Evaluate the expression.
A. 504
B. 1
C. 9
D. 60,480
Answer: D
Mathematics
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Multiply and simplify. Assume variables do not cause any denominators to equal 0.
? 
A. 
B. 
C. - 
D. - 
Mathematics
Evaluate -(-x) for the given value of x.x = - 
A. 
B. 
C. - 
D. - 
Mathematics
Solve the problem.An airplane is sighted at the same time by two ground observers who are 2 miles apart and both directly west of the airplane. They report the angles of elevation as 14° and 
How high is the airplane?
A. 1.3 mi B. 0.75 mi C. 0.48 mi D. 2.02 mi
Mathematics
Establish the identity.
= 
What will be an ideal response?
Mathematics