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DIA [1.3K]
2 years ago
5

How to find the center of the equation (x-7)²+(y-10)² = 121

Mathematics
1 answer:
grandymaker [24]2 years ago
3 0
Center is 7,10
Radius is 11
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The number used to divide is the
irina1246 [14]
Hello there!

The answer is the divider.

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6 0
3 years ago
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A circle passes through point (-2, -1) and its center is at (2, -1). Which equation represents the circle?
ludmilkaskok [199]

The choices are missing, but we can solve the problem from the given information

Answer:

The equation which represents the circle is (x - 2)² + (y + 1)² = 16

Step-by-step explanation:

The form of the equation of a circle is (x - h)² + (y - k)² = r², where

  • (h , k) are the coordinates of its center
  • r is the radius of it

∵ The coordinates of the center of the circle are (2 , -1)

∴ h = 2 and k = -1

The radius of the circle is the segment whose join the center of the circle and any point on the edge of the circle

∵ The circle passes through point (-2 , -1)

∴ The radius of the circle is the distance from the center (2 , -1)

    and the point (-2 , -1)

The y-coordinates of the two points are equal that means the radius is a horizontal segment and its length is the difference between their x-coordinates

∵ r = 2 - (-2)

∴ r = 4

Now let us substitute h, k, and r in the form of the equation of the circle

∵ (x - 2)² + (y - -1)² = (4)²

∴ (x - 2)² + (y + 1)² = 16

The equation which represents the circle is  (x - 2)² + (y + 1)² = 16

7 0
2 years ago
Omg pleaseee help whats 1+1???? im so confused ill mark you brainy
enyata [817]

Answer:

its 2

Step-by-step explanation:

1 + 1 equals 2............

6 0
3 years ago
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Matrix fractions 1/2+2/6. I don't understand the steps in this.​
Effectus [21]

Answer: 5/6

Step-by-step explanation:

You have to multiply the denominator and numerator by 3 to get the same denominato. Then you ONLY add the numerator. 3/6 + 2/6 = 5/6.

5 0
2 years ago
What is the value of x and y?
ladessa [460]

Answer:

x=16 and y=9

Step-by-step explanation:

2y+30=3y+21[Diagonals of parallelogram are equal]

30-21=3y-2y

y=9

3y=2x-5[Diagonals of parallelogram are equal]

3×9=2x-5

27=2x-5

2x=27+5

x=32/2=16

5 0
2 years ago
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