It is given that 4x + 3y = 26 ......................... (i)… – Class 12 Mathematics 2081 Solved

It is given that $4x + 3y = 26 \dots (i)$ and

$3x - 2y = 11 \dots (ii)$

A student eliminates $y$ from the above equations. Which of the following operations does the student apply?

A)$ 4 \times \text{eq}^n(ii) + 3 \times \text{eq}^n(i) $

B) $ 4 \times \text{eq}^n(ii) - 3 \times \text{eq}^n(i) $

C) $ 2 \times \text{eq}^n(i) + 3 \times \text{eq}^n(ii) $

D) $ 2 \times \text{eq}^n(i) - 3 \times \text{eq}^n(ii) $

What is the greatest height attained by a projectile, whose initial velocity and angle of elevation are $ 160 \text{ ms}^{-1} $ and$ 30^\circ $ respectively? ($ g = 10 \text{ms}^{-2} $)

A) $203\text{m}$ B) $230\text{m}$ C) $320\text{m}$ D) $640\text{m}$

It is given that 4x + 3y = 26 ......................... (i) and 3x - 2y = 11 .......................... (ii) A student eliminates $y$ from the above…

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