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Ch. 8 Test Exponent Properties And Scientific Notation

31 Questions
Ch. 8 Test Exponent Properties And Scientific Notation

Exponent Properties and Scientific Notationlinear systems

Questions and Answers
  • 3. 
    Without graphing, decide whether the system has one solution, no solution, or infinitely many solutions.y = –3x + 4y = 3x + 8
  • 4. 
  • 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. 
    • 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. 
    • 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)