These are the answers:
1 D
2 B
Answer:
6
Step-by-step explanation:
Answer:
A= -1, B = -8, C = -6
Step-by-step explanation:
4x + 2x + 2
= 6x + 2
So the answer is B
Answer:

Step-by-step explanation:
Notice that the series: 1 - 3 + 9 - 27 +... clearly has powers of the factor 3 in its terms and it is also an alternate series (the terms alternate from positive to negative). The terms are positive for
(even terms) , while the odd terms
are negative. (so most likely there should be a factor (-1) in the common ratio.
We can then represent it with the following summation expression:
given that each of its first four terms are:
