1 3xy-2 is not, because the exponent is -2 (exponents can only be 0,1,2,...). 2  2/(x+2) is not, because dividing by a variable is not allowed. 3  1/x is not either. â 4 x is not, because the exponent is Â½ (see fractional exponents).
There are 0.0648524 milliliter in a drop. 1 Drop is equal to 0.0648524 Milliliter. 1 drop = 0.0648524 mL. Used very commonly in medicine and cooking, a drop is a unit of volume defined as the volume of a liquid in one drop. It has been used since the 19th century and is considered one of the most roughly specified units of volume. Undoubtedly, the volume of a drop depends on the method or device used for producing drops.
One meter is a little more than three English feet, or about 39.37 inches. One foot is approximately 0.3048 meter. There are about 1609 meters in a statute mile. The official span was at one time formally defined as the separation between two scratches on a platinum bar in Paris.This was, of course, intended mainly for show, and not for use in the laboratory.ne foot is approximately 0.3048 meter. There are about 1609 meters in a statute mile. The official span was at one time formally defined as the separation between two scratches on a platinum bar in Paris.