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NNADVOKAT [17]
3 years ago
5

How do you write 0.000081 in scientific notation?

Mathematics
1 answer:
Alex73 [517]3 years ago
6 0
Scientific notation: 8.1x10^-5
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Write 2. 2/3 as an improper fraction
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Simplify a trigonometric expression using basic identities.
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A swim meet has 13 contestants signed up for the 100-meter butterfly event. The first heat has 6 swimmers. How many different wa
tino4ka555 [31]

Answer:

6 swimmers in the first heat can be arranged in 1716 different ways.

Step-by-step explanation:

A swim meet has 13 contestants signed up. To calculate the arrangement of first 6 swimmers in first heat we will use combinations because order doesn't matter.

So to select 6 swimmers out of 13 contestants number of different ways

= ^{13}C_{6}

= \frac{13!}{(6!)(13-6)!}

= \frac{13\times 12\times 11\times 10\times 9\times 8\times 7!}{6!\times 7!}

= \frac{13\times 12\times 11\times 10\times 9\times 8}{6\times 5\times 4\times 3\times 2\times 1}

= \frac{1235520}{720}

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Define table represents a group frequency discretion of the number of hours spent on the computer per week for 49 student. What
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Observe the given data distribution table carefully.

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Thus, the upper-class limit of this 5th class is 17.4.

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