Use a computer or graphing calculator to find the limit. Begin by plotting the function in an appropriate window.
1/x
A. ?
B. 1
C. 0
D. Does not exist
Answer: B
Mathematics
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Change the Cartesian integral to an equivalent polar integral, and then evaluate.
A. 
B. 
C. 
D. 
Mathematics
Write the equation in standard form.y = -3(x - 3)2 - 3
A. y = -3x2 + 18x - 30 B. y = -3x2 + 9x - 30 C. y = -3x2 - 18x - 30 D. y = -3x - 30
Mathematics
Simplify. Assume all variables and radicands represent nonnegative real numbers.
A. 3xy
B. 3x
C. 3x2 
D. 3xy2 
Mathematics
Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(5, -2)} B. {(-6, -2)} C. no solution; ? D. {(-5, -3)}
Mathematics