Use a calculator to find θ to the nearest tenth of a degree, if and with θ in QII
A)127.5
B)130.0
C)126.5
D)124.2
E)129.5

Name: Use a calculator to find θ to the nearest tenth of a degree, if and with θ in QII A)127.5 B)130.0 C)126.5 D)124.2 E)129.5
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Question

Use a calculator to find θ  to the nearest tenth of a degree, if    and ​  with θ  in QII ​
A)127.5 
B)130.0 
C)126.5 
D)124.2 
E)129.5

Quizplus · Accepted Answer

Use the inverse tangent function on both sides: 
tan(θ) = -4/-3
θ = tan^-1(-4/-3)
θ ≈ 126.5 degrees (rounded to the nearest tenth of a degree) 
This falls within QII, so the answer is C)126.5.

Use a Calculator to Find θ to the Nearest Tenth