Answer:
Yes this is an arithmetic sequence.
Step-by-step explanation:
12 , 6 , 0 , -6, -12
Difference = 2nd term - first term = 6 - 16 = -6
It is an arithmetic sequence and each term is got by adding (-6)
Answer:
The third option x2 + 2x- 4
Step-by-step explanation:
Total distance = flat road + downhill + uphill
x + (x^2 + 3) + (x -7) = x + x^2 + 3 + x - 7 = x^2 + 2x - 4
Hope that helps!
(5y+6y)+(4x+8y)+(1z-5y)=
5y+6y+4x+8y+1z-5y=
14y+4x+1z
Melissa combined unlike terms
