Perform the indicated operation and express in lowest terms.
÷ 
A. 
B. z + 7
C. 
D. 
Answer: C
Mathematics
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Mathematics
Use this graph to answer the question.
MonthWhich month in 2010 had the lowest sales?
A. Month 3 B. Month 2 C. Month 12 D. Month 7
Mathematics
Complete the equation so the result is an identity. cos x = (cot x)(
)
A. tan x B. sec x C. sin x D. csc x
Mathematics
Provide an appropriate response.In solving a system of three equations in three variables, the final step yields the following equation: 
How many solutions does this system have? Explain geometrically.
What will be an ideal response?
Mathematics