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December 20, 2014

December 20, 2014

Posted by **mysterychicken** on Thursday, June 17, 2010 at 9:09pm.

21. Suppose inflation of money is at a rate of 3% per year in the US. How much will a $1 candy bar cost in 30 years?

1.03^30 * 1= $2.43

22. Find the next 3 terms of the geometric sequence 4, 10, 25.

125, 625, 3125? ..Not sure about this.

23. Find the next 2 terms of the geometric sequence 50, 40, 32

128, 512? ..Not sure about this either

24. What is the eighth term of the geometric sequence whose first three terms are 3, 6, and 12?

3 * 2^7 = 384?

28. True or False: Linear and exponential functions are exactly alike.

False.

30. What is the y-intercept of the graph of y = 4^x-2?

-2?

Thanks

-MC

- Algebra -
**Reiny**, Thursday, June 17, 2010 at 10:39pm22. the common ratio is 10/4 or 2.5

then 25(2.5) = 62.5

62.5(2.5) = 156.25

156.25(2.5) = .... etc

23. done the same way, find the common ratio 40/50 or 4/5 or .8

the rest are correct

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