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NeTakaya
3 years ago
5

Write the standard equation of a circle that passes through (-2, 10) with center (-2, 6)

Mathematics
2 answers:
Stolb23 [73]3 years ago
7 0
Is it a graph??????????
kirill [66]3 years ago
4 0
By definition, the standard equation of the circle is given by:
 (x-xo) ^ 2 + (y-yo) ^ 2 = r ^ 2

 Where,
 (xo, yo): coordinates of the center of the circle
 r: radius of the circle
 To find the radius of the circle, we use the formula of distance between points.
 We have then:
 r=\sqrt{(x2-x1)^2+(y2-y1)^2}
 Substituting values:
 r=\sqrt{(-2-(-2))^2+(6-10)^2}
 r=\sqrt{(-2+2)^2+(-4)^2}
 r=\sqrt{(0)^2+16}
 r=\sqrt{(0+16}
 r=\sqrt{(16}
 r=4
 Then, the center of the circle is:
 (xo, yo) = (-2, 6)

 Substituting values in the general equation we have:
 (x-(-2))^2+(y-6)^2=4^2
 Rewriting:
 (x+2)^2+(y-6)^2=16
 Answer:
 
The standard equation of the circle is:
 
(x+2)^2+(y-6)^2=16
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the slope is

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Step-by-step explanation:

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Carlos has received a 9% salary increase. If he now earns $654 per week, what was his salary before the increase.?
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So let's say he was earring x before his raise. That means that:
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sveta [45]

Answer:

large = 18 3/4 = 18.75

small = 13/2 = 6 1/2 = 6.5

Step-by-step explanation:

Let l = the weight of large boxes

s = weight of small boxes

2 large and 3 small weights 57

2l+3s = 57

6 large and 5 small wights 145

6l+5s = 145

Multiply the first equation by 3

3(2l+3s) = 57*3

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Subtract the second equation

6l +9s =171

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-----------------------

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Divide each side by 4

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Divide by 4

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3 years ago
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