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An irregular pentagon |
2007-03-08 |
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From kelly:
If I have a pentagon with 2 sides of length 5 and one with a length of 2, what are the lengths of other 2 sides?
Answered by Stephen La Rocque. |
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A fountain as a parabola |
2007-03-08 |
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From Emily:
I have to do a math project proving that something in real life is a parabola. I really need some help here because i don't know where to start. I want to do it on a fountain and prove it's a parabola but how do i do that? I would really appreciate it if you could help Emily
Answered by Stephen La Rocque. |
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Chords and arc lengths |
2007-03-08 |
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From Angela:
my dad, who is a welder, asked me a question pertaining to chords and points on an arc to which I cannot for the life of me find an answer or an equation. if you could help, it would be much appreciated. I am sending an attachment of the problem.
Answered by Stephen La Rocque. |
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Find the length of the belt |
2007-03-08 |
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From Helen:
Find the length of the belt
Answered by Penny Nom. |
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The volume of a styrofoam cup |
2007-03-08 |
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From leanna:
find the volume of a styrofoam cup if the diameter of the top is three inches, the diameter of the base is 2 inches, and the height is 4 inches.
Answered by Penny Nom. |
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A circle is stretched horizontally by a factor of 2 |
2007-03-07 |
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From bob:
I was wondering if you could double check my work?
the question is as follows:
The circle X^2+y^2-2x-3= 0 is stretched horizontally by a factor of 2 to obtain an ellipse what is the equation of this ellipse in general form?
Answered by Penny Nom. |
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How many feet is on one side of an acre? |
2007-03-07 |
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From Melinda:
How many feet is on one side of an acre?
Answered by Melanie Tyrer. |
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Rotor-ride |
2007-03-07 |
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From Jessie:
In a "Rotor-ride" at a carnival, people are rotated in a cylindrically walled "room". The room radius is 4.6m and the rotation frequency is 0.550 revolutions per second when the floor drops out. What is the minimum coefficient of static friction so that people will not slip down? People on this ride say they were "pressed against the wall". Is there really an outward force pressing them against the wall? If so, what is its source? If not, what is the proper description of their situation (besides scary)?
Answered by Stephen La Rocque. |
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An excavation |
2007-03-07 |
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From Brandon:
you have and excavation area 140' long by 20' wide by 3' deep. What is the excavated volume?
Answered by Penny Nom and Brennan Yaremko. |
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nombre entier |
2007-03-07 |
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From ROUILLARD:
Quel est le plus grand entier inférieur au quotient de 200/9 ? Merci de votre réponse. Je pense à 19. Est-ce exact ?
Answered by Claude Tardif. |
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Congruent shapes |
2007-03-07 |
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From Bianka:
Could a triangle and a square ever be congruent? Explain.
Answered by Haley Ess. |
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An even function |
2007-03-07 |
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From Dana:
Find a function t(x) such that t(x)/x+3 = y is an even function
Answered by Haley Ess. |
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The height of a hexagonal pyramid |
2007-03-07 |
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From Carol:
i have been set a question that gives a regular hexagon and each of the sloping sides is 6cm from a corner of a base to the apex(point). it also has 2cm sides it looks sort of like this:
/\6cm
2cm
Answered by Penny Nom. |
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How much soil do I get? |
2007-03-07 |
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From Robbi:
I have a garden area that is 19 feet by 11 feet and I would like it to be 2 feet deep. I need to know how much soil to get in feet and yards. Could you please give me the formulas to figure this out. Thanks Robbi
Answered by Penny Nom and Melanie Tyrer. |
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4th grade equivalent fractions |
2007-03-07 |
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From Raymond:
5/8=?/16 ?=?
Answered by Melanie Tyrer and Sara Ulmer. |
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