Find the distance between the pair of points. Where appropriate, give an approximation to three decimal places.(3.5, -3.3) and (6.9, -3.9)
A. 
? 12.649
B. 
? 3.453
C. 160
D. 
? 7.505
Answer: B
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What will be an ideal response?
Evaluate the given binomial coefficient.
A. 231 B. 332,640 C. 2 D. 462
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
Solve the problem.Mark has $120 to spend on salmon at $5.00 per pound and/or chicken at $3.00 per pound. If he buys s pounds of salmon and c pounds of chicken, the equation 5s + 3c = 120 must be satisfied. How much salmon did Mark buy if he bought 20 pounds of chicken?
A. 7 lb B. 16 lb C. 19 lb D. 12 lb