Lisa loves to walk her dog, Stanley. She walks him 3 miles in 2 hours. Explain what the constant of proportionality means in the context of the problem.

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

Sam claims that cos x =sin y if x and y are congruent angels. is sam correct ?

What effect would doubling all the dimensions of a triangular pyramid have on the volume of the pyramid? explain your reasoning.