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.
1 One dram is equal to 1/8 of an ounce, or 3.697 milliliters. 2  Ounce (fl. oz.): Fluid ounces are used in the Engish measurement system to measure units of liquid volume. 3  One fluid ounce is equal to 1/8 of a cup, or 29.574 milliliters. One fluid ounce is equal to 1/8 of a cup, or 29.574 milliliters. 2  Drop: Actual drop sizes can vary significantly, depending on the thickness of the oil and the size of the dropper. 3  For purposes of this chart we are using the pharmaceutical standard drop, or 0.05 mililiters.