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2 years ago

Triangle ABC is transformed with the center of dilation at the origin.

1 answer:

6 0

Dilation is a transformation that maps an object to an image by stretching or diminishing it but retaining the original shape. It is described by stating the center of dilation and the dilation scale factor.
Dilation scale factor is given by dividing the coordinate of the image with the corresponding coordinate of the object.
In this case, if we consider A and A' then; k(-5,-4) = (-3.75, -3)
Thus, -5k = -3.75 or -4k = -3
k = 3/4
Hence the scale factor of dilation is 3/4

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3 years ago

If a starting number is 30 and it falls to 11 what % decrease is that?

jonny [76]

Answer:

The question would've given you to what number you should round up your answer.

Answer is:

Whole number:

63%

1 decimal place:

63.3%

2 decimal places:

63.33%

Exact number:

$\frac{190}{3}$ %

Step-by-step explanation:

So the starting no. = 30

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In order to evaluate the percentage of decrease we:

(Ending number/starting number) * 100

So:

$\frac{11}{30} *100 = \frac{11}{3} *10 = \frac{110}{3}%$ %

To find the Decrease percentage:

100 % - 110/3 %

= 63.333%

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2 years ago

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Virty [35]

Answer:

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Step-by-step explanation:

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3 years ago

Triangle ABC ​is transformed with the center of dilation at the origin.

Triangle ABC is transformed with the center of dilation at the origin.