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How many bags of concrete will we need to use? |
2006-07-20 |
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Sue pose la question :
We are trying to pour some concrete
The area measures 26 ft long x 20 in wide. We want to pour the concrete 3 in thick.
One bag covers .41 cu. ft.
How many bags of concrete will we need to use?
Penny Nom lui répond. |
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The lot is a very odd shape |
2006-07-20 |
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Liz pose la question :
I have a square footage question. I'm looking at buying a piece of land and would like to know how to calculate the square footage of it. The lot is a very odd shape and I have attached a drawing of the lot:
Stephen La Rocque lui répond. |
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What is the area of the circle? |
2006-07-19 |
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Nana pose la question :
the circle is tangent to sides BC and AD of the 8 by 12 rectangle, ABCD. What is the area of the circle?
Stephen La Rocque lui répond. |
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Quadratics and quintics |
2006-07-18 |
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Lynne pose la question :
What is wrong with this statement? "The quintic is one step up from the dread quadratic equation." (Newsweek, Dec. 19, 2005)
Stephen La Rocque lui répond. |
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Mini Golf geometry |
2006-07-18 |
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Sarah pose la question :
I want to have my students explore mini golf and calculate the reflections and angles so that they can figure out how to hit a hole in one. I know that my daughter had various problems like this in eighth grade geometry, but I can't seem to find any internet activities of the appropriate level.
If you can steer me towards any resources, I'd be most grateful.
Natasha Glydon lui répond. |
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Area of a trapezium demonstration |
2006-07-18 |
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Karthik pose la question :
how can u " SHOW THAT THE AREA OF THE TRAPEZIUM IS EQUAL TO HALF THE PRODUCT OF ITS ALTITUDE AND THE SUM OF ITS PARALLEL SIDES." in an Innovative And Creative way.....
Stephen La Rocque lui répond. |
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Volume of rainfall |
2006-07-18 |
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Randy pose la question :
Calculate the amount (in gallons)of rainfall .98 inches will put over an area of 3.76 acres.
Stephen La Rocque lui répond. |
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Calculating the belt length of a three pulley system |
2006-07-16 |
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Mark pose la question :
I have a 3 pulley system with sides abc and pulleys ABC. Pulley A has radius of 10cm, pulley B has radius of 20cm, and pulley C has radius of 3cm. The side lengths are: (center to center of pulleys) between pulleys AB = 75cm, between pulleys BC = 100cm, and between pulleys AC = 50cm. I set these side lengths up as (according to law of sines and cosines) a = 100cm, b = 50cm, and c = 75cm. What is the length of the belt required for this system? I need to know how I would set this problem up and solve.
Stephen La Rocque lui répond. |
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The greatest common factor of two numbers |
2006-07-16 |
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Fadwa pose la question :
What is the greatest common factor(GCF) of the following algebraic expressions? 1680 and 6048
Stephen La Rocque lui répond. |
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Bike combination lock |
2006-07-16 |
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Alejandra pose la question :
I have a bike lock. It has three columns of the digets 1-9 and zero. I have forgotten the combination. Three numbers need to be imputed. What are the possible lock cominations, so that i can try to break the lock?
Stephen La Rocque lui répond. |
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Ounces of water to grams |
2006-07-16 |
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Liza pose la question :
How many grams is in 10 ounces? I'm asking this question because i just bought a sea monkey and it says add 10 ounces of water and I don't know what that means. I have asked my parents but neither of them know.
Stephen La Rocque lui répond. |
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Finding square footage from lengths in inches |
2006-07-14 |
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Ann pose la question :
How do I find out the square footage of a window 45" by 22" and 43" by 35.5"?
Stephen La Rocque lui répond. |
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Concrete for a chicken coop floor |
2006-07-13 |
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Chelsea pose la question :
How much concrete for a chicken coop floor? The dimentions are 3 slabs, 30 feet long and 4 inches thick, 6 feet 6 inches wide. One slab is 41 feet long, 6 feet 6 inches wide, and 4 inches thick.
Stephen La Rocque lui répond. |
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Cement for a large patio |
2006-07-13 |
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Jim pose la question :
I have a 60' by 100' patio. I am wanting to raise it 1 foot. The truck carrying the cement can only hold 10 cubic yards. How many truck loads would I need?
Stephen La Rocque lui répond. |
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The product of polynomials |
2006-07-13 |
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Lynne pose la question :
If you multiply two polynomials, what can you say about the degree of their product? What exponent applies here?
Stephen La Rocque lui répond. |
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