Test the vector field F to determine if it is conservative.F = -cos x cos yi + sin x sin yj - sec2 zk
A. Not conservative
B. Conservative
Answer: B
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Solve the problem.One card is selected from a deck of cards. Find the probability of selecting a black card or a queen.
A. 
B. 
C. 
D. 
Solve.The MetroCity electric company is planning to produce a new lamp. For the first year, the fixed costs for setting up production are $22,000. The variable costs for producing each lamp are $19. The revenue for each lamp is $24. Find the total revenue R(x) from the sale of x lamps.
A. R(x) = 24x B. R(x) = 24x - 22,000 C. R(x) = 22,000 + 24x D. R(x) = 5x
Simplify without using a calculator.811/4
A. 243 B. 3 C. 12 D. 36
Find the general form of the equation of the the circle.Center at the point (-4, -3); containing the point (-3, 3)
A. x2 + y2 - 6x + 6y - 12 = 0 B. x2 + y2 + 6x - 6y - 17 = 0 C. x2 + y2 + 8x + 6y - 12 = 0 D. x2 + y2 + 6x + 8y - 17 = 0