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Large exponents |
2004-03-26 |
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From John:
I
have encountered problem with the lack of memory every calculator
seems to have. No calculator, on or off the computer, I've found
has the amount of memory or writing space to calculate the sums I want
to solve. The sums are in great importance for my continued progress.
The sums are following:
16777216^1310270, 16777215^995328, 16777215^786432 and 16777215^480000
Answered by Claude Tardif. |
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Sections, area and acres |
2004-03-23 |
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From Tony:
An acre , it can be any size right . so when they
refer to a section of a township which is 640 acres,
also 1 square mile does this mean that 1 sections
length if sqaure and there is 5,280 ft in 1 mile does
it meanthat if you took 1 side of the square of of 4 sides
the lenth would be 5,280 feet long and by multiplying
5,280 x 5,280 it would give you the square mile in
square feet. i guess what I 'm asking is what is the
perimeter of 1 acre if it was shape like a square.
sorry to make this confusing but if you can help I
would appreciate it.
Answered by Penny Nom. |
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Four marbles on a box |
2004-03-22 |
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From Karyn:
Suppose 2 solid color marbles and 2 striped marbles are placed in a box. All are the same size. If one marble is randomly drawn from the box and replaced, then a second marble is randomly drawn, what is the probability that the marble drawn both times will be striped?
I know there is a simple formula for working this out but I can't remember how.
Answered by Penny Nom. |
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What's the next term? |
2004-03-22 |
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From Garrett:
A friend hit me with these questions and won't tell me the answer nor how... please help? I've racked my brain and did all sorts of formulas, but I can't get it to work out... please...
What's the next number in this series...
5, 12, 17, 29, 46, ?
And this series...
12, 19, 28, 39, 52, 67, ?
and these...
ocoa, boco, oboc, dobo, odob, ?
Answered by Claude Tardif. |
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BEDMAS |
2004-03-20 |
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From Brad:
I am in grade 7. My teacher tells me brackets always first, well i know that but, 5 (-4) x 2
Does the (-4) count as a bracket or is it just telling you not to minus 4 from 5 but to multiply 5 x -4 ? Am i correct?
Answered by Penny Nom. |
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A partial derivative |
2004-03-19 |
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From Penny Nom:
Is it possible to differentiate the following equation, if so could
you please explain.
S=SQRT(T-(5/X^2))
I would like the derivative of S with respect to X.
Answered by Harley Weston. |
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(x+y)^n = x^n + y^n + Z |
2004-03-18 |
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From Jean-Sébastien:
Bonjour,
je me m’appelle
Jean-Sébastien et je suis étudiant en secondaire
4. Je me demandais s’il est possible de développer le terme
(x+y)n, lorsque n est un entier positif. Il est évident
que xn+yn fera partie de la réponse mais comment définir le reste (Z
dans l’exemple ci-dessous)?
(x+y)2 = x2+y2+2xy
(x+y)n = xn+yn+ Z
P.S. : Une preuve mathématique démontrant la possibilité ou
l’impossibilité du problème serait grandement appréciée,
merci.
Answered by Claude Tardif. |
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A fraction of a fraction as a percent |
2004-03-18 |
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From Mary:
I would like to know if you could help me with this problem? Could you
take me though the steps
to this math problems.
3 =(?)% x 3
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16 4
the question states: Finding what is the percentage of a fractional
number and another fractional number.
Answered by Penny Nom. |
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A water lily |
2004-03-17 |
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From Inba:
A water lily with a rigid stem extends one foot above the surface of the water. When pulled over, it disappears beneath the water at a distance 3 feet from where the stem originally entered the water. How deep is the pond?
Answered by Penny Nom. |
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Factoring x^2 + 5x + 4 |
2004-03-14 |
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From Keenan:
how do I factor x^+5X+4?
Answered by Penny Nom. |
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Johann Muller |
2004-03-14 |
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From A student:
What major contributions to spherical trigonometry did Johann Muller make?
Answered by Penny Nom. |
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Baseball games |
2004-03-14 |
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From Fabian:
Let's say I have 12 different Baseball games. There is one of only 2 possible outcomes for each of the 12 games. How would I fugure out how many combinations there are for the 12 games and for 11,10, and so fourth.
Answered by Penny Nom. |
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A new baby |
2004-03-14 |
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From Jessica:
I just had a baby 3weeks ago, he is in the hospital and he can come home when he is 1800 grams, well i was wondering how many pounds that is?
Answered by Penny Nom. |
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Some ratio problems |
2004-03-13 |
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From Hossen:
1) After James spent 2/5 of his pocket money on magazines, and 1/4 of his pocket money at a football match, he had £1.75 left. How much pcket money did he have in the beginning?
2) A joint of Lamb costs £5.95 per/kg. The price per kilogram is reduced. A joint weighing 1.2kg is reduced by 50p.
A) What is the reduced price per kilogram?
c
Answered by Penny Nom. |
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Billions in Australia |
2004-03-12 |
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From An Australian:
how many million in one billion ?
Answered by Penny Nom. |
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