Find the matrix product when possible.
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Find the gradient field F of the function f.f(x, y, z) = (x7y2 - y5z3)e-z2
A. F = 7x6y2e-z2i + (2x7y - 5y4z3)e-z2j + (3 - 2z2)y5z2e-z2k B. F = 7x6y2e-z2i + (2x7y - 5y4z3)e-z2j + y2ze- z2[y3z(2z2 - 3) - 2x7]k C. F = 7x6i + (5y4 - 2y)j + 2z4e-z2k D. F = 7x6y2i + (5y4z3 - 2x7y)j + (2z2 - 3)y5z2k
Mathematics
Provide an appropriate response.
How many students attended 2 games?
A. 3 B. 1 C. 2 D. 4
Mathematics
Write the fraction in lowest terms.
A. 
B. 
C. 25
D. 
Mathematics
Solve.One pump can drain a pool in 7 minutes. When a second pump is also used, the pool only takes 4 minutes to drain. How long would it take the second pump to drain the pool if it were the only pump in use?
A. 9
min
B. 2
min
C. 25 min
D. 
min
Mathematics