Construct a truth table for the statement.~t ? (~t ? s)
A. 
B. 
C. 
D. 
Answer: A
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Factor completely.x2 + 18x + 81
A. Prime B. (x + 9)2 C. (x - 9)2 D. (x + 9)(x - 9)
Write the terms for the partial fraction decomposition of the rational function. Do not solve for the constants.
A. 
+ 
+ 
+ 
B. 
+ 
C. 
+ 
+ 
+ 
D. 
+ 
+ 
Use the unit circle to find the six trigonometric functions of 
.
?
A. ?
B. ?
C. ?
D. ?
E. ?
National Business Machines manufactures two models of fax machines: A and B. Each model A costs $125 to make, and each model B costs $150. The profits are $32 for each model A and $43 for each model B fax machine. The total number of fax machines demanded per month does not exceed 2,600 and the company has earmarked no more than $550,000/month for manufacturing costs. How many units of each model should National make each month in order to maximize its monthly profits? What is the optimal profit?
