You want to put down hardwood floors in your living room that is roughly 20 ft by 14 ft if the cost of the hardwood flooring is $4.25 per square foot find the approximate cost not including labor to put down hardwood flooring in your living room

Task

1)20*14=280 (FT2)

2)280*4.25=1190(dol)

Answer 1190 dollars  

I`m from Belarus.

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.