Alexa was riding her motorcycle on a freeway at 480 kilometers north of her exit. She was riding south toward the exit at a constant velocity. If it took her 2 hours to get one quarter of the way to her exit. What was her velocity

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

Ben is three times as old as samantha, who is two years older than half of michel's age. if michel is 12. how old is ben?

Given the points a(-2, 1) and b(8, 6), find the coordinates of the point c on directed line segment ab, that partitions ab in the ration 2: 3.