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In a sequence defined by a_n = 3n + 1, what is the value of a_7? (2023)
In a sequence defined by a_n = 3n + 1, what is the value of a_7? (2023)
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In a sequence defined by a_n = 3n + 1, what is the value of a_7? (2023)
22
21
20
19
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a_7 = 3(7) + 1 = 21 + 1 = 22.
Questions & Step-by-step Solutions
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Q: In a sequence defined by a_n = 3n + 1, what is the value of a_7? (2023)
Solution:
a_7 = 3(7) + 1 = 21 + 1 = 22.
Steps: 5
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Step 1: Identify the formula for the sequence, which is a_n = 3n + 1.
Step 2: Substitute n with 7 in the formula to find a_7.
Step 3: Calculate 3 times 7, which is 21.
Step 4: Add 1 to the result from Step 3. So, 21 + 1 equals 22.
Step 5: Conclude that a_7 is equal to 22.
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