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hram777 [196]
3 years ago
14

Complete the square to rewrite the following equation. Identify the center and radius of the circle. You must show all work and

calculations to receive credit.
x2 + 2x + y2 + 4y = 20
Mathematics
1 answer:
timurjin [86]3 years ago
5 0

Answer:

311333

Step-by-step explanation:

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Nostrana [21]

Answer:

3^5

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Which equation represents y = −x2 + 6x + 7 in vertex form? y = −(x + 3)2 + 4 y = −(x − 3)2 + 10 y = −(x + 3)2 + 2 y = −(x − 3)2
Colt1911 [192]

\text{The vertex form:}\ y=a(x-h)^2+k\\\\f(x)=ax^2+bx+c\to h=\dfrac{-b}{2a},\ k=f(h)\\\\\text{We have}\ y=-x^2+6x+7\to f(x)=-x^2+6x+7\\\\a=-1,\ b=6,\ c=7\\\\h=\dfrac{-6}{2(-1)}=\dfrac{-6}{-2}=3\\\\k=f(3)=-3^2+6(3)+7=-9+18+7=16\\\\Answer:\ \boxed{y=-(x-3)^2+16}

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Tommy the Dunker's performance on the basketball court is influenced by his state of mind: If he scores, he is twice as likely t
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Probability of of winning next shot if he scores= 0.5

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3 years ago
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