"Rachelle is buying panelling for wainscotting for her hall. the panels are 4' by 8'. the wainscotting will be 4' high and the room is 19' by 13'. there are two doors measuring 30" wide and one 12' window that will only need a 2' panel of wainscotting under it. how many panels will she need?, assuming no waste"​

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

Let f(x) = x+3 and g(x) = 1/x the graph of (fog)(x) is shown below what is the range of (fog)(x)?

What is the value of f(x) = 2.2 for f(-2)?