Select the correct answer,
Annette wants to find out which of two toothpaste brands people living in the town of Springville prefer, brand A or brand B. She uses a random
sample to make this generalization: 60% of the population of Springville prefers brand A over brand B. For which random sample would this
generalization be valid?
OA. every third person who walks into one of the neighborhood convenience stores, which stocks several toothpaste brands
OB. every fourth student who attends Annette's school in Springville
OC. every other customer at all the convenience stores in Springville that stock both brand A and brand B
OD. every mother who shops at a convenience store in Springville
Reset
Next

Answers

Answer 1

Answer:

C.)

Step-by-step explanation:

every other customer at all the convenience stores in Springville that stock both brand A and brand B


Related Questions

Can somebody help me? I need help ;-;...

Answers

Answer:

Bottom left

Step-by-step explanation:

Dots are on the inside and outside of the line as well as being on the line

Expand (2+x)^3 using binomial theorem​

Answers

Step-by-step explanation:

= 2³ + x ³ + 3(2)²x + 3(2)x²

= 8 + x³ + 12x + 6x²

= x³ + 6 x² + 12 x + 8

what is 10(x-2)-(x-4)

Answers

Hopes this helps:

Answer: 9x - 16

1. Remove parentheses.
10(x - 2) - x + 4

2. Expand by distributing terms.
10x - 20 - x + 4

3. Collect like terms.
(10x - x) + (-20 + 4)

4. Simplify.
9x - 16

The final task is a bit more difficult. The bookshelf consists of two cubes and each cube has a side of (1/2). This is a fractional base, so the expression for both cubes looks like this: (1/2)^3 x 2. Calculate the volume of the bookshelf to complete your training!​

Answers

Answer:

1/4

Step-by-step explanation:

I think that the expression is correct

(1/2)^3 x 2 = 1/8 x 2 = 1/4

I want a expert or someone that can tell me this %100 I’m offering a brainalist + 20 points

Answers

Answer:

The answer is A

Step-by-step explanation:

Supplementary angles are angles which add up to 180°

∠1 and ∠3 add up to 180°, so they are supplementary.

The answer is A. Supplementary angles add up to 180 and are a straight line

You invest $2,000 in an investment that pays an annual interest rate of 7.5% with monthly compounding. How many months will it take for your investment to be worth $3,500

Answers

Answer:

10 years

step-by-step explanation:

First, divide 7.5 by 100, you should get 0.075, then multiply 0.075 by 2000, you should get 150, thats  how much interest he gains each year, now subtract 2000 from 3500 to see how much he needs to get to 3500, you should get 1500, now divide 1500 by 150, you should get 10, which is how many years he will need to get to 3500 from 2000  

which is a true statement about 10 days of production

Answers

Answer:

At 10 days, no line is above the '0' means no one is producing widgets at 10 days point. Since the y axis represents number of widgets produced, this means none of the plants have produced more than 0 widgets yet.

A deck of cards contains RED cards numbered 1,2,3,4,5 and BLUE cards numbered 1,2. Let R be the event of drawing a red card, B the event of drawing a blue card, E the event of drawing an even numbered card, and O the event of drawing an odd card. Drawing the Red 1 is one outcome of which of the following events? Select all correct answers.

Answers

Answer:

R+O(I think)

Step-by-step explanation:

The odds of drawing that particular card is 1/7. The odds of drawing a red card are 5/7 and a blue card, 2/7. (This is just my answer)

Answer:

Red 1

B OR O

R AND O

Red 3

B OR O

B'

E'

Red 5

E'

R OR E

R AND O

Step-by-step explanation:

25 3/2 in radical form

Answers

Exact Form:

25^3

Decimal Form:
125

Together, Dien and Jane can eat 2/3 of a pizza in 4 seconds. How long would it take each of them to eat the whole pizza alone if Jane can eat a pizza 5 seconds faster than Dien?

Answers

Answer:

Dien - 15 seconds, Jane - 10 seconds

Step-by-step explanation:

Together:

2/3 of pizza ⇒ 4 secondsFull pizza ⇒ 4 ÷ 2/3 = 6 seconds

Dien needs  x seconds to eat pizza

Jane needs  x - 5 seconds to eat pizza

In one second, Dien can eat 1/x, Jane can eat 1/(x - 5), together 1/6 of a pizza

1/x + 1/(x - 5) = 1/6x(x - 5) = 6(x + x - 5)x² - 5x - 12x + 30 = 0x² - 17x + 30 = 0(x - 15)(x - 2) = 0x = 15 (x = 2 is discounted as not realistic)

Dien can eat a pizza in 15 seconds, Jane can eat a pizza in 10 seconds

Determine whether the situation calls for a survey, an observational study, or an experiment. You want to find out if a new drug can help decrease the symptoms of migraine headaches.
experiment
observational study
survey
observational study is the wrong answer

Answers

Answer:

Experiment.

Step-by-step explanation:

It helps you determine the effect of the medication in a controlled environment with variables and controls.

