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find the first four terms of a geometric sequence with the following explicit formula: an = 3 n-1

The first four terms are 1,3,9,27

Step-by-step explanation:

The explicit formula for the sequence is

To find the first term of the sequence, we substitute

To find the second term of the sequence, we substitute

To find the third term of the sequence, we substitute

To find the fourth term of the sequence, we substitute

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.

the answer is ! ?