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Yuri [45]
3 years ago
6

HELP!!!!!!!!!!!!!!!!!!!!! !PLEASE SOLVE! y-63=1/2(x-64)

Mathematics
1 answer:
yarga [219]3 years ago
7 0
Y - 63 = 1/2 (x - 64)       (distribute 1/2)
y - 63 = 1/2x - 32          (add 63 to both sides)
y = 1/2x + 31                 (this is your answer)
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6 0
3 years ago
.
oksian1 [2.3K]

Answer:

t= 6\ s

Step-by-step explanation:

We know that the equation that models the height of the ball as a function of time is h(t) = -16t ^ 2 + 80t + 96.

Where the initial speed is 80 feet.

When the ball lands on the ground, its height will be h(t) = 0.

So to know how long it will take the ball to reach the ground, equal h (t) to zero and solve for t.

-16t ^ 2 + 80t + 96 = 0

To solve this quadratic equation we use the quadratic formula.

For an equation of the form:

at^2 +bt +c

The quadratic formula is:

t=\frac{-b\±\sqrt{b^2 -4ac}}{2a}

In this case

a =-16\\b = 80\\c =96

Then

t=\frac{-80\±\sqrt{80^2 -4(-16)(96)}}{2(-16)}

t_1=-1\\\\t_2=6

We take the positive solution

t= 6\ s

7 0
3 years ago
Read 2 more answers
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