Simplify | -3.9 | + | 3.9 | a. -7.8 b. 0 c. 7.8 d. 8

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.

The length of the line segment ac is 8x-9 what is the value of x

If the probability of an event happening is 65% then the probability this event does not occur?