Find the derivative.y = 2x2 + 7x + 4ex
A. 4x + 7 + ex
B. 2x + 4ex
C. 4x + 7 + 4ex
D. 4x + 4ex
Answer: C
Mathematics
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Use Gauss's Divergence Theorem to calculate 
.F(x, y, z) = yzi + xzj + xyk, S is the hemisphere 0 ? z ? 
A. 
?
B. 
?
C. 1
D. 0
Mathematics
Solve the system of equations. x + y + z = 5 x - y + 3z = -15x + y + z = 21
A. x = -1, y = 2, z = 4 B. x = 4, y = 2, z = -1 C. x = -1, y = 4, z = 2 D. Inconsistent
Mathematics
Use a calculator to approximate the root to the nearest thousandth.
A. 0.11 B. 1.100 C. 0.001 D. 0.011
Mathematics
Graph the solution set of the system of inequalities.y ? 4x + 3y ? -x - 3
A. 
B. 
C. 
D. 
Mathematics