6. (2,2)
7. (-7/2, 8)
8. (0,1)
9. (-3, -1/2)
I think that's 2x but I'm not really sure.
I hope this helps.
Answer:
90
Step-by-step explanation:
Think of 5(18) as 5(10+8). This is easily done mentally: 50 + 40 = 90.
Simplitying
8y + - 3y=0
combin like terms : 8y + - 3y= 5y
5y = 0
solving
5y = 0
solving for variable. ' y ' .
move all terms containing y to the left , all other terms to the right
divide each side by ' 5 ' .
y = 0
simplifying
y = 0
2L + 2w = 112 ---> L + w = 56 ---> w = 56- L
Area = L*w = L(56-L) = 735
56L - L^2 = 735
0 = L^2 - 56L + 735
0 = (L - 21)(L - 35)
THe dimensions of the rectangle are 35 x 21
