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barxatty [35]
3 years ago
11

I NEED HELP FAST! Two different pools are being considered for a back yard. How many more feet will the larger pool occupy?

Mathematics
1 answer:
Burka [1]3 years ago
8 0

Answer:

138.16ft²

Step-by-step explanation:

Oh boy, this is a long one so hang onto your hats:

We're going to start by finding the area of the smaller circle (or pool) the formula for the area of a circle is pi x radius² and we're given the diameter, here's what we're gonna do:

take the diameter and divide it by 2:

20 ÷ 2 = 10

So now we have the radius and all we have to do is plug that into the formula:

10² = 100

(we're doing 3.14 for pi)

3.14 x 100 = 314

So the area of the smaller circle is 314ft²

Now we gotta do the bigger circle, and since we already have a radius, we can skip a step:

12² = 144

3.14 x 144 = 452.16‬

So the area of the bigger circle is 425.16ft²

But now we have to find the difference between the two areas:

425.16 - 314 = 138.16‬

So the larger pool occupies 138.16 more ft² than the smaller pool

lemmie know if this is wrong

~ ₕₒₚₑ ₜₕᵢₛ ₕₑₗₚₛ! :₎ ♡

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Answer:

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Step-by-step explanation:

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The units of the numbers involved need to be compatible, which is to say the speed units need to be the ratio of distance units to time units.

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1B, C. Since Tom is traveling upstream, his net speed is the difference between his paddling speed (8 mph) and the current (3 mph). That is, he makes headway upstream at the rate of 8-3=5 mph. This difference is the "speed" in the formula.

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You may see the above formula written a number of ways. Using single-letter variables, it is often written as ...

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