Parker throws a ball off the top of a building. the building is 350 feet high and the initial velocity of the ball is 30 feet per second. find out how long it will take the ball to hit the ground by solving the equation -16t2-30t+350=0

5.707

Step-by-step explanation:

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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