Find the gradient field F of the function f.f(x, y, z) = 
A. F = - 
i - 
j - 
k
B. F = 
i + 
j + 
k
C. F = - 
i - 
j - 
k
D. F = 
i + 
j + 
k
Answer: C
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Decide whether the argument is an example of inductive or deductive reasoning.47 + 41 = 88, 31 + 29 = 60, 7 + 47 = 54. The sum of two prime numbers is even.
A. Inductive B. Deductive
Solve the problem.A car traveled 318 miles on a trip. During 87 miles of the trip, the car traveled through the city and had gas mileage that was 4 fewer miles per gallon than the gas mileage on the highway. If the total amount of gasoline used for the trip was 10 gallons, find the gas mileage of the car on the highway.
A. 33 miles per gallon B. 37 miles per gallon C. 25 miles per gallon D. 29 miles per gallon
Solve the system by the addition method. If there is no solution or an infinite number of solutions, so state. Use set notation to express the solution set.
A. {(1, 4)} B. {(4, 1)} C. {(4, 2)} D. no solution; ?
Simplify the decimal expression.177.87 + 2.34
A. 180.11 B. 180.10 C. 180.21 D. 180.20