4 1/2 + 2 3/4 + 1.5 + 2.25 + 2 + 2 1/2?

A. 16.25
B. 15
C. 14.5
D. 15.5

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

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

What is the prime factorization of 23 ?me with this question