Use power regression to model the following data. Use two digits of accuracy for the coefficient and for the power.
x 2.18 2.41 4.7 4.96 5.14 y 16.43 17.41 54.26 62.8 64.49?
A. ?
B. ?
C. 
D. ?
Answer: C
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Solve.y2 - x2 = 11x - 5 = y
A. 
B. 
C. 
D. 
Find the center of mass of a thin plate of constant density covering the given region.The region bounded by the x-axis and the semicircle y = 
A. 
= 
, 
= 0
B. 
= 0, 
= 
C. 
= 
, 
= 
D. 
= 0, 
= 
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
Multiply or divide.
A. 
B. - 
C. - 
D. - 