What is the a. the largest stock exchange in north america b. the margin of profit you gain from stock c. the government agency which oversees the trading of stock d. the total worth of your stock portfolio

The triangles are similar. what is the value of x? x=

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

Which expression gives you the distance between the points (5,1)and(9,-6)