Write an equivalent expression using a commutative or associative law, as indicated.2x + 4y; commutative
A. 4y + 2x
B. 
+ 4y
C. 2x + 
D. 
+ 
Answer: A
Mathematics
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Construct the requested preference table.Construct a preference table showing an election using the plurality method that violates Condorcet's criterion.
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Mathematics
Solve the inequality. Give the solution set in both interval and graph forms.
t ? - 60
A. [-80, ?)
B. (-?, -80]
C. (-?, 80]
D. [80, ?)
Mathematics
Find an equation of the line having the given slope and containing the given point. m = - 
, (3, 4)
A. y = - 
x + 
B. y = - 
x - 
C. y = - 
x + 
D. y = - 
x - 
Mathematics
Prove the identity.2 cot 2x cos x = csc x - 2 sin x
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Mathematics