Name: ___________________________ Date: _________________________

MCR3U: Choice Assignment #4

	Please answer three out of the following four questions.  This assignment is due on Monday, March 19th, 2007 (after the March Break).  Good luck and have fun!

1) Write a formula for each sequence (it can be arithmetic, geometric, or recursive)
a) 		b) 	c) 

2) A herd of caribou, known as the Qamanirjuag, ranges in the Northwest Territories West of Hudson Bay.  After decades of decline, a census in 1980 indicated a population of 39 000.  During the next 5 years, the population increased dramatically, growing to 200 000 animals in 1985.  In 1994, there were 500 000 animals.  Copy the table.  Calculate to complete the table, showing the populations to the nearest thousand.  Assume the growth is exponential.

Qamanirjuag Caribou Herd

3) Insert three numbers between 4 and 2500, so the five numbers form:
	a) a geometric sequence
	b) an arithmetic sequence

4) Find the sum of the following series:
a) 1 + 3 + 5 + 7 + … + 99			b) 10 + 7.5 + 5 + 2.5 + … - 300