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Bumek [7]
4 years ago
15

Evaluate the function requested. Write your answer as a fraction in lowest terms. Find Cos B

Mathematics
2 answers:
Pepsi [2]4 years ago
8 0
Answer: cos(B) = 9 / 41

Reasoning:

1) Remember the definition of the ratio cosine:

For a right triangle, cos(x) = adjacent-leg / hypotenuse.

2) The figure shows that for the angle B, the adjacent leg is 27 and the hypotenuse is 123.

3) So, use the formula to find cos(B):

cos(B) = 27/123.

4) Simplify the fraction: 27 / 123 = 9 / 41.

Answer: 9 / 41
Brrunno [24]4 years ago
7 0
We have
<span>Cos B=27/123
27=3</span><span>^3
123=3*41
27/123=</span>3^3/(3*41)=3^2/(41)=9/41

Cos B=9/41

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