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Subsets |
2016-06-26 |
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From Kats:
How Many sub sets are in set k={6,7,3}
Answered by Penny Nom. |
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find f+g |
2016-06-26 |
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From yzabelle:
find f+g
f(x)=x^2-1
g(x)=square root of x+2
Answered by Penny Nom. |
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An equation involving pi |
2016-06-26 |
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From Diaz:
How would you solve :
( pie*X)/ 4 = -pie/2
I have no idea.what to do!
Answered by Penny Nom. |
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Simultaneous equations |
2016-06-25 |
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From sena:
2x/3+3y/2=-1
4x-5y=22
simultaneous equation
Answered by Penny Nom. |
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Sin squared (x) + Sin (x) - 2 |
2016-06-25 |
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From Sree:
Reduce the below to a single term
Sin squared (x) + Sin (x) - 2
Thanks
Answered by Penny Nom. |
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An open ball is an open set? |
2016-06-23 |
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From Aqeel:
Theorem: The open ball is an open set?
Answered by Harley Weston. |
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Cubic feet of soil |
2016-06-19 |
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From H:
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
Answered by Penny Nom. |
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Profit |
2016-06-15 |
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From Toyia:
12.87 profit from 21.99 sale. What is the percentage that was taken off the 21.99
Answered by Penny Nom. |
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Quadrilateral |
2016-06-14 |
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From Muhib:
Is there a quadrilateral with 0 sets of parallel sides.
Answered by Penny Nom. |
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A ratio of boys to girls |
2016-06-12 |
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From Jasper:
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
Answered by Penny Nom. |
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The difference between the ares of two rectangles |
2016-06-09 |
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From Ingrid:
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
Answered by Chris Fisher and Harley Weston. |
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Implicit differentiation |
2016-06-06 |
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From Pranay:
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.
Answered by Penny Nom. |
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The lateral side length of a cone |
2016-06-05 |
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From Diane:
Question is find the lateral side length of a right cone with area of 372 sq. cm and base circle radius of 9 cm.
Answered by Penny Nom. |
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20 things taken 8 at a time |
2016-05-30 |
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From Jessie:
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
Answered by Penny Nom. |
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John and Max walk to meet each other |
2016-05-29 |
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From abhay:
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?
Answered by Penny Nom. |
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