Add or subtract as indicated. Simplify, if necessary.
+ 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Perform the indicated operation and simplify if possible.
A. 100
B. 10
C. 2
D. 4
Mathematics
The graph of a function f is given. Use the graph to answer the question.What is the domain of f?
A. {x|-25 ? x ? 25} B. {x|x ? 0} C. all real numbers D. {x|-20 ? x ? 27.5}
Mathematics
Find the slope of the line, if it is defined.Through (-5, -4) and (-5, -8)
A. 1 B. Undefined C. -4 D. 4
Mathematics
Identify the equation as either an identity or not.sin 2x sin 2y = cos2(x + y) - cos2(x - y)
A. Not an identity B. Identity
Mathematics