Suppose you have 56 feet of fencing to enclose a rectangular dog pen. The function A= 28x-x?, where x = width, gives you the area of the dog pen in square feet. What
width gives you the maximum area? What is the maximum area? Round to the nearest
tenth as necessary.
A width = 28 ft; area = 196 ft2
B width = 28 ft; area = 420 ft?
Cwidth = 14 ft; area = 588 ft?
D width = 14 ft; area = 196 ft?
А
O a
Ob
B
C с
Od
D

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step-by-step explanation:

yes

step-by-step explanation:

yes

if you are looking for the unit rate then the answer would be 9 because unit rate is distance divided by time.

step-by-step explanation:

step-by-step explanation:

the ratio of red paint to blue paint is always 9/7. that means that, whatever x's value, (4x+12)/(4x-4) has that same ratio. so, set up an equation and cross-multiply to solve for x:

9/7 = (4x+12)/(4x-4)

9(4x-4) = 7(4x+12)

36x - 36 = 28x + 84

8x - 36 = 84

8x = 120

x = 15