determinant: 
(a) 
D<0 means there are no real roots. there are two complex roots with imaginary components.
(b) D=16+20=36>0
D>0 means there are two real roots
(c) D = 20^2-4*4*25 = 0
D=0 means there is one real root with multiplicity 2
Answer:
sure i gotchu
Step-by-step explanation:
3/2
its just counting
Answer:
proved
Step-by-step explanation:
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Answer:
The total number of students in Toby's grade is 200.