Chapter 5 Extra Credit
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Simplify (3x^0)^2(2x^4)
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X^4
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12x^4
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18x^6
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18x^4
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This quiz, titled 'Chapter 5 Extra Credit', includes various algebraic problems such as simplification, scientific notation, and factoring.
(37).webp "Chapter 5 Extra Credit - Quiz")
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- 2.
Scientists have determined that the speed at which light travels is approxiamtely 300,000,000 meters per second. Express this speed in scientific notation.
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3 x 10^7 m/s
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3 x 10^8 m/s
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3 x 10^(-8) m/s
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30 x 10^(-7) m/s
Correct Answer
A. 3 x 10^8 m/sExplanation
The speed of light is approximately 300,000,000 meters per second. In scientific notation, this can be expressed as 3 x 10^8 m/s.Rate this question:
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- 3.
Simplify (5m - 9) + (4m + 2)
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9m - 11
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M - 11
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9m - 7
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20m^2 - 18
Correct Answer
A. 9m - 7Explanation
The given expression is (5m - 9) + (4m + 2). To simplify this expression, we can combine like terms. The like terms in this expression are the terms with the variable m. Adding the coefficients of these terms, we get 5m + 4m = 9m. Then, we add the constant terms -9 and 2, which gives us -7. Therefore, the simplified expression is 9m - 7.Rate this question:
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- 4.
Simplify (x^2 - 2x - 35) / (x + 5)
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X^2 - x - 30
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X - 7
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X + 5
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X^3 + 3x^2
Correct Answer
A. X - 7Explanation
To simplify the expression (x^2 - 2x - 35) / (x + 5), we can factor the numerator as (x - 7)(x + 5). Then, we can cancel out the common factor of (x + 5) in the numerator and denominator, leaving us with the simplified expression x - 7.Rate this question:
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- 5.
Factor m^2 + 9m + 14 completely.
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M(m + 23)
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(m + 14)(m + 1)
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(m + 7)(M + 2)
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M(m + 9) + 14
Correct Answer
A. (m + 7)(M + 2)Explanation
The given expression is a quadratic trinomial in the form of m^2 + 9m + 14. To factor it completely, we need to find two binomials whose product equals the given trinomial. By using the factoring method, we can determine that the correct factorization is (m + 7)(m + 2).Rate this question:
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- 6.
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A
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B
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C
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D
Correct Answer
A. D -
- 7.
Simplify (t^2 + t -6) / (t^2 -7t + 10). Assume that the denominator is not equal to sero.
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(t + 3) / (t - 5)
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(t - 2) / (t + 5)
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(t - 3) / (t + 5)
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(t + 3) / (t + 5)
Correct Answer
A. (t + 3) / (t - 5)Explanation
The given expression can be simplified by factoring the numerator and the denominator. The numerator can be factored as (t + 3)(t - 2), and the denominator can be factored as (t - 5)(t - 2). By canceling out the common factor of (t - 2), we are left with (t + 3)/(t - 5).Rate this question:
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Jun 09, 2023Quiz Edited by
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Nov 21, 2008Quiz Created by
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