What is the solution set to
91=-1+21+4

   i hope this helps!   :)

Step-by-step explanation:

given   91 = -1 + 21 + 4

lets combine like terms first   91 = -1 + 25

now add one to both sides   92 = 25

subtract 25 from both sides   67 = 0

there is no solution to this problem

its 69.420

step-by-step explanation:

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.