Mathematics High School

Select the correct answer. A school administrator wants to know the average age of the 25,000 kindergarteners in her state at the beginning of the school year. She randomly selects 1,000 kindergarteners in the state, assuring that the group accurately represents all kindergarteners in the state, and finds the average age to be 5 years 10 months. What assumption can she make regarding the approximate average age of all kindergarteners in the state? A. The approximate average age of kindergarteners in the state is less than 5 years 10 months. B. The approximate average age of kindergarteners in the state is 5 years 10 months. C. The approximate average age of kindergarteners in the state is greater than 5 years 10 months. D. No assumptions can be made regarding the average age of kindergarteners in the state because the sample is biased.

Answers

Answer 1

Answer:

The approximate average age of kindergarteners in the state is 5 years 10 months.

Step-by-step explanation:

Answer 2

The assumption that the school administrator can make is as follows:

B. The approximate average age of kindergarteners in the state is 5 years 10 months.

What is an assumption?

An assumption is a statement that declares the existence of the relationship between two or more variables.

Using a sample as the school administrator did can help an assumption to be proved practically.

Thus, the assumption that the school administrator can make regarding the approximate average age of all kindergarteners in the state is Option B.

Learn more about assumptions and theories at https://brainly.com/question/14700846

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Plz help, I am so confusedd

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What’s the question, I’ll try to help you :))

Someone please help me I’ll give out brainliest please don’t answer if you don’t know

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Answer:

-2x

Step-by-step explanation:

-x + 1 - (1 + x)

-x + 1 -1 -x

-2x

3x + 4. What is the constant term?

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Answer: 4

Step-by-step explanation:

3x will change as a result of the x value but 4 stays the number 4

Tom had 1/2 of a box of crackle crunchy candy he ate 3/4 of it what portion of the box of candy was left pls help me ty

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Answer:

1/8 remained

Step-by-step explanation:

1/2 × 3/4 = 3/8

he ate 3/8 out of 4/8 so 1/8 remained

Given the following triangle, find c.

Answers

9514 1404 393

Answer:

c = 3√34 ≈ 17.493

Step-by-step explanation:

The Pythagorean theorem tells you ...

c² = 15² +9²

c² = 225 +81 = 306

c = √306

c = 3√34 ≈ 17.493

What is the speed, in miles per hour, of an object traveling at 66 feet per second?

Answers

Answer:

0.75 miles cause 66x60 = 3960 and there are 5280 feet in a mile so 3960 divided by 5280= 0.75

Step-by-step explanation:

Evaluate the log
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Answers

i’ve decided to do this on paper. hope it helps.

The table shows the height of several buildings in Chicago. Use the table to determine whether the height of the building is a linear function of the number of stories.
Stories Height (ft)
Harris Bank III: 35 510
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Answers

Answer:

no (mark brainlest plz)

Step-by-step explanation:

because North tower dips down when its the highest. Its also not linear because it +5 then +30 all the sudden

If y = 3x and 4x - 2y = 5, then x =

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Answer:

-2.5

Step-by-step explanation:

find the volume of the rectangular prism below

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Hopes this helps if wrong I am so sorry:

Answer: 63

Answer : 63
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I need help on 9 and 10 ASAP 9 is finding area

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Answer:

9 is 25 10 is 26

Step-by-step explanation:

area is both sides multiplied perimeter is all sides added together

HELP ME PLZ PLZ PLZ!

Answers

Answer:

I don't know the value of either, could you add more information?

Step-by-step explanation:

I'd be glad to help.

how much money was originally invested if you have $45,917.34 in an account after 9 years of generating 7% interest compounded monthly

Answers

Answer:

Step-by-step explanation:

May someone help me on this question please

Answers

Answer:

y = 225x + 625

Step-by-step explanation:

slope (m) = rise/run = Δy/Δx = (1750-625) / (5-0) = 1125/5 = 225

It means for one additional child (Run) will charge $225 (Rise) per month.

