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24 golfers, 6 days |
2009-10-03 |
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From patrick:
i need a pairing schedule for 24 golfers for six days playing in foursomes. Please
Answered by Victoria West. |
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Fill required for a driveway |
2009-10-03 |
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From Rose:
We are going to be pouring a driveway and it is needing a lot of fill. I can't seem to figure this out. Measurements are 30 ft x 30 ft and it goes from 2' deep to 4" (which is what I need overall as it will be 4" of concrete for the driveway. Please HELP Rose in GA.
Answered by Penny Nom. |
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Game of 24 |
2009-10-02 |
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From trami:
game of 24 by using -4 -7 -7 1?
Answered by Claude Tardif. |
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Prove by induction |
2009-10-02 |
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From Anonymous:
How can you prove the following by induction:
Any fraction (A / B), where 0 < (A / B) < 1, can be expressed as a finite sum
(1 / c(1)) + (1 / c(2)) + (1 / c(3)) + ... + (1 / c(k)),
where c(1), c(2), ..., c(k) are natural numbers greater than 0.
[ex. (20 / 99) = (1 / 9) + (1 / 11)]
Answered by Claude Tardif. |
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Completing the square |
2009-10-02 |
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From christopher:
how do i find the factors of x^2+3x+2 by completing the square ?
Answered by Robert Dawson. |
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Three circles |
2009-10-02 |
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From Brandon:
There is a quarter circle with a radius of 1. along one eged of it,
there is a semi-circl with a diameter of 1, and its center is on the
drawn line. there is another semi-circle again with the center on the
other drawn line, and this one has an unknown diameter of X. both
circles are internally tangent, and are tangent to each other. Find X.
Answered by Robert Dawson and Chris Fisher. |
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A right-angled triangle |
2009-10-02 |
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From Hunter:
The three sides of a right-angled triangle measure x-1, x+6, and 2x+1 in length.
What are the possible lengths of the hypotenuse?
Answered by Penny Nom and Melanie Tyrer. |
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Ordering pizza for 162 people |
2009-10-01 |
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From Jean:
Need to know how to feed about 162 people 70 square inches of pizza at the lowest price.
22" Pizza is $9.95
16" Pizza is $5.25
12" Pizza is $2.99
Answered by Penny Nom. |
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A line tangent to a parabola |
2009-10-01 |
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From kanchan:
for what value of c a line y=mx+c touches a parabola y^2=4a(x-a)
Answered by Penny Nom. |
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24 golfers |
2009-10-01 |
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From Peter:
I am working on a 19 week golf schedule with 24 golfers, and I would like to know how to make up six foursomes each week without having a player paired with the same golfers.
Answered by Victoria West. |
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In what order are the following digits? |
2009-09-30 |
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From Jewell:
In what order are the following digits?
0,2,3,6,7,1,9,4,5,8
Answered by Penny Nom and Claude Tardif. |
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How long (distance)did it take to stop? |
2009-09-30 |
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From mary:
a car travelling at 50km/h stops in 4 seconds.how long (distance)did it take to stop?
Answered by Harley Weston. |
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Grams per square meter |
2009-09-30 |
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From MANISH:
how to calculate gsm given kg of 144 sheets and size in inches
example 28" x 22" & 16.3 kgs = ?gsm (of 144 sheets)
Answered by Penny Nom. |
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-4 squared and (-4) squared |
2009-09-29 |
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From Andrea:
Is -4 squared the same as (-4) squared? I am thinking the first is -16 and the second is +16. I am trying to clarify for my students.
Answered by Penny Nom. |
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Differentiating y= square root(x-1) |
2009-09-29 |
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From edith:
describe the x-values at which f is differentiable.
y= square root(x-1)
Answered by Penny Nom. |
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