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meriva
3 years ago
11

Evaluate the following trigonometric expression

Mathematics
1 answer:
Harlamova29_29 [7]3 years ago
5 0

Answer:

-60

hope it helps

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A group of 15 people are going to run a race. The top 8 will advance to the finals. Determine if the situation is a permutation
LUCKY_DIMON [66]

For the given situation we have a total of 259,459,200 permutations.

<h3>How many permutations are?</h3>

First, how we know that it is a permutation?

Because the order matters, we aren't only selecting 8 out of the 15 people, but these 8 selected also have an order (is not the same thing to finish the race first than fourth, for example).

Then we need to find the number of permutations, to do it, we need to find the numbers of options for each of the 8 positions.

  • For the first position there are 15 options.
  • For the second position ther are 14 options (one runner already finished).
  • For the third position there are 13 options.
  • And so on.

Then the total number of permutations (product between the numbers of options) is:

P = 15*14*13*12*11*10*9*8 = 259,459,200

If you want to learn more about permutations:

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2 years ago
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What are the following fractions
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Saffron is a powder made from crocus flowers and is used in the manufacturing of perfume. Some 8,000 crocus flowers are required
Aneli [31]
16/2=8
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8x8,000=64,000
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3 years ago
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What measure of central tendency is most affected by outliers?.
Elden [556K]

Answer: Mean

Mean is the only measure of central tendency that is always affected by an outlier.

hope this helps!

have a nice day!

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Jane studies the properties of four ionic compounds: NaCl, KBr, Cas, and Mgo, as shown in the table.
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c

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