Question 1
Find the centre and radius of the circle having the equation x
2 + y
2 - 12x + 20y + 15 = 0.
◦ centre (6, 10) and radius
◦ centre (-6, 10) and radius 15
◦ centre (6, -10) and radius 121
◦ centre (6, -10) and radius 11
◦ centre (12, -20) and radius 15
Question 2
Describe the region defined by the pair of inequalities x
2 + y
2 ≤ 9 and x
2 + (y + 3)
2 ≤ 6.
◦ all points that are inside or on both the circle of radius 3 centred at the origin and the circle of radius
centred at (3, 0)
◦ all points that are inside or on both the circle of radius 3 centred at the origin and the circle of radius
centred at (-3, 0)
◦ all points that are inside or on both the circle of radius 3 centred at the origin and the circle of radius
centred at (0, -3)
◦ all points that are inside or on both the circle of radius 9 centred at the origin and the circle of radius 6 centred at (0, -3)
◦ all points that are inside or on both the circle of radius 3 centred at the origin and the circle of radius
centred at (0, 3)
Acromegaly in one individual from a pair of identical twins.
The inguinal area. Take great care when applying deep pressure in this region
RNA base sequence of the trp leader region
Describe the functions of fat in the body
(a) In nondisjunction in meiosis I, one pair of chromosomes fails to separate properly at anaphase I