Question 39190: Still need help. PLease if anyone can help, it would be very appreciated. Thank you.
1) Use the arithmetic sequence of numbers 2, 4, 6, 8, 10… to find the following:
a) What is d, the difference between any 2 terms?
Answer:
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b) Using the formula for the nth term of an arithmetic sequence, what is 101st term? Answer:
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c) Using the formula for the sum of an arithmetic series, what is the sum of the first 20 terms?
Answer:
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Answer by kathysmiles77777(4)   (Show Source):
You can put this solution on YOUR website! c.The value of the 20th term, i.e., when n=20, is found by using the general term: for a=3, d=4, and n=20, its value is 3+(20−1)4=79
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