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lisov135 [29]
3 years ago
8

What is 1/2 y − 5 =−7

Mathematics
1 answer:
alexgriva [62]3 years ago
4 0

Answer:

=-4

Step-by-step explanation:

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The similar circles P and Q can be made equal by dilation and translation

  • The horizontal distance between the center of circles P and Q is 11.70 units
  • The scale factor of dilation from circle P to Q is 2.5

<h3>The horizontal distance between their centers?</h3>

From the figure, we have the centers to be:

P = (-5,4)

Q = (6,8)

The distance is then calculated using:

d = √(x2 - x1)^2 + (y2 - y1)^2

So, we have:

d = √(6 + 5)^2 + (8 - 4)^2

Evaluate the sum

d = √137

Evaluate the root

d = 11.70

Hence, the horizontal distance between the center of circles P and Q is 11.70 units

<h3>The scale factor of dilation from circle P to Q</h3>

We have their radius to be:

P = 2

Q = 5

Divide the radius of Q by P to determine the scale factor (k)

k = Q/P

k = 5/2

k = 2.5

Hence, the scale factor of dilation from circle P to Q is 2.5

Read more about dilation at:

brainly.com/question/3457976

8 0
2 years ago
Simplfy <br> -3+(-10) <br> please explain how to do it too because i am lost in algebra.
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Answer:
-13

you're basically adding -3 and -10 because they're both negatives
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Dovator [93]

Answer: I really don't know how to do this sorry

Step-by-step explanation:

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3 years ago
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