P = 2(L + W)
L = W + 4
A = 5P - 4
P = 2(W + 4 + W)
P = 2(2W + 4)
P = 4W + 8
A = 5(4W + 8) - 4
A = 20W + 36
A = L * W
A = W(W + 4)
A = W^2 + 4W
W^2 + 4W = 20W + 36
W^2 - 20W + 4W - 36 = 0
W^2 - 16W - 36 = 0
(W + 2)(W - 18) = 0
W - 18 = 0
W = 18
L = W + 4
L = 18 + 4
L = 22
A = L * W
A = 18 * 22
A = 396
P = 4W + 8
P = 4(18) + 8
P = 72 + 8
P = 80
length = 22, width = 18, area = 396, perimeter = 80
Answer:
1.5
Step-by-step explanation:
2/2=1 so 2/1=0.5 so answer is 1.5
Answer:
The answer would be (-8, -10)
Step-by-step explanation:
Find the Slope from the two points given. You should get a slope of 2/7. You should be able to get the other endpoint after you have found the slope. And if you haven't seen the slope formula before, it is: y2 - y1 / x2 - x1
Answer:
x=2.65
Step-by-step explanation:
First, we need to figure out how much the length of the sides is changing between the equations. In this case it is changing by a factor of 2.5. Now we need to work backwards. First use this equation:

This is because whatever the length of the side with x is, will be 14/2.5. So divide both sides by 2.5:

Next, add 5 to both sides:

Then divide both sides by 4:
