Which rational expression is in simplified form?
a. (x^2-x-6)/(x^2+"3x+"2)
b. (x^2+6x+8)/(x^2+2x-3)
c. (x^2-6x+9)/(x^2-2x-3)
d. (x^2+3x-4)/(x^2+x-2)

According to the normal model, what percent of receivers would you expect to gain fewer yards than 2 standard deviations below the mean number of yards

For the quadratic function [tex]y=(x+4)^2-1[/tex] , do the following: a) rewrite the function in the standard form, b) rewrite the function in intercept form, c) find the vertex, d) find the y-intercept, e) find the x-intercepts.

A6 ounce bottle of dressing costs $1.56 a 14 ounce bottle costs $3.36 a 20 ounce bottle costs $5.60 which has the lowest cost per ounce