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3 years ago

How do you find the scale factor of a dilation?

Mathematics

2 answers:

Stolb23 [73]3 years ago

5 0

9514 1404 393

Answer:

scale factor = (image distance)/(pre-image distance)

Step-by-step explanation:

The scale factor from a pre-image to an image is the ratio of some linear measurement of the image to the corresponding linear measurement of the pre-image:

scale factor = (image distance)/(pre-image distance)

The corresponding measurements can be measurements of side length, arc length, diameter, circumference, perimeter, chord length, or the length of any point on the image to the center of dilation (if known). The only requirement is that corresponding measurements be used, and that they be linear dimensions, not areas or volumes or angles (or anything else with units other than distance units).

lys-0071 [83]3 years ago

4 0

Answer:

To find the scale factor for a dilation, we find the center point of dilation and measure the distance from this center point to a point on the preimage and also the distance from the center point to a point on the image. The ratio of these distances gives us the scale factor

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Seth's father is thinking of buying his son a summer movie pass for $30 dollars. With the pass, matiness cost $4 each.

PilotLPTM [1.2K]

Answer:

Seth saved $90.

Step-by-step explanation:

1.Find out how much would be spent without buying the movie pass.

Multiply the amount of money that one would spend for each movie, by the number of movies one saw.

8 * 30 = 240

2.Find out the amount that was actually spent

Multiply the amount that was actually spent on each movie, by the number of movies that were seen. Then add the additional cost of the pass.

(4 * 30) + 30

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= 150

3. Find the difference between the two values.

Subtract the amount that one was supposed to spend by the amount one did spend.

240 - 150

= 90

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3 years ago

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Alecsey [184]

Answer: The graph on bottom right

Step-by-step explanation:

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The surface area (SA) of a cube with a as the length of each of its sides is given by the formula SA=6a^2 If the surface area is

slava [35]

So to rewrite it so that we can find the side, we just need to isolate the a variable.

$SA=6a^2$

So firstly, divide by 6 on both sides of the equation: $\frac{SA}{6} =a^2$

Next, square root each side, and your answer should be $\sqrt{\frac{SA}{6}} =a$

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andrezito [222]

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Step-by-step explanation:

espero te sirva

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Lady bird [3.3K]

To find the median, first arrange from least to greatest.

11 , 13 , 17 , 19 , 19 ,23

The median is now between 17 and 19 which is 18.

Ur answer is C)

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3 years ago