Math 9 Module 2

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| By Seferguson

Seferguson

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Quizzes Created: 2 | Total Attempts: 1,133

| Attempts: 578

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1/15 Questions

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

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.

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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1
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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2
4.

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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5.

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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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.

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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8.

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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9.

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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10.

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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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.
- 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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0

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Quiz Edited by
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Oct 29, 2009

Quiz Created by
Seferguson

Math 9 Module 2

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

Quiz Preview

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

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

True or false?3-3 = 1 27

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

Evaluate:(4a2b3c4)(3ab2c3)

Which of the following is NOT written in scientific notation?

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

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

4.5 x 107 x 4.5 x 103

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

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

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

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

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

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

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

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

True or false?3^-3 = 1 27

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

Evaluate:(4a²b³c⁴)(3ab²c³)

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

Evaluate: 3a²bIf: a=-4 and b=5

4.5 x 10⁷ x 4.5 x 10³

Write as a single power.(3²)(3³)

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

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