Add the numbers using the number line.-4 + (2) 
A. 2
B. 6
C. -2
D. -6
Answer: C
Mathematics
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Find the slope of the line.
A. 2 B. -6 C. 0 D. undefined slope
Mathematics
Evaluate the improper integral or state that it is divergent.
A. 
ln 4
B. - 
ln 4
C. 3 ln 4
D. 
ln 3
Mathematics
Show that the equation is not an identity by finding a value of x for which both sides are defined but not equal.cos 5x + cos 12x = 2 cos 7x cos x
A. 2?
B. -2?
C. 
D. 0
Mathematics
Use a graphing utility to graph the function and then answer the question.The polynomial function 
represents the yearly income (or loss) from a real estate investment, where t is time in years. After what year does income begin to decline?
A. 13 B. 6.5 C. 5.5 D. 8.67
Mathematics