1. What are the next three terms in the sequence?-1 ,9 ,19 ,29 . . .
A. 38, 37, 32
B. 40, 51, 62
C. 39, 49 , 59
D. 38, 47, 562.
What are the next three terms of the sequence?4, 8, 12, 16, ...
A. 20,24,30
B. 20,24,38
C. 20,22,26
D. 18,21,25
Answer:
1. 39, 49, 59 Option C
2. 20, 24, 28
Step-by-step explanation:
1.
-1, 9, 19, 29...
We will find the common difference.
d = 9 - (-1) = 19 - 9 = 10
So, we add 10 to find the next term.
-1, 9, 19, 29, (29+10), (29+10+10), (29+10+10+10)
-1, 9, 19, 29, 39, 49, 59
2.
4, 8, 12, 16, ...
We will find the common difference.
d = 8 - 4 = 12 - 8 = 4
So, we add 10 to find the next term.
4, 8, 12, 16, (16+4), (16+4+4), (16+4+4+4)
4, 8, 12, 16, 20, 24, 28
that's the final answer.