I dont know what you mean but i devided 17 and 1569 and it =s 0.0108349267
C, her results are very close to one another
D=√(0.9²+2.5²)=2.65
The distance between two points is 2.65
I'm going to divide number one to 6 parts
1.

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2.

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3.

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4.

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5.

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6.

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because to make the denominator to 100, you need to multiply 10 by 10 which is 100.
and because you multiply 10, you also have to multiply the numerator by 10.
EXAMPLES:

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×

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Y=-x+2
2y=x-8
these two lines both go through the point (4,-2)
solve: substitute the y in the second equation with (-x+2):
2(-x+2)=x-8
-2x+4=x-8
add 2x on both sides:
4=3x-8
add 8 on both sides: 12=3x
divide by 3 on both sides: x=4.
find y: y=-x+2=-4+2=-2
the solution is (4,-2)