Find (fg)x , if f(x)=x-1 and g(x)= x^2 -2x+1 * A. x^3 -2x^2 +2x -1
B. x^3 -3x^2 +3x -1
C. x^3 +3x^2 +3x -1
D. x^3 -3x^2 -3x -1

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Find the number of real number solutions for the equation. x2 + 5x + 7 = 0 0 cannot be determined 1 2

Abag contains 4 red, 7 blue and 5 yellow marbles. event a is defined as drawing a yellow marble on the first draw and event b is defined as drawing a blue marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/16 b. 7/15 c. 14/16 d. 14/15