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Mademuasel [1]
3 years ago
13

Find the locus of the point (x,y) which is a distance 3 from the point (-2, 1)

Mathematics
1 answer:
Reptile [31]3 years ago
6 0
Consider this option:
1. rule: Circle is the locus of the points which are on the same distance from the given point. Common view of the equation is: (x-a)²+(y-b)²=r², where r - the distance from the given point to the described locus, a&b - coordinates of the given point.
2. using item 1:
(x+2)²+(y-1)²=3² or (x+2)²+(y-1)²=9.
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What is the value of the expression? 8 x (-4.8) divided by (-4)
valentina_108 [34]
The answer is D.9.6. This is because you multiply 8 x (-4.8)= -38.4 and since you divided it by another negative it becomes positive. Hope this helped.
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3 years ago
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What is 7a + 1 = 8a - (a - 1)​
leva [86]

Answer: all real numbers

Step-by-step explanation:

7a + 1 = 8a - a + 1

7a + 1 = 7a + 1

a = all real numbers

5 0
3 years ago
The equations in this sytem were added to solve for x. What is the value of x?
Valentin [98]

9514 1404 393

Answer:

  (d)  x = 2

Step-by-step explanation:

Adding the two equations gives ...

  (-8x +8y) +(3x -8y) = (8) +(-18)

  -5x = -10 . . . . . sum of the two equations

  x = 2 . . . . . . . . result of dividing by -5

8 0
3 years ago
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tatyana61 [14]
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4 0
2 years ago
An image point has coordinates B'(5, -6). Find the coordinates of its pre-image if the translation used was (x - 4, y + 5).
Shtirlitz [24]
Here, Translation factor: (x, y) → (x-4, y+5)

Coordinates of Image = B'(5, -6)

So, x-coordinate of point = x-4 = 5, x = 9
y-coordinate of point = y+5 = -6, y = -11

In short, Your Answer would be: Option B) (9, -11)

Hope this helps!
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3 years ago
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