When figuring out how much concrete is needed to build a pool what do you multiply the price of the concrete by?

1 answer:

3 0

The concrete will cover the surface area of the pool.
Multiply the price ($/ft²) by the surface area to calculate the total cost.

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Tamiku [17]

Answer:

Step-by-step explanation:

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3 years ago

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HELP ASAP Simplify (xy3z,4)4 A. xy3z16 B. xy3z8 C. x4y12z16 D. x5y7z8

MariettaO [177]

Answer:

(xy^3z,4)

Step-by-step explanation:

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3 years ago

A parallelogram with four right angles? Which one is it??

Sliva [168]

Y is the answer for four right angles

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3 years ago

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You are designing a rectangular garden. the garden will be enclosed by fencing on three sides and by a house on the fourth side.

RUDIKE [14]

Suppose the dimensions of the rectangle is x by y and let the side enclosed by a house be one of the sides measuring x, then the sides that is to be enclosed are two sides measuring y and one side measuring x.

Thus, the length of fencing needed is given by

P = x + 2y

The area of the rectangle is given by xy,

i.e.

$xy = 288 \\ \\ \\ \\ \Rightarrow y= \frac{288}{x}$

Substituting for y into the equation for the length of fencing needed, we have

$P=x+2\left( \frac{288}{x} \right)=x+ \frac{576}{x}$

For the amount of fencing to be minimum, then

$\frac{dP}{dx} =0 \\ \\ \Rightarrow1- \frac{576}{x^2} =0 \\ \\ \Rightarrow \frac{576}{x^2} =1 \\ \\ \Rightarrow x^2=576 \\ \\ \Rightarrow x=\sqrt{576}=24$

Now, recall that

$y= \frac{288}{x} = \frac{288}{24} =12$

Thus, the length of fencing needed is given by

P = x + 2y = 24 + 2(12) = 24 + 24 = 48.

Therefore, 48 feets of fencing is needed to enclose the garden.

8 0

4 years ago

Express the fraction 3/4, 7/16 and 5/8 with the LCD

____ [38]

12/16, 7/16, 10/16 (not simplified, just with LCD);The LCD of the 3 fractions is 16 (from denominators) so all we have to do is multiply both the numerator by the same number that multiplies with the denominators to get 16. We leave 7/16 alone since it already has denominator of 16.

3/4 * 4 = 12/16

5/8 * 2 = 10/16

3 0

3 years ago