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The area of a hexagon |
2005-10-23 |
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Bhavin pose la question :
i have a radius of hexagon given as 1.5 km. and i want to find the area of that hexagon.
Penny Nom lui répond. |
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(x/1+x)^x |
2005-10-23 |
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A student pose la question :
LIMIT x-.->0 (x/1+x)x how to solve it.
Penny Nom lui répond. |
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Least common multiple |
2005-10-22 |
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Dayna pose la question :
I'm stumped! I can't seem to come up with a least common multiple of 22 and 25. Is there one?
Penny Nom lui répond. |
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A triangular pyramid |
2005-10-22 |
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Stacee pose la question :
When stacking oranges to form a triangular pyramid, each orange touching 3 oranges below it. In order to have a pyramid with 6 layers, how many oranges should be on the bottom layer?
Penny Nom lui répond. |
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A conical hat |
2005-10-22 |
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Manish pose la question :
I need to make a conical hat for my daughter's upcoming fancy dress, the circumference of the base(hollow) is 50 cms,the height of the cone is 30 cms,what should be the dimensions of the paper which will make a cone of the beforementioned dimensions?
Penny Nom lui répond. |
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Improper fractions |
2005-10-21 |
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Joe pose la question :
Is a whole number an improper fraction. For example, is 4 an improper fraction? Is 4 an improper fraction? Is 4 the simplest form for 20/5? Are 4 and 20/5 equivalent fractions?
Penny Nom lui répond. |
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How many cubic feet are in 8 yards? |
2005-10-20 |
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Neisha pose la question :
I am trying to figure out how many cubic feet are in 8 yards. I am trying to pour a concrete slab. The width is 24 ft, lenth is 30 ft, and it is 4 inches thick
Penny Nom lui répond. |
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sin(kx) = x |
2005-10-20 |
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David pose la question :
What is an integer value for k so that sin(kx) = x has exactly 2005 solutions? How does one arrive at the answer?
Harley Weston lui répond. |
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A cube in a sphere |
2005-10-19 |
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Damian pose la question :
A sphere passes through the eight corners of a cube side 10cm. Find the volume of the sphere.
Penny Nom lui répond. |
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Painter's caps |
2005-10-19 |
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Duk pose la question :
The equation C=10 +2n represents the cost in dollars, C, for n painter's caps advertising the walkathon. Which pair of values could represent a number of caps and the cost for that number of caps, (n, C)?
(0, 10) (7, 24) (15, 30)
Penny Nom lui répond. |
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Coefficient of variation |
2005-10-19 |
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Jan pose la question :
I am currently teaching the coefficient of variation and am wondering if there are some guidelines as to the interpretation of this statistic. I understand that it measures the variation in a variable relative to the mean - but what is the cut off for "too much" variation expressed in this way???
Andrei Volodin and Penny Nom lui répond. |
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Inverse |
2005-10-18 |
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Pauline pose la question :
Défi ! a et b désignent deux nombres distincts non nuls. Peut-on trouver un nombre à retrancher du numérateur et du dénominateur du quotien a/b pour obtenir son inverse b/a?
Claude Tardif lui répond. |
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Can we take the derivative of independent variable |
2005-10-18 |
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Mussawar pose la question :
why we take derivative of dependent variable with respect to independent variable .can we take the derivative of independent with respect to dependent.if not why.
Walter Whiteley lui répond. |
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A line that intersects a circle |
2005-10-18 |
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Bruce pose la question :
I would like to solve the following problem illustrated below. How do you calculate the length of a line that intersects a circle.
Penny Nom lui répond. |
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What is the angle between 2 non-collinear parallel lines? |
2005-10-17 |
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Ben pose la question :
What is the angle (if any) between 2 non-collinear parallel lines?
Chris Fisher and Walter Whiteley lui répond. |
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