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-BARSIC- [3]
3 years ago
12

What is the center or a circle represented by the equation (x+9)2 + (y-6)2 = 10 to the power of 2

Mathematics
1 answer:
m_a_m_a [10]3 years ago
4 0

Answer:

(-9,6)

Step-by-step explanation:

The general equation of a circle is given as:

x²+y²+2gx+2fy+c = 0

The centre of the circle is (-g,-f)

Given the equation of the circle

(x+9)² + (y-6)² = 10²

First we need to expand and write it in the general form. On expansion:

x²+18x+81+y²-12y+36 = 100

Collecting like terms

x²+y²+18x-12y+81+36-100 = 0

x²+y²+18x-12y+17 = 0

Comparing to the general equation

2gx = 18x

g = 9

2fy = -12

f = -6

The center of the circle = (-g, -f)

= (-9,-(-6))

= (-9, 6)

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They are called respondents because they took part in a survey or poll about the performance of the computer they bought a month ago. Statistically, not everyone that got the mail took part in the poll, those ones are called non respondents, while the ones that took part in the survey are known as respondents.

4 0
3 years ago
Can you help me?<br> Find the h <br> Find h
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Answer:

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Step-by-step explanation:

according to Pythagorean theorem

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8 0
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Step-by-step explanation:

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