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Percentage |
2007-09-30 |
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carolyn pose la question :
What percentage is 1 million dollars to 6,450 million dollars
Penny Nom lui répond. |
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un jardinier plantent 10 arbres |
2007-09-30 |
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yannick pose la question :
un jardinier plantent 10 arbres.il a reussi a les disposer en formant 5 ligne de 4 arbres. retrouver une disposition possible
Claude Tardif lui répond. |
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Quel est ce nombre |
2007-09-30 |
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fred pose la question :
Un groupe de 7 enfants vient de recevoir une grosse quantité de billes.
ils font le partage : toutes les billes sont distribuées et ils en ont chacun le même nombre.
le nombre total de billes s'écrit avec les mêmes chiffres que 1991. Quel est ce nombre
Claude Tardif lui répond. |
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A sequence of numbers |
2007-09-30 |
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eleanor pose la question :
can you find the nth term of the sequence ( n starts at three)
1=?
2=?
3= 4
4= 10
5=20
6 = 35
7= 56
i only hand the 3rd 4th 5th 6th and 7th numbers in the sequence
can you please tell me how to find the nth term and what is it :)
Stephen La Rocque and Victoria West lui répond. |
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The normal approximation to the binomial |
2007-09-30 |
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m.j. pose la question :
Slot Machines The probability of winning on a slot machine is 5%. If a person plays the machine 500 times, find the probability of winning 30 times. Use the normal approximation to the binomial distribution.
Harley Weston lui répond. |
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y squared over 3 times 8 over y |
2007-09-30 |
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John pose la question :
y squared over 3 times 8 over y
Stephen La Rocque lui répond. |
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Dividing the surface of a sphere |
2007-09-30 |
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Jaroslaw pose la question :
Is there a formula or method to divide the surface area of a sphere into equal parts. For example; 36 equal parts, 60 equal parts or 92 equal parts and so forth.
Chris Fisher and Stephen La Rocque lui répond. |
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A 6 digit safe combination |
2007-09-29 |
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rich pose la question :
hi, i have a safe with a 6 digit combination. and i know the only
numbers used are the numbers 2 and 5. how many
combinations are there? and can you tell me all of them?
Penny Nom lui répond. |
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Three circles |
2007-09-29 |
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Kevin pose la question :
3 given circles of R80, R56 & R24 are all in contact. The 2 smaller ones are inscribed in the big one.
Find by calculation or graphically (both if possible) the radiusof a 3rd circle which will be in contact with all 3 given circles.
Chris Fisher lui répond. |
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Oil in a pipe |
2007-09-29 |
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Kristi pose la question :
How much oil is in a 40 foot section of pipe that its inside diameter is 36 inches?
Victoria West lui répond. |
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Two power expressions |
2007-09-29 |
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James pose la question :
find the values for a and b
(a*x to the power of -1*y)(-1/2*x*y to the power of b)=6*y to the power of -6
please show me how to do this. Can I begin by taking out the powers?
Leeanne Boehm lui répond. |
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The nth term |
2007-09-29 |
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zoe pose la question :
what is the nth term for the following sequence...
5, 2, -1, -4
Leeanne Boehm lui répond. |
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Describe the pattern |
2007-09-29 |
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Baffled pose la question :
Given a rule, extend a pattern and describe it in informal mathematical language:
a) 1, 6, 16, 36, _
b) 2, 6, 14, 30, _
c) 1, 8, 22, 50, _
d) 3, 9, 27, _
e) 2, 7, 17, 37, _
Stephen La Rocque and Penny Nom lui répond. |
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3x2/3 = 12/3 |
2007-09-28 |
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Shafan pose la question :
3x^2=12
Penny Nom lui répond. |
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How many barrels of liquid will it hold? |
2007-09-28 |
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Jason pose la question :
A tank is 8' wide by 8' tall x 45' long. How many barrels of liquid will it hold??
Stephen La Rocque and Harley Weston lui répond. |
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