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.
TDS refers to the total amount of substances in the water other than the pure H2O. The only true way of measuring TDS is to evaporate the water and weigh whatâs left. Since this is near impossible to do for the average person, is it possible to estimate the TDS level by measuring the EC of the water.Every digital TDS meter in the world is actually an EC meter.he only true way of measuring TDS is to evaporate the water and weigh whatâs left. Since this is near impossible to do for the average person, is it possible to estimate the TDS level by measuring the EC of the water. Every digital TDS meter in the world is actually an EC meter.