Alab group measured the thickness of 500 sheets of copy paper to be 5.15 cm. based on this measurement the thickness of one sheet of paper should be recorded as:

The thickness of one sheet of paper should be recorded as: 0.0103 cm

Step-by-step explanation:

This problem can be solved applying a direct rule of three:

If  500 sheets have a thickness of 5.15 cm

   1  sheet will have a thickness of   X cm

X= (1 * 5.15) / 500

X= 0.0103 cm

correct answer is b. 27/8

step-by-step explanation:

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.