Math 9 Module 2

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Quizzes Created: 2 | Total Attempts: 1,156
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  • 1/15 Questions

    True or False?(-3)5 will give a negative answer

    • True
    • False
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About This Quiz

This 'Math 9 Module 2' quiz assesses key algebraic skills, focusing on scientific notation, exponents, and basic arithmetic operations. It tests understanding through true\/false and calculation questions, enhancing problem-solving abilities relevant for educational progression.

Math 9 Module 2 - Quiz

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  • 2. 

    A square has an area of 36 m2. What is the length of each side?

    • 30 meters

    • 9 meters

    • 6 meters

    • 25 meters

    Correct Answer
    A. 6 meters
    Explanation
    length of a square's side = square root of the area

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  • 3. 

    Which one of the following shows 13500000 in scientific notation?Note: ^ means the next number is an exponent.so:103 = 10^3

    • 1.35 x 10^7

    • 135 x 10^5

    • 0.135 x 10^4

    • 1.35 x 10^-7

    Correct Answer
    A. 1.35 x 10^7
    Explanation
    the decimal needs to be moved 7 places to the left to get to 1.35 - 7 left is written as 10^7 (positive)

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  • 4. 

    Which of the following is the standard form of this number:1.44 x 10-5

    • 1440000

    • 0.00000144

    • 14400000

    • 0.0000144

    Correct Answer
    A. 0.0000144
    Explanation
    negative exponent means decimal moves to the right 5 places

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  • 5. 

    True or false?3-3 =  1        27

    • True

    • False

    Correct Answer
    A. True
    Explanation
    The given statement is false. The subtraction of 3 from 3 is equal to 0, not 1. Therefore, the correct answer is False.

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  • 6. 

    Evaluate:(4a2b3c4)(3ab2c3)

    • 12a^2b^6c^12

    • 7a^2b^6c^12

    • 12a^3b^5c^7

    • 7a^3b^5c^7

    Correct Answer
    A. 12a^3b^5c^7
    Explanation
    4x3 = 12
    a^2 x a = a^3
    b^3 x b^2 = b^5
    c^4 x c^ 3 = c^7

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  • 7. 

    A square has an area of 36 m2.What is the perimeter of the square?

    • 24 meters

    • 46 meters

    • 36 meters

    • 6 meters

    Correct Answer
    A. 24 meters
    Explanation
    perimeter = length of side x number of sides

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  • 8. 

    Evaluate: 3a2bIf: a=-4 and b=5

    • -240

    • 240

    • -120

    • 120

    • 3 x (-4x-4) x 5

    Correct Answer
    A. 240
    Explanation
    The expression 3a2b can be simplified by substituting the given values of a and b, which are -4 and 5 respectively. So, the expression becomes 3 x (-4 x -4) x 5. When we simplify this expression, we get -240. Therefore, the correct answer is -240.

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  • 9. 

    4.5 x 107 x 4.5 x 103

    • 20.25 x 10^10

    • 9 x 10^10

    • 20.25 x 10^21

    • 20.25 x 10^4

    Correct Answer
    A. 20.25 x 10^10
    Explanation
    4.5 x 4.5 = 20.25
    add the exponents = 10^10

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  • 10. 

    Which of the following is NOT written in scientific notation?

    • 3.4 x 10^5

    • 3.00 x 10^-10

    • 2.21 x 10^3

    • 0.0321 x 10^4

    Correct Answer
    A. 0.0321 x 10^4
    Explanation
    Scientific notation has the main number between 1 and 10. 0.0321 is less than 1.

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  • 11. 

    Write as a single power.(32)(33)

    • 3^6

    • 9^5

    • 3^5

    • 243

    Correct Answer
    A. 3^5
    Explanation
    The given expression is the product of two powers with the same base, 3. When multiplying powers with the same base, we add the exponents. In this case, the exponent of 3 is 5. Therefore, the simplified expression is 3^5.

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  • 12. 

    Use your calculator.  Round to 2 decimal places.     35.6     3.2 x 4.5

    • 50.16

    • 2.47

    • 5.60

    • 49.36

    Correct Answer
    A. 2.47
  • 13. 

    A square has an area of 36 m2.What is the length of the diagonal?

    • 15m

    • 10.78m

    • 6.00m

    • 8.49m

    Correct Answer
    A. 8.49m
    Explanation
    diagonal = square root of (36 + 36)

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  • 14. 

    2.3 x 10-5 x 3.4 x 107   1.8 x 10-4Round to 2 decimal places

    • 4.34 x 10^-2

    • 14.08 x 10^3

    • 7.50 x 10^-4

    • 4.34 x 10^6

    Correct Answer
    A. 4.34 x 10^6
    Explanation
    (2.3 x 3.4)/1.8 = 4.34
    Exponent:-5 + 7 - (-4) = 6

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  • 15. 
    Find the value of x.  Round to 2 decimal places. - ProProfs

    Find the value of x.  Round to 2 decimal places.

    • 8.98

    • 7.21

    • 10.00

    • 3.23

    Correct Answer(s)
    A. 8.98
    A. 7.21
    Explanation
    x = square root of (16 + 36)

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  • Current Version
  • Jan 31, 2025
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 29, 2009
    Quiz Created by
    Seferguson
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