







Is there a practical use for radian measure? 
20071026 

Paula pose la question : Is there a practical use for radian measure in any profession? Which professions might us radian as opposed to degree measure? Harley Weston lui répond. 





How many complete cycles does the piston make in 30minutes? 
20070811 

San pose la question : A piston in a large factory engine moves up and down in a cylinder.
The height, h centimetres, of the piston at t seconds is given by formula
h=120sin(pi)t+200
How many complete cycles does the piston make in 30minutes? Penny Nom lui répond. 





Bicycles and tricycles 
20010926 

Sally pose la question : A bicycle shop has 5 bicycles and tricycles to repair. They have 12 wheels. What strategy would you use to determine how many bicycles and tricycles need to be repaired? Claude Tardif, Diane Hanson and Penny Nom lui répond. 





Bicycles and phone calls 
20010208 

Sarah pose la question :
 A bicycle has a diameter of 66 centimeters. How many times must the tire rotate to travel 1 kilometer?explain answer.
 Becky want to make a long distance call to her friend Sarah from a pay telephone.She has $5.00 in change.The call costs $0.90 for the first three minutes and $0.24 for each additional minute.How long can Becky talk to Sarah?
Leeanne Boehm lui répond. 

