Answer: The first answer choice
Step-by-step explanation:
Answer:
<h3> - 18</h3>
Step-by-step explanation:
The final answer is -18. hope it helped.
The answer is -9i , 9i
x^2+81=0
x^2=-81
x=√-81
=9i,-9i
Answer: Isolate the variable by dividing each side by factors that don't contain the variable. x=−4
Step
Complementary means sum = 90, so 90-57 to get the other angle at 23 degrees
Supplementary means sum = 180, so 180-52 to get the other angle at 128 degrees