Multiply.(3 - 11r)(3 + 11r)
A. 9 - 121r2
B. 9 - 66r - 121r2
C. 9 + 66r - 121r2
D. 9 - 11r2
Answer: A
Mathematics
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Find the length of the curve.y = ln(sin x) from x = ?/6 to x = ?/4
A. ln(2 - 
)
B. ln
C. ln
D. ln(
- 1)
Mathematics
Use the tree diagram to find the requested probability.Find P(X?A). Give your answer as a decimal and round your answer to three decimal places if necessary. 
a = 0.9, b = 0.1, c = 0.8, d = 0.2, e = 0.6, f = 0.4
A. 0.514 B. 0.72 C. 0.923 D. 0.8
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Simplify the radical. Assume that all variables represent positive real numbers.
A. 
B. 
C. 20
D. 
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Evaluate.
2
A. 
B. 
C. 2
D. 
Mathematics