Find the maximum value of the objective function and the values of x and y for which it occurs. F=2x+y 3x+5y<=45 x>=0 and y>=0
2x+4y<=32

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?

The amount spent on food and drink by 20 customers is shown below what is the modal amount spent ?

Suppose that the price p, in dollars, and the number of sales, x, of a certain item follow the equation 4 p plus 4 x plus 2 pxequals56. suppose also that p and x are both functions of time, measured in days. find the rate at which x is changing when xequals2, pequals6, and startfraction dp over dt endfraction equals1.5.