A daredevil jumps off a tall building. He falls freely for several seconds before releasing his parachute. His height ( ) in meters, seconds after jumping can beℎ푡 modeled by:before he releases his parachute andℎ =− 4.9푡 2 + 푡 + 360 after he releases his parachute. How long after jumping did heℎ =− 4푡 + 142 release his parachute?

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function.a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.

Solve for b. ab + c= d b= a + old ob=allc-ch b= (d-c/a