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If 1/x = 0.25^(1/2), what does x equal?
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04 Mar 2018, 22:20
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Re: If 1/x = 0.25^(1/2), what does x equal?
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04 Mar 2018, 22:50



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If 1/x = 0.25^(1/2), what does x equal?
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05 Mar 2018, 04:52
Bunuel wrote: If \(\frac{1}{x} = \sqrt{0.25}\), what does x equal?
(A) 0.2 (B) 0.5 (C) 2 (D) 5 (E) 20 Given: \(\frac{1}{x} = \sqrt{0.25}\) Squaring on both sides, we get \(\frac{1}{x^2} = 0.25\) > \(x^2 = \frac{1}{0.25} = \frac{100}{25} = 4\) Therefore, x = \(\sqrt{4}\) = 2(Option C)
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Re: If 1/x = 0.25^(1/2), what does x equal?
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05 Mar 2018, 05:54
Bunuel wrote: If \(\frac{1}{x} = \sqrt{0.25}\), what does x equal?
(A) 0.2 (B) 0.5 (C) 2 (D) 5 (E) 20 \(\frac{1}{x} = \sqrt{0.25}\) Or, \(\frac{1}{x} = \sqrt{\frac{25}{100}}\) Or, \(\frac{1}{x} = \frac{5}{10}\) So, \(\frac{1}{x} = 0.50\), Answer must be (B)
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Re: If 1/x = 0.25^(1/2), what does x equal?
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06 Mar 2018, 10:21
Bunuel wrote: If \(\frac{1}{x} = \sqrt{0.25}\), what does x equal?
(A) 0.2 (B) 0.5 (C) 2 (D) 5 (E) 20 We can solve for x: 1/x = √0.25 1/x = 0.5 1 = 0.5x 1/0.5 = x 2 = x Answer: C
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Re: If 1/x = 0.25^(1/2), what does x equal?
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06 Mar 2018, 10:47
Abhishek009 wrote: Bunuel wrote: If \(\frac{1}{x} = \sqrt{0.25}\), what does x equal?
(A) 0.2 (B) 0.5 (C) 2 (D) 5 (E) 20 \(\frac{1}{x} = \sqrt{0.25}\) Or, \(\frac{1}{x} = \sqrt{\frac{25}{100}}\) Or, \(\frac{1}{x} = \frac{5}{10}\) So, \(\frac{1}{x} = 0.50\), Answer must be (B)Answer must be C not B 1/x^2=25/100 1/x=1/2 x=2



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Re: If 1/x = 0.25^(1/2), what does x equal?
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06 Mar 2018, 10:56
Abhishek009 wrote: \(\frac{1}{x} = \sqrt{0.25}\)
Or, \(\frac{1}{x} = \sqrt{\frac{25}{100}}\)
Or, \(\frac{1}{x} = \frac{5}{10}\)
So, \(\frac{1}{x} = 0.50\), Answer must be (B) Hey Abhishek009 , You did everything correct but the last step. We are asked to determine x not 1/x. Hence, answer must be 2 i.e C
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Re: If 1/x = 0.25^(1/2), what does x equal?
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06 Mar 2018, 11:06
0.25 = 1/4 ^ 1/2 = sqrt(everything that is raised to this power) (1/2)^1/2 = sqrt(1/4) = 1/2 1/x = 1/2 x=2



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If 1/x = 0.25^(1/2), what does x equal?
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11 Mar 2018, 03:54
Bunuel wrote: If \(\frac{1}{x} = \sqrt{0.25}\), what does x equal?
(A) 0.2 (B) 0.5 (C) 2 (D) 5 (E) 20 Given: \(\frac{1}{x} = \sqrt{0.25}\) Question : x =? \(\frac{1}{x^2}\) = \(\frac{25}{100}\) \(\frac{1}{x^2}\) = \(\frac{1}{4}\) \(x^2\)= 4 x =\(\sqrt{4}\) x = 2 (C)
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If 1/x = 0.25^(1/2), what does x equal? &nbs
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