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29 Apr 2021, 08:45
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A
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Difficulty:
5%
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Question Stats:
89% (01:23) correct
11%
(01:29)
wrong
based on 57
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What is the value of expression \(y^2 - (x - (y + \frac{1}{2})) - 2.3\) when \(x = 2\) and \(y = -3\)
A. 2.2
B. 2.4
C. 2.6
D. 2.8
E. 3
A. 2.2
B. 2.4
C. 2.6
D. 2.8
E. 3
29 Apr 2021, 08:52
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Asked: What is the value of expression \(y^2 - (x - (y + \frac{1}{2})) - 2.3\) when \(x = 2\) and \(y = -3\)
\(y^2 - (x - (y + \frac{1}{2})) - 2.3 = 9 - (2- (-3 + .5)) - 2.3 = 9-4.5-2.3 = 2.2\)
IMO A
\(y^2 - (x - (y + \frac{1}{2})) - 2.3 = 9 - (2- (-3 + .5)) - 2.3 = 9-4.5-2.3 = 2.2\)
IMO A
29 Apr 2021, 12:43
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Bunuel
\(y^2 - (x - (y + \frac{1}{2})) - 2.3\) when \(x = 2\) and \(y = -3\)
\(9 - (2 - (-3 + 1/2)) - 2.3\)
\(9 - (2 - (-5/2)) - 2.3\)
\(9 - (2 + 5/2) - 2.3\)
\(9 - (2 + 2.5) - 2.3\)
\(9 - 4.5 - 2.3\)
\(4.5 - 2.3\)
\(2.2\)
