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Fri May 12, 2023 3:15 am
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C
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Difficulty:
15%
(low)
Question Stats:
86% (02:12) correct
14%
(02:25)
wrong
based on 56
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Date
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Not Attempted Yet
If x-1, x+6, x+7 are 3 side lengths of a right triangle, what is the value of x?
A. 4
B. 5
C. 6
D. 7
E. 8
A. 4
B. 5
C. 6
D. 7
E. 8
Fri May 12, 2023 6:17 am
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largest side will be x+7
(x+7)^2 = ( x+6)^2+ ( x-1)^2
let x = 6
13^2 = (12)^2+ (5)^2
option C
(x+7)^2 = ( x+6)^2+ ( x-1)^2
let x = 6
13^2 = (12)^2+ (5)^2
option C
Bunuel
Fri May 12, 2023 6:45 am
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Bunuel
Use Pythagorean triples form (5,12,13) only (C) is possible , as \(x - 1 = 5\), \(x+6 = 11\) & \(x+7 = 13\)
