SOLUTION: what is the approximate value of Φ, if cos Φ=7/9 a. 38 degrees b. 52 degrees c. 74 degrees d. 16 degrees e. 63 degrees

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Question 1170277: what is the approximate value of Φ, if cos Φ=7/9
a. 38 degrees
b. 52 degrees
c. 74 degrees
d. 16 degrees
e. 63 degrees
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

Φ=cos%5E-1%28+7%2F9%29=38.94°

the approximate value of Φ:
a. 38 degrees