Perform the indicated operation. Give the answer in lowest terms.
? 
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Provide an appropriate response.Consider the curves corresponding to polar equations of the form 
where 
Explain how the graph changes as a changes. Identify any values of a for which the basic shape of the curve changes.
What will be an ideal response?
Mathematics
Use the addition principle for counting to solve the problem.If n(B) = 24, n(A ? B) =5, and n(A ? B) = 42, find n(A).
A. 24 B. 23 C. 21 D. 25
Mathematics
Find an equation for the line with the given properties.Slope undefined; containing the point 
A. y = 4
B. x = - 
C. y = - 
D. x = 4
Mathematics
Verify that the values of the variables listed are solutions of the system of equations.
x = 5, y = -1, z = -4
A. not a solution B. solution
Mathematics