A catapult launches a Boulder with an upward velocity of 108 ft/s. The height of the Boulder, h, in feet after t seconds is given by the function h=-16t^2+108t+30. How long does it take the Boulder to reach its maximum weight? What is the boulders maximum height?

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

Answer the following for 896.31 cm= km 100cm = 1m 1000m = 1km a) 0.0089631 b) 0.0089631 c) 8.9631 d) 89.631

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)