The width of a rectangle is 1/3 its length, l .

which expression represents the perimeter of the rectangle?

answer choices

1/3l+l

2(l+1/3l)

4×1/3l

4(l+1/3l)

part 2

the perimeter of the rectangle from part 1 is 56 inches.

what is the area of the rectangle, in square inches?

99

step-by-step explanation:

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.