Jessica increases the temperature of a block of ice by 20'. which represents the amount by which Jessica must change the temperature for the block of ice to return to it's starting temperature. a)-40
b)-20
c)20
d) 40

B

Step-by-step explanation:

0.6

39mph

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.