I will give you Brainiest if you are right.

Two sides of a triangle mesure 20cm and 30cm. what is the measure of the third side

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)