Evaluate the root, if possible.- 
A. 0.6
B. Not real
C. -0.06
D. -0.6
Answer: D
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How many square feet of sheet metal are needed for the sides of the cylindrical tank shown in the illustration? (Allow 3 in. for seam overlap.)
?
?
A. 49 ft 2 B. 94 ft 2 C. 120 ft 2 D. 97 ft 2 E. 190 ft 2
Solve.Mike works on commission selling electronic equipment. The linear function 
describes his annual income I when his total sales for the year are s. What is Mike's annual salary if he sells $500,000 in electronic equipment for the year?
A. $31,700 B. $54,200 C. $26,460 D. $279,200
Write the product as a sum or difference containing only sines or cosines.cos 
cos 
A. 
[cos(2?) + cos(3?)]
B. 
[cos(6?) - sin(4?)]
C. 
[cos(3?) - sin(2?)]
D. 
cos2(5?)
Solve the problem.Your company uses the quadratic model y = -11x2 + 350x to represent how many units (y) of a new product will be sold (x) weeks after its release . How many units can you expect to sell in week 20?
A. 7220 units B. 6780 units C. 11,400 units D. 2600 units