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VladimirAG [237]
2 years ago
9

Point A is located at (3,-6) and point A is located at (1-2). What is the scale factor?

Mathematics
1 answer:
Anuta_ua [19.1K]2 years ago
4 0

Answer:

The scale factor is 3.

Step-by-step explanation:

Let the origin O(0,0) is the reference point and the coordinates of the point A are given by (3,-6).

Therefore, the distance OA is given by \sqrt{(3 - 0)^{2} + (- 6 - 0)^{2}} = 3\sqrt{5} units.

Again, the coordinates of point A' are (1,-2).

Therefore, the distance OA' is given by \sqrt{(1 - 0)^{2} + (- 2 - 0)^{2}} = \sqrt{5} units.

Hence, the scale factor is \frac{OA}{OA'} = \frac{3\sqrt{5} }{\sqrt{5}} = 3. (Answer)

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Karla can ride 12 rides.

Step-by-step explanation:

39-15=24

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Blababa [14]

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Step-by-step explanation:

From the problem statement, we can set up the following two equations:

K + N = 30

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We can substitute the first equation into the second and solve for K

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5 0
2 years ago
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PolarNik [594]

Answer:

-5m^2+7m+8

Step-by-step explanation:

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In order to add up the 2 polynomials shown, we have to see the "like terms" and add them up.

We add up the "m^2" terms and the constant (number) terms. There is one term with "m", so we leave it like that. Let's add up. Shown below:\

[-m^2 + 6]+[-4m^2 +7m + 2]\\=-m^2-4m^2+6+2+7m\\=-5m^2+7m+8

This is the sum of the 2 polynomials shown:  -5m^2+7m+8

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3 years ago
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aleksklad [387]
The correct answer is
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2 years ago
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