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Dotted graph paper 1999-04-08
From Bridget Winward:
A teacher at our school is trying to locate dotted graph paper online or in print. His class would like to make three dimensional, geometerical drawings.
Please let us know if you have a good source.

Answered by Jack LeSage.
Converting Metric Measurements 1999-04-08
From Rick:
Do you have any simple explanations for converting Metric measurements to other Metric measurements?? What helpful hints do you also have for a 5th Grader...
Answered by Penny Nom.
Universal Area 1999-04-08
From Karen Richardson:
I need a formula for area that works for a square, a rectangle, a parallelogram, a trapezoid, and a triangle.
Answered by Jack LeSage, Chris Fisher and Harley Weston.
Instant Winner 1999-04-07
From FSSTAN:
The probabilities of being an "instant winner" of $25 or $50 in a lottery are 1/600 and 1/1200, respectively. The mathematical expectation of being an "instant winner" of $25 or $50 is?
Answered by Jack LeSage and Penny Nom.
Area of an irregular shaped objects. 1999-04-07
From Jesse Townsend:
How do I find the surface area of an irregulary shaped object such as someone's knee from the thigh to shin?

Thanks.
Answered by Walter Whiteley.

Large Numbers 1999-04-05
From CK:
Hello. I need a lesson plan for grades 4 to 7 dealing with the concept of large numbers. Specifically, how to teach scientific notation. The lesson plan has to deal with the following: the size of the universe is so huge that is is almost beyond the ability of the mind to comprehend. One way is to measure...
Answered by Chris Fisher.
Volume of a cube. 1999-04-04
From Alex Elkins:
How do you find the volume cubic matter of a cube or space, example how many cubic feet in an example 6" high 4' X 6' rectangle

Thank You
Answered by Penny Nom.

Pi/4 1999-04-04
From Daniela Annarella:
What is the 30th digit of pi(1/4) after the decimal point?
Answered by Harley Weston.
T-shirts 1999-04-04
From Valerie:
At a discount T-shirt shop the manager marked a special batch of T-shirts that originally sold for $2.00. When all the shirts sold the shop had collected $603.77.

How many shirts did they sell and what was the price per shirt?
Answered by Jack LeSage and Penny Nom.

Finding Excluded Values 1999-04-01
From Lorraine Le Cam:
The question asks me to find the value of the variable that must be excluded in each rational expressionion. The operation is:

a
______
a - 2

How do I work this out?
Answered by Harley Weston.

Quadratic equations 1999-03-31
From Ken Niebergall:
#1 a2 - 10a = 2a - 36

#2 t(t - 5) = 5 (t - 5)

#3. (x + 4)(x - 3) = 8

Thanks.
Answered by Jack LeSage and Penny Nom.

Factoring 1999-03-30
From Maggie Stephens:
I don't know anything about factoring would you plese help me.

3x4 - 48

54x6 + 16y3

125-8x3

12x2 - 36x + 27

9 - 81x2

a3 + b3c3

I would greatly appreciate any help you can give me thanks.
Answered by Jack LeSage.

Standard Form 1999-03-30
From Pam:
How do you put this equation into standard form?

y=3.572x+5.409

Would you please put this equation in this form Ax+Dy+C=0
Answered by Penny Nom.

A Frustum 1999-03-29
From Monica Armour:
What do you call a square pyramid that has had the top chopped off?
Answered by Chris Fisher and Jack LeSage.
Factoring polynomials 1999-03-29
From Karen:
I have been unable to factorise a polynomial equation and was wondering if you could please help. It is level (10-12) maths. The polynomial is x3 + x2 - 24x + 36
I have tried a few factorisation methods such as foctorisation by grouping but it won't work this polynomial. Please help.

Answered by Jeff Walters and Jack LeSage.
 
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