







Cardano's method 
19960311 

From Mike Gorski: What is Cardano's method for finding the roots of a cubic equation? Answered by Harley Weston. 





Grade nine problem solving 
19960311 

From Azmat Hussain: Can math problems be actually fun and engaging? Answered by Diane Hanson. 





A trig identity 
19960311 

From Azmat Hussain: Is there an easier/another way to prove the trig identity cos(a+b) = cos(a)cos(b)sin(a)sin(b)? Answered by Penny Nom. 





Pronunciation 
19960305 

From Todd Stienhauser: Is 123.4 pronounced "one hundred and twenty three and four tenths"or "one hundred twenty three and four tenths"? Answered by Penny Nom. 





Exponents 
19960225 

From Eric Cote: I want to know why the grade six math books tell you that the little number at the top right of another number (exponent) is called the power, but the grade seven and up books tell you it's called the exponent? Answered by Harley Weston. 





Algorithms for roots 
19960222 

From Charles Hewitt: I have seen an algorithm for finding the square root of numbers. Are there similar such algorithms for higher roots? Answered by Harley Weston. 





Prime numbers 
19960222 

From Charles Hewitt: I would apprecaite it if you could share with me any algorithm to determine whether a number is prime. Answered by Penny Nom. 





Queue length 
19960222 

From Frank Fronhofer II: How long is the toll booth queue? Answered by Harley Weston. 





e^(i*pi) = 1 
19960219 

From Matt Schneider: Why is e^(i*pi) = 1? Answered by Harley Weston. 





Pascal's Triangle 
19960219 

From Richard: Do you know of any resources that might help us make use of the numeric relationships in Pascal's triangle on a fairly simple basis? Answered by Denis Hanson. 





Neighbourhoods 
19960214 

From Robert: What are neighbourhoods? Answered by Harley Weston. 





Euclid's Pythagorean proof 
19960214 

From Sean: What is Euclid's proof of Pythagoras' theorem? Answered by Harley Weston. 





Stairs 
19960212 

From Marianne and Carrie: How many ways can you run up a flight of stairs? Answered by Denis Hanson. 





What is the variance of the difference of two binomials? 
19960208 

From Chris Johnson: My coworkers and I have come up with different estimates of the zstatistic, and are in particular disagreement over the calculation of Variance for this problem. I am trying to find out, with a five percent level of significance, whether the new form yields a higher rate of return than the old form. Any thoughts, comments, or solutions? Answered by Harley Weston. 





Converting to other bases 
19960206 

From Paul: Converting base 10 numbers to other bases Answered by Penny Nom. 

