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If a sequence is defined by a_n = 2n + 3, what is a_5?
If a sequence is defined by a_n = 2n + 3, what is a_5?
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Q1
If a sequence is defined by a_n = 2n + 3, what is a_5?
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a_5 = 2(5) + 3 = 13.
Questions & Step-by-step Solutions
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Q
Q: If a sequence is defined by a_n = 2n + 3, what is a_5?
Solution:
a_5 = 2(5) + 3 = 13.
Steps: 5
Show Steps
Step 1: Identify the formula for the sequence, which is a_n = 2n + 3.
Step 2: Substitute n with 5 in the formula to find a_5.
Step 3: Calculate 2 times 5, which is 10.
Step 4: Add 3 to the result from Step 3. So, 10 + 3 equals 13.
Step 5: Therefore, a_5 is 13.
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