Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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
Transcribed Image Text:**Transcription and Explanation for Educational Purposes**
**Text Transcription:**
11. Monday morning started out at -3 degrees in Minneapolis, Minnesota. By Monday afternoon, the temperature was 18 degrees above zero. What is the difference in temperatures on this day?
12. Shumina started with $65 in her bank account. After going on a spending spree, she realized her balance was now at $10. What is the difference in her bank account from where she started to where she ended?
13. Which has the greater absolute value and why?
|-99| or |55|
14. Write 2.3 x 10^-6 in regular notation.
15. Order the following from least to greatest: 5.5 x 10^3, 8.9 x 10^3, 5.4 x 10^7
---
**Detailed Explanation:**
- **Question 11:**
This question involves calculating the difference between two temperatures to determine how much the temperature rose from morning to afternoon. The starting temperature is -3 degrees, and the afternoon temperature is 18 degrees. To find the difference, subtract -3 from 18, resulting in a total temperature change of 21 degrees.
- **Question 12:**
This problem asks for the change in Shumina's bank account balance. She started with $65, and her final balance is $10. Subtracting the final amount from the initial amount gives a difference of $55, indicating Shumina spent $55.
- **Question 13:**
This question requires understanding of absolute values. The absolute value of a number is its distance from zero on the number line, regardless of direction. Here, |-99| has an absolute value of 99, while |55| has an absolute value of 55. Thus, |-99| has the greater absolute value.
- **Question 14:**
In scientific notation, 2.3 x 10^-6 is converted to regular notation by moving the decimal point six places to the left. Therefore, the answer is 0.0000023.
- **Question 15:**
This task involves ordering numbers in scientific notation. Convert these to regular numbers for easy comparison:
- 5.5 x 10^3 = 5500
- 8.9 x 10^3 = 8900
- 5.4 x

Transcribed Image Text:**Weekly Review #1 (10/16-10/26)**
**Instructions:**
Read each question carefully. Show your work for each problem. Use your math notebooks to help you!
**Due: Monday, October 26th**
---
**1. What is the decimal equivalent to 10⁻³?**
- A. 0.0001
- B. 0.001 (correct answer)
- C. 0.0003
- D. 0.003
**2. Which statement is true?**
- A. √20 = 400
- B. √121 = 11 (correct answer)
- C. √36 = 4
- D. √16 = 256
**3. List the numbers in order from least to greatest:**
\(\frac{2}{3}\), 0.63%, 0.6
---
**4. Solve: \( -\left| \frac{2}{3} \right| = \)**
(No answer provided)
**5. Which point on the number line represents |-4|?**
Diagram Explanation:
- Number line ranging from -5 to 5 with points labeled A (-5), B (-4), C (-3), 0, 1, 2, 3, 4, and 5.
- Correct point: C (3)
**6. What is √324?**
- Answer: 18
**7. Identify each value that is equivalent to 10⁻⁴:**
- A. \(\frac{1}{10^4}\)
- B. \(\frac{1}{10^{-4}}\)
- C. \(\frac{1}{1000}\)
- D. \(\frac{1}{10000}\)
- E. 0.00001
- F. 0.0001 (correct answer)
**8. 144 is the square of what number?**
- Answer: 12
**9. Write the following in order from greatest to least:**
\(\frac{5}{9}\), 0.54, 5.4%
(No answer provided)
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