Solve for the variable shown. Round answers to the nearest hundredth if needed.

Question

asked Jan 2, 2022 213k views

1 Answer

Poko · Answer 1 · 2022-01-06T11:22:22+0000

Answer and Step-by-step explanation:

Question 4:

We need to solve for y, so we need to use the cosine trig function, which is adjacent divided by hypotenuse.

$cos(21) = (y)/(18)\\\\18(cos(21)) = y = 16.8\\\\\\$

Question 5:

We need to use the sine trig function, which is opposite divided by hypotenuse.

$sin(43) = (31)/(x) \\\\x = (31)/(sin(43)) = 45.45$

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