The angles of a triangle are x, y and 40°. The difference between the two angles x and y is 30°. Find x and y.
If x+1 is a factor of 2×3 + ax2 + 2bx + 1, then find the values of a and b given that 2a–3b = 4.
Write an equation of a line passing through the point representing solution of the pair of linear equations
x + y = 2 and 2x – y = 1. How many such lines can we find?
Draw the graph of the pair of equations 2x + y = 4 and 2x – y = 4. Write the vertices of the triangle formed by these lines and the y-axis. Also find the area of this triangle.
If 2x + y = 23 and 4x – y = 19, find the values of 5y – 2x and y/x -2
Write a pair of linear equations which has the unique solution x = – 1, y =3. How many such pairs can you write?
Two straight paths are represented by the equations x – 3y = 2 and –2x + 6y = 5. Check whether the paths cross each other or not.
Two straight paths are represented by the equations x – 3y = 2 and –2x + 6y = 5. Check whether the paths cross each other or not.