Step-by-step explanation:
An example : x² + 1 = 0....
The answer is 23 because you would substitute in the 4 for the X and multiply 5 times 4 = 20 then add 20 plus 3 and you get 23
8920000000.
Since the problem is asking for a positive 10^9 power, the final number with be greater than 8.92
Complementary angles add up to 90 so
angle + 47 = 90
angle = 90 - 47
angle = 43 so A
