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myrzilka [38]
4 years ago
14

What is the answer?!?! help!

D%20" id="TexFormula1" title="130.8 \div 6.02 \times { 10}^{23} " alt="130.8 \div 6.02 \times { 10}^{23} " align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Elodia [21]4 years ago
4 0

mathematically the answer of 130.8 divided by 6.02 times 10 is equal to the positive and exact answer of

217.2757475083056

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What is the sum of the first 51 consecutive odd positive integers?
Angelina_Jolie [31]
We call:

a_{n} as the set of <span>the first 51 consecutive odd positive integers, so:

</span>a_{n} = \{1, 3, 5, 7, 9...\}

Where:
a_{1} = 1
a_{2} = 3
a_{3} = 5
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In mathematics, a sequence of numbers, such that the difference between two consecutive terms is constant, is called Arithmetic Progression, so:

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Then, the common difference is 2, thus:

</span>a_{n} = \{ a_{1} , a_{1} + d, a_{1} + d + d,..., a_{1} + (n-2)d+d\}
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Then:

</span>a_{n} = a_{1} + (n-1)d
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So, we need to find the sum of the members of the finite series, which is called arithmetic series:

There is a formula for arithmetic series, namely:

</span>S_{k} = ( \frac{a_{1} +  a_{k}}{2}  ).k
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Therefore, we need to find:
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Given that a_{1} = 1, then:

a_{n} = a_{1} + (n-1)d = 1 + (n-1)(2) = 2n-1

Thus:
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