Use the disk or shell method to find the volume of the solid generated by revolving the region in the first quadrant bounded by the graph of the equation about the given line.
?
?
(i) the x-axis; (ii) the y-axis
?
A. 
; 
B. ?
;
C. ?
;
D. ?
;
E. ?
;
Answer: A
Mathematics
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Solve the system by elimination.
A. 
B. 
C. 
D. 
Mathematics
The graph below shows Brett's salary history during his first seven years at his current job. Use this graph to answer the question. Round to the nearest tenth of a percent. 
What is the percent of increase in Brett's salary between his sixth and seventh year at the job?
A. 6.3% B. 7.7% C. 93.8% D. 6.7%
Mathematics
Solve by completing the square.y2 + 3y - 9 = 0
A. -3 ± 3
B. 
C. 
D. 
Mathematics
Evaluate the absolute value expression.
+ 
A. 2 B. 0 C. -1 D. 1
Mathematics