The circumference of a circle varies directly as the diameter. a circle has a diameter of 70 feet and a circumference of 219.8 feet.

what is the circumference of a circle with a diameter of 17.5 feet?
a.
54.95 feet
b.
27.475 feet
c.
8.75 feet
d.
64.95 feet

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

Common binomial factor of 6x(3x+7)+5(3x+7)

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?