Determine whether the following is a trinomial square.x2 - 20x + 400
A. Yes
B. No
Answer: B
Mathematics
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Plot the point in the rectangular coordinate system.
A. 
B. 
C. 
D. 
Mathematics
Find the gradient field F of the function f.f(x, y, z) = (x9y2 - y8z3)e-z2
A. F = 9x8y2e-z2i + (2x9y - 8y7z3)e-z2j + y2ze- z2[y6z(2z2 - 3) - 2x9]k B. F = 9x8y2i + (8y7z3 - 2x9y)j + (2z2 - 3)y8z2k C. F = 9x8y2e-z2i + (2x9y - 8y7z3)e-z2j + (3 - 2z2)y8z2e-z2k D. F = 9x8i + (8y7 - 2y)j + 2z4e-z2k
Mathematics
Find an LU factorization of the matrix A.A = 
A. A = 
B. A = 
C. A = 
D. A = 
Mathematics
Solve the equation.
x - 
x = 11
A. {20}
B. 
C. {220}
D. 
Mathematics