Answers

  • Brainly User
2015-11-11T14:26:36+08:00
The number is 1/25.

Solution:
Let x be number:

x ^{-1/2} =5

 \frac{1}{ x^{1/2} } =5

 \frac{1}{ \sqrt{x} } =5

( \sqrt{x}) \frac{1}{ \sqrt{x} }  =5( \sqrt{x} )

1 = 5 \sqrt{x}

(5 \sqrt{x} ) ^{2} =(1) ^{2}

25x = 1

25x =  1
25      25

x = 1/25
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