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Two regions with equal area |
2008-02-13 |
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James pose la question :
There is a line through the origin that divides the region bounded by the parabola y=3x-5x^2 and the x-axis into two regions with equal area. What is the slope of that line?
Harley Weston lui répond. |
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Growth factor and growth rate |
2008-02-13 |
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william pose la question :
what is the difference between growth factor and growth rate?
Stephen La Rocque and Harley Weston lui répond. |
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Another goat problem |
2008-02-13 |
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jasmin pose la question :
A farmer staked his goat at the corner of the barn 30 m long and 25 m wide so that the goat could eat the grass near the corner of the barn. He found that if the rope by which the goat was tied was lengthened by 10 m, the goat could graze over four times as much as the area. How long was the original rope, if in neither case it was as much as 25 m long?
Stephen La Rocque lui répond. |
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Scale factors |
2008-02-13 |
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Dayne pose la question :
My teacher doesn't now how to teach us scale factors and i have a problem to make it easier to understand. The problem is: A map of Levi's property is being made with a scale of 2 cm : 3 meters. What is the scale factor?
Stephen La Rocque lui répond. |
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For the Canadian flag, the ratio of width to length is 1:2. |
2008-02-12 |
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Kelly pose la question :
For the Canadian flag, the ratio of width to length is 1:2.
What is the perimeter of a Canadian flag that is 12 ft. long?
Are all Canadian flags similar shapes? Explain with a diagram.
Penny Nom lui répond. |
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I am a 4-digit number |
2008-02-12 |
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Nickie pose la question :
I am a 4-digit number with no repeating digits. I am divisible by 5, my first two digits (left to right) make a number divisible by 3, and my first three digits make a number divisible by 4. Also, my digits have a sum of 19 and I have the digit 7 in the thousands place. Who am I?
Penny Nom lui répond. |
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Women, cats and kittens |
2008-02-12 |
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Paige pose la question :
There are 7 women on a bus. Each has a backpack. In each backpack there are seven cats. Each cat has seven kittens. How many legs are there total on the bus?
Penny Nom lui répond. |
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The cube root of 103163 |
2008-02-12 |
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jeff pose la question :
find the cube root of 103163
Stephen La Rocque and Harley Weston lui répond. |
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Prove (p & ~q) v p = p |
2008-02-12 |
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Tom pose la question :
Prove (p & ~q) v p = p
Do I need to use the absorption law p v (p & q)=p? If yes,how do I cope with the NOT(~) in q?Thank you.
Harley Weston lui répond. |
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How do I graph y = -2x^2? |
2008-02-12 |
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Max pose la question :
How do I graph y=-2x^2?
Penny Nom lui répond. |
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A real life example of a decagon |
2008-02-12 |
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Htet pose la question :
I have a math dictionary to complete by February 13, 2008, Wednesday, and I need to know what a real life example of a decagon can be. I need help on this!
Penny Nom lui répond. |
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The area of a rectangle |
2008-02-12 |
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mark pose la question :
The diagonal of a rectangle is 15cm, and the perimeter is 38cm. What is the area? It is possible to find the answer without finding the dimensions of the rectangle. Please help me and show as much of the problem as possible. Thank You
Penny Nom lui répond. |
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Drawing blocks from a box |
2008-02-11 |
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Inez pose la question :
A box contains 3 red blocks and 1 green block. A block is chosen without looking and not put back. Then another block is chosen. What are the possible outcomes?
Penny Nom lui répond. |
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5x squared - 15x - 200 |
2008-02-11 |
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Catherine pose la question :
I am having a problem solving this question:
5x squared - 15x - 200
Penny Nom lui répond. |
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A triangle and its incenter |
2008-02-11 |
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Elle pose la question :
In the figure, P is the incenter of triangle ABC, the radius of the inscribed circle is 6cm, and the perimeter of triange ABC is 38cm. What is the area of triangle ABC?
Penny Nom lui répond. |
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