Expand and simplify the given expression by use of the binomial formula.(a2 - 2b)6
A. -a12 + 12a10b - 60a8b2 + 160a6b3 - 240a4b4 + 192a2b5 - 64b6
B. a12 - 6a10b + 15a8b2 - 20a6b3 + 15a4b4 - 6a2b5 + b6
C. a12 - 12a10b + 60a8b2 - 160a6b3 + 60a4b4 - 12a2b5 + b6
D. a12 - 12a10b + 60a8b2 - 160a6b3 + 240a4b4 - 192a2b5 + 64b6
Answer: D
Mathematics
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Find the work done by F over the curve in the direction of increasing t.F = - 
i + 
j + 
k; C: r(t) = 
i + 
j + 7tk, 0 ? t ? 
A. W = 
+ 
?2
B. W = 
+ 
?2
C. W = 
+ 
?2
D. W = 
+ 
?2
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Evaluate the integral by changing the order of integration in an appropriate way.
A. 
B. 
C. 
D. 
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Make the indicated temperature conversion. Round answers to one decimal place if necessary.Convert 23°F to Celsius.
A. 73.4°C B. 19.2°C C. -5.0°C D. 9.4°C
Mathematics
Determine the least common denominator (LCD). 
and 
A. 30 B. 224 C. 112 D. 2
Mathematics