Answer:
3n -4
Step-by-step explanation:
We are adding 3 each time
-1+3 =2
2+3 = 5
The formula for an arithmetic sequence is
an = a1+d(n-1) where a1 is the first term and d is the common difference
an = -1+3(n-1)
= -1 +3n -3
= 3n -4
This could be done in two ways. If the first number is 4, then you could add 4 with -16. 4 + (-16) is -12. But it could also be -16 + 4, which still equals to -12.
But in the end, your answer is the same : -16 is the other number.
Answer:
Heidi hass really kong hair and should cut it
