Simplify the exponential expression. Assume that variables represent nonzero real numbers.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Determine whether the function is a solution of the wave equation.w(x, t) = sin (-9x - 9ct)
A. Yes B. No
Mathematics
Write the number in scientific notation.52,000,000
A. 5.2 × 10-6 B. 5.2 × 107 C. 5.2 × 106 D. 5.2 × 10-7
Mathematics
Provide an appropriate response.
Which two lines are parallel? 
A. 
and 
B. 
and 
C. 
and 
D. 
and 
Mathematics
Perform the indicated operation and simplify.
+ 
A. 
B. 
C. 
D. 
Mathematics