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Alik [6]
4 years ago
7

Which formula can be used to describe the sequence below? 29, 9, 3, 1, 1/3,.....

Mathematics
1 answer:
Maksim231197 [3]4 years ago
5 0

Answer:

Answer is   3^{4-n}

Step-by-step explanation:

It is 29 in place of 27 . and Its a geometric series with first term 27 and common ratio \frac{1}{3}

and  general formula for  given sequence is given by  a (r)^{n-1}

so plugging the value of a and r ,we get

   27 ([tex]\frac{1}{3})^{n-1}[/tex]

   3^3(\frac{1}{3} )}^{n-1}

      3^{4-n}

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3 years ago
Diane sold some stuffs at a garage sale. She spent one-half of the money she made on a new bicycle. Next, she spent one-half of
Evgen [1.6K]

Answer:

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Step-by-step explanation:

Diane sold some stuffs at a garage sale.

Let the total value of the money Diane made = x

She spent one-half of the money she made on a new bicycle.

Amount spent on a Bicycle = 1/2 × x = 1/2x

Next,

Amount left

= x - 1/2x = 1/2x

She spent one-half of what was left on a portable stereo.

Amount spent spent on Portable stereo

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If Diane had $40.00 left,

Hence:

The fraction of what was left is calculated as:

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Therefore, the amount she made from the garage sale is $160

8 0
3 years ago
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Step-by-step explanation:

7 0
3 years ago
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