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3 years ago

12

I need help also say how you got the answer

1 answer:

steposvetlana [31]3 years ago

5 0

Your answer is F.

It says she walks at a rate of 4 miles PER hour. If there is a word “per” that means you are multiplying which gives you 4p.

Lastly, it says she has a goal of walking AT LEAST 18 miles. That means 4p must be same or greater than 18.

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Answer:

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Step-by-step explanation:

step 1

Find the length side a

Applying the law of cosines

$a^2=b^2+c^2-2(b)(c)cos(A)$

substitute the given values

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step 2

Find the measure of angle B

Applying the law of sines

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substitute the given values

$\frac{36.87}{sin(51^o)} =\frac{40}{sin(B)}$

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step 3

Find the measure of angle C

Remember that the sum of the interior angles in any triangle must be equal to 180 degrees

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$A+B+C=180^o$

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