anonymous
  • anonymous
Please help!! Write the sum using summation notation, assuming the suggested pattern continues. -9 - 4 + 1 + 6 + ... + 66
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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anonymous
  • anonymous
so you start at -9 and roll to 66 at steps of 5
anonymous
  • anonymous
Ok. So would the answer be: summation of the quantity negative nine plus five n from n equals zero to infinity
anonymous
  • anonymous
\[\sum_{n=-9}^{\infty}\]

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More answers

anonymous
  • anonymous
all my answer choices have n=0, then infinity or 15 at the top, and on the side: -45n or (-9+5n). So I thought I would have: infinity at the top, n=0 at the bottom, and (-9+5n) on the side.
anonymous
  • anonymous
\[\sum_{k=0}^{\infty} = -9+(k-1)5\]
anonymous
  • anonymous
change the k to n
anonymous
  • anonymous
wait... that would mean n=0 is -14
anonymous
  • anonymous
\[\sum_{n=0}^{\infty} = -4+(n-1)5\]
anonymous
  • anonymous
that's not an answer choice
anonymous
  • anonymous
that way n=0 is -9
anonymous
  • anonymous
what choice do you have?
anonymous
  • anonymous
a. summation of negative forty five times n from n equals zero to fifteen b. summation of the quantity negative nine plus five n from n equals zero to fifteen c. summation of the quantity negative nine plus five n from n equals zero to infinity d. summation of negative forty five times n from n equals zero to infinity
anonymous
  • anonymous
looks like c if you want -9 to infinity
anonymous
  • anonymous
That's what I thought.
anonymous
  • anonymous
it works too
anonymous
  • anonymous
just tested it
anonymous
  • anonymous
That wasn't correct. Could it be b?
anonymous
  • anonymous
yea 0 to 15 gives to -9 to 66
anonymous
  • anonymous
b* dayum i soo sleepy i saw 0 as b

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