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4 years ago

What is the answer to n=4

Mathematics

1 answer:

konstantin123 [22]4 years ago

3 0

Answer:

Step-by-step explanation:

n=4 you have to square the n so that when it cross the equal sign it will be square root of 4.

=>n^2=4

=>n=√4

=>n=2.

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If you use the general equation for an arithmetic sequence,

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$a_{4}=70+2(4-1)$

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$a_{5}=70+2(5-1)$

which gives us a length of 78. Now we will find the length of the 14th movie and add up by 2's all the way up to that number of minutes:

$a_{14}=70+2(14-1)$

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