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ign A ved Work Revert to Last Response NTS LARAPCALC10 2.3.017. ght s (in feet) at time t (in seconds) of a silver dollar dropped from the top of a building is given by s = -16t + 505. (a) Find the average velocity on the interval [4, 5]. ft/s (b) Find the instantaneous velocities when t = 4 and when t = 5. s'( 4) = ft/s s'(5) = ft/s (c) How long will it take the dollar to hit the ground? (Round your answer to two decimal places.) (d) Find the velocity of the dollar when it hits the ground. (Round your answer to one decimal place.) ft /s POINTS LARAPCALC10 2.4.004.EP. sider the following. 9(x) = (3x - x3) h(x) = (8x + 9) f(x) = (3x -x ) (8x + 9) d g'(x) and h'(x). ( x ) = -3x2+ 3 ( x ) = 8 se the Product Bule to find the MacBook Air