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What is a number 2 comb? If our day went two times faster, then there would be 12 hours in a day, 30minutes in an hour, and 30 seconds in a minute. Is this true? Find the slope of the tangent line to the curve y = x/(1-x) at the point (.5,1). Find the equation of that tangent line.? If you're given 2 system of equations that are planes, and you are given a point, how to find equation of line perpendicular to given? The height at which the acceleration due to gravity becomes g/9. in terms of r, radius of the earth is?