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grin007 [14]
3 years ago
12

Find x. a. 30.9 b. 34.4 c. 17.1 d. 15.4

Mathematics
1 answer:
Naya [18.7K]3 years ago
3 0

Answer:

x = 17.1

Step-by-step explanation:

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

cos theta = adj / hyp

cos 42 = x/23

23 cos 42 = x

17.09233 =x

Rounding to 1 decimal place

x =17.1

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