Write the sum in summation notation.2 + 
+ 
+ 
+ . . . + 
A. 
B. 
C. 
D. 
Answer: B
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Find the angle.tan-1 0
A. - 
B. 1
C. 0
D. -1
Add or subtract as indicated.
+ 
A. 
B. 
C. 
D. 
Solve the problem.One digit from the number 3,272,882 is written on each of seven cards. What is the probability of drawing a card that shows 3, 2, or 7?
A. 
B. 
C. 
D. 
Solve the problem.Daniel decides to feed his cat a combination of two foods: Max Cat and Mighty Cat. He wants his cat to receive four nutritional factors each month. The amounts of these factors (a, b, c, and d) contained in one bag of each food are shown in the chart, together with the total amounts needed. 
The costs per bag are $43 for Max Cat and $37 for Mighty Cat. How many bags of each food should be blended to meet the nutritional requirements at the lowest cost? Set this up as a linear programming problem in the following form:Minimize cTx subject to Ax ? b and x ? 0. Do not find the solution.
A. Let x1 be the number of bags of Max Cat and x2 the number of bags of Mighty Cat.
Then b = 
, x = 
, c = 
, and A = 
B. Let x1 be the number of bags of Max Cat and x2 the number of bags of Mighty Cat.
Then b = 
, x = 
, c = 
, and A = 
C. Let x1 be the number of bags of Max Cat and x2 the number of bags of Mighty Cat.
Then b = 
, x = 
, c = 
, and A = 
D. Let x1 be the number of bags of Max Cat and x2 the number of bags of Mighty Cat.
Then b = 
, x = 
, c = 
, and A = 