2.2x + 3y = 15.25
4.6x + 2.1y = 18.325
Solve using the elimination method

Which shows how to solve the equation 3/4x=6 for x in one step?

According to a study done by de anza students, the height for asian adult males is normally distributed with an average of 66 inches and a standard deviation of 2.5 inches. suppose one asian adult male is randomly chosen. let x = height of the individual. a) give the distribution of x. x ~ b) find the probability that the person is between 64 and 69 inches. write the probability statement. what is the probability?

What are the triple angle formulas? is it related to double angle identities?