Low many solutions are there to this nonlinear system?
A. One solution
O
O
B. No solutions
O
C. Two solutions

Using only the digits 5, 6, 7, 8, how many different three digit numbers can be formed if no digit is repeated in a number?

What is the value of the discriminant, b2 ? 4ac, for the quadratic equation 0 = x2 ? 4x + 5, and what does it mean about the number of real solutions the equation has?

For the right triangle shown, the lengths of two sides are given. find the third side. leave your answer in simplified, radical form.