3 years ago

Please answer this correctly

Mathematics

1 answer:

Lubov Fominskaja [6]3 years ago

7 0

The awnser to this is 2 and also 3

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The standard form of <br> (6x1)+5x1/100+3x1/1,000

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Step-by-step explanation:

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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

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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

= $^{13}C_{6}$

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

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

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

= $\frac{1235520}{720}$

= 1716

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

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2 years ago

Vito is reading a historical fiction novel about Nelson Mandela for his literature class. He needs to identify a theme from the

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3 years ago

3. At the beginning of the day, a water tank contained 526.8 gallons of water. During the day,

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Step-by-step explanation:

It is 208.85 because when you have .8 + .05 =.85

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(2y-5)(5y+7) answer this quickly lol