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Golf for 14: 2 fourballs and 2 threeballs |
2015-05-20 |
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martin pose la question :
I have to organize 14 players to play four rounds of golf. Each round comprise two fourballs and two three balls .
What's the best combination to ensure that each persons plays with as many of the others as possible without playing with somebody more than twice?
Victoria West lui répond. |
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Manipulating an expression using logarithms |
2015-05-18 |
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Katie pose la question :
Solve x=At^be^-ct for b in terms of c.
The e is Euler's number, not a letter or random placeholder.
v
I've tried 2 methods on my calculator, and I am unsure as to why they give me different answers, and which one is correct.
For some reason, when placing a multiplication sign in between the A and the first t, I get a completely different answer. Why is this?
Also, which is the right answer for the question I have?
Thank you!
Katie :)
Penny Nom lui répond. |
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An isosceles right triangle |
2015-05-17 |
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Ari pose la question :
In a 45-45-90 triangle find the ratio of a leg to the hypotenuse
Penny Nom lui répond. |
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Cubic feet and cubic yards |
2015-05-17 |
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Richard pose la question :
If I have a bag that covers.8cubic ft how many bags are in 2.65 cubic yards?
Penny Nom lui répond. |
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An octagonal frame around a pool |
2015-05-17 |
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James pose la question :
I have a 20' pool and need to put a frame around it using 2by 4 what r the lengths and angle cuts
Penny Nom lui répond. |
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The intersection of a plane and a cone |
2015-05-16 |
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Tom pose la question :
Is there a way to derive an equation that describes the perimeter of the intersection of a plane and a cone regardless of the angle of the plane to the cone. Assume that the plane does not cut through the base of the cone, the x, y, z location of the vertex is known, the distance from the vertex to the plane through the axis is know., and that the angle of the cone is known.
Chris Fisher lui répond. |
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A pile of mulch |
2015-05-15 |
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Justin pose la question :
I have a pile of mulch that measures 19 feet wide at the bottom and has a height of 6 feet. I need to know how many yards of mulch I have.
Please help and help with the formula for further use. Thank you!
Penny Nom lui répond. |
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Two lorries approaching an intersection |
2015-05-15 |
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Nuraini pose la question :
Two straight roads intersect at the right angles. Lorry A, moving on one of the roads,
Approaches the intersection at 50mi/h and lorry B, moving on the other roads, approaches the intersection at 20mi/h.
At what rate is the distance between the lorry changing when A is 0.4 mile from the intersection and B is 0.3 mile from the intersection?
Penny Nom lui répond. |
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An angle of depression problem |
2015-05-14 |
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haxir pose la question :
find the height of the balloon directly above a town if the measure of angle of depression of another town 5km from the first town is 20°!6`
Penny Nom lui répond. |
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A calculus optimization problem |
2015-05-14 |
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Ali pose la question :
Given an elliptical piece of cardboard defined by (x^2)/4 + (y^2)/4 = 1. How much of the cardboard is wasted after the largest rectangle (that can be inscribed inside the ellipse) is cut out?
Robert Dawson lui répond. |
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Folding a rectangle to preserve the aspect ratio |
2015-05-09 |
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Anna pose la question :
If you fold a rectangular piece of paper in half and the resulting rectangles have the same aspect ratio as the original rectangle, then what is the aspect ratio of the rectangles?
Penny Nom lui répond. |
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Repeated decimals |
2015-05-09 |
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Vir pose la question :
Years ago I (re?)discovered 'cyclic division'. For example: if you arrange the number along a circle and put the number 142857 at the centre
all the numbers taken cyclically, starting with 1, are fully divisible by 37. Whatever the starting point of this number, it remains fully divisible by 37.
what is more, the number can be formed by taking the digits clockwise as well as anti-clockwise..This I call "full cyclic divisibility". In many cases, only clockwise cyclic divisibility is possible. But I have not come across a case where ONLY anti-clockwise divisibility occurs. Thus clockwise cyclic divisibility seems to be favoured. Could this be construed as a sign of chirality in mathematics?..
Chris Fisher lui répond. |
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A word problem |
2015-05-08 |
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JAMES pose la question :
A businessman bought a number of similar articles for a total of sh. 6000. Three of the articles turned out to be defective with no resale value. He sold the remaining articles at 12.5% each above the cost price making a total profit of sh 480. How many articles had he bought?
Penny Nom lui répond. |
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A triangle inscribed in a circle |
2015-05-07 |
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R2D2 pose la question :
A triangle is inscribed in a circle of radius 10. If two angles are 70 degrees and 50 degrees find the length of the side opposite the third angle?
Chris Fisher lui répond. |
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A circle is tangent to the y-axis |
2015-05-06 |
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Elynna pose la question :
What does it mean when a circle is tangent to the y-axis?
Thanks,
Penny Nom lui répond. |
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