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Sagitta |
2009-09-10 |
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Robert pose la question : Can you please tell me if there is a formula to figure out the Sagitta of an
arc when you know the radius, chord length, and arc length? Chris Fisher and Harley Weston lui répond. |
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The volume of a closed 3D mesh object |
2009-09-10 |
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Ozen pose la question : I want to calculate the volume of a closed 3D mesh object having a surface made up
triangles. Robert Dawson lui répond. |
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4 number combinations |
2009-09-10 |
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jeremy pose la question : Here's my question...
I've been playing the lottery, I know what a waste of time. I would like to know how many 4 number combinations can be derived from a set of 10 numbers, when no number can be repeated in the present string of 4 numbers being selected. Robert Dawson and Harley Weston lui répond. |
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Bisecting rays |
2009-09-09 |
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frank pose la question : Ray OC bisects angle AOB, ray OD bisects angle AOC, ray OE bisects angle AOD, ray OF bisects angel AOE, and ray OG bisects angle FOC: if angle BOF=120 degrees, then find angle DOE? Confused! Penny Nom lui répond. |
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Exponential form |
2009-09-08 |
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hanna pose la question : hi,
well i am really bad in math and i have a math paper and i was just
wondering what 3x3x3x3x3 was in exponential form and what is
exponential in a way a person like me would understand? Penny Nom lui répond. |
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A ladder leaning against a wall |
2009-09-08 |
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Mackenzie pose la question : A 7 foot long ladder is leaning against the building. The foot of the ladder is 2 feet from the base of the building. How far up the wall is the top of the ladder? Stephen La Rocque lui répond. |
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A circular border around a pool |
2009-09-08 |
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Calvin pose la question : A pool in the shape of a circle measures 10 feet across. One cubic yard of concrete is to be used to create a circular border of uniform width around the pool. If the border is to have a depth of 3 inches, how wide will the border be? ( 1 cubic yard=27 cubic feet ) Stephen La Rocque lui répond. |
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Helen has twice as many dimes as nickles. |
2009-09-08 |
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Dan pose la question : Helen has twice as many dimes as nickles. She has 5 more quarters than nickles. She has $4.75. How many nickles does she have? I know she has 14 dimes, 7 nickles and 12 quarters. How do you put this into an algebra equation? Stephen La Rocque lui répond. |
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A triangle on a sphere |
2009-09-07 |
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Rohit pose la question : How do I find the angles of a triangle drawn on a sphere (spherical triangle)? Chris Fisher lui répond. |
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f(x + h)-f(x) |
2009-09-07 |
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Marie pose la question : For each function defined as follows, find a.) f (x+h) b. f(x+h)-f(x) c. [f(x+h)- f(x)]/h.
Problem: f(x)= -1/ x^2. Harley Weston lui répond. |
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10 golfers |
2009-09-06 |
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Bill pose la question : We have 10 golfers scheduled to play over five days on vacation in November. Each day we will play in three groups of three and one foursome.
Is there an optimum solution that would assure that every golfer plays with every other golfer at least once while no golfer plays an inordinate number
of times with any other golfer or too often in a foursome? Victoria West lui répond. |
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Divide and reduce to lowest terms. |
2009-09-06 |
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Karen pose la question : Divide and reduce to lowest terms.
Use the cancellation technique as needed
4 2/3 divided by 12
14/3 divided by 12/1 not sure wheer to go from here with the cancellation technique Penny Nom lui répond. |
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4 couples seating themselves at a round table |
2009-09-04 |
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Hui pose la question : Q: 4 couples seating themselves at a round table. Men must seat together and women seat together. How many ways are there? Answer in the printed text is 576. I got 144. Pls advice. Claude Tardif lui répond. |
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Paddling downstream |
2009-09-04 |
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Nicole pose la question : You head downstream on a river in a canoe. You can paddle at 6 km/h and the river is flowing at 2.4 km/h. How far downstream will you be in 55 minutes? Penny Nom lui répond. |
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A three digit number |
2009-09-04 |
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Mark pose la question : How many 3 digit positive integers are odd and do not contain the digit 5? Penny Nom lui répond. |
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