Find the opposite of the number.-12.8
A. -8.12
B. 12.8
C. -12.8
D. 8.12
Answer: B
Mathematics
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Evaluate the expression.3-2
A. -9
B. 9
C. 
D. 
Mathematics
Use integration by parts to establish a reduction formula for the integral.
A. 
= - 
sinn-1 x cos x - 
B. 
= - 
sinn-1 x cos x + 
C. 
= sinn-1 x cos x + (n - 1) 
D. 
= sinn-1 x cos x - (n - 1) 
Mathematics
Simplify. (Assume all variables are nonzero.)
2
A. 
B. 
C. 
D. 
Mathematics
Solve. Write the answer in simplest form.Given the following diagram, find L, its total length.
x = 
inch, y = 
inch, z = 
inch
A. 
in.
B. 
in.
C. 
in.
D. 
in.
Mathematics