Mathematics High School

Olivia wants to know the proportion of students at her school who use a

certain social media app. She interviews a random sample of students at

her school. She finds that 30% of the students in the sample use the app.

What conclusion can she draw from the sample?

А

It is likely that about 30% of the students at her school use the app.

B Exactly 30% of the students at her school use the app.

Every random sample would find that 30% of the students use

the app

It is likely that 30% of the students at her school were selected for

the sample.

Answers

Answer 1

Answer:

A

Step-by-step explanation:

Random sampling is a sampling method where each sample has an equal chance of being chosen. The random sample chosen is meant to be an unbiased representation of the population.

If 30% of the sample uses the app, it means that 30% of the population are likely to use the app

Related Questions

Ming and Daniel are selling cheese cakes for a school fundraiser. Customers can buy French silk cheesecakes and apple cheesecakes. Ming sold 6 French silk cheesecakes and 3 apple cheesecakes for a total of $114. Daniel sold 4 French silk cheesecakes and 5 apple cheesecakes for a total of $124. Find the cost of each of one French silk cheesecakes and one apple cheesecake.

Answers

Ming sold 6 French silk cheesecakes for $114 so you do 114/6 for the individual price, and same for the apple cheesecakes Daniel sold, 124/5.

French Silk Cheesecake: $19
Apple Cheesecake: $24.80

If the measure of angle B is 67 degrees, what is the measure of angle C?

Answers

Answer:

what shape is it? for example a triangle etc

Hey MyBoyz you’ve been on my mind!

Answers

Answer:

really

Step-by-step explanation:

The speed limit on a highway is 70 miles per hour. About how fast is this in miles per minute
PLEASE SOON!!

Answers

Answer:

In the case of 70 mph, time would be 105/70 or 1.5 hours (90 minutes).

The sales tax rate is 1/2%. What is the sales tax rate on a 164.00$ purchase?

Answers

Answer:

82

Step-by-step explanation:

At these numbers functions: (1, 2), (2, 3), (3, 4), (4, 3)

Answers

Answer:

(Add one then subtract one)

Step-by-step explanation:

write a missing-factor equation. 7 people went to dinner. The total
bill was $42. How much did
each person pay if the bill was
shared equally?

Answers

Answer:

If everyone contributed to the bill, everyone would have had to pay 6 dollars each.

Step-by-step explanation:

You take 42, divide it by 7 to get 6.

Liam invested $1,200 in an account paying an interest rate of 8,75% % compounded monthly. Camila invested $1,200 in an
account paying an interest rate of 9.25% % compounded continuously. After 16 years, how much more money would Camila
have in his account than Liam, to the nearest dollar?

Answers

2102.53 welcome hope that help

Find the zeros of 6x^2-27x

Answers

Answer:

x = 0, 9/2

Step-by-step explanation:

6x^2 - 27x = 0 (original)

3x(2x - 9) = 0 (factor out GCF of 3x)

|

v

(solve each factor (3x and 2x - 9) for x)

3x = 0

x = 0

2x - 9 = 0

2x = 9

x = 9/2

x=9/2 is correct how wisdom said

Today, everything at a store is on sale. The store offers a 40% discount. The discount price of a hat is $22. What is the regular price?​

Answers

Answer:

$30.80

Step-by-step explanation:

$22 x 40% = $8.80

$22 + $8.80 = $30.80

ehh

There are 12 girls and 18 boys in a class. What is the largest number of groups they can be split into and have the same number of boys and girls on each team?

Answers

12 cause that is the max amount of girls and there is no other way to get the groups even if you go over.

side BC is parallel to side DE.
What is the length of side AB?
A. 34
B. 42
C. 44
D. 63

Answers

Answer:34

Step-by-step explanation:

I took the test :)

Which exponential expression is equivalent to the one below? -------> (16*(-40))^15
A. (16) * (-40)^15
B.(16)^15 * (-40)^15
C. (16)^15 + (-40)^15
D. 15 * (16 * (-40))
I give brainleist

Answers

Answer:

5/8 is found between Answer B on a number line

Step-by-step explanation:

Answer:

B.(16)^15 * (-40)^15

Step-by-step explanation:

Use property:

(a*b)^c = (a)^c*(b)^c

Given expression:

(16*(-40))^15 = (16)^15 *(-40)^15

Matching option is B

If a square shaped napkin had a side length of 9 inches what is the area of the Napkin?

