Solve the system of equations by graphing the equations on the same set of axes.
A. (-1, 2)
B. (-1, -2)
C. (-2, -1)
D. no solution
Answer: B
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Solve the problem.Find the center of mass of the region of constant density bounded from above by the sphere 
and from below by the cone 
A. 
= 0, 
= 0, 
= 
(2 + 
)
B. 
= 0, 
= 0, 
= 
(2 + 
)
C. 
= 0, 
= 0, 
= 
(2 + 
)
D. 
= 0, 
= 0, 
= 
(2 + 
)
Answer the given question.Where are all points whose first coordinate is positive?
A. In third or fourth quadrant B. In second or third quadrant C. In first or fourth quadrant D. In first or second quadrant
Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The triangle with vertices (0, 0), (0, 2), and (6, 2) about the line x = 6
A. 24? B. 48? C. 12? D. 60?
Solve.The number of employees that work at a company has increased by 35% over the past year. This year there are 353.5 more employees with the company than last year. How many employees were there last year?
A. 10.1 employees B. 1010 employees C. 656.5 employees D. 12,372.5 employees