Solve the system by the addition method.
A. {(5, 4), (-5, -4)}
B. {(4, 5), (-4, 5), (4, -5), (-4, -5)}
C. {(4, 5), (-4, -5)}
D. {(5, 4), (-5, 4), (5, -4), (-5, -4)}
Answer: B
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Find the indicated quantity.Find the moment of inertia with respect to its axis of the solid generated by revolving the region bounded by 
and the 
about the 
where k is the density.
A. 
?k
B. 
?k
C. 
?k
D. 
?k
Solve the problem.As part of her retirement savings plan, Patricia deposited $200 in a bank account during her first year in the workforce. During each subsequent year, she deposited $30 more than the previous year. Find how much she deposited during her twentieth year in the workforce. Find the total amount deposited in the twenty years.
A. $800; $20,000 B. $770; $19,400 C. $800; $10,000 D. $770; $9700
Use the given graph to find the x-intercepts.
A. -4, 2 B. 4, 2 C. -4, -2 D. -2, 4
Find the specified domain and express it in interval notation.For f(x) = 2x - 5 and g(x) = 
, what is the domain of 
(x)?
A. (-8, 8) B. [8, ?) C. (-8, ?) D. [0, ?)