Answer:
E. 36
Step-by-step explanation:
You have to do a² + b² = c²
Plug in
15² + b² = 39²
225 + b² = 1521 (subtract 225 on both sides)
√b² = √1296 (square root on both sides)
b = 36
Hope this helps ya!
C
Ignore**
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<h3>
Answer: 24/25</h3>
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Work Shown:
cos(angle) = adjacent/hypotenuse
cos(L) = ML/LK
cos(L) = 24/25
The diagram is below.
The side KM = 7 is not used at all.