Activity Immediate Predecessoris) Activity Time (days) 2. A B. 4. C. 2. E 8. C 3. D.E H. F. G, H,I

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### Project Data for Sewer Installation at Northland Pines High School

#### Task Information:

| **Activity** | **Activity Time (days)** | **Immediate Predecessor(s)** |
|--------------|--------------------------|------------------------------|
| A            | 2                        | -                            |
| B            | 4                        | A                            |
| C            | 5                        | A                            |
| D            | 2                        | B                            |
| E            | 1                        | B, C                         |
| F            | 3                        | D, E                         |
| G            | 8                        | C                            |
| H            | 5                        | F                            |
| I            | 4                        | F                            |
| J            | 7                        | G, H, I                      |

#### Instructions:

a. Choose the correct network diagram based on the provided project data.

- **Option A:** (Diagram A)
- **Option B:** (Diagram B)

Note: The diagrams that should correspond to options A and B are not visible in the provided image.

#### Diagram Explanation (Hypothetical):

For instance, if Diagram A is chosen, it should accurately represent the flow and dependencies of activities A through J with arrows showing precedences. Each node represents an activity and is labeled accordingly, and the directed arrows indicate dependencies as outlined in the table. Diagram lines should clearly show these relationships:

- **A** starts immediately.
- **B and C** can only be started once **A** is completed.
- **D** depends on the completion of **B**.
- **E** requires **B and C** to be finished.
- **F** starts only after both **D and E** are completed.
- **G** can start after **C** is completed.
- **H** follows the completion of **F**.
- **I** follows the completion of **F**.
- **J** can be started after **G, H, and I** are all completed.

Understanding the correct network diagram is crucial for visualizing the timeline and interdependencies of tasks in project management.
Transcribed Image Text:### Project Data for Sewer Installation at Northland Pines High School #### Task Information: | **Activity** | **Activity Time (days)** | **Immediate Predecessor(s)** | |--------------|--------------------------|------------------------------| | A | 2 | - | | B | 4 | A | | C | 5 | A | | D | 2 | B | | E | 1 | B, C | | F | 3 | D, E | | G | 8 | C | | H | 5 | F | | I | 4 | F | | J | 7 | G, H, I | #### Instructions: a. Choose the correct network diagram based on the provided project data. - **Option A:** (Diagram A) - **Option B:** (Diagram B) Note: The diagrams that should correspond to options A and B are not visible in the provided image. #### Diagram Explanation (Hypothetical): For instance, if Diagram A is chosen, it should accurately represent the flow and dependencies of activities A through J with arrows showing precedences. Each node represents an activity and is labeled accordingly, and the directed arrows indicate dependencies as outlined in the table. Diagram lines should clearly show these relationships: - **A** starts immediately. - **B and C** can only be started once **A** is completed. - **D** depends on the completion of **B**. - **E** requires **B and C** to be finished. - **F** starts only after both **D and E** are completed. - **G** can start after **C** is completed. - **H** follows the completion of **F**. - **I** follows the completion of **F**. - **J** can be started after **G, H, and I** are all completed. Understanding the correct network diagram is crucial for visualizing the timeline and interdependencies of tasks in project management.
Below is the transcription of the image, adapted for an educational website:

---

### Organic Chemistry - Resonance Structures

#### Problem 1: Which of the following compounds has a sulfur (S) atom connected to two oxygen (O) atoms by single bonds and one oxygen atom by a double bond? Choose the correct resonance structure:

1. **Option A:**
   - Description: The diagram shows two sulfurs (S) in the center, with oxygens (O) bonded around them. However, the arrangement does not match the criteria of having two single bonds and one double bond with oxygen atoms.

2. **Option B:**
   - Description: In this diagram, the sulfur (S) atom forms two single bonds and one double bond with three different oxygen (O) atoms. The structure satisfies the conditions provided.

3. **Option C:**
   - Description: The sulfur (S) atom forms bonds with three oxygen (O) atoms, but the arrangement does not meet the required structure of two single bonds and one double bond.

4. **Option D:**
   - Description: The arrangement shows sulfur (S) bonded to oxygen (O) atoms, but similar to Option A and C, it does not fit the described criteria.

#### Visual Diagram Explanation:
Four visual diagrams (Options A, B, C, and D) are provided with compound structures to be analyzed for correct resonance arrangement. Each option contains molecular structures with nodes representing atoms and lines depicting bonds between them.

- **Options A, C, and D:** These structures do not meet the criteria of a sulfur atom connected by two single bonds and one double bond to oxygen atoms.
- **Option B:** This structure correctly illustrates sulfur connected to two oxygen atoms by single bonds and one oxygen by a double bond, making it the correct resonance structure.

**Note:** Click on the magnifying glass icons next to each structure for an enlarged view.

---

This adapted transcription maintains the visual clarity and educational intent, assisting learners in exploring the correct resonance structures in organic chemistry.
Transcribed Image Text:Below is the transcription of the image, adapted for an educational website: --- ### Organic Chemistry - Resonance Structures #### Problem 1: Which of the following compounds has a sulfur (S) atom connected to two oxygen (O) atoms by single bonds and one oxygen atom by a double bond? Choose the correct resonance structure: 1. **Option A:** - Description: The diagram shows two sulfurs (S) in the center, with oxygens (O) bonded around them. However, the arrangement does not match the criteria of having two single bonds and one double bond with oxygen atoms. 2. **Option B:** - Description: In this diagram, the sulfur (S) atom forms two single bonds and one double bond with three different oxygen (O) atoms. The structure satisfies the conditions provided. 3. **Option C:** - Description: The sulfur (S) atom forms bonds with three oxygen (O) atoms, but the arrangement does not meet the required structure of two single bonds and one double bond. 4. **Option D:** - Description: The arrangement shows sulfur (S) bonded to oxygen (O) atoms, but similar to Option A and C, it does not fit the described criteria. #### Visual Diagram Explanation: Four visual diagrams (Options A, B, C, and D) are provided with compound structures to be analyzed for correct resonance arrangement. Each option contains molecular structures with nodes representing atoms and lines depicting bonds between them. - **Options A, C, and D:** These structures do not meet the criteria of a sulfur atom connected by two single bonds and one double bond to oxygen atoms. - **Option B:** This structure correctly illustrates sulfur connected to two oxygen atoms by single bonds and one oxygen by a double bond, making it the correct resonance structure. **Note:** Click on the magnifying glass icons next to each structure for an enlarged view. --- This adapted transcription maintains the visual clarity and educational intent, assisting learners in exploring the correct resonance structures in organic chemistry.
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