Solve.-4x - 2 = 5 + 5x
A. x = - 
B. x = 
C. x = 
D. x = - 
Answer: A
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Replace the Cartesian equation with an equivalent polar equation.x2 + y2 - 4x = 0
A. r sin2? = 4 cos ? B. r = 4 sin ? C. r cos2? = 4 sin ? D. r = 4 cos ?
Use the graph and formula for f(x) to find the average rates of change of f from -4 to -1 and from 1 to 4.f(x) = 2x - 4
A. 2; 2 B. -2; 2 C. 4; 4 D. -2; -2
Find the missing length to the nearest tenth.
A. b = 3.0 ft B. b = 16.2 ft C. b = 13.7 ft D. b = 94.5 ft
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