Use properties of logarithms to expand the logarithmic expression as much as possible. Where possible, evaluate logarithmic expressions without using a calculator.log2
A. log27 - log25
B. log25 - log27
C. 
D. log27 + log25
Answer: A
Mathematics
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Evaluate the integral. 
A. 
ln 
+ 
ln 
+ C
B. 
ln 
- 
ln 
+ C
C. 
et ln 
- 
et ln 
+ C
D. 
ln 
- 
ln 
+ C
Mathematics
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3 tan t, y = 4 sec t; 0 ? t ? 2?
A. y = x2 - 9; for x in -3 ? x ? 3
B. 
+ 
= 1; for x in -? < x < ?
C. 
- 
= 1; for x in -? < x < ?
D. y = 4
; for x in -? < x < ?
Mathematics
Express the number in scientific notation.0.0000084817
A. 8.4817 × 10-5 B. 8.4817 × 10-7 C. 8.4817 × 106 D. 8.4817 × 10-6
Mathematics
Find f(x) and g(x) such that h(x) = (f ? g)(x).h(x) = 
A. f(x) = 
, g(x) = - 
B. f(x) = 
, g(x) = x - 6
C. f(x) = 
, g(x) = x2 - 6
D. f(x) = 
, g(x) = x2 - 6
Mathematics