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2 years ago

If x2 = 81, what are the TWO answers?

Mathematics

2 answers:

Sphinxa [80]2 years ago

8 0

Your answer is 9, -9

nika2105 [10]2 years ago

4 0

Answer:

9 and -9

Step-by-step explanation:

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3 years ago

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Answer:

D. Malik substituted 60 for y instead of x.

Step-by-step explanation:

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2 years ago

Hello there, <br><br> can someone please help me with this question

monitta

Answer:

10 sides.

Step-by-step explanation:

Two same interior angles + 72 degrees = 360.

Thus, the interior angle of the polygon is $\frac{360-72}{2} =144$ .

The formula to find the interior angle of a polygon is $\frac{180(n-2)}{n}$

$\frac{180(n-2)}{n} =144$

Multiply both sides by n:

$\frac{180\left(n-2\right)}{n}n=144n$

$180\left(n-2\right)=144n$

Expand:

$180n-360=144n$

Add 360 to both sides:

$180n-360+360=144n+360$

$180n=144n+360$

Subtract 144n from both sides:

$180n-144n=144n+360-144n$

$36n=360$

Divide both sides by 36:

$\frac{36n}{36}=\frac{360}{36}$

$n=10$

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2 years ago

Assume that y varies inversely as x. If y=6 when x=-4, find x when y= 12/5

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This answer is : Y=2.4

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1 year ago

In terms of the number of moose, what is the relative frequency of male moose, female moose, adult moose, and baby moose? Write

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3 years ago

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