Identify the values for which the rational expression is undefined.
A. y = 8 or y = -8
B. y = 2
C. y = 64
D. y = 8
Answer: A
Mathematics
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Which type of average is not the best choice for the given data? ? Data Values Frequency 6 3 8 3 9 4 10 2 17 1 ? ?
A. ?The mean B. ?The median C. ?The mode D. ?Neither the median nor the mode E. ?All averages are ok to use
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Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.(a + 1) + (a + b) + (a + b2) + . . . + (a + bn)
A. 
B. 
C. 
D. 
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 x - cos x sinx = cos3 x
A. 
B. ?
C. 0
D. 
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Divide the monomials.
A. 
B. x3y6z3
C. 
D. 
Mathematics