alyssamaize
05.11.2019 •
Mathematics
What is the side length of a cube with a volume of 8000 in3?
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Ответ:
Volume = s³
s³ = 8000 in³
So, s = ³√8000 = 20 in
Ответ:
(-1, -1) and (2, 2)
Step-by-step explanation:
Substitute for y in the first equation and solve the quadratic.
x = x^2 -2
x^2 -x -2 = 0 . . . . subtract x
(x -2)(x +1) = 0 . . . .factor
Solutions are the values of x that make these factors be zero:
x = 2, x = -1
Since y=x, the solutions are ...
(x, y) = (-1, -1) and (2, 2)