You get 8 if you round up from 8.041451517
and 8 cubed is 512
but if you round from 8.041451517 to 8.04, and you cube it, it equals 519.718464
and if you round that up it would equal 520
or 519.71
so it depends on how you do it
Since the deepest point of Death Valley is below sea level, its altitude is negative. So, the difference between the altitudes is

Subtracting a negative means to add, so we have

Just combine like terms: all of the x^2 together, all of the x's together and all of the numbers:
3x2+5x2+5x-2-1
8x2+5x-3 simplified, so letter A
Answer:
X
Step-by-step explanation:
CAUSE
2X=X
DIVIDE BOTH SIDE BY 2 EQUAL ONE AND ONE IS EQUAL TO ( X)