Ireally need . it's pythagorean theorem and i don't understand how to do this question. two trains left metropolis at the same time. one traveled south at 50mph. the other traveled east at 40mph. how far apart were the trains at the end of three hours?

What term best describes a line and a point that lie in the same plane? a. congruent b. coplanar c. collinear d. equal

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)

Solve the equation by completing the square. x^2+2x=17