Question

Which answer describes the sequence {1,3,7,15,…} as a mathematical statement? The nth value equals 1 more than twice the first value. The nth value equals 1 more than twice the previous value. The nth value equals the sum of the previous 3 values. The nth value equals 1 more than the sum of the previous value and n. Checkpoint 04 Click on the numbers to jump from one question to another.

Answer 1

Answer:

Step-by-step explanation:

Each new value is 1 plus twice the previous value.

First value is 1.  Then,

 1 plus twice 1 = 3, the second value.

Second value is 3

 1 plus twice 3 = 7, so

Third value is 7

and so on (this is merely a check)

Answer 2

Answer:

Step-by-step explanation:

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