The tensile strength of a certain type of wire is normally distributed with a mean of 84.5 and a standard deviation of 4.5. find the standard error of the mean of a sample of 64 wires.

a. 14.3
b. 5.3254439
c. 0.5625001
d. 0.0703126

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand

The solution set for 5v2 – 125 = 0 is

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?