Asked by Risotto Nero

Write the arithmetic sequence that has four arithmetic means between -20 and 20.
Answered by oobleck
-20 and 20 are 40 apart
divide that 40 into 5 equal parts
start adding at -20 ...
Answered by Risotto Nero
40/5= 8 so it would be 8?
Answered by oobleck
that is the common difference, yes.
Use it to fill in the missing four terms.
Answered by Risotto Nero
it would be -12,-4,4,12?
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