4(x+1) is the only one equal to 0
Answer:
I'll explain below, just follow the directions. I can't directly draw it.
Step-by-step explanation:
find the length and the width of a rectangle whose perimeter is 18 ft
2L + 2W = 18
simplify, divide by 2
L + W = 9
L = (9-W)
:
whose area is 20 square feet
L*W = 20
Replace L with (9-W)
W(9-W) = 20
-W^2 + 9W - 20 = 0
Multiply by -1, easier to factor
W^2 - 9W + 20
Factors to
(W-4)(W-5) = 0
Two solutions
W = 4 ft is width, then 5 ft is the Length
and
W = 5 ft is the width, then 4 ft
Answer:
It's like adding whole numbers, but with a dot. add 75+75=150
Because 150 is more than 100, you add the 1 to the whole numbers, the 6 and the 3. Add 3+6+1=10
So your answer is 10.5
No because you would not be able to divide them by a number and get the same answer so no they are not proportional
