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Volume of a tube |
2004-01-14 |
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From Mike:
where can you find how to get volume of a tube:
3 in across x 3 inch high
5 in across x 5 inch high
same formula for both. ONE will get the other.
Answered by Penny Nom. |
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3/8 as a decimal |
2004-01-13 |
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From A student:
My Math Midterm is tommorow and I am stumped... how do you turn 1 and 3/8 into a decimal... I know the answer is 1.375 but I just copied down what the teacher wrote on the board.
Oh, and what are the three cases of percents?
Answered by Penny Nom. |
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What is a Fact Family? |
2004-01-13 |
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From Keisha:
I am helping my child with his homework. The worksheet we are trying to do ask the child to choose a number from inside of a circle and then one from inside of a triangle and use the number to build a fact family. The title of the worksheet is "Building a Fact Family House". I noticed that Silver Burdett Ginn,Inc. was the publisher of the book the worksheet came from so I was on the website trying to find an answer to my question. My question is "What is a Fact Family?"
Answered by Judi McDonald. |
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Polynomial division |
2004-01-13 |
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From Efrat:
How do we divide the following polynomials?
(x3 + x2 - x + 2) / (x + 2)
Answered by Penny Nom. |
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Twelve acres |
2004-01-13 |
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From Heather:
I am looking at buying a property that includes 12 Acres of land and I am trying to visualize what this size is equivalent to. I have searched your site and figured out how many square feet it is but I was hoping that you could apply 12 Acres to something tangible, like a football field!
Answered by Penny Nom. |
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Why is the letter J used for the integers? |
2004-01-13 |
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From Amanda:
Why is the letter J used to represent intergers as a symbol?
Answered by Penny Nom. |
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The square footage of an acre |
2004-01-12 |
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From Paul:
What is the square footage of an acre of land assuming all four sides are
equal in length.
Answered by Penny Nom. |
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Permutations and combinations |
2004-01-11 |
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From A student:
Are there more permutations than combinations for a series of 4-digit numbers with the integers 0-9? Can you illustrate calculations?
Answered by Penny Nom. |
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Cubic furlongs |
2004-01-11 |
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From A student:
1 mile=8 furlongs, how many cubic furlongs in a cubic mile?
Answered by Penny Nom. |
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Reflex angles |
2004-01-09 |
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From Sonya:
My daughter is searching for examples of reflex angles. We already have the hands of a clock but still need another example. Can you help us.
Answered by Chris Fisher. |
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Geoboards |
2004-01-09 |
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From Elissa:
What is a geoboard? I have a young girl in grade eight math who has a math
question using a geoboard.
Answered by Diane Hanson. |
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The area of a lot |
2004-01-09 |
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From Lea:
I have a problem. I am interested in purchasing a piece of property which has the following dimensions. It is 259.10 Feet on the north side x 61.20 Feet on the east side x 217.80 Feet on the south side x 196.70 Feet on the west side. It looks like an irregular rectangle shape. How do you figure out the square footage on this irregular sized property, and what is the correct square footage answer.
I have attached a survey map.
Answered by Harley Weston. |
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Inequalities |
2004-01-08 |
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From Michael:
How do you use inequalities in your job and in your everyday life?
Answered by Penny Nom. |
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Dividing zero by infinity |
2004-01-08 |
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From Jason:
What do you get when dividing zero by infinity? Our Calculus teacher was pretty sure that the expression was indeterminate from. However, if this is so...Why? Zero divded by any number (except zero) is zero, true. Any number (except infinite) over infinite is zero. So, why isn't Zero divided by infinite zero. A simpler way if I had 4 potatoes and was to split them among 2 friends, each friend would get 2 potatoes. However, if I had 0 potatoes and split them a infinite number of ways, each person would still have 0. Explain please!
Answered by Penny Nom. |
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Unusual occurances |
2004-01-08 |
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From Martin:
My wife and I have a question about the probability of something that happened to us a few years ago. So far, no one has been able to give me even an approximate answer. On my 32nd birthday, my wife and I went out to eat at local Japanese hibachi style restaurant. At the restaurant, couples/families are sat together around the hibachi where the cook performs a show. There was a fifteen minute or so wait, so my wife and I sat in the lounge waiting for our name to be called. When they called our names for the reservation, this is what happened. The first group called was the Martin family. Then they called the Francis family. We were the next family to be called, the Ashton family. My full name is Martin Francis Ashton! I think the odds of that happening to someone are very unlikely, but it did, and there is more. Next, we were all sat at the same table in that order, "Martin" family, "Francis" family, then us, the "Ashton" family. Again, it formed my full name!
Answered by Penny Nom. |
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