why is so helpful and amazing? I have to have math in is soo what's 1+1? cause it's totally not 2

Find the value of the cosine for angle a

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.

Paul’s car is 18 feet long. he is making a model of his car that is 1/6 the actual size. what is the length of the model?