# algebra

Identify a pattern and find the next number in the pattern -0.8,-3.2,-12.8,51.2

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1. If the 2nd term is really +3.2, then the next one is -204.8

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2. If you sequence are :

- 0.8 , - 3.2 , - 12.8 , - 51.2

then:

a1 = - 0.8 = - 0.2 * 4 = - 0.2 * 4 ^ 1

a2 = - 3.2 = - 0.2 * 16 = - 0.2 * 4 ^ 2

a3 = - 12.8 = - 0.2 * 64 = - 0.2 * 4 ^ 3

a4 = - 51.2 = - 0.2 * 256 = - 0.2 * 4 ^ 4

So:

an = - 0.2 * 4 ^ n

a5 = - 0.2 * 4 ^ 5 = - 0.2 * 1024 = - 204.8

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3. 2 2/3,3 1/2, ,5 1/6,6

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4. what is the 11th number in this pattern below?
0, -7, -14, -21,...

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5. Just press respond to this question, hit the thing that says "your response" put your answer in and submit your response preferable today I have been working on this question for a long time but can not figure it out please help

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Practice: Semester A Review Online Practice
Algebra 2 A / 8. Semester A Review and Exam / 8.1. Semester A Review

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3. A
4. C
5. B
6.A
7. D
8. A
9. D
10.A
11. A
12. C
13. D
14. C
15. B
16. B

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