Flu has spread in school such that after x days, the number of sick students f(x) is given by f(x)=15x-x² where 0<or equal to x <or equal to 15. a. at what rate had flu spread after first day

b. when the flu has spread at the rate of 3 students per day, how many students where sick.

c. what is the value of x when f'(x)=0? Find the value of spread at this value of x interpret the value

d. what happens atfer the 10^th day

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)