Jaya sticks a 20 cm long plece of coloured tape on chart paper in the shape shown below: Chart Paper O Coloured Tape Which of these statements is true about the shape formed? (There is little or no overlap of tape) Its area is about 20 cm2
Its perimeter is about 20 cm
Its perimeter is about 80 cm
Its area is about 400 cm2

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.

angle efh= angle egh