James and his friends ordered hamburgers that cost four dollars each and fruit cups that cost three dollars each write an algebraic expression for the total cost of their purchase

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

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

Select the two pairs of figures that are similar.