Answer:
B. -9, 7
Step-by-step explanation:
For the rational expression to be undefined the denominator has to equal 0.
x² + 2x - 63 = 0
Factor left side.
(x - 7)(x + 9) = 0
Set factors equal to 0.
x - 7 = 0
x = 7
x + 9 = 0
x = -9
x = -9 or x = 7
I believe it would be sixteen people. Hope it helps! :)
I dunno I rlly don't know like seriously I'm in 7th
Well... triple the numbers. 7x3 is 21. 1.3x3 is 3.9. And 900,000x3 is 2,700,000.
But the answer is: 3.9gigawatts