Aball is thrown from a height of 140 feet with an initial downward velocity of 8 ft/s. the ball's height h (in feet) after t seconds is given by the following.

h=140-8t-16t^2

how long after the ball is thrown does it hit the ground?

round your answer(s) to the nearest hundredth.
(if there is more than one answer, use the "or" button.)

Standard deviation of 19,29,21,22,23

Aretha wanted to gather data about the cost of local bowling leagues in her area. she plotted the data and determined that the average bowling league costs consist of a one-time registration fee and a monthly fee modeled by the equation y = 15x + 20. identify and interpret the y-intercept in this model. the y-intercept is 20. this is the cost per month. the y-intercept is 20. this is the cost of registration. the y-intercept is 15. this is the cost of registration. the y-intercept is 15. this is the cost per month.

Which of the functions graphed below has a removable discontinuity?