Find dy.y = 
A. 
dx
B. 
C. 
D. 
Answer: D
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Find the value.If F(x, y) = tan-1 
, find Fx(-5, 6) and Fy(-5, 6).
A. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
B. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
C. Fx(-5, 6) = - 
, Fy(-5, 6) = 
D. Fx(-5, 6) = - 
, Fy(-5, 6) = - 
Solve the problem.Betina Gregory owns municipal bonds valued at $7,900, which is 6% of her total investments. What is the value of her total investments? Round to the nearest dollar.
A. $1,317 B. $474 C. $131,667 D. $47,400
Solve the problem.Suppose that sales of a particular brand of appliance satisfy the relationship 
where y represents the number of sales in year x, with 
corresponding to 1992. What does the ordered pair 
mean in the context of the situation? 
A. In 2000, sales of the appliance were 2580. B. In 2000, sales of the appliance were 2370. C. In 2000, sales of the appliance were 4950. D. In 2000, sales of the appliance were 5160.
Subtract.0.02 - (-4.879)
A. 0.098 B. 4.999 C. 4.859 D. 4.899