I need help what the value of x and adjacent or vertical?

Answers

Answer:

74 degrees

The angles are adjacent, since they have a common side (adjacent basically means right next to each other).

Step-by-step explanation:

180 - 106 = 74

Both angles are supplementary, since they add up to 180 (make a straight line together).

Please help me.

1. Reflect triangle PQR over the y-axis. Then, describe what happened to each of the coordinates.

2. Reflect your new triangle P’Q’R over the x-axis. Describe what happened to each of the coordinates

Answers

Answer:

make dot in the 2,2 8,2 and 5,7 and join the dots

Math help!

Please only answer if you know the answer, the comment section is right below. Please don't waste my points!

Also, please show all of your work, you are trying to help me better understand the concept, not just give me the answer.

The image is down below. Show work! Thanks!

Answers

Answer: 1675 Ft. = Distance from

fire to the windmill.

Step-by-step explanation:

tan8 = 140/X1.

X1 = 140/tan8 = 996.2 Ft.

tan3 = 140/(996+X2)

996+X2 = 140/tan3 = 2671

X2 = 2671-996 = 1675 Ft. = Distance from

fire to windmill.

HELP ME I BEED THIS DONE!

Answers

2 and 5 are the x intercepts the axis of symmetry is the highest point aka the top of the function and go straight down!

need help geometry question central angles and arcs !!! PLS HELP

Answers

Answer:

150°

Step-by-step explanation:

35 + 120 + 55 = 210

360 - 210 = 150

what is the value of x? ​

Answers

Step-by-step explanation:

Continuation of the answer

4x=180 degrees

X=180/4=45 degrees.

HELP PLS!! according to the rational root theorem, -2/5 is a potential rational root of which function?

Answers

Answer:

hi

Step-by-step explanation:

According to the Rational Roots Theorem, the possible rational roots are all the factors of the constant term expressed over the factors of the leading coefficient of the polynomial function. The reason is that the numerator of this rational root is a factor of 4 and the denominator is a factor of 25.

DOES IT HELP?!

Answer: D

Step-by-step explanation: Got it right

please help me with math :):

(more than one answer)

Which number(s) are 3 units from zero on a number line?

1. 6
2. 3
3. 1\3
4. -3

what’s the answer's (more than one) 1,2,3,or 4?

Answers

Answer:      2. 3 and 4. -3

Step-by-step explanation:

It’s number 2 and number 4

If an object is projected upward with an initial velocity of 125 ft per sec, its height h after t seconds is h= - 16t+ 125t. Find the height of the object after 2 seconds.​

Answers

Answer:

h(t) = -16t^2+125t

We need to find h(t) when t = 4 s:

h(4) = -16*4^2+125*4

h(4) = 244 ft

The height of the object after 4 seconds is 244 feet.

jim began to bike a 173 mile bicycle trip to build up stamina for a for a triathlete competition.​ Unfortunately, his bicycle chain​ broke, so he finished the trip walking. The whole trip took 5 hours. If Jim walks at a rate of 4 miles per hour and rides at the rate of 38 miles per hour , find the amount of time he spent on the bicycle

Answers

Answer

3.5 hours

Step-by-step explanation:

Let us represent

The time spent walking as x

The time spent riding as y

Jim began a 146​-mile bicycle trip to build up stamina for a triathlete competition.​ Unfortunately, his bicycle chain​ broke, so he finished the trip walking. The whole trip took 5 hours.

Hence:

x + y = 5.... Equation 1

x = 5 - y

If Jim walks at a rate of 4 miles per hour and rides at 40 miles per​ hour,

The formula for Distance = Speed × time. Hence,

4 × x + 40 × y = 146 miles

4x + 40y = 146.... Equation 2

We substitute 5 - y for x in Equation 2

4(5 - y) + 40y = 146

20 - 4y + 40y = 146

Subtract 20 from both sides

20 - 20 - 4y + 40y = 146 - 20

- 4y + 40y = 146 - 20

36y = 126

y = 126/36

y = 3.5 hours

Since the time he spent raiding his bicycle is represented by "y", the amount of time he spent on the bicycle is 3.5 hours      

I think this is right I had this question I think it was the same one I dont know tho

What value of a satisfies the following equation?

-2(a + 3) = -4a + 32

Answers

Answer:

a = 19

Step-by-step explanation:

-2(a + 3) = -4a + 32

-2a - 6 = -4a +32

+2a        +2a      

-6 = -2a + 32

-32         -32

-38 = -2a

divide by -2

a = 19

Answer:

a=19

Step-by-step explanation:

-2(a+3) = -4a + 32

-2a - 6 = -4a + 32(Group like terms)

-2a+4a=32+6

2a=38(Divide both sides by 2)

a=19

How do you find out if a number is an integer or not?

Answers

Answer:

Integers are any whole number negative or positive

Step-by-step explanation:

HELP PLEASE ILL MARK BRAINLIEST

A rectangular prism has a volume of 300 cubic inches. The base measures 15 inches and the height is 5 inches. What is the width?

