3 years ago

If the perimeter of an equilateral triangle is 30 ft, what is the area?

Mathematics

1 answer:

Citrus2011 [14]3 years ago

3 0

The value of each side will be 10 ft, the height of it will be $5\sqrt{3}$ , so the area is $25\sqrt{3}$

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I need help with this asap please

Lorico [155]

Answer:

The perimeter is 100 feet. This means that all the sides of the shape must add up to equal 100.

x + x + 5 + x - 3 + x + 4 = 100

4x + 5 - 3 + 4 = 100

4x + 6 = 100

4x = 94

x = 94/4

x = 23.5 feet

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3 years ago

What is the slope of (-5,-1) (5,5)? Explain.

ArbitrLikvidat [17]

Step-by-step explanation:

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patriot [66]

Answer: 0.0775

Step-by-step explanation:

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Standard deviation : $\sigma =15$

Sample size : $n=36$

Since its normal distribution , then the formula to calculate the z-score is given by :-

$z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}$

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34 less than (-34) the product of (multiply) 14 (14) and an unknown (x) is (=) 78 (78)

-34+14 times x=78
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