A tub is full of water. Water is draining from the tub at a constant rate measured in gallons per minute. The volume, V, of the water in the tub can be described by the
equation V = 14 – 7/2t, where t is the time in minutes. Which statement is correct?

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

Guys i really need or i have to stay late up night

If sr is 4.5cm and tr is 3cm, what is the measure in degrees of angle s?