There is a sale at Barnes and Noble. Everything is 20% off! Mrs. Fink found a fantastic book for $29.95. How much money will Mrs. Fink save on the book?

Find parametric equations for the line. (enter your answers as a comma-separated list of equations. let x, y, and z be functions of t.) the line in the direction of the vector 5 i + 5 j − 6k and through the point (−4, 4, −2).

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0