Answers

Answer:

width = 4

Step-by-step explanation:

Use the formula for finding width, and plug in the numbers

w = V/h*l

w = 300/(5*15)

Simplify.

w = 300/(5*15)

w = 4

A company found that the average customer rating of
a certain product can be used to estimate the total
income from that product, according to the equation
y= 44x+500, where y is the income,in dollars, and x is
the average customer rating. Which of the following
best describes the slope of the graph of the equation
in the xy-plane?
A) For every increase of 44 in the average customer rating,
the estimated increase in income is $500.
B) For every increase of 1 in the average customer rating,
the estimated increase in income is $544.
C) For every increase of 1 in the average customer rating,
the estimated increase in income is $500.
D) For every increase of 1 in the average customer rating,
the estimated increase in income is $44.

Answers

The option that best describes the slope of the graph of the equation in the xy-plane is: D) For every increase of 1 in the average customer rating, the estimated increase in income is $44.

The equation y = 44x + 500 represents the relationship between the average customer rating (x) and the estimated income (y) of a certain product. The coefficient of x, which is 44, determines the slope of the graph. In this case, it means that for every increase of 1 in the average customer rating, the estimated increase in income is $44. Therefore, option D is the correct answer. Option A is incorrect because it suggests a fixed increase of $500 for every increase of 44 in the rating, which is not accurate. Option B is also incorrect as it implies a higher increase in income than what the equation represents. Option C is incorrect because it overestimates the increase in income without considering the coefficient of x.

For more questions on increase in income:

https://brainly.com/question/15043225

#SPJ8

you invested money in two funds. last year, the first fund paid a dividend of 9% and the second a dividend of 3%, and you receive a total of $921. This year, the first fund paid a 10% dividend and the second only 1%, and you received a total of $846. How much money did you invest in each fund?​

Answers

Answer:

x= $ 7100 investment in first fund

10x+y=84600 substitute the value of x

10*7100+y=84600

y=84600-71000

y= $ 13600 investment in second fund.

Step-by-step explanation:

Scores of an IQ test have a​ bell-shaped distribution with a mean of and a standard deviation of . Use the empirical rule to determine the following. ​(a) What percentage of people has an IQ score between and ​? ​(b) What percentage of people has an IQ score less than or greater than ​? ​(c) What percentage of people has an IQ score greater than ​?

Answers

Complete question is;

Scores of an IQ test have a​ bell-shaped distribution with a mean of 100 and a standard deviation of 13. Use the empirical rule to determine the following.

​(a) What percentage of people has an IQ score between 87 and 113​?

​(b) What percentage of people has an IQ score less than 74 or greater than 126​? ​

(c) What percentage of people has an IQ score greater than 139​?

Answer:

A) 68% of the people had an IQ score between 87 and 113

B) 5% of the people had IQ scores less than 74 and greater than 126.

C) 0.15% had an IQ score greater than 139

Step-by-step explanation:

We are given;

Mean; x¯ = 100

Standard deviation; σ = 13

According to the empirical rule in statistics;

>> 68% of the data lies within one standard deviation of the mean

>> 95% of the data lies within two standard deviations of the mean

>> 99.7% of the data lies within three standard deviations

A) We want to find the percentage of people with an IQ score between 87 and 113.

Within one standard deviation, we have;

x¯ ± σ

>> (100 - 13), (100 + 13)

>> (87, 113) which is the range we are looking for.

Thus, 68% of the people had an IQ score between 87 and 113

B) we want to find percentage of people has an IQ score less than 74 or greater than 126.

Let's first find those who had between 74 and 126.

Let's use two standard deviations within the mean.

x¯ ± 2σ

>> (100 - (2×13)), (100 + (2×13))

>> (74, 126) which is the range we are looking for.

So percentage that have IQ scores between 74 and 126 is 95%

Thus;

Percentage of those who had less than 74 and greater than 126 is;

P = 1 - 95%

P = 5%

C) we want to find the percentage of people that had an IQ score greater than 139.

Let's use the z-score formula;

z = (x¯ - μ)/σ

z = (139 - 100)/13

z = 39/13

z = 3

This means it is 3 standard deviations above the mean.

Thus;

Since it's one side outside the mean, then;

Percentage of people with an IQ score greater than 139 = (1 - 99.7%)/2 = 0.3%/2 = 0.15%

what is 100 times the value 15 thousandths

Answers

Answer:

Step-by-step explanation:

[tex]\frac{15}{1000} \times 100=1.5[/tex]

What is the acceleration of a 4.5 kg mass when there is a net force of 18 N on
it? Please show me the equation if you know.

Answers

Answer:

Step-by-step explanation:

a=F/m

a=18/4.5

a=4 m/s/s

hope this helped! :D

HELP PLEASE DO NOT PUT A LINK

Answers

Answer:

No

No

Yes

Yes

No

Step-by-step explanation:

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