HELP

Step-by-step explanation:

a)

C. pi*x + 2x

b)

P = pi*x + 2*x

25.71 = 3.142x + 2x

25.71 = 5.142x

25.71/5.142 = x

5 = x

x = 5cm

34

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.