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How many bags of concrete will we need to use? |
2006-07-20 |
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From Sue:
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?
Answered by Penny Nom. |
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The lot is a very odd shape |
2006-07-20 |
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From Liz:
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:
Answered by Stephen La Rocque. |
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What is the area of the circle? |
2006-07-19 |
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From Nana:
the circle is tangent to sides BC and AD of the 8 by 12 rectangle, ABCD. What is the area of the circle?
Answered by Stephen La Rocque. |
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Quadratics and quintics |
2006-07-18 |
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From Lynne:
What is wrong with this statement? "The quintic is one step up from the dread quadratic equation." (Newsweek, Dec. 19, 2005)
Answered by Stephen La Rocque. |
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Mini Golf geometry |
2006-07-18 |
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From Sarah:
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.
Answered by Natasha Glydon. |
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Area of a trapezium demonstration |
2006-07-18 |
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From Karthik:
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.....
Answered by Stephen La Rocque. |
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Volume of rainfall |
2006-07-18 |
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From Randy:
Calculate the amount (in gallons)of rainfall .98 inches will put over an area of 3.76 acres.
Answered by Stephen La Rocque. |
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Calculating the belt length of a three pulley system |
2006-07-16 |
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From Mark:
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.
Answered by Stephen La Rocque. |
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The greatest common factor of two numbers |
2006-07-16 |
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From Fadwa:
What is the greatest common factor(GCF) of the following algebraic expressions? 1680 and 6048
Answered by Stephen La Rocque. |
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Bike combination lock |
2006-07-16 |
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From Alejandra:
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?
Answered by Stephen La Rocque. |
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Ounces of water to grams |
2006-07-16 |
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From Liza:
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.
Answered by Stephen La Rocque. |
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Finding square footage from lengths in inches |
2006-07-14 |
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From Ann:
How do I find out the square footage of a window 45" by 22" and 43" by 35.5"?
Answered by Stephen La Rocque. |
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Concrete for a chicken coop floor |
2006-07-13 |
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From Chelsea:
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.
Answered by Stephen La Rocque. |
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Cement for a large patio |
2006-07-13 |
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From Jim:
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?
Answered by Stephen La Rocque. |
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The product of polynomials |
2006-07-13 |
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From Lynne:
If you multiply two polynomials, what can you say about the degree of their product? What exponent applies here?
Answered by Stephen La Rocque. |
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