The sequence is, in fact, quadratic. It is described by the equation
.. a[n] = (n*(n -1))/2 +2
First differences are increasing, so the sequence will not be arithmetic. An arithmetic sequence has constant first differences.
Second differences are constant, so the sequence will not be geometric. A geometric sequence will have first-, second-, third-differences, and those to any level, that have the same constant ratio as the terms of the original sequence.
Answer
[ 1 by 2, -1 by 2 ]
Step-by-step explanation:
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4 miles and half because every 6 minutes Tiny runs 1 mile.
Answer:
don't know
Step-by-step explanation:
sorry buddy
Answer:
350
Step-by-step explanation:
40% of 250 is 100 (10% of 250 is 25 and 25 times 4 is 100)
250+100 is 350
