AnswersAR-Algebra II BCumulative Exam

Cumulative Exam — Cumulative exam Answers

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1
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Consider the system of linear equations and the matrix equations below. What is the value of x in the equation?

Question illustration
A
-36
B
3
C
7
D
64
2
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What is the solution of ?

Question illustration
A
x = 5
B
x = 13
C
x = 20
D
x = 328
3

What is the common difference in the following arithmetic sequence?

Question illustration
A
mc003-2.jpg
Option A
B
mc003-3.jpg
Option B
C
mc003-4.jpg
Option C
D
mc003-5.jpg
Option D
4

What is the simplified form of the following expression?

Question illustration
A
StartFraction RootIndex 3 StartRoot 4 x EndRoot Over 5 EndFraction
Option A
B
StartFraction RootIndex 3 StartRoot 20 x EndRoot Over 5 EndFraction
Option B
C
StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 5 EndFraction
Option C
D
StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 125 EndFraction
Option D
5

What is the solution of ?

Question illustration
A
x = –2500
B
x = –50
C
x = –2.5
D
no solution
6

The box plots below show the ages of college students in different math courses. Math 1 Math 2Which statement is true?

Question illustration
A
The median age of the students in Math 1 is greater than the median age of the students in Math 2.
B
The median age of the students is Math 1 is less than the median age of the students in Math 2.
C
The mean and median age are most likely the same for both sets of data.
D
The mean and median age are more likely to be the same for the students in Math 1.
7

Which of the following is true regarding the solution to the logarithmic equation below?

Question illustration
A
is not a true solution because
Option A
B
is not a true solution because
Option B
C
is a true solution because
Option C
D
is a true solution because
Option D
8

What is the product of ?

Question illustration
A
StartFraction 7 Over m Superscript 5 EndFraction
Option A
B
7m6
C
StartFraction 10 Over m Superscript 5 EndFraction
Option C
D
10m6
9

What is the solution to

Question illustration
A
mc014-2.jpg
Option A
B
mc014-3.jpg
Option B
C
mc014-4.jpg
Option C
D
mc014-5.jpg
Option D
10

Which survey is most likely affected by bias?

A
a survey of teenagers about their favorite colors
B
a survey of students about vacation policies in a school district
C
a survey of supermarket shoppers about products they would like to see added
D
a survey of bike riders on whether they wear helmets
11

Researchers compare the body composition of cattle feeding on a grain diet with that of cattle feeding on a grass diet. This method of gathering data is classified as

A
a census.
B
a sample survey.
C
an experiment.
D
an observational study.
12

What is the difference?

Question illustration
A
StartFraction x squared + 4 x minus 1 Over x (x + 2) EndFraction
Option A
B
StartFraction x squared + 4 x + 1 Over x (x + 2) EndFraction
Option B
C
StartFraction 4 Over negative 1 (x squared + x minus 2) EndFraction
Option C
D
StartFraction x squared + 6 x + 1 Over x (x + 2) EndFraction
Option D
13

What is the value of y in the sequence below?

Question illustration
A
–6
B
–3
C
3
D
6
14

What is the solution to the equation ?

Question illustration
A
x = –3
B
x = –3 and x = 0
C
x = 0 and x = 3
D
x = 3
15

A four-person committee is chosen from a group of eight boys and six girls.If students are chosen at random, what is the probability that the committee consists of all boys?

A
StartFraction 4 Over 1001 EndFraction
Option A
B
StartFraction 15 Over 1001 EndFraction
Option B
C
Option
Option C
D
Option
Option D
16

What is the explicit formula for the arithmetic sequence –7.5, –9, –10.5, –12, ....?

A
mc016-1.jpg
Option A
B
mc016-2.jpg
Option B
C
mc016-3.jpg
Option C
D
mc016-4.jpg
Option D
17

Graph the function f(x) = x3 – 3x – 2. Based on the graph, which value for x is a double root of this function?

A
–2
B
–1
C
1
D
2
18

Which expression is equivalent to ?

Question illustration
A
x Superscript one-half Baseline y Superscript 4
Option A
B
x Superscript one-eighth Baseline y Superscript 8
Option B
C
x Superscript one-fourth Baseline y Superscript 8
Option C
D
x Superscript one-fourth Baseline y Superscript 4
Option D
19

The fifth term of a geometric sequence is 781.25. Each term of the sequence is of the value of the following term. Which recursive formula represents the situation?

Question illustration
A
mc019-2.jpg
Option A
B
mc019-3.jpg
Option B
C
mc019-4.jpg
Option C
D
mc019-5.jpg
Option D
20

Which expression is equivalent to –8?

A
–2–3
B
(Negative one-half) Superscript negative 3
Option B
C
(one-half) Superscript negative 3
Option C
D
2–3

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