Please help I’m being timed

A. 60 because 70 +50 =120 and 180 - 120 is 60 so your answer is 60

Step-by-step explanation:

60

a: 1/6, j: 1/4

step-by-step explanation: you are welcome

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.