1. If A varies directly as r² and A = k r². K is the _____
3. Solve the equation 3/10 = 9/2d
4. Make y the subject of 2x + y = 8
5. What is the value of + 6y - ( + 14y) ?
6. Given that V = K r²h , this is an example of _____ variation.
7. If 3k - y = 1, find the value of y when k is - 4
8. Evaluate 1101two - 111two
9. If A is a point on a graph, the coordinate being A( - 2, 3). This can be interpreted as
10. Which of these is NOT true?
3. Solve simultaneously 4m + 3n = 9 .........( 1) and 2m + 3n = 3 .......(2)