X^7+5x+9 what is f(-1) for the polynomial

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

Find the amplitude of a sinusoidal function that models this temperature variation

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.