Find the exact function value.cot-1(-1)
A. 
B. 
C. - 
D. - 
Answer: C
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Solve the problem.On the graph described by 2x - 2y + 2z = 6, find the point that is closest to the origin.
A. 
B. 
C. (-12, 12, -12)
D. (12, -12, 12)
Graph the solution of the rational inequalities on a number line and write the solution in interval notation;.
? 0
A. 
B. 
? [4, ?)
C. 
D. 
? (4, ?)
Provide an appropriate response.Suppose a corporation pays $50,000 for a machine that has a useful life of eight years and a salvage value of $5000. A sinking fund is established to replace the machine at the end of 8 years. The replacement machine will cost $70,000. If equal payments are made into the fund at the end of every 6 months and the fund earns interest at the rate of 10% compounded semiannually, what should each payment be?
Fill in the blank(s) with the appropriate word(s).
Solve the logarithmic equation.ln(4x - 3) = ln 3 - ln (x - 1)
A. ?
B. 0, 
C. 1, 
D. 