1. 17.63 cm
2. (i) Period = 8 hours
(ii) Times are 4 am, 12 noon, 8 pm
(iii) Minimum quantity is 1 unit
(iv) At 3.15 am
3. 1. Proof
2. Proof
4. a. A = 3 and B = 5
b. 3 hours 48 minutes
5. a. (i) x = 664.9 (1 d.p.)
(ii) Proof
b. Proof
c.
1. 17.63 cm
2. (i) Period = 8 hours
(ii) Times are 4 am, 12 noon, 8 pm
(iii) Minimum quantity is 1 unit
(iv) At 3.15 am
3. 1. Proof
2. Proof
4. a. A = 3 and B = 5
b. 3 hours 48 minutes
5. a. (i) x = 664.9 (1 d.p.)
(ii) Proof
b. Proof
c.