Find the gradient field F of the function f.f(x, y, z) = z sin (x + y + z)
A. F = -cos xi - cos yj + (sin z - z cos z)k
B. F = -z cos(x + y + z)i - z cos(x + y +z)j + (sin(x + y + z) - zcos(x + y + z))k
C. F = cos xi + cos yj + (sin z + z cos z)k
D. F = z cos(x + y + z)i + z cos(x + y +z)j + (sin(x + y + z) + zcos(x + y + z))k
Answer: D
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Provide an appropriate response.A blueprint calls for a piece of bar stock 
in. long. If a tolerance of ±
in. is allowed, what is the longest permissible measurement for the bar stock?
A. 
B. 
C. 
D. 
Add. Do not use a number line except as a check.-17
+ 
A. -17
B. -18
C. 18
D. -17
Find the GCF for the list of terms.24xy9, 36x4y5, and -108x7y7
A. 12x7y9 B. 216x7y9 C. 6xy D. 12xy5
Solve the problem.The base radius and the height of a cylindrical can tank were measured at 40 cm and 45 cm.The percentage errors in these measurements do not exceed 0.2 for the base radius and 0.5 for the height. Approximate the worst possible percentage error in the volume of the can. Assume that the sides and ends of the can are of negligible thickness.
A. 0.9% B. 1% C. 0.7% D. 1.4%