Ten samples of a process measuring the number of returns per 100 receipts were taken for a local retail store. the number of returns were 10, 9, 11, 7, 3, 12, 8, 4, 6, and 11. find the standard deviation of the sampling distribution for the p-bar chart.

Atruck can be rented from company a $50 a day plus $0.60 per mile. company b charges $20 a day plus $0.80 per mile to rent the same truck. find the number of miles in a day at which the rental costs for company a and company b are the same

A) find the derivative of the inverse to f(x) = 3x + sint at x 6. b) (cale) find the derivative of the inverse to f(x)+3sin at x 6. if x +2y -34, ind he behaviar of the cure at 4,.3), c) a. increasing, concave up d. decreasing, concave down b. increasing, concave down e. decreasing, inflection point c. decreasing, concave up

What are the intercepts of x^2+y-9=0