The number of shoes a group of college students own is approximately Normally distributed with a mean of 22.1 and a standard deviation of 6.3. About what proportion of the students own between 20 and 30 pairs of shoes? Use a graphing calculator to find the answer. 0.1049
0.3694
0.4744
0.5256
0.8951

The higher the astm grain size number, the finer the gran is. a)-true b)-false

Asolid cylinder is concentric with a straight pipe. the cylinder is 0.5 m long and has an outside diameter of 8 cm. the pipe has an inside diameter of 8.5 cm. the annulus between the cylinder ad the pipe contains stationary oil. the oil has a specific gravity of 0.92 and a kinematic viscosity of 5.57 x 10-4 m2/s. most nearly, what is the force needed to move the cylinder along the pipe at a constant velocity of 1 m/s?

How to increase the thermal officiency of an ideal simple rankino cycle? among these methods, which one is the best and why?