Pedro was simplifying and his work is shown below. identify where he made his error. original problem: 4/7 divided by 5/8 step 1: 4/7 times 8/5 step 2: 4 x 5 7 x 8 step 3: 20/56 step 4: 5/14

The height of a flare fired from the deck of a ship in distress can be modeled by h(t)= -2(8t^2-52t-28), where h is the height of the flare above water and t is the time in seconds. a. find the time it takes the flare to hit the water.

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Solve this problem! extra ! 3025/5.5 = a/90.75 / = fraction