What is the value of the discriminant, b^2-4ac, for the quadratic equation 0=x^2-4x+5, and what does it mean about the number of real solutions the equation has?

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

What is the probability of throwing several dice with sum equal to 6 (six)? show the ways of possibilities for sum 6 (as the numerator) and the ways of throwing n dices for n = 1, 2, 3, 4 or 5 as denominator for all the questions to earn full credits. (a)throw one die, (b) throw two dice, (c) throw three dice (d) throw 4 dice, (e) throw 5 dice

Solve the following pair of equations for x and y: ax/b_ by /a= a +b; ax - by = 2ab