Add. Write your answer in lowest terms.
+ 
A. 1
B. 
C. 
D. 
Answer: B
Mathematics
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Decide whether the equation is or is not an identity.tan 
= -cot ?
A. Not an identity B. Identity
Mathematics
Solve the equation. Give an exact solution.e(x + 8) = 5
A. {ln 13} B. {ln 5 - 8} C. {e5 + 8} D. {e40}
Mathematics
Use Cramer's rule to solve the system.11x + 3y=15x + 2y=4
A. {(
, 
)}
B. {(- 
, 
)}
C. {(
, - 
)}
D. {(- 
, 
)}
Mathematics
Graph the equation.y2 = 12x
A. 
B. 
C. 
D. 
Mathematics