Solve the problem.In a game, each red token represents -1 point and each blue token represents +1 point. How many more points does a player with 10 blue tokens have than a player with 14 red tokens?
A. 4
B. 24
C. -24
D. -4
Answer: B
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
Rationalize the numerator of each fraction.
A. 
B. 
C. 
D. 
Mathematics
Indicate whether the statement is true always, sometimes, or never.The sum of two imaginary numbers is an imaginary number.
A. Always B. Sometimes C. Never
Mathematics
Decide whether or not the correct factored form of the polynomial is given.10z2 + 9z - 9(10z + 3)(z - 3)
A. Yes B. No
Mathematics