There is only one solution in the given equation -y2 − [-5y − y(-7y − 9)] − [-y (15y + 4)] = 0. In solving this problem, apply first PEMDAS (parenthesis, exponents,multiplication, division, addition, subtraction). Then equation will transform into -y2+5y-7y2-9y+15y2+4y=0. Combine terms with same power and achieve 7y2=0. Divide both sides with 7 and perform square root of zero. Since the root is zero, we have one solution of the given equation which is y=0.
It’s the first one bc if u add -3 to the input it gives the outputs
It would take 1.5 seconds for the diver standing on a spring board 24 feet above the pool to hit the water.
<h3>What is an
equation?</h3>
An equation is an expression that shows the relationship between two or more numbers and variables.
Given that d represent the height of the diver above the water and t is the time in seconds.
d(t) = -16(2t - 3)(t + 1)
The diver hit the water at d(t) = 0, hence:
0 = -16(2t - 3)(t + 1)
2t - 3 = 0; or t + 1 = 0
t = 1.5 seconds
It would take 1.5 seconds for the diver standing on a spring board 24 feet above the pool to hit the water.
Find out more on equation at: brainly.com/question/2972832
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