Your results on Mathematics 2010 are shown below 1. Simplify 0.000215 x 0.000028 and express your answer in standar form 6.03×10⁹ 6x02x10⁹ 6.03×10¯⁹ 6.02×10¯⁹ 2. Factorise: x+y-ax-ay (x-y)(1-a) (x+y)(1+a) (x+y)(1-a) (x-y)(1+a) 3. In the diagram <PSR=22°,<SPQ=58° and <PQR=41°. Calculate the obtuse angle QRS 99° 100° 121° 165° 4. The bar chart shows the marks distribution in an English test....