Find the appropriate minimum sample size. you want to be 99% confident that the sample standard deviation s is within 5% of the population standard deviation

Suppose a ball is dropped fromca height of 6ft. it bounces back up but time it bounces, it reaches only 7/10 of its pervious height. what is the total of each height that the ball reaches after 5 bounces

Factor this polynomial completely x^2-64

The base of a triangle exceeds the height by 7 centimeters. if the area is 400 square centimeters, find the length of the base and the height of the triangle.