Find the sum of the geometric sequence –3, 15, –75, 375, … when there are 9 terms and select the correct answer below.
1 answer:
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The way it is written, none of them.
The "a"s cancel out.
<h2>Answer_use this method </h2>
where
- d=is the given decimal
- k=is the number of terminating digits
- p=is the number of repeating digits
Step-by-step explanation:
Greetings !
use the above formula to change any decimal into fraction form
Thus, plug in the value and solve
Hope it helps !
You can determine this by finding zeros of quadratic function,
.
Which eliminates first and third option.
Now we have up and down parabolas left.
If we factor we find that the coefficient before
determines how it is turned, since its positive its an upward turned parabola hence the answer is the last graph.
Hope this helps.