Write an inequality using the variable x that corresponds to the set graphed on the number line.
A. x ? -4
B. x > -4
C. x < -4
D. x ? -4
Answer: B
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Find a formula for the nth partial sum of the series and use it to find the series' sum if the series converges.
+ 
+ 
+ ... + 
+ ...
A. 
; 7
B. 
; 7
C. 
; 7
D. 
; 7
Evaluate the integral.
A. - ln 
+ 
ln 
- 3 tan-1 (sin t) + C
B. ln 
- ln 
- 5 tan-1 (sin t) + C
C. - ln 
+ 
ln 
- 3 tan-1 t + C
D. - ln 
+ 
ln 
+ C
Without graphing, determine the number of solutions of the system of equations. State whether the system is consistent or inconsistent. For a system that is consistent, state whether the equations are dependent or independent.
A. one solution; consistent; independent B. no solution; inconsistent C. infinitely many solutions; consistent; dependent D. one solution; consistent; dependent
Solve the problem.Determine a polynomial that represents the area of the figure.
A. 25t2 + 25t + 25 B. 25t2 + 25 C. 25t2 + 50t + 25 D. 10t2 + 50t + 10