7 You ve been asked to build a machine for a TV commercial

Last updated: 6/28/2023

7 You ve been asked to build a machine for a TV commercial that launches shampoo bottles from ground level over the heads of models with their unruly hair stacked high You estimate the shampoo needs to clear at least 9 feet in order to sail over their heads The equation that represents the height of the bottle as a function of time t in seconds is h 16t 35 2t How many times does the shampoo cross the 9 foot threshold shampoo reaches 9 feet times