Name:    Algebra 2 - Chapter 11 Practice Test

1

Find for the sequence 5, –1, –7, –13, –19, ...
 A) –19 C) –79 B) –73 D) –67

2

The table shows the predicted growth of a particular bacteria after various numbers of hours. Write the rule for the sequence of the number of bacteria.
 Hours (n) 1 2 3 4 5 Number of Bacteria 22 44 66 88 110
 A) C) B) D)

3

Is the sequence arithmetic? If so, identify the common difference. 8, 10, 16, 26, ...
 A) yes, 2 B) yes, –2 C) yes, 8 D) no

4

Is the sequence geometric? If so, identify the common ratio.  2, 10, 50, 250, ...
 A) yes, 5 B) yes, –5 C) yes, 10 D) no

5

Write the rule for the sequence.
 A) C) B) D)

6

Find the fifth term in the sequence.
 A) 10 C) –1250 B) –80 D) 6250

7

The sequence 30, 33, 36, 39, 42, ..., 60 has 11 terms. Evaluate the related series.
 A) 495 C) 435 B) 240 D) 465

8

Evaluate the series 3 + 6 + 12 + ... to .
 A) 381 B) 186 C) 93 D) 189

9

Evaluate the infinite geometric series.
 A) 432 B) 6 C) 14.4 D) 86.4

10

Write the expression as a single logarithm.
 A) B) C) D)

11

Solve .
 A) B) C) D)

12

Solve . Round to the nearest hundredth if necessary.
 A) 26 B) 3.85 C) 650 D) 0.15

13

Condense:
 A) B) C) D)

14

Simplify:
 A) C) B) D)

15

Simplify:
 A) C) B) D)

16

Solve:
 A) B) C) D)

17

Solve:
 A) B) C) D)

18

Two urns contain white balls and yellow balls. The first urn contains 5 white balls and 2 yellow balls and the second urn contains 6 white balls and 7 yellow balls. A ball is drawn at random from each urn. What is the probability that both balls are white?
 A) B) C) D)

19

Which is a simplified form of ?
 A) C) B) D)

20

The probability that a city bus is ready for service when needed is 82%. The probability that a city bus is ready for service and has a working radio is 69%. Find the probability that a bus chosen at random has a working radio given that it is ready for service. Round to the nearest tenth of a percent.
 A) 11.9% B) 13.0% C) 84.1% D) 88.4%