Given: q = 7m + 3n, r = 11 - 2m, s = n + 5, and t = -m - 3n + 8.
simplify r - s + t.
m - 2n - 2
-m + 2n - 2
3m - 4n + 14
-3m - 4n + 14

Solve the inequaliy: (x^2+2)(x−2)^2(6−2x)> 0

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?

Acentral angle measuring 160 degrees intercepts an arc in a circle whose radius is 4. what is the length of the arc the circle formed by this central angle? round the length of the arc to the nearest hundredth of a unit. a) 4.19 units b) 6.28 units c) 12.57 units d) 12.57 square units