Find the flux of the vector field F across the surface S in the indicated direction.F = 3i + y10z3j - y3z10k , S is the rectangular surface x = 0, -4 ? y ? 4, and -9 ? z ? 9, direction i
A. 216
B. 0
C. 432
D. 144
Answer: C
Mathematics
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Solve the problem.A building has an entry with the shape of a parabolic arch 78 ft high and 40 ft wide at the base. Find an equation for the parabola if the vertex is put at the origin of the coordinate system.A = 78 ftB = 40 ft
A. x2 = -5.1y B. y2 = -5.1x C. y2 = -20.5x D. x2 = -20.5y
Mathematics
Solve for x and graph the solution.0.6x + 1.1 > 0.9x - 0.1
A. x < -4
B. x > 4
C. x > -4
D. x < 4
Mathematics
Specify the domain of the function.f(x) = 7x2 + 9x - 7
A. All real numbers B. x < 0 C. x ? 0 D. x > 0
Mathematics
Graph the system of inequalities.
+ 
? 1
+ 
? 1
A. 
B. 
C. 
D. 
Mathematics