Can someone please help me on this question if you know the answer.

72 cm^2

Step-by-step explanation:

How many surfaces are there?

Two 2 x 3 rectangles

Two 2 x 6 rectangles

Two 3 x 6 rectangles

Area of 2x3 rectangle = 6 cm^2

Area of 2x6 rectangle = 12 cm^2

Area of 3x6 rectangle = 18 cm^2

2(6) + 2(12) + 2(18) = Total Area of all the Surfaces or Surface Area

12 + 24 + 36 = 72 cm^2

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.