C = 2m^2 + m
D = 2 - 6m + 2m^2
2C = 2(2m^2 + m) = 4m^2+2m
2D = 2(2-6m+2m^2) = 4-12m+4m^2
2C - 2D =
4m^2+2m-(4-12m+4m^2) =
4m^2+2m-4+12m-4m^2 =
0m^2 + 14m -4 =
14m - 4
<h2>
Answer:</h2>
A=12in²
Step-by-step explanation:
b Base 8in
hb Height 3in
A=hbb
2=3·8
2=12in²
Answer:
5545
Step-by-step explanation:
1) 50000
2) 770000
because you look at the place value before the 10,000 place and if it's above 4, then you round up. if it's below 5, you round down.
Answer:
= - 1/2
Step-by-step explanation:
6y+6.7=2.(y-3)
6y+42=2.(y-3)
6y+42=2y+2.-3
6y+42=2y-6
4y=-48
4y/4 = -48/4
y=-48/4
y=-12.4/1.4
y= -12
