Add or subtract as indicated. Write the answer in simplest form.- 
+ 
A. - 
B. 
C. 
D. 
Answer: D
Mathematics
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Solve the system by the substitution method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(-1, 0)} B. no solution; ? C. {(-1, 1)} D. {(-2, 1)}
Mathematics
Evaluate the definite integral. Express the answer in terms of natural logarithms.
A. ln(6 + 
)
B. ln 7
C. ln(6 + 
)
D. ln(
)
Mathematics
Shade the regions representing the set.(A' ? B) ? C 
A. 
B. 
C. 
D. 
Mathematics
Find the area.
A. 968 in.2 B. 550 in.2 C. 1100 in.2 D. 2200 in.2
Mathematics