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Mathematics 17 Online
OpenStudy (anonymous):

What is the slope of the line that is perpendicular to the line whose equation is 3x +2y = 9?

OpenStudy (luigi0210):

Well first solve the equation: 2y=-3x+9 y=-3/2x+9/2 Perpendicular slope is the negative reciprocal: the negative reciprocal is: 2/3

OpenStudy (anonymous):

Thank you so very much !!

OpenStudy (luigi0210):

You are very welcome :P

OpenStudy (anonymous):

How many three digit numbers have only even digits?

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