What is the value of the 10th element in the sequence above?
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What is the value of the 10th element in the sequence above?
To solve this problem, let's work through these steps:
Now, let's proceed with each step:
Step 1: The sequence is defined by the expression .
Step 2: To find the 10th element, substitute into the expression:
.
Step 3: Carry out the calculation:
.
Step 4: Upon checking the possible answers, the calculated value matches option
Therefore, the value of the 10th element in the sequence is .
47
Is there a term-to-term rule for the sequence below?
18 , 22 , 26 , 30
The n represents the position of the term in the sequence. For the 10th term, n = 10. For the 5th term, n = 5, and so on.
The -3 is a constant that shifts every term down by 3. Without it, the sequence would be 5, 10, 15, 20... but with -3, it becomes 2, 7, 12, 17...
Yes! Just substitute the term position for n. Want the 20th term? Calculate . The formula works for any position.
Double-check your calculation: , then . Also verify your answer matches one of the given choices.
That's possible! For early terms where n is small, might give negative results. For example, when n = 0, we get .
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