Question

Find the value of x. Round to the nearest tenth.

Answers
A-12.5
B-10
C-13
D-9.7!

Answer 1

Answer: A. 12.5

Explanation:

`cos\ \theta=(adjacent)/(hypotenuse)\\\\\\cos\ 28^o=(11)/(x)\\\\\\\rightarrow\ x=(11)/(cos\ 28^o)\\\\\\\rightarrow\ x=12.46\\\\\\\rightarrow\ \boxed{x=12.5}\qquad rounded\ to\ the\ nearest\ tenth`