Answers

Answer:

81

Step-by-step explanation:

its square shaped so that means all sides are equal and to find the area its length * width and if all sides are 9 then 9*9 = 81

find rotational symmetry
sorry about the cringy drawing but y'all get the idea right​

Answers

Step-by-step explanation:

The rotational symmetry is 4

Answer:

Rotational symmetry is 4 and symmetry is 4

1) From 30 inches to 24 inches. What is the percent of change? A. Increase 20% B. Decrease 25% C. Increase 20% D. Decrease 20%​

Answers

Answer:

either d or b???

It’s clearly a decrease, since it goes form a higher number (30) to a lower one (24).
30-24 = 6
6/30 = x/100
Work:
6 x 100 = 600
600/30 = 20

So there’s a 20% decrease.

what is the answer for this

Answers

i believe is a. (-x, y)

Sample Response: To find the image after a reflection over the x-axis, I would negate the y-coordinate. To find the image after a reflection over the y-axis, I would negate the x-coordinate. So, reflecting the point (5, 2) over the x- and y-axis, I would get (–5, –2).

Which did you include in your response? Check all that apply.
Negate the y-coordinate.
Negate the x-coordinate.
Get the point (–5, –2).

Answers

Answer:

egg

Step-by-step explanation:

eggs are BlUe

Answer:

select all of them bc there all correct

Step-by-step explanation:

PLEASE I NEED THIS TODAY!!!!

Answers

Answer:

1/64 c

Step-by-step explanation:

.

Plz help me I will give you brainliest and 10 points

Answers

Answer:

0.08522

Step-by-step explanation:

how do you figure out what the y=mx+b of a equation

Answers

Answer:

y is your answer

m is your rise/run

x is there for x

and b is your negative or positive y-intercept

Step-by-step explanation:

It’s Y hopefully this helps you!!

Someone plz help me

Answers

Answer:

1.benchmark fractions

2. equivalent fractions

Step-by-step explanation:

Hope it helps!

Answer:

1.) Benchmark fraction

2.)  Equivalent fractions

Step-by-step explanation:

Hope this helped!

Write the following least to greastest

8.75

5.75

Answers

Answer:

the last on is least and the first one is the greastest

Step-by-step explanation:

Answer:

8.75 is greater and 5.75 is less

Step-by-step explanation:

Simplify the expression: 5-−3ℎ −(6-+7ℎ)
a) 11-−4ℎ
b) 11-−10ℎ
c) −-−4ℎ
d) −-−10ℎ

Answers

Answer:

D

Step-by-step explanation:

what is a formula for the nth term of the given sequence? -7, -12, -17...

Answers

22 should be the answer because it’s deducting 5 each time

There are 635,000 residents in Jones County and 12.8% are under the age of 5. Approximately how many residents are under the age of 5?​

Answers

Answer: 81280

Step-by-step explanation:

From the question, we are informed that there are 635,000 residents in Jones County and 12.8% are under the age of 5.

The number of residents that are under the age of 5 will be calculated as:

= 12.8% × 635000

= 0.128 × 635000

= 81280

The sum of two consecutive odd integers is 144. Which expression may be used to solve the problem?

Answers

Answer:

smaller no.=x

larger=x+2

x+x+2-144

2x+2-144

2x=142

X=71

Smaller=71

Larger=71+2=73

Help - sorry it’s blurry I couldn’t fix it

Answers

When we choose to do cosine we do adjacent/hypotenuse so it would be...

Cos(32)= x/23

Than solve for x

X= 19.18 o 19.2

The price of gas was $2.49 last month. This month, gas costs $2.79. What is
the percent increase?

Answers

2.79 - 2.49 = .30

then divide the amount increased by the original number and multiply by 100

.3 / 2.49 x 100 = 12%

Answer:

12%

Step-by-step explanation:

2.79 - 2.49 = $0.30

0.30 / 2.49 = 0.12 = 12% (decimal changes to percent)

You can check your work by doing original cost times the decimal of the percent increase. $2.49 * 0.12 = $0.30. Add this to original -> 0.30 + 2.49 = $2.79.  

If a line passes through (6,4) and (12,7), what is the slope? I really need help and if you can please explain how you got the asnwer

Answers

Answer:

0.5 OR 1/2

Step-by-step explanation:

Since the two points are (6,4) and (12,7) you would find the distance in x and y.

Slope = change in y/ change in x

Change in y: the y coordinates are 4 and 7, so 4 + 3 = 7. +3 is the change.

Change in x: the x coordinates are 6 and 12, so 6 + 6 = 12. +6 is the change.

Slope = 3/6 = 1/2 = 0.5 = 50%

Hope this helps :D

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