4 years ago

What is the median of 75, 63, 89, 91

1 answer:

3 0

First, put them in order from least to greatest. 63, 75, 89, 91. To find the middle number, add 75 and 89 together, 164, and divide by 2. The answer is 82.

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A paper air plane looking polygon with sides of 5 5 and 8 what is the area

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If it has 3 sides then it's a triangle.
Using the formula $A= \sqrt{s(s-a)(s-b)(s-c)}$
where $s= \frac{a+b+c}{2}$
and a=5 b=5 c=8

∴ $s= \frac{5+5+8}{2} =9$
$area= \sqrt{9(9-5)(9-5)(9-8)}$
$area= \sqrt{144} = 12units^{2}$