2 years ago

Question 3 of 10

Mathematics

2 answers:

12345 [234]2 years ago

8 0

Answer:

F. and D.

Step-by-step explanation:

square root of 81 is 9 because 9 is a number which produces a specified quantity when multiplied by itself.

andreyandreev [35.5K]2 years ago

6 0

The answer should be 9 if I’m not mistaken

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1 year ago

Mark knows that his yard is 214 times as long as it is wide. Which equation shows the length, in feet, of the fence that goes al

irakobra [83]

Answer:

Length in feet is equal to $\frac{2P}{6.5}$ , where P is the perimeter

Step-by-step explanation:

Let the width (W) of the yard be "X"

$W = w$

Then the length(L) of the yard will be

$2\frac{1}{4} * w$

$L = \frac{9}{4} *w$

The perimeter of the yard will be equal to the sum of twice the length and width of the yard

Thus,

$P = 2 W + 2L\\$

Substituting the given values in above equation, we get -

$P = 2 w + 2 (\frac{9}{4})w\\P = 2w + 4.5 w\\P = 6.5w$

Thus, width in terms of perimeter is equal to

$w = \frac{P}{6.5}$

Length in feet is equal to $\frac{2P}{6.5}$

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2 years ago

3x-7y=2 solve for x. Can you show how you do it?

guajiro [1.7K]

3x-7y=2 ; 3x=2+7y x=2x+7y/3

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3 years ago

Find x.<br>I need the answer asap, please.

Nezavi [6.7K]

Answer:

x=28

Step-by-step explanation:

x+24+100+x=180

x+124+x=180

2x+124=180

2x=180-124

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2 years ago

Seven ninths as a decimal

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2 years ago

Read 2 more answers