The windshield wiper blade on julia’s car is 21 inches long. each swipe of the wiper makes an angle of 85 degrees as pictured below. to the nearest inch, how far does the tip of the windshield wiper travel with each swipe of the blade?     a        21 inches     b        30 inches     c        31 inches     d        33 inches

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

Mat bought a phone for $100. he has to pay $30 per mouth. if he has paid $640 in total, how many mouth has he had the phone?

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.