What is 89999999+ 3099999999999=

Write numerical coefficient of y² in the expression 2x² - 15xy – 7y²

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.

In which form is the following function written? y = - 2(x – 3)(x + 5)