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ollegr [7]
2 years ago
15

Harlp needed ok thanks dudes

Mathematics
1 answer:
Ivanshal [37]2 years ago
8 0

Solution:

<u>A few definitions...</u>

  • Rational number - Any integer, fraction, terminating decimal, or repeating decimal is classified as a rational number
  • Irrational number - All the real numbers which are not rational numbers.

<u>Option A - Rational or Irrational?</u>

  • 1/2 + 1/3

Since both are known as fractions, they are rational numbers.

<u>Option B - Rational or Irrational?</u>

  • √2 + 5/2

√2 is classified as an Irrational number because if it is simplified, it does not result in any integer, fraction, terminating decimal, or repeating decimal.

<u>Option C - Rational or Irrational?</u>

  • 1/√4 + 7/2
  • => 1/2 + 7/2
  • => 8/2 = 4

Since this is an integer, this is rational.

<u>Option D - Rational or Irrational?</u>

  • √9 + √4
  • => √3 x 3 + √2 x 2
  • => 3 + 2 = 5

Since this is an integer, this is rational.

In conclusion...

Option B is correct.

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