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Elenna [48]
3 years ago
5

A circular pool with a diameter of 18 ft will have a uniform 4 ft concrete walkway poured around it. If the concrete cost $4.25

a square foot, how much will it cost for the concrete
Mathematics
1 answer:
svetoff [14.1K]3 years ago
3 0
Below is the solution:

volume = lwh 
<span>= 18(3)(1/3) </span>
<span>= 18 cubic feet
</span>
Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions here.
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Shawn is coasting down a 500 cm long ramp on his inline skates. The wheels on his incline skates 32 cm in circumference. How man
Serhud [2]

Answer:

Step-by-step explanation:

16 rotations

500/32 = 15.625

15.625 rounded = 16

Therefore, the answer is 16 rotations.

Why:

500 and 32 are both given to you in distance. By divided 500 by 32 will give you how many times the shorter distance can fit into the longer distance. This will then give you the amount of rotations in the greater distance.

Once you have the answer, it asks for you to round to the nearest rotation. 15.625 rounds to 16 because 6 is in the tenths place. And we all know a number 5 or greater rounds up. So, 16 is the correct answer.

5 0
3 years ago
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If 8 pigs can fit in a pen, how many pens are necessary to make sure 71 pigs are all in a pen?
Ulleksa [173]

Answer:

9

Step-by-step explanation:

Each pen can only hold 8 pigs, and pens cannot be split up into fractions.

Divide. 71 / 8 = 8.875

There is no 7/8 of a pen, so you must round up.

8.875 → 9.

7 0
3 years ago
Find y. (leave answer in simplest radical form) *
egoroff_w [7]

Answer:

12

Step-by-step explanation:

We already found x in a previous problem.

x = 6

The right triangle on the right side with sides x and y is also a 30-60-90 triangle.

The hypotenuse is twice the short leg.

x = 6

y = 2x

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6 0
3 years ago
In an experiment, the probability that event A occurs is 0.2 and the probability that event B
erma4kov [3.2K]

Answer:

Step-by-step explanation:

 

P(A and B) = 0.1

3 0
3 years ago
Suppose that f(x)=x2 and g(x) =4/5x2. Which statement best compares the graph of f(x)?
Roman55 [17]

Answer:

See below.

Step-by-step explanation:

Are f(x)=x2 and g(x) =4/5x2 correctly written?

This answer assumes they are supposed to be:

f(x)=x^2 and g(x) = (4/5)x^2

If these revisions are correct, g(x) would produce values that are (4/5) of f(x).

See attached graph.

I don't see any of the options for "best statement."

6 0
2 years ago
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