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3 years ago

8

Find the first 4 terms of the geometric sequence a1=40 and r=0.5

2 answers:

DedPeter [7]3 years ago

5 0

For the answer to the question above,
a1 = 40
<span>a2 = 20 </span>
<span>a3 = 10 </span>
<span>.. </span>
<span>aN = (1/2^N-1) a1 { in general aN= (r^N-1) A1 </span>

<span>a5 = (1/2^4) 40 = 40/16 = 2.5
</span>
So the answer to your question is 2.5
I hope my answer helped you. Feel free to ask more questions. Have a nice day!

Bogdan [553]3 years ago

5 0

Answer:

So the answer to your question is 2.5. Thanks to MissPhiladelphia for her answer.

Step-by-step explanation:

For the answer to the question above,

a1 = 40

a2 = 20

a3 = 10

..

aN = (1/2^N-1) a1 { in general aN= (r^N-1) A1

a5 = (1/2^4) 40 = 40/16 = 2.5

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