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Hitman42 [59]
3 years ago
6

The equation for the circle is: x2+y2+4x+2y−56=0 . What is the center of the circle? Enter your answer by filling in the boxes.

Mathematics
2 answers:
LuckyWell [14K]3 years ago
8 0

Answer:

Center: (−2,−1)

Step-by-step explanation:

( use math

way )

IrinaVladis [17]3 years ago
7 0

Answer:

Step-by-step explanation:

It's x=7.1 plus 22

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Determine whether f(x)=-4(x+3)^2-5 has a maximum or a minimum value, then find that value
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Answer:

Yes it has

Step-by-step explanation:

From my perspective.........

f(x) = -4(x + 3)² - 5

f(x) = -4(x + 3)(x + 3) - 5

f(x) = -4(x² + 6x + 9) - 5

f(x) = -4x² - 24x - 36 - 5

f(x) = -4x² - 24x - 41

Dy/dx = -8x - 24

At minimum Dy/dx = 0

-8x - 24 = 0

-8x = 24

x = 24/-8

x = -3

At minimum

y = -4x² - 24x - 41

y = -4(-3)² - 24(-3) - 41

y = -4(9) + 72 - 41

y = -36 + 72 - 41

y = 36 - 41

y = -5

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3 years ago
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