4 years ago

If THE equation of a circle is (x + 5)2 + (y - 7)2 = 36, it’s center point is

Mathematics

1 answer:

Kay [80]4 years ago

3 0

Answer:

(-5,7) is the center

Step-by-step explanation:

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How many solutions does the equation 3x+6y-9=0 have

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4 years ago

Can someone help me find the inverse of this? Please show steps. :(<img src="https://tex.z-dn.net/?f=f%28x%29%3D%20%5Cfrac%7B1%7

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3 years ago

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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.

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To solve this quadratic equation we use the quadratic formula.

For an equation of the form:

$at^2 +bt +c$

The quadratic formula is:

$t=\frac{-b\±\sqrt{b^2 -4ac}}{2a}$

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Then

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Hope this helps :)))

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