Question 1 1.1
In the diagram two circles intersect in A and C. BA is a tangent to the larger circle at
point A Straight lines ATD and BCD intersect the circles in T and D, and C and D
respectively. The larger circle passes through centre of the smaller circle.
O
B.
Let B = 1
D
1.1.1 Prove that D = 180° - 2x
1.1.2 Prove that AD BD.
1.1.3Prove that TCIL AB.
(5)

Suppose babies born after a gestation period of 32 to 35 weeks have a mean weight of 25002500 grams and a standard deviation of 800800 grams while babies born after a gestation period of 40 weeks have a mean weight of 27002700 grams and a standard deviation of 385385 grams. if a 3232-week gestation period baby weighs 21252125 grams and a 4040-week gestation period baby weighs 23252325 grams, find the corresponding z-scores. which baby weighs lessless relative to the gestation period?