Chapter 6 Quiz: Rational Expressions & Equations

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Questions: 8 | Attempts: 302 | Updated: Mar 21, 2023

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Chapter 6 Quiz: Rational Expressions & Equations - Quiz

Questions and Answers

1.

Factor using slide and divide:
- A.
  
  (2x - 1)(x + 7)
- B.
  
  (2x + 1)(x - 7)
- C.
  
  (x + 14)(x - 1)
- D.
  
  2(x - 7)(x + 1)
Correct Answer
A. (2x - 1)(x + 7)

Explanation
The given answer is correct because when we multiply (2x - 1) and (x + 7) using the distributive property, we get 2x^2 + 14x - x - 7, which simplifies to 2x^2 + 13x - 7. This matches the expression given in the question, so (2x - 1)(x + 7) is the correct factorization.

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2.

Simplify/Reduce: Answer Choices: A. B. C. D.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
C. C
3.

Simplify/Reduce: . Answer Choices: A. B. C. D.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
D. D
4.

Multiply Answer Choices: A. B. C. D.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
C. C
5.

Divide Answer Choices: A. B. C. D.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
A. A
6.

Add: Answer Choices: A. B. C. D.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
C. C
7.

Subtract: Answer Choices: A. B. C. D.
- A.
  
  A
- B.
  
  B
- C.
  
  C
- D.
  
  D
Correct Answer
B. B
8.

Exchange Rates Robyn spent two months traveling in New Zealand. The day she arrived the exchange rate was 1.3 New Zealand dollars per every 1 U.S. dollar. If she exchanged $500 U.S. dollars when she arrived, how much in New Zealand dollars did she receive?
- A.
  
  $384.62
- B.
  
  $650
- C.
  
  $325
- D.
  
  $822.15
Correct Answer
B. $650

Explanation
Robyn exchanged $500 U.S. dollars when she arrived in New Zealand. The exchange rate was 1.3 New Zealand dollars per every 1 U.S. dollar. To find out how much in New Zealand dollars she received, we need to multiply the amount of U.S. dollars by the exchange rate. Therefore, $500 multiplied by 1.3 equals $650. So, Robyn received $650 in New Zealand dollars.

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