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Hi, thank you for posting your question here at Brainly. Whatever the sequence is, the important thing is to follow the explicit rule. The n denoted in the equation must pertain to the 12th term. Hence,
A12 = -16 + 2(12)
A12 = 8
The 12th term is 8. I hope I was able to help. Have a good day.
-3×2= -6
-6-27= -33
so if we peak option B.
(-3x +91)(x+31)
solving it
-3x (x+31)+91(x+31)
-3x^2 -93x +91x +2821
we will take (-93x+91x)= -2x
so it's going to be
-3x^2 -2x +2821
this is a quadratic equation hence
2+/-√-2^2-(4×-3×2821)divided by 2×-3
2+/-√4+33852divide by -6
2+/-√33856 divide by -6
2+/- 184 divided by -6
2+/- 30.67
when you add you'll get
32.67
round it off and you get 33
which is the same as what we got at the top
so expression B is the same as
-3×2-27 which is 33
Answer:
20 coins
Step-by-step explanation:
697/17 = 41
820/41 = 20 coins