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Composite Numbers |
1998-10-07 |
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From Greg Murphy:
What type of composite number has an odd number of factors?
Answered by Harley Weston. |
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Scientific Notation |
1998-10-07 |
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From R. Pierce:
Help! How do you express the following numbers in scientific(exponential)notation:0.00036 and 2998000000. I understand how to solve them if it was an equation, but this is confusing me. Please help me answer my questions. Thank you.
Answered by Harley Weston. |
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A Kite |
1998-10-07 |
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From Paul Scott:
What is the mathematical term for the kite shape?
Answered by Walter Whiteley. |
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Number Systems |
1998-10-07 |
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From Frans:
What other number system are there besides the real number system and the complex number system?
Interested adult
thanks
Answered by Penny Nom. |
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A Sum or Product of Fractions |
1998-10-06 |
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From Emily Robb:
Find a pair of fractions that when they are multiplyed and added the sum /product is the same
Answered by Penny Nom. |
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Le sang humain |
1998-10-06 |
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From Golden:
Le sang humain contient approximativement 2,5 x  globules rouges. Chaque globule a un rayon de 0,004 mm. Si on le place ces globules bout a bout, quelle est la longeur de la chaine en millimetres? En kilometres? Compare toi avec la circonference de la terre (24 000 km) (Travail avec exposants)
Answered by Claude Tradif. |
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Points on a Graph |
1998-10-03 |
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From Nouver Cheung:
If the point P(-3,2) is on the graph of y=f(2x-1), what point must be on y=f(x)-3?
Answered by Harley Weston. |
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Adding Fractions |
1998-10-03 |
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From Pam Bailey:
Can you help me simplfy this? (1/2a + 1/3b) - (1/4a - 1/5b) + (1/6a - 1/7) thanx
Answered by Harley Weston. |
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Students and Lockers |
1998-10-02 |
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From Mike:
There is a row of 1000 lockers.
There is a line of 1000 students. Student number 1 starts at the first locker and opens all 1000. Student number 2 starts at the second locker and closes every other one. Student number 3 starts at the third locker and goes to every third one, closing the open ones and opening the closed ones. Student number 4 does the same with every fourth locker and so on down the line... After all 1000 students have gone how many lockers are open and which ones are they? Please help! There is proboly a simple solution but we couldnt figure it out for the life of us. Please let us know how you solve it.
Answered by Patrick Maidorn and Penny Nom. |
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French Francs |
1998-10-01 |
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From Richie Franklin:
1.what did one dollar equal in France francs ten years ago, twenty years ago, and fifty years ago?
Answered by Chris Fisher. |
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Dividing a Class |
1998-10-01 |
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From Tom Barker:
My eighth grade niece called with the following homework problem: A teacher wanted to divide her class into equally numbered groups. She tried to divide the class into groups of two, but was one student short. She tried to divide the class into groups of five, but was one student short. She tried to divide the class into groups of seven and was successful. What is the least number of students that were in her class? I know the answer is 49, but don't know how to prove it. I must be getting old if I can't solve eighth grade math problems. Your assistance would be appreciated.
Answered by Penny Nom. |
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Repeating Decimals |
1998-10-01 |
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From Chris Norton:
Could you PLEASE give the formula to find out the number of digits in a repeating decimal before it repeats. I have been trying to get it for weeks from Math sites on the Internet. Can you please, please help me ?
Chris Norton
Answered by Chris Fisher and Penny Nom. |
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Two Chords |
1998-09-29 |
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From Jennifer Cane:
Question:
two parallel chords of a circle, AB and CD, have lengths of 10 cm and 17 cm respectively. The diameter of the circle is 21 cm. Find the shortest distance between the chords.
Answered by Harley Weston. |
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An Implication |
1998-09-27 |
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From Danielle Evans:
i am in my second year of math for the liberal arts and a problem has be terribly confused.. can you answer this [(p --> q) ^ (q --> p)] --> (p <--> q) is this an implication?? i would love to hear your answer thank you... danielle evans
Answered by Chris Fisher. |
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A Horizontal Line |
1998-09-23 |
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From Tess Warer:
Find the equations of a line through (-1,-5) and parallel to the X-axis.
Answered by Harley Weston. |
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