Find the gradient field F of the function f.f(x, y, z) = x3e8x + y4z8
A. F = (1 + x)x2e8xi + y3z8j + y4z7k
B. F = (3 + 8x)x2e8xi + 4y3j + 8z7k
C. F = (3 + 8x)x2e8xi + (x3e8x + 4y3z8)j + (x3e8x + 8y4z7)k
D. F = (3 + 8x)x2e8xi + 4y3z8j + 8y4z7k
Answer: D
You might also like to view...
Provide an appropriate response.Rationalize the denominator: 
A. 3 + 2
B. 3 - 
C. 1 + 2
D. 3 - 2
Let x be a number. Translate the expression into an English phrase.x ÷ 67
A. The ratio of 67 to a number B. The quotient of 67 and a number C. Divide 67 by a number. D. Divide a number by 67
Solve the problem.Suppose f(x) = 28.9 + 1.5 log(x + 1) models salinity of ocean water to depths of 
at a certain latitude. x is the depth in meters and f(x) is in grams of salt per kilogram of seawater. Approximate the salinity (to the nearest hundredth) when the depth is 572 meters.
A. 78.21 g/kg B. 81.21 g/kg C. -24.76 g/kg D. 33.04 g/kg
Solve the equation by factoring.(x + 8)(x - 6) = -13
A. {8, -6} B. {5, 7} C. {-7, 5} D. {-8, 6}