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Mars2501 [29]
3 years ago
12

Which elements in the set below are integers? –3, 3.7, √ 81 , –7.34, √ 8 , 5, 56⁄7, –1 A. –3, √ 81 , 5, 56⁄7, –1 B. 3.7,√ 81 , √

8 , 5, 56⁄7 C. –3, 3.7, –7.34, –1 D. 3.7, –7.34, √ 8
Mathematics
2 answers:
Doss [256]3 years ago
4 0

The answer is:  A. –3, \sqrt{81}, 5, \frac{56}{7}.

The explanation is shown below:

1) By definition, the integers include whole numbers, negative numbers and zero.

2) Therefore, keeping this information on mind, you have that:

-3 is a negative number without decimal part, therefore, it is an integer.

3.7 is decimal number, so it is not an integer.

\sqrt{81}=9 (It is a whole number, therefore, it is an integer).

-7.34 is a decimal number, so it is not an integer.

\sqrt{8}=2.828 is an irrational number. It is not an integer.

5 is a whole number, therefore, it is a integer.

\frac{56}{7}=8 (It is a whole number, then, it is an integer).

Aleks04 [339]3 years ago
3 0

Answer:

A

Step-by-step explanation:

–3, √ 81 , 5, 56⁄7

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