Write the binomial expansion of the expression.(3x - 1)5
A. (9x2 - 6x + 1)5
B. 243x5 - 405x4 + 270x3 - 90x2 + 15x - 1
C. 243x5 - 81x4 + 27x3 - 9x2 + 3x - 1
D. 243x5 + 15x4 - 90x3 - 90x2 + 15x - 1
Answer: B
Mathematics
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Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the x-axis and the curve y = 3sin x, 0 ? x ? ?
A. 
= 
, 
= 
B. 
= 
, 
= 
C. 
= 
, 
= 
D. 
= ?, 
= 
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Find the indicated term of the binomial expansion.(x + y)14; term containing y8
A. 6x6y8 B. 360,360x6y8 C. 2,162,160x6y8 D. 3003x6y8
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Rationalize the denominator.
A. 
- 
B. 
C. 
D. 
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Simplify.
x + 
+ 
x + 
A. 
x + 
B. 
x + 
C. 
x + 
D. 
x + 
Mathematics