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Ksju [112]
3 years ago
9

How can you classify the results of operations on real numbers? ​

Mathematics
2 answers:
choli [55]3 years ago
5 0
Closure property: If a and b are real numbers, a+b is also a real number.
- Associative property: a+(b+c) = (a+b)+c.
- Commutative property: a+b = b+a.
- Additive identity: a+0 = a.
- Additive inverse: a + (-a) = 0.
For Multiplication -
Tanzania [10]3 years ago
4 0
A squared plus B squared equals C squared
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If my dog was born 4 weeks before August 27th how old will my dog be
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Step-by-step explanation:

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4 0
3 years ago
Complete the table with the number of sit-ups you have to do sunday so that the mean number of sit-ups per day is 100
marissa [1.9K]

The mean is the average of the numbers.

It is easy to calculate: add up all the numbers, then divide by how many numbers there are.

Let the number of sit-ups you have to do Sunday be x. Then the sum of all sit-ups is

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The number of days is 7.

Thus, the mean is

\text{mean}=\dfrac{525+x}{7}.

You know that the mean number of sit-ups per day is 100, equate these two means and solve the equation:

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5 0
3 years ago
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