Find the cross products u × v and v × u for the pair of vectors u and v.u = 
, v = 
A. u × v = 
, v × u = 
B. u × v = 
, v × u =
C. u × v = 
, v × u = 
D. u × v = 
, v × u = 
Answer: A
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Perform the indicated operation. Where possible, reduce the answer to its lowest terms.
+ 
A. 
B. 
C. 
D. 
Simplify the square root.
A. |x - 3| B. (x - 3)2 C. |x + 3| D. x - 3
Multiply.-16(-16)
A. 2560 B. 272 C. 156 D. 256
Suppose that the profit from the sale of Kandy and Kreams is given by 
dollars, where x is the number of pounds of Kandy and y is the number of pounds of Kreams. How many pounds of Kandy and Kreams must be sold to maximize profit? What is the maximum profit? Round your pounds answers to the nearest whole number. Round your max profit answer to the nearest cent.
?
A. 40 pounds of Kandy, 200 pounds of Kreams, max profit of $661.00 B. 6 pounds of Kandy, 15 pounds of Kreams, max profit of $477.45 C. 12 pounds of Kandy, 30 pounds of Kreams, max profit of $865.80 D. 20 pounds of Kandy, 100 pounds of Kreams, max profit of $1,620.00 E. 60 pounds of Kandy, 300 pounds of Kreams, max profit of $315.34