18. Which of the following triangles could be right triangles? Explain how you know.

Me solve this problem, and someone clearly explain to me how to solve it.1.) use the value of the discriminant to determine if the given trinomials has 2 real solutions, 1 real solution, or no real solutions.a.  x2  − 4x  − 7 = 0b. 4r2  + 11r  − 3 = 0c. 3m2  + 7 = 0d.  t2  + 2t  + 1 = 0

How much orange juice do you need to make 2 servings of lemony orange slush?

Pls never taught i’m really confused and i rlly need