• A. 3x+7y-13=0
• B. 7x+3y-13=0
• C. 7x+3y+13=0
• D. 7x+3y-15=0

Answer: Option B

Explanation:

• A. $\frac{5}{42}$
• B. $\frac{1}{3}$
• C. $\frac{1}{21}$
• D. $\frac{1}{7}$

Answer: Option A

Explanation:

• A. $48f{t}^2$
• B. $24f{t}^2$
• C. $28f{t}^2$
• D. $38f{t}^2$

Answer: Option A

Explanation:

• A. $48f{t}^2$
• B. $24f{t}^2$
• C. $28f{t}^2$
• D. $38f{t}^2$

Answer: Option A

Explanation:

• A. $\left[\begin{array}{cc}3& 2\\ -4& 5\end{array}\right]$
• B. $\left[\begin{array}{cc}3& -4\\ -2& 5\end{array}\right]$
• C. $\left[\begin{array}{cc}4& -5\\ 3& 2\end{array}\right]$
• D. $\left[\begin{array}{cc}3& 4\\ 2& 5\end{array}\right]$

Answer: Option B

Explanation: