Q6. Why do we investigate accidents? Pick all that apply (a) To avoid repeating (b) To find root cause (c) To place blame on someone (d) All of the above Q7. What is the purpose of a Job Safety Analysis (JSA)? (a) To identify potential hazards on construction sites (b) Monitor employee performance (c) Analyze project profitability (d) Conducting equipment and machinery inspection Q8. Which of the following is an example of a fall protection system in construction? (a) Safety glasses (b) Hard hats (c) Guardrails (d) Ear muffs

a) Is the following set of vectors in \( \mathbb{R}^{4} \) linearly dependent, if yes, write the first vector as a linear combination of the other vectors. \( S=\{(1,2,-3,1),(3,7,1,-2),(1,3,7,-4)\} \).

En \( R^{2} \) suponga que \( (x)_{B_{1}}=\binom{2}{-1} \), donde \( B_{1}-\left\{\binom{1}{1},\binom{2}{3}\right\} \). Al escribir \( x \) en términos de là base \( B_{2}=\left\{\binom{0}{3},\binom{5}{-1}\right\} \) queda \( (x)_{B_{1}}=\binom{-\frac{1}{3}}{\beta} \) ¿Cuánto vale \( \beta \) ?

A Nash equilibrium occurs when your best outcome is achieved. the best outcome for society is achieved. and parties are made worse off.

En \( \mathrm{R}^{2} \) suponga que \( (x)_{B_{1}}=\binom{2}{-1} \), donde \( B_{1}=\left\{\binom{1}{1},\binom{2}{3}\right\} \) Al escribir \( x \) en términos de la base \( B_{2}=\left\{\binom{0}{3},\binom{5}{-1}\right\} \) queda \( (x)_{B_{3}}=\binom{-\frac{1}{3}}{\beta} \) ¿Cuánto vale \( \beta \) ?

When the internet was still slow and used mainly for browsing web pages, people frequently rented DVDs at local video stores. Netflix launched as a subscription service through which subscribers rented and returned DVDs through the mail. As internet speeds improved, the ability to purchase and download movies online emerged, and Netflix transformed from a mail DVD service to a streaning platform. By pivoting into streaming, Netflix successfully: limited the threat posed by potential substitutes in an emerging market. vertically integrated the production of DVDs. created a relationship-specific investment with internet service providers. eliminated the need to monitor for competitors entering through new distribution channels.