An object is propelled vertically upward from the top of a 224-foot building. the quadratic function s(t)=-16t^2+128t+225 models the balls height above ground, s(t), in feet, t seconds after it was thrown. how many seconds does it take till the object finnaly hits the ground? round to the nearest tenth of a second if necessary

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?

The two cylinders are similar. if the ratio of their surface areas is 9/1.44 find the volume of each cylinder. round your answer to the nearest hundredth. a. small cylinder: 152.00 m3 large cylinder: 950.02 m3 b. small cylinder: 972.14 m3 large cylinder: 12,924.24 m3 c. small cylinder: 851.22 m3 large cylinder: 13,300.25 m3 d. small cylinder: 682.95 m3 large cylinder: 13,539.68 m3

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?