds.
The sequence of mutual fund investments, Savings Bonds, and Stock Market in Option A is not in decreasing order of danger.
Savings Bonds, the stock market, and mutual funds are listed in Option C's order, and this is also not from lowest to greatest risk.
Stock markets, mutual funds, and savings bonds are listed in Option D's order of greatest to lowest risk.
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suppose a charity received a donation of 15.2 million. if this represents 56% of the charity's donation funds, what is the total amount of it's donated funds? round answer to nearest million dollars
Answer:
27 million dollars
Step-by-step explanation:
Let x be the total amount of the charity's donated funds. We know that the donation of 15.2 million represents 56% of x.
We can set up the following equation to solve for x:
15.2 million = 0.56x
Dividing both sides by 0.56, we get:
x = 15.2 million / 0.56 = 27.14 million
Therefore, the total amount of the charity's donated funds is approximately 27 million dollars.
Answer:
27 million
Step-by-step explanation:
create the equation
[tex]\frac{15200000}{x} =\frac{56}{100}[/tex], where x is equivalent to the total amount of donation funds
solve the equation by cross multiplying
[tex]x=2714285 \frac{5}{7}[/tex],
this can be simplified to 27 million
In Exploration 5.3.2 Question 3, you found multiple average rates of change with different intervals and discussed in Question 6, the limiting value that your average rates are approaching. In Question 7, what was the significance of the numerical sign of the limiting value you found in 6?
The numerical sign of the limiting value is significant because it indicates the general direction of the function's behavior (increasing or decreasing) within the given interval,
Hi there! In Exploration 5.3.2, Question 3 required finding multiple average rates of change for different intervals, and in Question 6, you discussed the limiting value that those average rates are approaching. The significance of the numerical sign of the limiting value found in Question 6, addressed in Question 7, is as follows:
The sign of the limiting value (positive or negative) indicates the general direction of the function's behavior during the given interval. A positive limiting value means that the function is generally increasing, while a negative limiting value suggests that the function is generally decreasing.
Understanding the sign of the limiting value is essential as it provides insight into the overall trend of the function in the specified range. This information can be useful in various applications, including predicting future behavior and identifying potential maximum or minimum points of the function.
In summary, providing valuable information about the function's characteristics and trends.
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A company makes steel rods shaped like cylinders. Each rod has a diameter of 6 centimeters and a height of 20 centimeters. If the company used 30520.8cm3 of steel, how many rods did it make?
As a result, the company produced number of rods are **56** rods.
What exactly is radius?
A radius is a section of a straight line in geometry that connects a circle's or sphere's center to its edge or surface Its length is divided by the circle's diameter by two.
Each rod has a diameter of 6 centimeters, hence the radius is 3 centimeters. Each rod has a 20-centimeter height.
The following formula can be used to determine a cylinder's volume:
V = πr²h
where V stands for volume, r for radius, which is equal to half of the diameter, and h for height.
Adding these values to the formula yields the following results:
V = π(3)²(20) (20)
V = 180π
The volume of each rod is therefore 180 cubic centimeters.
30520.8 cubic centimeters of steel were used to make how many rods?
To find out,
divide the total volume of steel by the volume of each rod:
30520.8 / (180π) ≈ **56** rods
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On your graph paper, plot points A(-5, -2), B(-3, -2), and D(-5, -4). Mark point C to make a square in the third quadrant. Name the coordinate rule that will rotate the rectangle to the fourth quadrant, with vertex C’ at point (4, -3).
After plotting the points A (-5, -2), B (-3, -2), and D (-5, -4) in the 4th quadrant as shown in the attached graph, we can see that to make the square we have to plot point C, at (-3, -4).
Define graphs?Simply said, the graph is a structured representation of the data. Because of this, it is simpler for us to understand the facts. Data is the term used to describe the numerical information obtained through observation.
The word data is derived from the Latin word datum, which meaning "something delivered."
After developing a research question, data are progressively obtained through observation. The information is then organised, categorised, and visually shown.
Here in the question,
After plotting the points A (-5, -2), B (-3, -2), and D (-5, -4) in the 4th quadrant as shown in the attached graph, we can see that to make the square we have to plot point C, at (-3, -4).
And the coordinate rule that will rotate the rectangle to the fourth quadrant, with vertex C’ at point (4, -3) is known as reflection.
