Make the indicated conversion within American units of weight.13 tons to pounds
A. 2600 lb
B. 208 lb
C. 13,000 lb
D. 26,000 lb
Answer: D
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = xye-y2
A. 
= ye-y2; 
= 2xye-y2(2y2 - 6); 
= 
= e-y2(1 - 2y2)
B. 
= 0; 
= 2xye-y2(2y2 - 3); 
= 
= e-y2(1 - 2y2)
C. 
= 0 ; 
= 2xye-y2(2y2 - 3); 
= 
= e-y2(1 - y2)
D. 
= ye-y2; 
= 2xye-y2(y2 - 1); 
= 
= e-y2(1 - y2)
Mathematics
Given log10 
and log10 
find the logarithm without using a calculator.log10 (181/3)
A. 0.4184 B. 0.7782 C. 1.0787 D. 0.5187
Mathematics
Simplify the given expression.274/3
A. 81 B. 2187 C. 729 D. 243
Mathematics
Decide whether the expression has been simplified correctly.(x6)2 = x8
A. Not simplified correctly B. Simplified correctly
Mathematics