a doctor on a certain day spent 1/8 of her time on duty in the emergency ward, 2/3 of her time in the children's ward, 4/15 of her time in female ward. The rest of her time on duty was spent in the men's ward. She spent 40 minutes in the men's ward. What is her estimated time in hours and minute spent on duty that day?

d i think

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.

-12 > a

step-by-step explanation:

-11 > 1 + a

subtract 1 from each side

-11 -1> 1 -1+ a

-12 > a

answer: the answer is d