What is the value of x?

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x =

26 degrees

Step-by-step explanation:

64 +90 = 154. 180-154 = 26.

180 degrees is straight line.

898.1666667

step-by-step explanation:

5389/6 = 898.1666667

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.