5 items are filed under this topic.








4 digit strings using the digits 1, 2, 3 and 4 
20150614 

From Gary: What is the number of possible combinations using the following fact pattern?
A. Each combination must have 4 numbers.
B. The possible numbers to choose from are 1, 2, 3, 4
C. The numbers can be included in the combination more than once. For example, it can be 1111.
Is it possible to generate a schedule of the possibilities? Answered by Penny Nom. 





Number pattern 8, 27, 64, ... 
20070912 

From Valerie: what is the number pattern 8,27,64, Answered by Stephen La Rocque. 





A number pattern 
20061002 

From Tim:
The patterns that went in 2s, 4s and 5s we got, but we are stuck on the pattern that doubles. We can't come up with the rule or equation that solves it.
With the first number being the term number and the second being the term, this is the pattern:
11
22
34
48
516
632
764
100128
What is the rule for this?
Answered by Stephen La Rocque and Penny Nom. 





Help the Helper 
19980920 

From John Derr: I am TRYING to help my niece with her Community College Teacher's math course! I have a BS and an Engineer yet stumble on what her book is asking:  Fill in the blanks to continue this sequence of equations:
1  =  0+1  1+3+1  =  1+4  1+3+5+3+1  =  4+9  _______________  =  ____  _______________  =  ____   What expression, suggested by part (1.), should be placed in the blank to complete this equation?
1 + 3 + 5.........+ (2n3) + (2n1)+ (2n3)+...+5 + 3+ 1  =  _________  Answered by Penny Nom. 





A Pattern 
19980914 

From Krystin: Question: 1=1x1 1+2+1=2x2 1+2+3+2+1=3x3 draw a series of diagrams to illustrate the above pattern Answered by Penny Nom. 


