Solve the system of equations using elimination. 
A. 
B. infinitely many solutions
C. no solution
D. 
Answer: D
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Use implicit differentiation to find the specified derivative at the given point.Find 
at the point (1, 2, e2) for ln(xz)y + 4y3 = 0.
A. - 
B. - 25
C. 
D. 25
Solve the problem.A repair company's charge for repairing a certain type of copy machine fits the model 
where y is the amount charged in dollars and x is the number of minutes the repair person is on the job. How many minutes would it take for the cost of repair to reach $130? (Round to the nearest minute.)
A. 13 min B. 134 min C. 287 min D. 203 min
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.
A. 
i
B. - 
C. - 
- 
i
D. - 
+ 
i
Draw a tree diagram for the experiment. Then use the diagram to find the number of possible outcomes.Toss two coins.
A. 4 outcomes B. 2 outcomes C. 1 outcome D. 3 outcomes