X + y = 10
x - y = 2
add the equations together
2x = 12
x = 6
6 + y = 10
y = 3
Answer:
180x ft cubed
Step-by-step explanation:
1) The formula for the volume of a rectangular prism is length x width x height
... shortened it is "lwh"
2) Plug your numbers (and "x") into the equation doesn't tell you which is which, but since we are multiplying it doesn't matter.
It should now look like this "(15)(12)x"
3) Simplify.
180x ft cubed
Answer:
2x^3+8x^2-54x-84
Step-by-step explanation:
Answer:
slope is 9
Step-by-step explanation:
use the formula y=mx+b wherein m is the slope and b is the y-intercept
to solve for m, use formula (y2-y1)/(x2-x1):
= 
(you add 5 and 9 together because negative + negative is positive)
126/14 = 9
Answer:
positive
Step-by-step explanation
the line goes up and to the right
