Solve for any valid real roots.x4 - 27x2 + 50 = 0
A. x = 25, x = 2
B. x = 5, x = 
C. x = ±5, x = ± i
D. x = ±5, x = ±
Answer: D
Mathematics
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Write a fraction to represent the shaded part of the figure.
A. 
B. 
C. 
D. 
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Provide an appropriate response.What is the range of the function y = 
x?
A. [0, ?) B. (-?, 0) C. (-?, ?) D. (0, ?)
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Use Bayes' rule to find the indicated probability.Two stores sell a certain MP3 players. Store A has 34% of the sales, 5% of which are of defective items, and store B has 66% of the sales, 1% of which are of defective items. The difference in defective rates is due to different levels of pre-sale checking of the product. A person receives a defective item of this product as a gift. What is the probability it came from store B?
A. 0.275 B. 0.22 C. 0.5667 D. 0.7083
Mathematics