1. Is each volume greater than 2.5 liters?

In the 30-60-90 triangle below side s has a length of and side r has a length

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

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)