# Ch. 8 Test Exponent Properties And Scientific Notation

31 Questions

Exponent Properties and Scientific Notationlinear systems

• 1.
Write with only one exponent.
• 2.
Which graphing calculator screen shows the solution of the system?y = –x + 3y = 6x – 5
• 3.
Without graphing, decide whether the system has one solution, no solution, or infinitely many solutions.y = –3x + 4y = 3x + 8
• 4.
Evaluate  for x = –3 and y = 2.
• 5.
Simplify 7–2.
• A.

49

• B.

–14

• C.

1/49

• D.

1/14

• 6.
Simplify –6–3
• A.

1/216

• B.

–1/216

• C.

1/18

• D.

–1/18

• 7.
Evaluate b–3 for b = 3
• A.

27

• B.

1/ 9

• C.

1/ 27

• D.

–27

• 8.
Write 2 • 10–3 as a decimal
• A.

2000 #

• B.

20,000

• C.

0.002

• D.

0.020

• 9.
Write 10–5 as a decimal
• A.

10,000

• B.

1,000,000

• C.

0.00001

• D.

0.0010

• 10.
Simplify 0.7(2.8 × 106). Write the answer using scientific notation.
• A.

19.6 × 10^6

• B.

1.96 × 10^6

• C.

19.6 × 10^5

• D.

1.96 × 10^5

• 11.
Which list has the numbers in order from least to greatest?
• A.

5.4 × 10^4, 5.4 × 10^3, 4.5 × 10^4

• B.

5.4 × 10^3, 4.5 × 10^4, 5.4 × 10^4

• C.

5.4 × 10^3, 5.4 × 10^4, 4.5 × 10^4

• D.

4.5 × 10^4, 5.4 × 10^3, 5.4 × 10^4

• 12.
Which number is written in scientific notation?
• A.

0.4 × 10^–5

• B.

68 × 10^3

• C.

12 × 10^2

• D.

5.3 × 10^–7

• 13.
Simplify 5(2.7 × 10–4). Write the answer using scientific notation.
• A.

13.5 × 10^–2

• B.

1.35 × 10^–3

• C.

13.5 × 10^–4

• D.

1.35 × 10^–5

• 14.
Simplify (0.4 × 10–6)(0.7 × 10–2). Write the answer in scientific notation.
• A.

28 × 10^–9

• B.

0.28 × 10^–8

• C.

2.8 × 10^–9

• D.

2.8 × 10^

• 15.
Simplify –3x2(6x3 + 2x)
• A.

–18x^5 – 6x^3

• B.

–6x^5 – x^3

• C.

–6x^6 – x^2

• D.

–18x^6 – 6x^2

• 16.
Simplify –4x3 • 2y–2 • 5y5 • x–8
• A.

–x to the 5th power over 40y cubed

• B.

–5y cubed over 2x to the 5th power

• C.

–2x to the 5th power over 5y cubed

• D.

–40y cubed over x to the 5th power

• 17.
. Simplify (2.3 × 10–5)(1.4 × 10–6)
• A.

3.22 × 10^–11

• B.

32.2 × 10^–12

• C.

3.7 × 10^–11

• D.

3.22 × 10^30

• 18.
Simplify (–k2)3.
• A.

# –k8 x

• B.

k^5

• C.

–k^6

• D.

–k^5

• 19.
Simplify (j5)6
• A.

j^30

• B.

J^11

• C.

j^5/6

• D.

J^15,625

• 20.
Simplify (2cd2)3(cd)6
• A.

2c^9 d^12

• B.

2c^4 d^12

• C.

8c^9 d^12

• D.

8c^9 d^8

• 21.
Simplify (11p4)–2
• A.

121p^2

• B.

1 / (121p^8)

• C.

P^2 / 121

• D.

11p^2

• 22.
Simplify . Write the answer in scientific notation.
• A.

6 × 10^4

• B.

6 × 10^2

• C.

6 × 10^–4

• D.

6 × 10^3

• 23.
Simplify
• A.

D^12 / e^2

• B.

D^7/e^6

• C.

D ^12/e^8

• D.

D ^7/ e^2

• 24.
Simplify (–)–3
• A.

27/64

• B.

–27/64

• C.

–64/27

• D.

64/27

• 25.
Simplify d2(d4)5
• A.

D^18

• B.

D^11

• C.

D^22

• D.

D^13

• 26.
Chase got better at a new video game. He scored 12 points on Monday, and he doubled his score each day thereafter. How many points did he score on Sunday?
• 27.
Simplify 4–6 • 40
• A.

4096

• B.

1 / 4096

• C.

-24

• D.

0

• 28.
Which ordered pair is a solution of the system?–2x – 4y = 26x – 6y = 48
• A.

(4, –1)

• B.

(5, –3)

• C.

(1, –5)

• D.

(7, –4)

• 29.
Solve by elimination.5x + 8y = –297x – 2y = –67
• A.

(–1, –3)

• B.

(–10, 21/ 8)

• C.

(–9, 2)

• D.

(–7, 9)

• 30.
Which system has infinitely many solutions?
• A.

3x – 3y = 3 x – y = 1

• B.

4x + 2y = 1 2x – y = 2

• C.

X + y = –1 x – y = 1

• D.

2x – y = –2 x – 2y = 2

• 31.
Solve the system using substitution.3g + 2h = 7h = –3g + 11
• A.

(6, –7)

• B.

(5, –4)

• C.

(–4, 19/2)

• D.

(6, –3)

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