Solve the absolute value equation.
= 0
A. {-4, 0}
B. {-4, 0, 4}
C. {0, 4}
D. ?
Answer: C
Mathematics
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Find the indicated derivative. Assume that x is restricted so that ln is defined.f' 
if f(x) = -ln(cos x)
A. 1
B. - 
C. - 
D. 
Mathematics
Solve the inequality.
? 
A. 
B. 
C. 
D. 
Mathematics
Solve the inequality. Write the solution set in interval notation.(x + 2)(x - 1) ? 0
A. [-2, 1] B. (-?, -2] ? [1, ?) C. (-2, 1) D. (-?, -2) ? (1, ?)
Mathematics
Solve the problem.The number of men dying of AIDS (in thousands) since 1987 is modeled by 
where x represents the number of years after 1987. Use this model to predict the number of AIDS deaths among men in 1994. Express answer rounded to the nearest hundred men.
A. 26,000 B. 36,900 C. 25,800 D. 37,000
Mathematics