At a store, customers are randomly selected to participate in a survey.
On Friday, there were 500 customers at the store. Of those, 90 were
selected to participate in the survey. On Saturday, the store manager
wants 126 people to participate in the survey.
Part A: If the probability of being selected to participate in the survey
on Saturday is the same as it was on Friday, how many total
customers must enter the store on Saturday?
Part B: If 25% of the customers who completed the survey were
female, how many total females completed the survey?

To find the extreme values of a function f(x. y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x, y)=xy

Given the equation f(x)=a(b)x where the initial value is 40 and the growth rate is 20% what is f(4)

The clayton family’s pool has vertices at the coordinates (0, 2), (0, 5), (2, 5), (2, 6), (5, 6), (5, 1), (2, 1), and (2, 2). if each grid square has an area of 9 square feet, what is the area of the pool?