A printer has a contract to print 62,000 posters for a political candidate. He can run the posters by using any number of plates from 1 to 30 on his press. If he uses x metal plates, they will produce x copies of the poster with each impression of the press. The metal plates cost $3.00 to prepare, and it costs $15.00 per hour to run the press. If the press can make 1000 impressions per hour, how many metal plates should the printer make to minimize costs? Round your answer to the nearest count of metal plates.
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A. 
B. 
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D. 
E. 
Answer: D
Mathematics
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Round to the place value indicated.21,882,252 to the nearest million
A. 22,000,000 B. 21,882,000 C. 21,000,000 D. 21,900,000
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Find all integer square roots of the given number, if possible.100
A. No integer square roots B. 10 C. 50 D. -10,10
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Use a graphing calculator to find the sum.
+ 
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+ . . . + 
Leave your answer in fractional form.
A. 
B. 
C. 
D. 
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Find all solutions of the equation in the interval [0, 2?).cos 2x = 
A. 
B. 
, 
, 
, 
C. 
D. 
, 
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