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2 years ago

A square has an area of 72 square inches. What is the side length?

Mathematics

1 answer:

Artemon [7]2 years ago

6 0

Answer:

8.5

Step-by-step explanation:

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Find the sum of the equation

stealth61 [152]

Answer:

$\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}$

Step-by-step explanation:

1) Rewrite ${y}^{2}-2y+1y$ in the form ${a}^{2}-2ab+{b}^{2}$ , where a = y and b = 1.

$\frac{y}{{y}^{2}-2(y)(1)+{1}^{2}}+\frac{6}{{y}^{2}+6y-7}$

2) Use Square of Difference: ${(a-b)}^{2}={a}^{2}-2ab+{b}^{2}$ .

$\frac{y}{{(y-1)}^{2}}+\frac{6}{{y}^{2}+6y-7}$

3) Factor ${y}^{2}+6y-7$ .

1 - Ask: Which two numbers add up to 6 and multiply to -7?

-1 and 7

2 - Rewrite the expression using the above.

$(y-1)(y-7)$

Outcome/Result: $\frac{y}{(y-1)^2} +\frac{6}{(y-1)(y+7)}$

4) Rewrite the expression with a common denominator.

$\frac{y(y+7)+6(y-1)}{{(y-1)}^{2}(y+7)}$

5) Expand.

$\frac{{y}^{2}+7y+6y-6}{{(y-1)}^{2}(y+7)}$

6) Collect like terms.

$\frac{{y}^{2}+(7y+6y)-6}{{(y-1)}^{2}(y+7)}$

7) Simplify ${y}^{2}+(7y+6y)-6y$ to ${y}^{2}+13y-6y$

$\frac{{y}^{2}+13y-6}{{(y-1)}^{2}(y+7)}$

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2 years ago

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A 14.5-gallon gasoline tank is $\frac{3}{4}$

LekaFEV [45]

The answer is in the image. We need 3.625 gallons to fill the tank.

6 0

3 years ago

The volume of a pyramid that fits exactly inside a cube is 10 cubic feet. What is the volume of the cube?

Tatiana [17]

Answer:

the cubic feet will be 1000

6 0

3 years ago

2x^2-21x-36. Can someone help me out?

sergeinik [125]

-752<span>thatswhat the answer should be
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8 0

3 years ago

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find the area of the bedroom with the shape shown in the figure, in square feet 12 ft 14 ft 7 ft 34 ft

katrin [286]

Answer: See Explanation

Step-by-step Explanation: The L shaped figure, ignoring the track-like image inside, is the same as the rectangle with just the 4 x 10 section removed.

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2 years ago