![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Subsets |
2016-06-26 |
![](/images/transparent.gif) |
Kats pose la question : How Many sub sets are in set k={6,7,3} Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
find f+g |
2016-06-26 |
![](/images/transparent.gif) |
yzabelle pose la question : find f+g
f(x)=x^2-1
g(x)=square root of x+2 Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
An equation involving pi |
2016-06-26 |
![](/images/transparent.gif) |
Diaz pose la question : How would you solve :
( pie*X)/ 4 = -pie/2
I have no idea.what to do! Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Simultaneous equations |
2016-06-25 |
![](/images/transparent.gif) |
sena pose la question : 2x/3+3y/2=-1
4x-5y=22
simultaneous equation Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Sin squared (x) + Sin (x) - 2 |
2016-06-25 |
![](/images/transparent.gif) |
Sree pose la question : Reduce the below to a single term
Sin squared (x) + Sin (x) - 2
Thanks Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
An open ball is an open set? |
2016-06-23 |
![](/images/transparent.gif) |
Aqeel pose la question : Theorem: The open ball is an open set? Harley Weston lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Cubic feet of soil |
2016-06-19 |
![](/images/transparent.gif) |
H pose la question : A garden is 8 ft x 7 ft that needs to raised 6 inch's How many cubic feet of soil required ? What am I missing ?
Thanks
H Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Profit |
2016-06-15 |
![](/images/transparent.gif) |
Toyia pose la question : 12.87 profit from 21.99 sale. What is the percentage that was taken off the 21.99 Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Quadrilateral |
2016-06-14 |
![](/images/transparent.gif) |
Muhib pose la question : Is there a quadrilateral with 0 sets of parallel sides. Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
A ratio of boys to girls |
2016-06-12 |
![](/images/transparent.gif) |
Jasper pose la question : There are 600 pupils in a school. The ratio of the boys to girls in the school is 3:5 how many girls and how many boys are in the school Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
The difference between the ares of two rectangles |
2016-06-09 |
![](/images/transparent.gif) |
Ingrid pose la question : I am trying to help my son with an area question.
I have the answer, from the solutions, but I cannot figure out how to teach him.
Question:
Two rectangles have lengths 13cm and 19cm respectively.
Their total area is 376cm squared.
If both their widths are whole numbers, what is the difference in their areas?
I know that this is solvable once I determine the widths of the rectangles ,
but how do I go about finding that?
Thanks for your help Chris Fisher and Harley Weston lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Implicit differentiation |
2016-06-06 |
![](/images/transparent.gif) |
Pranay pose la question : Is a circle x^2+y^2=2 a function? If it is not a function,
why is it possible to do implicit differentiation on it?
Thanks. Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
The lateral side length of a cone |
2016-06-05 |
![](/images/transparent.gif) |
Diane pose la question : Question is find the lateral side length of a right cone with area of 372 sq. cm and base circle radius of 9 cm. Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
20 things taken 8 at a time |
2016-05-30 |
![](/images/transparent.gif) |
Jessie pose la question : I need all of the 8 digit combinations using the numbers 1-20.
i.e 1 2 3 4 5 6 7 8, 2 3 4 5 6 7 8 9 like wise
no number should be repeated in one combination.
Thanks
Jessie Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
John and Max walk to meet each other |
2016-05-29 |
![](/images/transparent.gif) |
abhay pose la question : The speeds of John and Max are 30 km/h and 40 km/h.Initially Max is at a place L and John is at a place M. The distance between L and M is 650 km. John started his journey 3 hours earlier than Max to meet each other. If they meet each other at a place P somewhere between L and M, then the distance between P and M is? Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |