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161 Practice Test

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Last updated about 5 years ago
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After you have submitted, and checked your answers, work on DeltaMath.

Chapter 10 PRACTICE TEST

  • Please do the problems, then submit. You may go back in to check (and change) your answers.

  • Explicit formulas are on the whiteboard.

  • Remember for recursive to reference the previous number, a_{n-1}

  • If you didn't finish your homework (DeltaMath) yet, please finish it tonight.

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1.

The first three terms of a sequence are given. Write an explicit formula for the terms.

10, 14, 18, ...

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2.

Find the 49th term of [1], round to the nearest thousandth if necessary

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3.

The first three terms of a sequence are given. Write an explicit formula for the terms.

16, 48, 144, ...

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4.

Find the sixth term of [3] Round to the nearest thousandth if necessary

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5.

If a_1=6 and a_n=a_{n-1}+3 find the value of a_4

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6.

If a_1=3 and a_n=(a_{n-1})^2-5 find the value of a_4

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7.

If a_1=9 and a_n=na_{n-1}+4 find the value of a_3

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8.

If a_n=2 and a_{n+1}=(a_n)^2-2 find the value of a_3

1
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9.
1
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10.
1
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11.
1
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12.
1
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1
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14.
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15.

Write an explicit formula that represents the sequence defined by the following recrusive formula:

a_1=5 and a_n=a_{n-1}+3