![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Is 22/7 is an irrational number? |
2015-06-07 |
![](/images/transparent.gif) |
Sayak pose la question : Is 22/7 is an irrational number Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
The surface area of a round bar |
2015-06-06 |
![](/images/transparent.gif) |
chirag pose la question : Please tell me the formula for finding round bar surface in square inches/ mm Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Manipulating an equation |
2015-06-05 |
![](/images/transparent.gif) |
Leigh pose la question : Hi, I'm having trouble trying to find out how the equation y=mx+b for b comes up with the answer b=y-mx. Could you please assist me with this Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
A two digit number |
2015-06-05 |
![](/images/transparent.gif) |
Madison pose la question : Trini took some photos. The number of photos she took is a two digit number.
The sum of the digits is 11. The tens digit is 3 more than the ones digit.
How many photos did Trini take? Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
The surface area of a triangular prism |
2015-06-03 |
![](/images/transparent.gif) |
Alex pose la question : Find the surface area of a triangular prism with Isoceles triangles and dimensions 4 feet by 6 feet Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
The volume of a pipe |
2015-06-02 |
![](/images/transparent.gif) |
gordon pose la question : What is the formula to find out how many gallon of water in a length of pipe tried your answer on 8inch at 50feet did not work out Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
A tangent to y = x^3 |
2015-05-31 |
![](/images/transparent.gif) |
Brayden pose la question : Show that a tangent line drawn to the curve y=x^3 at the point (d,f (d)), where d>0, forms a right triangle with the x and y axes in quadrant 4 whose area is (2/3)d^4. Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
A pentagon inscribed in a circle |
2015-05-30 |
![](/images/transparent.gif) |
Victoria pose la question : find the area of a regular pentagon inscribed in a circle with radius 3 units Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
A stone walkway around a pool |
2015-05-29 |
![](/images/transparent.gif) |
Jerri pose la question : I have a rectangular pool 15x30 and it will require stone placed around it 4 feet out and 4 inches deep how much will I need? Thanks, jerri Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
The perimeter of a rectangle |
2015-05-28 |
![](/images/transparent.gif) |
Imran pose la question : The length of a rectangle is x+3 centimetres.
The width of the rectangle is x-1 centimetres.
Find an expression in terms of x for the perimeter of the rectangle.
The perimeter of a rectangle The perimeter of a rectangle
Give your expressions in it's simplest form.
The perimeter of a rectangle The perimeter of a rectangle
Thank You. Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Two concentric circles |
2015-05-28 |
![](/images/transparent.gif) |
Shannan pose la question : Two concentric circles have radii of 24cm and 26cm. What is the length of the chord that is tangent to the inner circle? Include a sketch Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
Prove that you cannot factor x squared + 5 |
2015-05-28 |
![](/images/transparent.gif) |
lily pose la question : the question is: prove that you cannot factor x squared + 5 Robert Dawson lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
y=f(x) and y=-3/2f(x) |
2015-05-27 |
![](/images/transparent.gif) |
Kevin pose la question : Could you please show me what change y=f(x) to y=-3/2f(x) has gone through and please graph.
y=f(x) points: (-3,0) ,(0,-2), (2,-2), (3,4)
how does (0,-2) change? Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
A path 30 feet wide by 2 miles long |
2015-05-24 |
![](/images/transparent.gif) |
Doug pose la question : If I make a path 30 feet wide by 2 miles long how many acres am I covering? Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
![](/images/transparent.gif) |
The perimeter of a quarter circle |
2015-05-21 |
![](/images/transparent.gif) |
Bethany pose la question : The perimeter of a quarter circle is 3.57. What is the quarter circle's radius? Penny Nom lui répond. |
![](/images/transparent.gif) |
![](/images/transparent.gif) |