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Thousands, millions, billions and trillions 1996-08-22
From Blaine:
What are the names of the periods in groups of numbers like 123,456,789. I need to know the names of them for school. I already know the first ones: units thousands millions billions trillions.
Answered by Penny Nom and Diane Hanson.
Where do 2^x and x^2 intersect? 1996-07-23
From Darin M Selfridge:
The intersecting points of y=2^x and y=x^2, graphed along with x^2=2^x, are obviously three... (2,4), (4,16) and (?,?). I am having problems figuring out the value, and even an equation for the (?,?). Can you help?
Answered by Harley Weston Chris Fisher.
How do you raise a number to an imaginary/complex power? 1996-07-03
From Andy Golden:
How do you raise a number to an imaginary/complex power? I know how you raise "e" to a complex power, like e^(pi*i): cos pi + i * sin pi But what about numbers other than "e"? What if I want to raise 5 to the 2i power? How is that done?
Answered by Chris Fisher.
What are fractals and are they of any practical use? 1996-06-26
From Ron:
What are fractals and are they of any practical use?
Answered by Chris Fisher.
Diagonals in a polygon 1996-06-18
From Steven:
How many diagonals are there in a polygon?
Answered by Denis Hanson.
Show that this construction yields a rhombus. 1996-06-16
From LennyB:
Hello, I have a problem. I doubt you can help me. If you have an isosceles trapezoid, and you connect the midpoints of the four sides of the isosceles trapezoid forming a quadrilateral, how do you prove that it's a rhombus in a 2 column proof??
Answered by Penny Nom.
a to the power zero 1996-06-03
From Beti:
Why is a number to the power 0 equal to 1?
Answered by Harley Weston.
Prove that these two lines are parallel. 1996-05-29
From Adam Piekarzewski:
Using parallel line theorems and side angle side etc. in triangle acd a line is drawn from point b on ac and point i on ad. another triangle fliped vertically and joined at d is named fdh, a line is drawn from point e on fd and point g on fh. ab = fg, ai = fe, ac || fh prove that bi || eg /- -/
Answered by Harley Weston.
How do you graph these inequalities? 1996-05-17
From Robert:
How do you graph the inequalities 5+gg, and g+h>6 on one coordinate plane?
Answered by Harley Weston and Maxine Stinka.
How do you graph these equations? 1996-04-30
From David Gamble:
How do you graph the equation x=3 on a x,y graph? Also how do you graph f(x)=-3x + 2 on the same graph?
Answered by Harley Weston and Maxine Stinka.
A coin problem 1996-04-16
From Julie Hebert and Simon Hamel:
How many weighings would you need to find out which pile is fraudulent?
Answered by Penny Nom.
An application of Pythagoras' theorem 1996-04-09
From Mike:
We'd like to know what practical applications there may be for the Pythagorean theorem.
Answered by Penny Nom and Maxine Stinka.
Area of an annulus 1996-04-04
From Ryan Levering:
What is the area of this annulus?
Answered by Penny Nom.
Area=Perimeter 1996-04-02
From Jason Pelowski:
When will the area and the perimeter of a right triangle be numerically equal?
Answered by Penny Nom and Maxine Stinka.
Square roots 1996-03-16
From Terry King and John:
We are just curious about how to manually calculate square roots.
Answered by Harley Weston.
 
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