Please help if you can! I'm so lost

4th option is correct xy=-10

if this was to u plzz mark me the brainliest

answer: no

step-by-step explanation:

you are only given the cost not the amount of pounds.

i do not know the answer

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.