Simplify.3(x + 2y - z) - 3(2x - y + 3z)
A. -3x + 3y - 12z
B. 9x + 9y - 12z
C. -3x + 9y + 12z
D. -3x + 9y - 12z
Answer: D
Mathematics
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Use identities to fill in the blank with the appropriate trigonometric function name.tan 
= 
A. csc B. cos C. tan D. cot
Mathematics
Solve the problem.Two people are 44 years old and 27 years old, respectively. In x years from now, their ages can be represented by 
and 
Use long division to find the ratio of the older person's age to the younger person's age in x years.
A. 1.6296
B. 1 + 
C. 1 + 
D. 1 + 
Mathematics
Based on the graph, find the range of y = f(x).
A. [0, ?)
B. [0, 
]
C. [0, 8)
D. [0, 8]
Mathematics
State an explicit rule for the nth term of the recursively-defined sequence.an = 8 ? an-1; a1 = 5
A. an = 8 ? 5n-1 B. an = 8 ? 5n C. an = 5 ? 8n D. an = 5 ? 8n-1
Mathematics