3 years ago

PLEASE HELP! A) 9 B) 8.6 C) 26.3 D) 5.7

Mathematics

1 answer:

lisov135 [29]3 years ago

3 0

Answer:

x = 9.0

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos theta = adj/ hyp

cos 39 = 7/x

x cos 39 = 7

x = 7/cos 39

x =9.007316961

x = 9.0

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