Answer:
∠A = 22°
Step-by-step explanation:
Given:

We take inverse of sine to find angle A.
So,
°
22.23° rounded to nearest whole degree is 22°.
∴
°.
Its basically saying 8×9a is equal to 9×-2a then you answer it the answer is 72=-18
Given the function below:

To find f(-2), we substitute x = -2 in the equation. Since f(-2) means the value of f(x) at x = -2.

Replace x-term to -2 and evaluate.

Answer
Let me know if you have any doubts!