At the amusement park, erin waited in line 15 2/4 minutes for the roller coaster and 28 1/4 minutes for the ferris wheel. how long did she wait in line in total

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

Simplify. 3(4+4x) (type your answer in with no spaces)

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0