Identify the property of real numbers demonstrated in the statement.2(x + 8) = 2(8 + x)
A. Identity property of addition
B. Associative property of addition
C. Commutative property of addition
D. Commutative property of multiplication
Answer: C
Mathematics
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Factor.z2 - 4z + 4
A. (z - 4)(z + 4) B. (z - 2)2 C. (z + 2)2 D. (z - 2)(z + 2)
Mathematics
Integrate using any method.
Mathematics
Find the inverse of the function.f(x) = 7x
A. f-1(x) = 
B. f-1(x) = 7 + x
C. f-1(x) = 7x
D. f-1(x) = 
Mathematics
Solve.Martha can rake the leaves in her yard in 3 hours. Her younger brother can do the job in 5 hours. How long will it take them to do the job if they work together?
A. 
hr
B. 
hr
C. 5 hr
D. 
hr
Mathematics