4 articles trouvés pour ce sujet.
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Arrays |
2010-09-09 |
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Susan pose la question :
I'm a lawyer but evidently incredibly stupid at 4th grade math. . . .Question: cover a tabletop with 9 rows of square tiles with 9 squares in each row. How many tiles cover the tabletop? Then, the paper shows a 9x9 array and asks how it is used to solve the problem. My daughter wrote 9x9=81. The next question is "what are the products of the two smaller arrays?" ???? There are no other arrays - are we to make smaller arrays from the 9x9? how?
Robert Dawson lui répond. |
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Pairs of prime numbers |
2003-10-13 |
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Nikolas pose la question :
Use pairs of prime numbers to find all the numbers less than 50 that have only two prime factors. Make an organized list.
Penny Nom lui répond. |
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1575 |
2003-03-13 |
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Sharyn pose la question :
find 6 integers that when multiplied with each other equal +1575 and when the same integers are added together equal zero. there are more positives than negatives and one of the numbers is a double digit between 10 and 20
Penny Nom lui répond. |
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Multiplying vectors |
2001-10-22 |
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Murray pose la question :
Could you please explain why a vector times a vector is a scalar and how to derive the formula vector a * vector b = ab cos(a,b)
Harley Weston lui répond. |
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