Arock is dropped from a cliff and into the ocean. the height h (in feet) of the rock after t sec is given by h = −16t^2 + 144.a) what is the initial height of the rock? b) when is the rock 80 ft above the water? c) how long does it take the rock to hit the water?

How to write 3 tenths and 5 tenths as a decimal

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

An episode of a television show is 60 minutes long when it originally airs with commercials. on a dvd without commercials, the episode is only 417 minutes long. how many1-minute commercials did the episode include when it originally aired? write and solve an equation to justify your answer.