Write as the sum and/or difference of logarithms. Express powers as factors. log18
A. log1811 + log1811
B. log1813 - log1811
C. log1811 - log1813
D. log1811 ÷ log1813
Answer: C
Mathematics
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Find the center of mass of the thin rod with the given density function.Find the center of mass of a thin rod that lies along the semicircle y = 
if the density of the rod is 
A. 
= 
?, 
= 
?
B. 
= 
?, 
= 
?
C. 
= 0, 
= 
?
D. 
= 0, 
= 
?
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Provide an appropriate response.Simplify: -6 - 2
Fill in the blank(s) with the appropriate word(s).
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Solve the problem.Use the figure to find the width W of the rectangle from its length and area A. Determine W when 
A. 8x - 2; 46 yd B. 2x + 8; 20 yd C. 8x + 2; 50 yd D. 8x - 6; 42 yd
Mathematics
Multiply.(8 - 6i)(5 - 9i)
A. -14 + 102i B. -14 - 102i C. 54i2 - 102i + 40 D. 94 + 42i
Mathematics