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An arc of a circle 2003-03-12
Melissa pose la question :
A strip of wood is 16 ft. long and is bent in the arc of a circle. Two radii, from the center of the circle to the ends of the arc, form a right angle. What is the approximate distance from one end of the wooden arc to the other?
Penny Nom lui répond.
Harmonic numbers 2003-03-12
Becky pose la question :
What can you tell me about the limit of harmonic numbers as it reaches infinity?
Penny Nom lui répond.
Monomials 2003-03-11
Roxy pose la question :
Explain why (x+y)z is not equal to xz+yz? P.S. Z is an exponent
Penny Nom lui répond.
Surface area of a sphere 2003-03-11
Kim pose la question :
a sphere has a surface area of 128 pi sq. units. What is its exact radius?
formula is 4 pi r2 I believe but how do I get radius

Penny Nom lui répond.
Division names 2003-03-10
A parent pose la question :
what is the answer to a division problem called
Penny Nom lui répond.
Three digit number 2003-03-10
Grace pose la question :
What three digit positive integer is exactly 32 times the sum of its digits?
Claude Tardif lui répond.
A question on combinations 2003-03-06
Jose pose la question :

I'm an architect student and have a question on combinations. I have a grid of 3 x 3, hence a total of 9 spaces. I have 3 elements to place in this grid.

How many possible ways are there of arranging this elements on this grid ? (order, orientation not important)

First putting the elements each in its own space and secondly allowing the elements at a given moment to "share" one space.

Since I got kind of obsessed with this I went ahead and graphically did all the combinations allowing "sharing", a grand total of 729. How could I have known this before hand ?


Penny Nom and Claude Tardif lui répond.
Mary typed a six digit number 2003-03-06
Pillar pose la question :
Mary typed a six digit number, but the two 1's did not show. What appeared instead was 2002. How many different six-digit numbers could she have typed?
Penny Nom lui répond.
(n+17)(n+7) = 0 2003-03-05
Janea pose la question :

What is the answer to 1. (n+17)(n+7)=0

What is the answer to:2. (y-15)(y-100)=0


Penny Nom lui répond.
Can a square be a rhombus? 2003-03-04
Beth pose la question :
Can a square be a rhombus? Some sources say yes, some say no. Some sources define a rhombus as a quadrilateral and parallelogram with equal sides, but without right angles. Some sources say a square is a special case of a rhombus. Clarity, please!
Walter Whiteley lui répond.
y < 2x + 1 2003-03-01
Erika pose la question :
how can I solve and graph y<2x+1 and which side in the graph should i shade after i finish solving my inequality?
Penny Nom lui répond.
Finding the area when the perimeter is known 2003-02-28
Yvette pose la question :
What is the size of an area in sqare feet when the perimeter totals 842 feet.
Sides are 190ft+180ft+200ft+54ft+118ft+100ft.

Penny Nom lui répond.
______cm=0.048km 2003-02-27
Antonette pose la question :
______cm=0.048km
Penny Nom lui répond.
Can a square be considered a rectangle? 2003-02-27
Carla pose la question :

Can a square be considered a rectangle? (since opposite sides are same length and parallel)

Would a regular hexagon or octagon be considered a parallelogram since its opposite sides are parallel? or does a parallelogram HAVE to have only 4 sides?


Penny Nom lui répond.
A number line 2003-02-27
Shery pose la question :

My seventh grader problem of the month

0__________1______________5____>

This is a arrow, the number should be below

A.Mrs Decker created an arrow representing a number line shown above. She wanted to find points and label them with a heart (G) for Valentine's Day so that the fraction 5/g is less than 1. (be sure to mark the G and not the fraction 5/g). She pondered, "Are there any other locations for G?" Is so help her description the location of all these points. If not why not?


Penny Nom lui répond.
 
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