The regular price of a tv is x dollars during a sale ,$39 is subtracted from this price the sale price is $215

254

Step-by-step explanation:

x-39=215

215+39=x

215+39=254

Step-by-step explanation:

215 minus 39 equals 176 the Tv should be $176 dollars

Ps: don't come for me if im wrong

x=30

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.