-10x - 8y = -10 ; 2x + y = 8

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.

How can you find the magnitude of a vector, v = < x,y > , where the horizontal change is x and the vertical change is y?

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.