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sqrt x-1=4
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28 Dec 2020, 10:57
28 Dec 2020, 10:57
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Question Stats:
90% (00:19) correct
10% (00:13) wrong based on 10 sessions
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\(\sqrt{x-1}=4\)
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Quantity A |
Quantity B |
x |
17 |
A)The quantity in Column A is greater.
B)The quantity in Column B is greater.
C)The two quantities are equal.
D)The relationship cannot be determined from the information given.
Kudos for the right answer and explanation
Re: sqrt x-1=4
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29 Dec 2020, 00:08
29 Dec 2020, 00:08
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Simply square both sides.
We don't have to worry about positive or negative values for x, simply because x-1>0 => x>1
x-1 = 16
x=17
Hence, C.
We don't have to worry about positive or negative values for x, simply because x-1>0 => x>1
x-1 = 16
x=17
Hence, C.
Re: sqrt x-1=4
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18 Feb 2024, 05:25
18 Feb 2024, 05:25
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