3. Solve each triangle. Round answers to the ncarest tenth, if necessary.
a) In /\ABC,

b) In /\PQR,

c) In /\LMN,

point a is the center of the circle that passes through points e, f, and g and the center of the circle that passes through points x, y, and z.

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.