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RSB [31]
1 year ago
5

Write the following in sigma notation; n=1. 6+9+27/2+81/4+...

Mathematics
1 answer:
siniylev [52]1 year ago
4 0

The sigma notation for the series is given below.

\sum ^{\infty}_{n\mathop=1}=(3^{n\text{ }}.2^{-(\text{ n - 2 )}}\text{ )}

The above formula is the sigma notation required

If you input each term into the notation above you will get the values of each term.

For example the first term which is 6 was gotten by

\begin{gathered} \sum ^{\infty}_{n\mathop=\text{ 1}}=(3^1x2^{-(1-2\text{ ) }}) \\ =(3x2^{-(-1\text{ )}}\text{ )} \\ =(3.2^1) \\ =\text{ ( 6 )        ( pls. note that dot above is multiplication sign )} \end{gathered}

The sigma is therefore the formular above

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There are 5/4 as many bowls as people. If there are 25 bowls how many people are there?
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Answer:

20 people

Step-by-step explanation:

Take the amout of bowls (25) and divide by the ratio (5)

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Multiply 5 *4 = 20

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7 0
4 years ago
All together Maria and Nick had $12. After Maria spent 30% of her money and Nick spent 50 % of his money, Maria and Nick were le
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Answer:

$4.5

Step-by-step explanation:

Let the amount of money

Maria had = x

Nick had = y

All together Maria and Nick had $12.

= x + y = 12

x = 12 - y

After Maria spent 30% of her money and Nick spent 50 % of his money, Maria and Nick were left with the same amount.

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30/100 × x = 50/100 × y

0.3x = 0.5y

We substitute 12 - y for x above

0.3(12 - y) = 0.5y

3.6 - 0.3y = 0.5y

3.6 = 0.5y + 0.3y

3.6 = 0.8y

y = 3.6/0.8

y = $4.5

Therefore, in the beginning, Nick originally had $4.5

8 0
3 years ago
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Answer:

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Step-by-step explanation:

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4 years ago
How many cups equal 372 quarts
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First we have to find out how many cups equals one quart

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