The volume of a sphere is given by v-(4/3)r where r is the radius. the density of magnesium is 1.74 g/cm what is the mass of a magnesium sphere with a radius of 0.80 cm? • v= x2 m= temperaure convertions show formulas used convert 38.0 °f 10 °c = 3.33 (38-32)x(5/6)=°c convert 23.5 °c 10 °f - 245 (22.5%6/5)+32=72.5°f spd.

According to the tide table below what time of day will the highest tide occur? (2 pt) the highest tide will occur at

The excretory system,need answers for all: )

Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.