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andre [41]
3 years ago
5

How do you write the algebraic notation when the scale factor is 3 ​

Mathematics
1 answer:
Alja [10]3 years ago
3 0

Answer:

(x,y) = (3x,3y)

Step-by-step explanation:

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One angle of a triangle has a measure of 66. The measure of the third angle is 57 more than half the measure of the second angle
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So let's say that the second angle is x.

Then we can say that the third angle is \frac{1}{2}x+57.

So then we have three angles:

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So then we can add these together and solve for x by setting it equal to the total degrees left in the triangle after subtracting the known angle:

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\frac{2}{3}*\frac{3}{2}x=57*\frac{2}{3}

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So now we know that the measure of the second angle is 38°. So then we can use this value to solve for the third angle:

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