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Questions in Grade College

[Answered] Given the square matrix [tex]A=\left(\begin{array}{ccc}1 & 2 & -3 \\ 2 & -1 & -1 \\ 3 & 2 & 1\end{array}\right)[/tex], find [tex]A^{-1}[/tex], the inverse of matrix [tex]A[/tex], and use your result to solve the following system of linear equations: [tex]\begin{array}{l} x+2 y-3 z=3 \\ 2 x-y-z=11 \\ 3 x+2 y+z=-5 \end{array}[/tex] Define the following with an example each: (i) Null matrix (ii) Square matrix (iii) Symmetric Matrix

[Answered] What is "Formal EE" primarily associated with? A. Education in the home and community contexts B. Curriculum-driven education in schools and tertiary institutions C. Education provided by government departments D. Cultural events and practices

[Answered] Which of the following are considered stakeholders? A. Customers B. Suppliers C. Investors D. All of the above

[Answered] An electric device delivers a current of [tex]$15.0 A$[/tex] for 30 seconds. How many electrons flow through it?

[Answered] When $1,250^{\frac{3}{4}}$ is written in its simplest radical form, which value remains under the radical? A. 2 B. 5 C. 6 D. 8

[Answered] 4. A community should have a disaster prevention and response plan. List FIVE components of such a plan. 5. A social worker should assist the community in disaster preparedness. Mention FIVE benefits of such preparedness. 6. Several stakeholders are involved in disaster and crisis management. Identify FOUR types of these stakeholders. 7. State THREE reasons why a disaster prevention and response plan must have a budget. 8. State FOUR reasons why auditing of the community disaster prevention and response mechanisms is needed. 9. Identify THREE mitigation measures in disaster management that a social worker can assist a community to implement. 10. Outline FOUR benefits of monitoring community crisis and disaster programs. 11. Kalimani, a flood-prone rural area, experienced heavy rainfall in April 2024. Youth volunteers noticed early signs—rising river levels, dark clouds, strong winds, and soaked ground. They reported these signs using early warning forms. The Disaster Management Committee verified the report, alerted authorities, and used radios and loudspeakers to warn the community. Residents evacuated to higher ground. Though property was damaged, no lives were lost due to timely warning and response. i) State FOUR early warning signs that were observed in Kalimani before the flood occurred. ii) Highlight FOUR actions that were taken by the Disaster Management Committee after the signs were reported. iii) Explain TWO ways on how early warning contributes to minimizing the impact of the disaster in this case.

[Answered] What occurs during the latent period of a muscle twitch? A. Action potentials are taking place, leading to internal mechanical changes. B. Muscle fibers relax completely. C. The muscle contracts immediately with maximum strength. D. Calcium ions return to the sarcoplasmic reticulum.

[Answered] Which of the following is an appropriate place to make drawing materials available in the early childhood environment? A. The art center B. The block center C. The dramatic play center D. The music center E. All of the above F. A and B only

[Answered] Find the volume of the solid of revolution formed by rotating the region bounded by [tex]y=x^3[/tex] and [tex]y=x[/tex] about the line [tex]x=-2[/tex]. Use the shell method. V = [?] Round your answer to the nearest thousandth.

[Answered] How does water change the shape of Earth's surface?