Suppose you are planning to sample cat owners to determine the average number of cans of cat food they purchase monthly. the following standards have been set: a confidence level of 99 percent and an error of less than 5 units. past research has indicated that the standard deviation should be 6 units. what is the final sample required? if only 30 percent of households have a cat, what is the initial number of households that need to be contacted?

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

Find all solutions for 2y - 4x =2 y = 2x + 1 site: socratic. org

Use circumcenter theorem to solve for the given values