Find the gradient field of the function.f(x, y, z) = x5e3x + y6z3
A. ?f = (1 + x)x4e3xi + y5z3j + y6z2k
B. ?f = (5 + 3x)x4e3xi + (x5e3x + 6y5z3)j + (x5e3x + 3y6z2)k
C. ?f = (5 + 3x)x4e3xi + 6y5z3j + 3y6z2k
D. ?f = (5 + 3x)x4e3xi + 6y5j + 3z2k
Answer: C
Mathematics
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A. 64x3 + 144x2 + 108x + 27 B. 64x6 + 144x4 + 108x2 + 27 C. (16x4 + 24x2 + 9)3 D. 256x8 + 64x6 + 144x4 + 108x2 + 27
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Replace the polar equation with an equivalent Cartesian equation.r cos ? = 7
A. 7y = 1 B. y = 7 C. x = 7 D. 7x = 1
Mathematics
Provide an appropriate response. A warehouse has a stack of boxes that are all the same size and the entire stack measures 42 feet. If each box is 2 feet 4 inches tall, how many boxes are in the stack?
A. 24 boxes B. 2 boxes C. 36 boxes D. 18 boxes
Mathematics
Graph the function.y = sec x
A. 
B. 
C. 
D. 
Mathematics