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polet [3.4K]
3 years ago
8

2. The equation of a circle is x^2 + 2x + y^2 + 6y = 0.

Mathematics
1 answer:
pentagon [3]3 years ago
8 0
Answer:

a)
{x}^{2}  + 2x +  {y}^{2}  + 6y = 0
{x}^{2}  + 2x + 1 +  {y}^{2}  + 6y + 9 = 10
{(x + 1)}^{2}  +  {(y + 3)}^{2}  = 10
b)
center I(-1;-3)

radius = \sqrt{10}
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I believe this should be right

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Find the two correct values of x in the equation 3x² = y when y = 75.​
valentina_108 [34]

Answer:

5 and -5

Step-by-step explanation:

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3 0
2 years ago
The variable x is twice the value of the variable y and the sum of x and y is 42 solve for x and y.
Oksi-84 [34.3K]

Write two equations with the given information:

1) x = 2y ( x is twice the value of y)

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Replace x in the second equation with the value of x in the first equation:

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4 0
3 years ago
Read 2 more answers
Find the greatest common factor of these three expressions.
leva [86]
6x

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7, 8, 9, 10, and 11 are all not divisible by 12, and 12 is not divisible by 18, so 6 is the highest number.

Also, each number has at least one x, so you can take one out.

Remaining=
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3 0
3 years ago
Two equations are given below:
ch4aika [34]
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3 years ago
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