It reveals whether the answers will be negative, and how many solutions the equation will have.
Answer:I’m trying to find it too
Step-by-step explanation:I don’t know what it is but I’m sure it’s 12-90
Answer:
see the attachment photo!
Answer:
75.7m^2
Step-by-step explanation:

(a,1)(a,2)(a,3)(a,4)(b,1)(b,2)(b,3)(b,4)