Lulu finished a race in 42 minutes. Last year she took 3 minutes longer. Which equation can be used to find her finishing time last year?

you should add two sums to get higher equation that means he took 45 minutes last year that is

42+3=45

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.

i think it is c hope that