20
16
2
8
Correct answer is D
5x + 3y=4
5x-3y= 2
Using elimination method
5x + 3y=4 → 5x + 3y=4
-[5x-3y= 2] → -5x +3y= -2
6y = 2
y → 1/3 and x = 3/5
solving (25x\(^2\) -9y\(^2\))
25 * [3/5]\(^2\) -9 * [1/3]\(^2\)
25 * \(\frac{9}{25}\) - 9 \(\frac{1}{9}\)
9 - 1 = 8
If \((\frac{2}{3})^{m} (\frac{3}{4})^{n} = \frac{256}{729}\), find the values of m and n....
Given \(\sin 58° = \cos p°\), find p....
In the diagram O is the center of the circle, if ∠QRS = 62o, find the value of ∠SQR. ...
Evaluate \(\frac{(0.14^2 \times 0.275)}{7(0.02)}\) to 3 decimal places. ...
A straight line makes an angle of 30° with the positive x-axis and cuts the y-axis at y = 5. Fin...
Factorize a2x - b2y - b2x + a2y ...
Age in years 7 8 9 10 11 No of pupils 4 13 30 44 9 The table above shows...