Basic fee is $625 (y intercept: b)

y = mx + b

Equation: y = 225x + 625

PLEASE HELP ILL GIVE YOU BRAINIEST
How many lines of symmetry does the figure below have? If there are no lines of symmetry,
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Onone
O8
O4
O 16

Answers

The answer is 8. This is an octagon so usually however many lines there are, that’s how many lines of symmetry but it won’t always work out like that, ex: some triangles

please help ill give brainly and heart !!!!

Mrs Phelps stores her family's cereal in a container shaped like a cylinder, the height of the container is 12.75 inches and the diameter is 7 inches which measurement is closest to the volume of the cylinder in cubic inches?

A ) 280.25 inches
B ) 490.43 inches
C ) 1786.56 inches
D ) 1961.72 inches

Answers

Answer:

it is B how are you

Step-by-step explanation:

trust me

Alan's dogs have a total of 24 legs . If each dog has 4 legs, which equation gives the number of dogs (d) that Alan has

a. 4×d=24

B. 4×l=24

C.4+d=24

D. 4+l=24

Answers

Answer:

a. 4×d=24

Step-by-step explanation:

Since it is asking for the number of dogs and each dog has 4 legs, you multiply

And dogs is (d), so a

A is the answer bc it’s 4 times the number of dogs

If you are given 7x + 9, what does the expression equal if x = 8

Answers

Answer:

Step-by-step explanation:

Answer:

7x8+9

7x8=56

56+9=65

Step-by-step explanation:

I might be wrong

Please help me! 5th-grade math.

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Answer:

a. Common Multiples

b. Lowest Multiple

Step-by-step explanation:

Answer:

6. common multiples

7. lowest

Step-by-step explanation:

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Answer:

1150

Step-by-step explanation:

divide into two rectangles, solve area for separate rectangles then add

a scale drawing of an automobile has a scale of 1 inch= 1/2 foot. The actual width of the car is 8 feet. What is the width on the scale drawing?

Answers

Answer:

16 inches

Step-by-step explanation:

8 x 2 = 16

28. 18. 8. -2...

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Answers

Answer:

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Step-by-step explanation:

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Answers

Step-by-step explanation:

your answer is 113 0.97 inch square

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Step-by-step explanation:

i am also an Acellus user and this is what worked for me

Find the Perimeter of the figure below, composed of a parallelogram and one
semicircle. Rounded to the nearest tenths place

Answers

Answer:

38.6 units.

Step-by-step explanation:

The given figure is composed of a parallelogram and one semicircle.

We need to find the perimeter of the parallelogram.

Perimeter = sum of all sides

ATQ,

P = 9+8+9+(2πr/2)

i.e.

[tex]P=26+\pi r\\\\=26+3.14\times 4\\\\=38.56\ \text{unit}[/tex]

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So, the perimeter of the figure is equal to 38.6 units.

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Answers

what i don’t understand

I stabbed my Bsis bully in a school event when I was little. (The parents were their)

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Answers

Answer:

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Given △HJK and △RST, what is tan(T)? (help please

Answers

Answer:

C. 12/5

Step-by-step explanation:

∆HJK is similar to ∆RST, therefore, the their trigonometric ratios would be equal to each other.

There,

Tan T = Tan K

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How will the graph of y=a* change when the function is transformed to y = 2a* + 9? Please state how the 2
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Answers

Y = 2y + 9. A = y, 2 means multiply yhe variable y two times, and u just add 9. Btw y = -9

Can you please help me....Thank you!

Answers

Answer:

mean=7

median=8

range=9

mode=3

mean=15

mode=17

range=14

median=14

mean=11

mode=none

range=10

median=4.5

mean=6

mode=4

range=13

median=4

Step-by-step explanation:

there you go, I think that's right but it's been awhile since I've had to do mode mean median and range

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Answer:

Step-by-step explanation:

20 x 7 = 140 divided by 2 = 70

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