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)
The logistic growth model does not describe all populations.
The adrenal glands. These glands sit on top of each kidney. Each adrenal is subdivided into an outer
SPE densitometry showing an M spike in the gamma region.
Describe the Conceptual Forecasting Framework in your own words.