1/3log5 (x+1) +2log3 (x)-1/3log3 (8)

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

What is the radius of a circle with an area of 78.5 cubic inches? use 3.14 for pie

Assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.assume that adults have iq scores that are normally distributed with a mean of mu equals 100 and a standard deviation sigma equals 20. find the probability that a randomly selected adult has an iq between 80 and 120.