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Two regions with equal area |
2008-02-13 |
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From James:
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?
Answered by Harley Weston. |
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Growth factor and growth rate |
2008-02-13 |
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From william:
what is the difference between growth factor and growth rate?
Answered by Stephen La Rocque and Harley Weston. |
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Another goat problem |
2008-02-13 |
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From jasmin:
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?
Answered by Stephen La Rocque. |
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Scale factors |
2008-02-13 |
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From Dayne:
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?
Answered by Stephen La Rocque. |
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For the Canadian flag, the ratio of width to length is 1:2. |
2008-02-12 |
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From Kelly:
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.
Answered by Penny Nom. |
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I am a 4-digit number |
2008-02-12 |
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From Nickie:
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?
Answered by Penny Nom. |
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Women, cats and kittens |
2008-02-12 |
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From Paige:
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?
Answered by Penny Nom. |
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The cube root of 103163 |
2008-02-12 |
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From jeff:
find the cube root of 103163
Answered by Stephen La Rocque and Harley Weston. |
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Prove (p & ~q) v p = p |
2008-02-12 |
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From Tom:
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.
Answered by Harley Weston. |
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How do I graph y = -2x^2? |
2008-02-12 |
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From Max:
How do I graph y=-2x^2?
Answered by Penny Nom. |
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A real life example of a decagon |
2008-02-12 |
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From Htet:
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!
Answered by Penny Nom. |
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The area of a rectangle |
2008-02-12 |
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From mark:
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
Answered by Penny Nom. |
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Drawing blocks from a box |
2008-02-11 |
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From Inez:
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?
Answered by Penny Nom. |
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5x squared - 15x - 200 |
2008-02-11 |
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From Catherine:
I am having a problem solving this question:
5x squared - 15x - 200
Answered by Penny Nom. |
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A triangle and its incenter |
2008-02-11 |
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From Elle:
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?
Answered by Penny Nom. |
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