What is the discriminant of the quadratic equation 0 = –x2 + 4x – 2?

–4
8
12
24

One expression below in undefined, and the other expression has a well defined value. which expression is undefined and explain why it has no value. which expression is defined? what is the value of that expression and how do you know? what is a different expression using a trig inverse function that is also undefined?

The function below show how much jayna and hannah charge for babysitting. which statement best compares the two plants?

Sara has 2 2/3 cup taco meat. she needs 1/6 cup to make one taco. how many tacos can sara make with the taco meat she has?