Factor completely.t6 - 15t4
A. t4(t2 + 15)
B. t2(t4 - 15)
C. t4(t2 - 15)
D. t(t5 - 15t3)
Answer: C
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Solve.The radius required for a cone to have a volume V and a height h is given by the equation r = 
1/2.Find the necessary radius to have a cone with the V = 2512 cubic inches and h = 6 inches. Use 
and round to the nearest whole number.
A. 195 in. B. 200 in. C. 20 in. D. 25 in.
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
Simplify the complex rational expression using Method I or Method II.
A. 
B. 0
C. -9
D. -1
Find the indicated roots.Sixth roots of 1; standard form
A. 1, 
+ 
i, - 
+ 
i, -1, - 
- 
i, 
- 
i
B. i, 
+ 
i, - 
+ 
i, -i, - 
- 
i, 
- 
i
C. 1, 
+ 
i, - 
+ 
i, -1, - 
- 
i, 
- 
i
D. i, 
+ 
i, 
- 
i, -i, - 
- 
i, - 
+ 
i