Bell Work: Solve using the quadratic formula. The Point Imperial is the highest point of the Grand Canyon and it is 8,800 feet tall. A professional
hiker climbed to the top of one of the rims of the Grand Canyon that is 348 feet below Point
Imperial. The hiker threw a rock upward from that rim with an initial velocity of 18 ft per second.
How many seconds will it take the rock to hit the ground? Round your answer to the nearest tenth
of a second

What is the inverse of the function f(x)=4x+8

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Ascientist places 24 cells in a petri dish. she knows the cells grow at an exponential rate, doubling in number every hour. how long will it take (in hours) for there to be 1100 cells in the dish? time to 1100 cells: 5.51832530 hours how long will it take to reach 110 cells? time to 110 cells : 2.1963972 hours what is the average rate of change in the number of cells between 9 hours and 11 hours? average rate of change: cells per hour what is the instantaneous rate of change after 7 hours? instantaneous rate of change: cells per hour note: you can earn partial credit on this problem.