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castortr0y [4]
3 years ago
15

Which number produces an irrational number when multiplied by -1.25

Mathematics
2 answers:
Ira Lisetskai [31]3 years ago
8 0

Answer: Option 'D' is correct.

Step-by-step explanation:

When a rational number is multiplied by rational number , it gives rational number only.

When an irrational number is multiplied by rational number, it gives irrational number always.

Since we need to produce an irrational number .

A. 3/4 is a rational number if we multiply by -1.25 it will remain a rational number.

B.5.21=\dfrac{521}{100} is a rational number if we multiply by -1.25 it will still remain a rational number.

C.-0.454545=-0.\bar{45}=\dfrac{-45}{99} is a rational number if we multiply by -1.25 it will still remain a rational number.

D. square root 17 = √17 is an irrational number if we multiply by -1.25 , it still remain irrational number.

So, Option 'D' is correct.

Snowcat [4.5K]3 years ago
4 0
D. Square root of 17
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