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Subsets 2016-06-26
Kats pose la question :
How Many sub sets are in set k={6,7,3}
Penny Nom lui répond.
find f+g 2016-06-26
yzabelle pose la question :
find f+g
f(x)=x^2-1
g(x)=square root of x+2

Penny Nom lui répond.
An equation involving pi 2016-06-26
Diaz pose la question :
How would you solve :

( pie*X)/ 4 = -pie/2

I have no idea.what to do!

Penny Nom lui répond.
Simultaneous equations 2016-06-25
sena pose la question :
2x/3+3y/2=-1
4x-5y=22

simultaneous equation

Penny Nom lui répond.
Sin squared (x) + Sin (x) - 2 2016-06-25
Sree pose la question :
Reduce the below to a single term

Sin squared (x) + Sin (x) - 2

Thanks

Penny Nom lui répond.
An open ball is an open set? 2016-06-23
Aqeel pose la question :
Theorem: The open ball is an open set?
Harley Weston lui répond.
Cubic feet of soil 2016-06-19
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.
Profit 2016-06-15
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.
Quadrilateral 2016-06-14
Muhib pose la question :
Is there a quadrilateral with 0 sets of parallel sides.
Penny Nom lui répond.
A ratio of boys to girls 2016-06-12
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.
The difference between the ares of two rectangles 2016-06-09
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.
Implicit differentiation 2016-06-06
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.
The lateral side length of a cone 2016-06-05
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.
20 things taken 8 at a time 2016-05-30
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.
John and Max walk to meet each other 2016-05-29
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.
 
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