Need help answer | Mathematics | Page 1

nova quartz Jul 30, 2023, 6:51 AM

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hoary egretBOT Jul 30, 2023, 6:51 AM

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nova quartz

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light thistle Jul 30, 2023, 6:52 AM

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nova quartz

you can factor out a constant from the sum, in this case, you want everything inside to be to the power of n

nova quartz Jul 30, 2023, 6:52 AM

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Like the thing is idk where to start

light thistle Jul 30, 2023, 6:53 AM

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0.0142 is right

nova quartz Jul 30, 2023, 6:53 AM

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that the answer

light thistle Jul 30, 2023, 6:53 AM

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ye

nova quartz Jul 30, 2023, 6:53 AM

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to the question above

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Idk how to get to 0.0142

fluid blaze Jul 30, 2023, 6:53 AM

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nova quartz

Note that (-3)^n/7^(n + 2) = (1/49)(-3/7)^n. This is in the usual form of geometric series.

nova quartz Jul 30, 2023, 6:56 AM

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uhh

unborn urchin Jul 30, 2023, 7:07 AM

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nova quartz uhh

...do you know generally how to calculate geometric series?

nova quartz Jul 30, 2023, 7:21 AM

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Not really

unborn urchin Jul 30, 2023, 7:42 PM

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nova quartz Not really

Okay, so. A geometric series is of the form sum(n = 0, inf) x^n, right?

nova quartz Jul 31, 2023, 4:51 AM

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+close

#Need help answer