Question

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

Answer 1

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.

$cos(21) = \frac{y}{18}\\\\18(cos(21)) = y = 16.8$

Question 5:

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

$sin(43) = \frac{31}{x} \\\\x = \frac{31}{sin(43)} = 45.45$

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