Which of the following sets of numbers is a pythagorean triple? 42, 40, 82 42, 40, 58 41, 41, 58 40, 41, 57

Can someone pls ! pls answer all. no explanation needed..

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

What is the similarity ratio of a cube with volume 729m^3 to a cube with volume 3375 m^3