Answer:
hi I'm soooooo smart
Step-by-step explanation:
I'm smart
No solution / no x
D=b^2-4*a*c -> D=-4^2-4*1*21 -> D=-28 -> D<0, no solution
Answer:
112
Step-by-step explanation:
I am not 100% sure because I can't see information given on the shape, but assuming it is equal angles
Answer: A. -5/4
Step-by-step explanation: