anonymous
  • anonymous
Find the 7th term of a geometric sequence with t1=5 and r = -2.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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anonymous
  • anonymous
Don't be afraid. I will behave and not fight this time. Are you familiar with the geo seq formula? an = a1 * r ^ (n-1) an is a future term a1 is the first term n is the number of the term represented by an
anonymous
  • anonymous
Yes I Know That Equation But I Get Stuck When i Plug Everything in together
anonymous
  • anonymous
5*2^7-1=320

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anonymous
  • anonymous
?
anonymous
  • anonymous
The 2 should be a negative 2. With even powers there is no difference, but with odd powers it's a big deal. My calculator shows 5 *(-2)^(7-1) 320 We got the same answer because of the even power.

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