Solve the system of equations by elimination.
A. (-3, 1)
B. (1, -3)
C. infinitely many solutions
D. no solution
Answer: B
Mathematics
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Find the area enclosed by the given curves.y = csc 2 x, y = cot 2 x, x = 
, and x = 
A. ?
B. 
C. 
D. 
Mathematics
Solve the equation.
a = 0
A. {19} B. {-19} C. {1} D. {0}
Mathematics
Evaluate.(-1)4
A. 1 B. -4 C. -1 D. 4
Mathematics
Solve the problem.Suppose the annual sales of a particular brand of appliance are given by the linear function 
where f(x) represents the number of sales in year x, with x = 0 corresponding to 1982. Find the number of sales in 1991.
A. 900 B. 950 C. 1900 D. 1850
Mathematics