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djyliett [7]
3 years ago
12

The scale on a map that 5 centimeters = 2 kilometers

Mathematics
1 answer:
spin [16.1K]3 years ago
3 0
So that is what we call a ratio and it looks like this
\frac{5cm}{2km} \\
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Circle 1 is centered at (−4, 5) and has a radius of 2 centimeters. Circle 2 is centered at (2, 1) and has a radius of 6 centimet
IgorC [24]
Basically, you have two circles. You are asked to take circle 1 and "move it" so that it is on top of circle 2. This process of moving is called a translation and can be thought of as sliding. You do this by ensuring that the two have the same center. So, starting at (-4,5) how do you have to move to end up at (2,1)?

To do this we need to move right 6 as the x-coordinate goes from -4 to 2. We also need to move down 4 as the y-coordinate goes from 5 to 1. So we add 6 to the x-coordinate and subtract 4 from the y-coordinate. The transformation rule is (x+6, y-4).

Once you do this the circles have the same center. Next you wish to dilate circle 1 so it ends up being the same size at circle 2. That means you stretch it out in such a way that it keeps its shape. Circle 1 has a radius of 2 centimeters and circle 2 has a radius of 6 centimeters. That is 3x bigger. So we dilate by a factor of 3.

Translations and dilations (along with reflections and rotations) belong to a group known as transformations.
3 0
3 years ago
Is this true? And also how does the equation from y-3=3(x-4) become a positive <br> y+3=3x-12?
EastWind [94]

Step-by-step explanation:

the right equation is :

y-y1=m(x-x1)

y+3=3(x+4)

y+3= 3x+12

y=3x+12-3

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7 0
3 years ago
How do you find the mean, median and range​
astra-53 [7]

for mean you add every number and divide it by the amount of numbers in the data set

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range is basically the lowest and highest number

5 0
3 years ago
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Gabriel uses 1.68 gallons in 4.2 hours.
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3 years ago
20 POINTS: Find the surface area of the figure. Round to the nearest hundredth if necessary.
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385.6 square feet is the answer
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3 years ago
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