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Hexagon inscribed in a circle |
2007-10-26 |
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VIVEK pose la question :
what are the properties of a regular hexagon inscribed in a circle.
If the radius of the circle is given then how to find the side of the regular hexagon
Stephen La Rocque lui répond. |
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Related rates |
2007-10-26 |
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David pose la question :
A trough is 12 feet long and 3 feet across the top.(look like an upsidedown triangle square). Its ends are isosceles triangles with altitudes of 3 feet.
a) If water is being pumped into the trough at 2 cubic feet per minute, how fast is the water level rising when h is 1 foot deep?
b) If the water is rising at a rate of 3/8 inch per minute when h=2, determine the rate at which water is being pumped into the trough.
thank you so much for helping me out
Stephen La Rocque lui répond. |
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(3)^1/2 * tan(t/3) = 1 |
2007-10-26 |
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Rosie pose la question :
Please help me with finding the solution to:
(3)^1/2 * tan(t/3) = 1.
Penny Nom lui répond. |
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The length of a rectangle is twice the width |
2007-10-26 |
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Tami pose la question :
The length of a rectangle is twice the width. The number of square units in it's arear is four times the number of units in it's perimeter. What are the dimensions of the rectangle?
Penny Nom lui répond. |
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Some four digit combinations |
2007-10-25 |
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Larisa pose la question :
Please tell me the answer or how to get the answer of every possible digit combination of 5173, for instance1735, 1753, 1573, 1537, 1357, 1375, etc.
Stephen La Rocque lui répond. |
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Magic triangles |
2007-10-25 |
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joshine pose la question :
i confuse about a magic triangle.but my teacher ask me to make
examples of it in 4 different magic triangle and also different pattern
can you help me about it?
Penny Nom lui répond. |
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The perimeter of a circle sector |
2007-10-25 |
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sara pose la question :
Hi!
The area of a sector of a circle is 25 sqcm. The radius of the sector is 6 cm. Calculate the perimeter of the sector.
Many thanks!!!
Penny Nom lui répond. |
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Two mirrors |
2007-10-24 |
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Peter pose la question :
The reflecting surfaces of two intersecting flat mirrors are at an angle θ (0° < θ < 90°). For a light ray that strikes the horizontal mirror, show that the emerging ray will intersect the incident ray at an angle β = 180° – 2θ.
Stephen La Rocque lui répond. |
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parabolic arch |
2007-10-24 |
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ABHILASH pose la question :
How find parabolic arch perimeter.
Harley Weston lui répond. |
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A graph with 100 vertices |
2007-10-24 |
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amarjeet pose la question :
let g be a graph with 100 vertices numbered 1 to 100. Two vertices i and j are adjacent only if i-j=8 or i-j=12. The number of connected components
in g are:
1. 8
2. 12
3. 4
4. 25
Penny Nom and Victoria West lui répond. |
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Given a six by six square, how rectangles are there in the square? |
2007-10-24 |
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Maria pose la question :
Given a six by six square, how rectangles are there in the square?
Stephen La Rocque lui répond. |
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A sixfold increase |
2007-10-24 |
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Fred pose la question :
If I have $500 and it grew to $3,000, what is the correct description of the increase? Is it a sixfold increase (sextupled), or a fivefold increase (quintupled)?
When I divide $3,000 by $500, the result is six, therefore, a sixfold increase?
Stephen La Rocque lui répond. |
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6(x-1)-3(x+1)-12=56+5x |
2007-10-24 |
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Megan pose la question :
6(x-1)-3(x+1)-12=56+5x
Penny Nom lui répond. |
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The length of a rectangle |
2007-10-24 |
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Kharez pose la question :
What is the length of a rectangle with an area of 24 square feet and a width of 4 feet?
Penny Nom lui répond. |
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Converting bases |
2007-10-24 |
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Johanna pose la question :
Is there an easy way to convert from base to base. For example, base 5 to base 9 or base 2 to base 4 etc
Stephen La Rocque and Penny Nom lui répond. |
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