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3 years ago

What is the answer? Will give brainilist.

Mathematics

1 answer:

Elina [12.6K]3 years ago

5 0

Answer:

Step-by-step explanation:

first put them in order

5,6,6,8,9,9

now the ones that are in the middle are 6 and 8 so we find the average by adding them then dividing by 2

6+8=14/2=7

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The following is an arithmetic series.<br> 31+33.5+36+38.5+...<br> O True<br> O False

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Answer:

True

Step-by-step explanation:

It is the sum of numbers having a common difference. The fact that it is a sum makes it a series (as opposed to a sequence, which is just a list of numbers). The common difference (of 2.5) makes it an arithmetic series.

True, the sum is an arithmetic series.

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3 years ago

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How many subsets does the set {c,o,v,i,d} have?

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<h3>Answer: 32</h3>

Explanation:

If a set has n items inside it, then there will be 2^n different subsets. This includes the original set itself (since any set is a subset of itself).

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For more information, I recommend looking up the term "power set".

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3 years ago

A bag contains 7 pieces of paper numbered 1 to 7. P(2)=. Is

pochemuha

Answer:

$P (2) =\frac{1}{7}$ Theoretical probability

Step-by-step explanation:

The theoretical probability is defined as:

$P = \frac{number\ of\ desired\ results}{number\ of\ possible\ results}$

In this case we look for the probability of taking a 2 out of the bag. As there is only one paper with the number 2 in the bag then:

number of desired results = 1

The amount of paper in the bag is equal to 7, so:

number of possible results = 7

Thus:

$P (2) =\frac{1}{7}$

This is a theoretical probability, since we do not need to perform the experiment to calculate the probability.

To calculate the experimental probability we must perform the following experiment:

Take a paper out of the bag, record the number obtained and then return the paper to the bag.

Now repeat this experiment n times. (Perform n trials)

So:

$P (2) = \frac{number\ of\ times\ you\ obtained\ the\ number\ 2}{number\ of\ trials\ performed}$

To calculate a theoretical probability you always need to perform an experiment with n trials.

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3 years ago

Yesterday I sold 64 icecreams. This morning I sold 80 icecreams. With what percentage did my sales increase?

s2008m [1.1K]

The sales increased by 25%

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3 years ago