99,999,999 + (-4) is basically 99,999,999 - 4
99,999,999 - 4 = 99,999,995
Answer:
b
Step-by-step explanation:
Hope this helped! Please tell me If I'm wrong!
Step-by-step explanation:
x² + 4x - 9
= (x + 2)² - 13
a = 2, b = -13.
X is 66 degrees, you just subtract 24 to 90 and it gives you 66.
