Solve the equation.4 ? n = 72
A. n = 21
B. n = 19
C. n = 18
D. n = 20
Answer: C
Mathematics
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Use the substitution formula to evaluate the integral.
A. - 
B. 
C. 
D. ln 2
Mathematics
The graph of a one-to-one function f is given. Sketch the graph of the inverse function f-1, on the same set of axes. Use a dashed line for the inverse.
A. 
B. 
C. 
D. 
Mathematics
Convert to fraction notation.6
A. 
B. 
C. 
D. 
Mathematics
Use Cramer's rule to solve the system. If D = 0, use another method to complete the solution. x - y + 2z = -65x + z = -4 x + 5y + z = -14
A. ? B. {(-4, 0, -2)} C. {(-4, -2, 0)} D. {(0, -2, -4)}
Mathematics