Raul is performing an experiment. He pours water into a glass and measures the temperature of the water at 72.3" Then he adds a few Ice tubes to the glass of water. He measures the temperature of the water again and finds that it has changed by -39.15
Complete the steps below to learn more about the temperature change of the water

Part C rearrange the expression 72.3 + (-39.1) using the commutative property so the terms with the same place value are next to each other

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

Four airplanes carrying a total of 400 passengersarrive at the detroit airport. the airplanes carry, respectively,50, 80, 110, and 160 passengers.a) one of the 400 passengers is selected uniformly at random.let x denote the number of passengers that were on theairplane carrying the randomly selected passenger. find var(x)for x as given in the problemb) one of the 4 airplane drivers is also selected uniformly atrandom. let y denote the number of passengers on the chosen driver’s airplane. find var(y) for y as given in the problem

Hundred and tens tables to make 430 in five different ways