5th Homeowrk Due 2nd Feb, 20 Marks

1. Expand and simplify: $(x+3)(x-2)(x-5)$

   [3]

2. Factorise the denoimnators and simplify: \[ \frac{5}{6x+9} - \frac{4}{2x^2-11x-21} \]

   [5]

3. A car travels at 70mph for 3 hours and 41 minutes, how many miles has it travelled?

   [2]

4. If a=5cm, b=4cm and c=3cm, find
   
   1. the length d
   2. The surface area of the cuboid

   [5]

5. In the previous question, find the angle between AG and the face ABCD.

   [5]