oceannesaidi oceannesaidi
  • 23-03-2021
  • Mathematics
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-5, 20, – 80, 320,
represents a geometric sequence. Let Q= -5.
Which equation is an explicit formula that represents the sequence?

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BopJarts
BopJarts BopJarts
  • 23-03-2021
Answer: -5 * -5^n-1
Explanation: the equation for explicit formula is a (a 1 at the bottom of a) times r to the power of n minus 1
a with the 1 at the bottom just means your first term, which is -5.
R is Q which is -5
When you put that together you get -5 * -5^n-1

(The asterisk(*) means multiplication and the caret(^) means the variables and numbers after it are in exponent form.


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