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Factoring a cubic |
2005-02-20 |
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From Abraham:
How would you factor completely,
x3-x2+5x-5?
Answered by Claude Tardif. |
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le système RSA |
2005-02-19 |
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From Un eleve:
Je suis actuellement en classe préparatoire MP au lycée Henri Poincaré de Nancy et je souhaiterais obtenir des informations sur l'exponentiation modulaire car je réalise un TIPE sur la cryptographie et plus particulièrement le système RSA. pourriez-vous m'indiquez en quoi consiste l'exponentiation modulaire et comment cela fonctionne.
Answered by Claude Tardif. |
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$14k is 22% of ________ |
2005-02-19 |
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From A parent:
When one knows the
percentage, and a known number, how is the unknown total figured? In other
words, I know that $14k is 22% of what number??
Answered by Claude Tardif and Penny Nom. |
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1 pied linéaire |
2005-02-18 |
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From Christiane:
Pouvez-vous m'indiquer 1 pied linéaire égale quoi? 3 pied....?
Answered by Claude Tardif. |
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Graphing inequalities |
2005-02-15 |
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From Melanie:
Solve and Graph the following variable inequalities:
y<2x+4
y>-2x+6
3x+4y<-24
4x-6y>-24
Answered by Penny. |
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The weight of some concrete |
2005-02-15 |
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From Jordan:
I have 6 acres of concrete that is 3 feet thick the aprox. weight of 1 cubic yard of concrete is 4024 pounds I am trying to find out how much my 6 acres weighs. fortunately my concrete is 3 feet deep.
Answered by Penny Nom. |
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If the distance of a person from a tower is 100 m... |
2005-02-15 |
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From Agustin:
If the distance of a person from a tower is 100 m and the angle subtended by the top of the tower with the ground is 30 degrees, what is the height of the tower in meters?
Answered by Harley Weston. |
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One million times one billion |
2005-02-15 |
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From A student:
How much is ONE MILLION TIMES ONE BILLION in the American system ?
Answered by Penny Nom. |
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What is the least three-digit palindrome that is a square number? |
2005-02-12 |
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From Ben:
What is the least three-digit palindrome that is a square number?
Answered by Chris Fisher and Penny Nom. |
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Understanding fractions |
2005-02-11 |
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From C.J.:
I have some questions about the lesson, "Understanding Fractions" by Diane Hanson, Regina Catholic Schools. How successful was the lesson? Are there any changes you would recommend?
Answered by Diane Hanson. |
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arcsech x |
2005-02-10 |
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From Monica:
Prove that arcsech x = ln[(1 + (1-x2)(1/2)) / x ]
Answered by Penny Nom. |
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Th dimensions of a garden |
2005-02-09 |
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From Rebecca:
Nate's garden has a perimeter of 34 meters and an area of 72 square meters. What are the dimensions of the garden?
Answered by Penny Nom. |
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Sales before tax |
2005-02-09 |
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From Lynda:
I know my total sales for the month, which includes sales tax. How do I get to the sales dollars before the sales tax?
Answered by Penny Nom. |
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A quadratic equation |
2005-02-09 |
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From Jess:
6x+8=-x2
Answered by Claude Tardif. |
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A combination lock has 60 positions... |
2005-02-07 |
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From Kathy:
A combination lock has 60 positions arranged in a circle to which a pointer may be set. Three settings are required to open it and no one setting may be closer than 5 positions from the immediately preceding setting. How many different locks may be manufactured?
Answered by Penny Nom. |
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