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Composite Numbers |
1998-10-07 |
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Greg Murphy pose la question :
What type of composite number has an odd number of factors?
Harley Weston lui répond. |
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Scientific Notation |
1998-10-07 |
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R. Pierce pose la question :
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.
Harley Weston lui répond. |
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A Kite |
1998-10-07 |
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Paul Scott pose la question :
What is the mathematical term for the kite shape?
Walter Whiteley lui répond. |
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Number Systems |
1998-10-07 |
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Frans pose la question :
What other number system are there besides the real number system and the complex number system?
Interested adult
thanks
Penny Nom lui répond. |
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A Sum or Product of Fractions |
1998-10-06 |
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Emily Robb pose la question :
Find a pair of fractions that when they are multiplyed and added the sum /product is the same
Penny Nom lui répond. |
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Le sang humain |
1998-10-06 |
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Golden pose la question :
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)
Claude Tradif lui répond. |
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Points on a Graph |
1998-10-03 |
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Nouver Cheung pose la question :
If the point P(-3,2) is on the graph of y=f(2x-1), what point must be on y=f(x)-3?
Harley Weston lui répond. |
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Adding Fractions |
1998-10-03 |
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Pam Bailey pose la question :
Can you help me simplfy this? (1/2a + 1/3b) - (1/4a - 1/5b) + (1/6a - 1/7) thanx
Harley Weston lui répond. |
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Students and Lockers |
1998-10-02 |
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Mike pose la question :
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.
Patrick Maidorn and Penny Nom lui répond. |
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French Francs |
1998-10-01 |
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Richie Franklin pose la question :
1.what did one dollar equal in France francs ten years ago, twenty years ago, and fifty years ago?
Chris Fisher lui répond. |
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Dividing a Class |
1998-10-01 |
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Tom Barker pose la question :
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.
Penny Nom lui répond. |
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Repeating Decimals |
1998-10-01 |
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Chris Norton pose la question :
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
Chris Fisher and Penny Nom lui répond. |
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Two Chords |
1998-09-29 |
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Jennifer Cane pose la question :
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.
Harley Weston lui répond. |
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An Implication |
1998-09-27 |
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Danielle Evans pose la question :
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
Chris Fisher lui répond. |
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A Horizontal Line |
1998-09-23 |
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Tess Warer pose la question :
Find the equations of a line through (-1,-5) and parallel to the X-axis.
Harley Weston lui répond. |
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