9514 1404 393
Answer:
x = -7, x = 9
Step-by-step explanation:
We presume your equation is ...
x² -2x -63 = 0
Factors of -63 that have a sum of -2 are -9 and +7. Then the factored equation is ...
(x -9)(x +7) = 0
Solutions make the factors zero.
x -9 = 0 ⇒ x = 9
x +7 = 0 ⇒ x = -7
The solutions to the quadratic equation are x = -7 and x = 9.
The nearest when you round it would be to the closest is 24.2 m i think dont no for sure but i;m gonna go with that answer
Step-by-step explanation:
हवा से भी तेज चलने वाली रोशनी है।
light travels faster than air
45 = 90% * x
45 = .90x
45/.90 = x
x = 50
45 is 90% of 50
It’s either B or D. I’m sorry I’m not so sure but I think it’s either one of those.
