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vredina [299]
3 years ago
10

How do I find the answer. I need to know

Mathematics
2 answers:
cricket20 [7]3 years ago
7 0
Volume is LxWxH.....so mulyiply everything
garri49 [273]3 years ago
7 0
The volume is 728 

V=whl=8·7·13=728

V=Volume
W=Width
L=Length
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Express the series using sigma notation. 6 + 9 + 12 + 15.<br><br> a<br> b<br> c<br> d
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Answer:

Option (d) is correct.

6 + 9 + 12 +15 = \sum_{k=1}^{4}(3k+3)

Step-by-step explanation:

Consider the given series expansion 6 + 9 + 12 +15.

since we have to write in series form of 3.

We first write each term of given series in term of 3k or 3k+3

6 can be written as 3(2) or 3(1)+3

9 can be written as 3(3) or 3(2)+3

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Thus, we can write the given series as ,

\sum_{k=2}^{5}3k or  \sum_{k=1}^{4}(3k+3)

Since, we have options to choose.

From the given option (d) matches our result.

So,  6 + 9 + 12 +15 = \sum_{k=1}^{4}(3k+3)


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