Answer: x=90
Step-by-step explanation: 11 x 7.5 =90
You would do tan<span>Ɵ = 9/12
tan^-1(9/12) = </span><span>Ɵ
</span><span>Ɵ = 36.87 degress
make sure your calculator is in degree mode
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Answer:
thank you so much
Step-by-step explanation:
Answer:

Step-by-step explanation:
x and 52 are supplementary, so they add up to 180°

Answer:
-2n^2 - 12n, that's how I understand