An object is thrown into the air with an initial velocity of 5 m/s from a height of 9 m. the equation h(t) = -4.9t^2 + 5t + 9 models the height of the object in meters after t seconds. about how many seconds does it take for the object to hit the ground? round your answer to the nearest tenth of a second. a. 0.9 b. 1.5 c. 2.0 d. 9.0

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?

Find the values of y: 3y^3(y^2+ 2/3y)=0

Which situation can be modeled by the inequality 5 + 10w ≥ 45? a. you start with $5 and save $10 a week until you have at least $45. b.you start with 5 baseball cards and purchase 10 cards every week until you have at most 45 cards. c.you start with 5 water bottles and purchases cases of 10 water bottles each until you have a total of 45 water bottles. d.you spend $5 plus $10 per week until you have less than $45.