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kati45 [8]
3 years ago
14

What is the center of the circle and radius defined by the following equation? x2+y2+4y=5

Mathematics
1 answer:
vovangra [49]3 years ago
7 0

Answer:

Step-by-step explanation:

Alternate forms:

x^2 + y (y + 4) = 5

x^2 + y^2 + 4 y - 5 = 0

Solutions:

y = -sqrt(9 - x^2) - 2

y = sqrt(9 - x^2) - 2

Integer solutions:

x = ± 3, y = -2

x = 0, y = -5

x = 0, y = 1

Implicit derivatives:

(dx(y))/(dy) = -(2 + y)/x

(dy(x))/(dx) = -x/(2 + y)

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3 years ago
Can someone help me with this please?
Elena-2011 [213]
29.) This is simply interpreting the linear function.
The function:
96+2.1x
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6 0
3 years ago
3x + 5 - x = 9x - 7 + 12
Iteru [2.4K]

Answer:Combine like terms

3

+

5

−

=

9

−

7

+

1

2

{\color{#c92786}{3x}}+5{\color{#c92786}{-x}}=9x-7+12

3x+5−x=9x−7+12

2

+

5

=

9

−

7

+

1

2

{\color{#c92786}{2x}}+5=9x-7+12

2x+5=9x−7+12

2

Add the numbers

3

Subtract the same term from both sides of the equation

4

Simplify

5

Subtract the same term from both sides of the equation

6

Simplify

7

Divide both sides of the equation by the same term

8

Simplify

HOPE THIS HELPS :)

Step-by-step explanation:

4 0
3 years ago
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