Use the commutative and/or associative properties to simplify the following expression.
A. 
x
B. x
C. 
+ x
D. 
+ x
Answer: B
Mathematics
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Determine whether the triangles are congruent. If they are congruent, state why.
A. not congruent B. congruent; ASA C. congruent; SSS D. congruent; SAS
Mathematics
Write the solution set in interval notation.x > 
A. [
, ?)
B. (-?, 
)
C. (-?, 
]
D. (
, ?)
Mathematics
Name the quadrant, if any, in which the point is located.(-10, 15)
A. None B. I C. II D. III
Mathematics
Solve the problem.If f(x) = sin x and f(a) = - 
, find the exact value of f(a) + f(a - 4?) + f(a - 2?).
A. 
B. - 
C. - 
D. 
Mathematics