Select all expressions that result in a rational number. 6 4/5 + √9/4
6 4/5 x √9/4
6 4/5 ÷ √5/7
6 4/5 x √5
6 4/5 - √5/7

Describe the possible echelon forms of the standard matrix for a linear transformation t where t: set of real numbers is onto.

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?