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Maximize |
2000-03-12 |
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Tara Doucet pose la question :
My question is Maximize Q=xy^2 (y is to the exponent 2) where x and y are positive integers such that x + y^2 ( y is to the exponent 2)=4
Harley Weston lui répond. |
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An equilateral triangle in a circle |
2000-03-11 |
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Michael Setlik pose la question :
An equilateral triangle is drawn within a circle such that all three points of the triangle just touch the inside of the circle. Given the diameter of the cicle as six inches what is the length of the sides of the triangle?
Harley Weston lui répond. |
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Simultaneous equations |
2000-03-11 |
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Laura Molck pose la question :
My name is Laura Molck and I am in Year 11 in Australia. Please help me with the following. I know that they are all simultaneous equations which I can do but I have trouble with the formulae to work the equations. Can you please help!! 1. A tent manufacturer produces 2 models, Outback and Bushwalker. From earlier sales records it is known that 20% more of the Outback model is sold than the Bushwalker. A profit of $200 is made on each Outback sold, but $350 is made on each Bushwalker. If during the next year a profit of $177,000 is planned how many of each model must be sold?
Penny Nom lui répond. |
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Completing the square |
2000-03-11 |
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Sandra pose la question :
How do i complete the square and leave in simple radical form? x squared + 18x - 17=0
Penny Nom lui répond. |
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Congruent parts of congruent figures |
2000-03-10 |
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Erica pose la question :
Yesterday, I recieved a test problem asking to prove two line segments equal. Here is the problem as I was given it: Given: paralleogram ABCD
AE is perpendicular to DB
CF is perpendicular to DB
Prove: AE is equal to CF I answered the problem as follows:
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Walter Whiteley lui répond. |
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A goat problem |
2000-03-10 |
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Nancy pose la question :
A farmer has a fenced-in, circular field with an area of about one acre. A goat in the field is tethered to one of the fence posts with a rope which gives the goat approximately one-half acre of grazing area. To the nearest foot, how long is the rope?
Chris Fisher lui répond. |
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Systems of linear equations |
2000-03-10 |
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Ann Marie Devereux pose la question :
hi there!!, I guess I have a problem!!! 3x+4y=10 (over)
4x+y=9 2x=5y+3 (over)
x=3y+1
Penny Nom lui répond. |
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Grazing area for a goat |
2000-03-10 |
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Amy pose la question :
A goat is tied in the middle of a side of a square building whose sides are 2 yards long. The rope is 4 yards long. What is the grazing area for the goat?
Harley Weston lui répond. |
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Box and whisker plots |
2000-03-09 |
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Brett Blake pose la question :
Do you have any information on Box and whisker graphs?
Harley Weston lui répond. |
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Some equations |
2000-03-08 |
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Maria pose la question :
Hi, could you help me with these questions: Find x & solve - 7-2x/3=9
- 4x+3/5=-2
- 6-2x=14
- -1/7x=-4/3+1/6
Penny Nom lui répond. |
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Mathematical deduction and mathematical induction |
2000-03-07 |
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Espera Pax pose la question :
What are mathematical deduction and mathematical induction, and what is the difference between them?
Harley Weston lui répond. |
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Making dolls |
2000-03-07 |
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A 6th grader pose la question :
How many small dolls can be made from 3 lbs. of dough if each doll uses 7/8 lbs
same question if each doll takes 3/8 lbs.
Penny Nom lui répond. |
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A mixture problem |
2000-03-06 |
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Rebecca Edwards pose la question :
A tank in which cholocate milk is being mixed contains a mixture of 460 liters of milk and 40 liters of chocolate syrup initially. Syrup and milk are then added to the tank at the rate of 2 liters per minute of syrup and 8 liters of milk per minute. Simultaneously the mixture is withdrawn at the rate of 10 liters per minute. Find the function giving the amount of syrup in the tank at time t.
Harley Weston lui répond. |
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Is a sheet of paper 2-dimensional? |
2000-03-06 |
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Jaclyn Evans pose la question :
One day, we were discussing 3-dimensional items. Is a sheet of paper considered a 3-dimensional shape? Or is it 2-dimensional as described by 8.5 by 11 size? Also, could you give me an example of a 4-dimensional item or scenario?
Harley Weston lui répond. |
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10 000 000 = a x b |
2000-03-06 |
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Spencer Jaffe pose la question :
What two numbers that don't end in zero, multiplied equal 10,000,000.
Claude tardif lui répond. |
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