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(2x^3 -3x^2 +4x -1) /(x+2)
Quotient ➔ 2x² - 7x + 18
Remainder ➔ - 37
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SolutioN ::
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➸ Attachment[tex]\begin{gathered} \\ \\ \qquad{\rule{120pt}{7pt}} \\ \\ \end{gathered}[/tex]
VerificatioN ::
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➸ Taking the product of Divisor and Quotient as LHS[tex]\begin{gathered} \\ \\ \; \; :\longmapsto \; \sf {x(2x^{2} - 7x + 18) + 2(2x^{2} - 7x + 18) + ( - 37)} \\ \\ \end{gathered}[/tex]
[tex]\begin{gathered} \\ \; \; :\longmapsto \; \sf {2x^{3} - 7x^{2} + 18x + 4x^{2} - 14x + 36 - 37} \\ \\ \end{gathered}[/tex]
[tex]\begin{gathered} \\ \; \; :\longmapsto \; \sf {2x^{3} - 7x^{2} + 4x^{2} + 18x - 14x - 1} \\ \\ \end{gathered}[/tex]
[tex]\begin{gathered} \\ \; \; :\longmapsto \; \sf \pink{2x^{3} - 3x^{2} + 4x - 1} \\ \\ \end{gathered}[/tex]
➸ Taking Dividend as RHS[tex]\begin{gathered} \\ \\ \; \; :\longmapsto \; \sf \pink{2x^{3} - 3x^{2} + 4x - 1} \\ \\ \end{gathered}[/tex]
[tex]\begin{gathered} \\ \; \; :\longmapsto \; \sf {LHS = RHS} \\ \\ \end{gathered}[/tex]
[tex]\begin{gathered} \\ \; \; :\longmapsto \; \underline{\boxed{\sf{Verified}}} \; \pmb{\red{\bigstar}} \\ \\ \end{gathered}[/tex]
[tex]\begin{gathered} \\ {\underline{\rule{150pt}{10pt}}} \end{gathered}[/tex]
[tex]\blue{\huge {\mathrm{DIVIDING \; POLYNOMIALS}}}[/tex]
[tex]\\[/tex]
[tex]{===========================================}[/tex]
[tex]{\underline{\huge \mathbb{Q} {\large \mathrm {UESTION : }}}}[/tex]
[tex]\sf \dfrac{(2x^3 -3x^2 +4x -1)}{(x+2)}[/tex][tex]{===========================================}[/tex]
[tex] {\underline{\huge \mathbb{A} {\large \mathrm {NSWER : }}}} [/tex]
Through the computations performed, we came to the conclusion that the quotient is [tex]\blue{\bold{2x^2 - 7x + 18}}[/tex] and the remainder is [tex]\red{\bold{-37}}[/tex].[tex]{===========================================}[/tex]
[tex]{\underline{\huge \mathbb{S} {\large \mathrm {OLUTION : }}}}[/tex]
[tex]\qquad\begin{aligned}\sf \blue{2x^2 - 7x + 18} \:\:\:\:\:\:\:\:\:\: &\\\sf x + 2 \: \: ) \overline{2x^3 - 3x^2+4x-1} \quad&\\\sf \: \: \underline{ - 2x^3 - 4x^2 \qquad\qquad \: \: \: \: } \\\sf - 7x^2 + 4x \qquad \: \: \: \\\sf \:\:\: \underline{ - 7x^2 + 14x \qquad \: } \\ \sf 18x - 1 \: \: \: \\ \underline{ \sf{ - 18x - 36 \: }} \\ \sf \red{ - 37} \end{aligned}[/tex]
[tex]{===========================================}[/tex]
[tex]- \large\sf\copyright \: \large\tt{AriesLaveau}\large\qquad\qquad\qquad\qquad\qquad\qquad\tt 04/02/2023[/tex]
A soccer team is planning to sell candy bars to spectators at their games. They will buy two-pound bags of candy. The number of candy bars per bag has mean 12 and standard deviation 2. They will sell each candy bar for $1.25. (Assume that all of the candy in a bag will be sold.)
1. What is the expected value and the standard deviation for the amount of money that would be made selling all of the candy in one bag of candy?
The expected value for the amount of money made selling all of the candy in one bag is $15, and the standard deviation is approximately $24.33.
What exactly is a standard deviation?The standard deviation is a measurement of how widely apart a set of numbers or statistics are from their mean.
The expected value for the amount of money made selling all of the candy in one bag can be found by;
Expected value = mean number of candy bars per bag x price per candy bar
Expected value = 12 x $1.25 = $15
Formula for the standard deviation of a product of random variables:
[tex]SD (XY) = \sqrt{((SD(X)^2)(E(Y^2)) + (SD(Y)^2)(E(X^2)) + 2(Cov(X,Y))(E(X))(E(Y)))}[/tex]
where X and Y are random variables, SD is the standard deviation, and Cov is the covariance.
X is the number of candy bars in a bag, which has a mean of 12 and a standard deviation of 2. Y is the price per candy bar, which is a constant $1.25. So we have:
E(Y²) = $1.25² = $1.5625
E(X²) = (SD(X)²) + (E(X)²) = 2² + 12² = 148
Cov (X,Y) = 0 (because X and Y are independent)
Using these values, we can calculate the standard deviation for the amount of money made selling all of the candy in one bag:
[tex]SD = sqrt((2^{2} )(148) + (0)(12)(1.25)^{2} + 2(0)(2)(12)(1.25))[/tex]
SD = √(592)
SD ≈ $24.33
Therefore, the expected value for the amount of money made selling all of the candy in one bag is $15, and the standard deviation is approximately $24.33.
To know more about standard deviation, visit:
https://brainly.com/question/475676
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