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The area of a quadrilateral |
2004-08-25 |
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Rich pose la question :
I would like to know how to measure the area (the formula) of a quadrilateral.
Penny Nom lui répond. |
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The radius of a circle |
2004-08-24 |
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Peter pose la question :
If you slice any circle with a line, and call the distance of the line between intersections the "y" length and the perpendicular length to the shorter side of the curve the "x" length, what is the resulting equation for the radius?
Penny Nom lui répond. |
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50/5x - y |
2004-08-22 |
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Rick pose la question :
Niece has a question that was marked wrong but we are unable to determine how the teacher calculated and arrived at the answer? The problem was as follows:
50 / 5x - y =
x=5
y=1
Harley Weston and Leeanne Boehm lui répond. |
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The area of a lot |
2004-08-22 |
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Cassie pose la question :
I'm in the process of purchasing some land and I'm trying to figure out the square footage of the property. Unfortunately, it's be a while since I had to remember this type of formula. The property is 140 ft on left side, across the back it is 220.61 ft, the right side is 167.52 ft, the frontage is 105 ft.
Penny Nom lui répond. |
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15 cubic yards of dirt |
2004-08-22 |
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Barry pose la question :
My question...what is the equivalent of 15 cubic yards of dirt?
Penny Nom lui répond. |
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130 cc. is ? |
2004-08-20 |
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Ayrn pose la question :
130 cc. is ?
I have to put 130cc. of petroleum in a bucket how much exactly is that?
Also 110 cc.?
I have to also put 110cc. wood alcohol in a bucket aswell!
Penny Nom lui répond. |
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Golfing with Norm |
2004-08-19 |
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Norm pose la question :
I am organizing a golf tournament with 6 American and 6 Canadian players. We play 3 rounds of golf. Is there any way to arrange that everyone plays without playing with the same person twice. Each foursome must consist of 2 Americans and 2 Canadians with one of each in a cart. Your help would be much appreciated.
Claude Tardif lui répond. |
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Golfing with Sally |
2004-08-19 |
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Sally pose la question :
We are a group of 8 golfers (2 foursomes) and want to golf 3 games together. How can we arrange it so that we all get to golf with each other at least once?
At another venue, we have 18 golfers (3 foursomes, 2 threesomes) and want to golf 6 games together. Same question, how can we arrange it so that we all get to golf with each other at least once?
Claude Tardif lui répond. |
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A division symbol |
2004-08-18 |
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William pose la question :
i was wondering what the mathematical name for this division sign (÷).
Penny Nom lui répond. |
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A cube is inscribed inside a sphere |
2004-08-18 |
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A student pose la question :
A cube is inscribed inside a sphere with radius sqrt8cm. Find the
(a) length of the cube
(b) volume of the space inside the sphere but outside the cube.
Penny Nom lui répond. |
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The series from i=1 to n :ai |
2004-08-18 |
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Ken pose la question :
a.) Explain the difference between
the series from i=1 to n :ai
and the series j=1 to n :aj
b.) Explain the difference between
the series from i=1 to n:ai
and the series from i=1 to n :aj
Penny Nom lui répond. |
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Area of a triangle |
2004-08-17 |
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Barkie pose la question :
I'm going into tenth grade and I have a triangle who's sides measure 3ft, 4ft, and 5ft. I need to find the area however I don't know the height, or how to get it.
Chris Fisher lui répond. |
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Two water jugs |
2004-08-16 |
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A student pose la question :
You go to a source of water with two jugs and only two jugs. One jug has a capacity of exactly three pints and the other five pints. Both jugs are opaque (you can`t see inside them) and irregularly shaped. You have no other water containers. You do not have a scale. How can you use the two jugs and only the two jugs to measure exactly four pints of water?
Penny Nom lui répond. |
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Percentiles |
2004-08-15 |
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Gary pose la question :
Table 1
Selected percentiles for family income in the US in 1992
1 $1,300
10 $10,200
25 $20,100
50 $36,800
75 $58,100
90 $85,000
99 $151,800
Q. The percentage of families in Table 1 with incomes below $58,100 was about?
Penny Nom lui répond. |
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A probability question |
2004-08-15 |
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Gary pose la question :
In a law school class, the entering students averaged about 160 on the last
LSAT; the standard deviation was about 8. The historgram of the lLSAT
scores follwed the normal curve reasonable well.
Q. About what percentage of the class scored below 166?
Q. One student was 0.5 above average on the last LSAT, about what percentage
of the students had lower scores than he did?
Penny Nom lui répond. |
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