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4 > -3m-7 >= 2 |
2010-06-05 |
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pamela pose la question : The question is
4>-3m-7>=2 Penny Nom lui répond. |
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11 trillion divided by 309,418,000 |
2010-06-05 |
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Dion pose la question : I am struggling to calculate what 11 trillion divided by 309,418,000 is. Penny Nom lui répond. |
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(x + a)^2 |
2010-06-04 |
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a pose la question : If the 3rd , 4th, 5th terms in the expansion of (x + a)powe "n" are 720, 1080, 810 respectively, then
find the values of x, a and n. Penny Nom lui répond. |
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Four circles in a square |
2010-06-04 |
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Daniela pose la question : four circles are drawn in a square such that the circles are tangent to each other as shown. find the area of the shaded region. It the goes on to show a diagram with a square and four circles drawn in it. The length of a side of the square is 24. Please help me! Penny Nom lui répond. |
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The outside surface area of a U shaped tube |
2010-06-03 |
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Adolfo pose la question : What is the formula for calculating the outside surface area of a U shaped tube? Robert Dawson lui répond. |
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The capilano suspension bridge |
2010-06-03 |
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nida pose la question : the capilano suspension bridge in north vancouver is the world's highest footbridge of its kind. the bridge is 140m long . from the ends of the bridge the angles of depression of a point on the river under the bridge are 41 degrees and 48 degrees. how high is the bridge above the river to the nearest metre Penny Nom lui répond. |
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A quadratic equation with imaginary numbers |
2010-06-03 |
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Alissa pose la question : I am solving a quadratic equation and I got this far;
(x-4+i)(x-4-i)=0
but how do I add the imaginary numbers
i know you multiply x by x and then add -4 + -4 but what do you do with the i's? Penny Nom lui répond. |
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Compound interest |
2010-06-01 |
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Kenneth pose la question : Hello:
I have a question regarding the following compound interest and future value
calculation.
Year 1 P + rP equals balance after the first year.
Year 2 (P + rP) + r(P + rP) equals balance after the second year.
Year 3 ? equals balance after the third year.
This question is in two parts.
1. What would follow for year three?
2. I know that a pattern will develop. What will it be so that I can determine
the extended pattern for following years ? Penny Nom lui répond. |
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A cylindrical vessel with belled ends |
2010-06-01 |
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George pose la question : surface area of a vessel with a cylindrical length of 60 feet, a diameter of 10 feet, and with belled ends of 5-foot radius Penny Nom lui répond. |
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Who is more extravagant? |
2010-06-01 |
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likhitha pose la question : kunal and ramit have Rs.40 and Rs.50 respectively. Kunal spends
Rs.18 and ramit spends Rs.21.Who is more extravagant ? Penny Nom lui répond. |
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graph y=(2x^2-3x)e^ax |
2010-05-31 |
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James pose la question : graph y=(2x^2-3x)e^ax Robert Dawson lui répond. |
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x/a +y /b =a+b : x/a^2+ y/b^2 =2 |
2010-05-30 |
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smithu pose la question : x/a +y /b =a+b : x/a2+ y/b2 =2 solve by using elimination method ,
cross multiplication, substitution method Penny Nom lui répond. |
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Integration of sin^3 (2x) |
2010-05-29 |
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ascher pose la question : how do you integrate this equation
∫ sin^3 (2x) dx Robert Dawson and Penny Nom lui répond. |
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Curvature of the Earth |
2010-05-29 |
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grant pose la question : if you have 2 plumb structures 10ft. tall, how far apart will they be when they are 1 inch out of parallel at the top Tyler Wood lui répond. |
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A fuel tank with a broken gage |
2010-05-28 |
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Kinsley pose la question : Hello, I have a fuel tank with a broken gage. It is a 2000 gallon tank. The dimensions are 64" dia. x 146" long. The fuel gage doesn't work, so the only measurement I can do is put a stick in it to see what is left. Currently it is at 19". PLEASE NOTE: the tank is laying on its side, meaning the long side is on the ground. So, how do I determine how much fuel is in the tank by the inches remaining? Thank you very much. Tyler Wood lui répond. |
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