I'm on this too on keystone
Answer:
Step-by-step explanation:
Surface area of the facing side and its opposite side = 4* height = 4 * 2
= 8 m^2
Total surface area = 2 * 8 + 2 * 4 *4 + 2 * 4 * 2.5.
= 16 + 32 + 20
= 68 m^2.
Answer:
26.25, or 26 1/4, inches
Step-by-step explanation:
each day 3.75inches, so in 7 day, it grows 3.75 * 7 = 26.25inches
It would be
(X^4+2X^2) -119(X^2-2X) then you would simplify
X^4+2X^2-119X^2-2X
So it would be
X^4+117X^2-2X=0
So basically X is undefined
Answer:
0
Step-by-step explanation:
Write out the 2 equations:
2x + y = -3
-2y = 6+4x
-You then pick a variable that you want to solve for. I chose to solve for y because it would be a bit easier.
-2y = 6 + 4x
-Divide both sides by -2 to isolate the variable
(-2y) / -2 = (6 + 4x) / -2
-it comes out to y = -3 -2x
-Now that you have the y you can plug in the value into the second equation.
2x + y = -3 ---> 2x + (-3 -2x) = -3
This can be simplified to:
2x - 3 - 2x = -3
The 2x's cancel out because there is a +2x and a -2x. You are left with a
-3 = -3. If you add 3 to both sides of the equation you end up with 0 = 0, which can be simplified to just 0.
