Decide which of the 5 properties of a commutative group (closure, identity, inverse, associative, commutative) hold for the given system.
A. Closure, identity, inverse, and associative only
B. Closure, identity, and inverse only
C. Closure only
D. Closure and identity only
Answer: C
Mathematics
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Simplify the difference quotients 
and 
for the following function. Rationalize the numerator when necessary.f(x) = 
A. 
; 
B. - 
; - 
C. 
; 
D. - 
; - 
Mathematics
Use an integer to express the number.Sales at Andrea's Formal Wear Shop were $3,178 less this week than the sales last week.
A. -3,178 B. 3,178
Mathematics
Solve the quadratic equation by completing the square.x2 + 12x + 22 = 0
A. {-12 + 
}
B. {6 + 
}
C. {-6 - 
, -6 + 
}
D. {6 - 
, 6 + 
}
Mathematics
Provide an appropriate response.Divide and simplify: (x2 - 6x + 2) ÷ x
Fill in the blank(s) with the appropriate word(s).
Mathematics