Write the domain of the rational function in interval notation.f(x) = 
A. (-?, 9) ? (9, ?)
B. (-?, -9) ? (-9, ?)
C. (-?, 0) ? (0, ?) ? (-?, -9) ? (-9, ?)
D. (-?, ?)
Answer: B
Mathematics
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Solve the problem.Find the length of the curve y = ln(sin x), ?/3 ? x ? ?/2
A. ln(
)
B. ln(
+ 1)
C. ln(2
)
D. 1 - ln(
)
Mathematics
Simplify the expression. First use the distributive property to remove any parentheses.-3(6r + 8) + 3(5r + 2)
A. 3r + 5 B. -3r - 18 C. -3r + 8 D. -42r
Mathematics
Evaluate the expression.
A. 8593 B. 8568 C. 8583 D. 8540
Mathematics
Find any numbers for which the rational expression is undefined.
A. x = 7
B. x = 
, x = - 
C. x = 21
D. none
Mathematics