Use the commutative and/or associative property of addition and then simplify.3 + y + 4
A. 4y + 3
B. y + 12
C. y + 7
D. 7
Answer: C
Mathematics
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Write as the sum and/or difference of logarithms. Express powers as factors.log5
A. log5x - 2
B. - 2log5x
C. 
log5x - 2
D. 10 - 
log5x
Mathematics
Match the correct function to the graph.
A. y = |x + 2| B. y = |1 - x| C. y = x - 2 D. y = |2 - x|
Mathematics
The graph of a function is given. Find the indicated function value.f(-0.9)
A. 2.1 B. 2.641 C. 1 D. -1.34
Mathematics
Solve the problem.An airplane flying faster than the speed of sound creates sound waves that form a cone. If ? is the vertex angle of the cone and m is the Mach number for the speed of the plane, then 
Find the Mach number to the nearest tenth if 
A. 1.7 B. 1.4 C. 2.6 D. 2.4
Mathematics