Solve for x.log2
= 4
A. 
B. 
C. 8
D. 16
Answer: B
Mathematics
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Use differentiation to determine whether the integral formula is correct.
dx = -4 cot 
+ C
A. Yes B. No
Mathematics
Multiply.(-7 + 2x)3x
A. -9x B. -21x + 6x2 C. -7x + 6x2 D. 21x + 6x2
Mathematics
Find the difference. 
- 
A. - 
B. 
C. - 
D. 
Mathematics
Find the mean and standard deviation of the specified probability density function.f(x) = 
for [6, 13]
A. ? = 9.50, ? = 1.73 B. ? = 3.45, ? = 2.02 C. ? = 9.50, ? = 2.02 D. ? = 3.50, ? = 2.02
Mathematics