Find the least common denominator (LCD).
, 
, 
A. (k - 3)(k - 8)3(k + 2)(k + 1)
B. (k - 3)(k + 2)(k + 1)
C. (k - 3)(k - 8)(k + 2)
D. (k - 3)(k - 8)(k + 2)(k + 1)
Answer: D
Mathematics
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Find the exact value by using a half-angle identity.sin 
A. - 
B. 
C. - 
D. 
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Perform the indicated operations. Write the answer using only positive exponents. Assume all variables represent positive real numbers.
A. y1/2
B. y
C. y9/8
D. 
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Polar coordinates of a point are given. Find the rectangular coordinates of the point.
A. 
B. 
C. 
D. 
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Write as the sum and/or difference of logarithms. Express powers as factors. log9
A. 
log9x + 
log9y - 2log9z
B. 
log9x + 
log9y - 
log9z
C. 
log9x ? 
log9y ÷ 2log9z
D. 7log9x + 10log9y - 2log9z
Mathematics