Tony calculates that 3 cubic metres of concrete is enough for the path. He decides to use a concrete mix which has:

cement = 1 part

sand = 2 parts

gravel = 3 parts

How many cubic metres of gravel does Tony need?

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Select the graph of the solution. click until the correct graph appears. |x| = 3

What is the distance between a and b? round your answer to the nearest tenth. a coordinate plane is shown. point a is located at negative 1, 5, and point b is located at 4, 1. a line segment connects the two points.