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A cyclist a jogger and a fly |
2012-06-04 |
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Emd pose la question : A cyclist & a jogger are 20 miles apart.
Cyclist goes 20 mph & jogger 7mph towards each other.
A fly starts on nose of cyclist & flies at 20 mph from cyclist to jogger &
back & forth until they meet.
How far has the fly travelled? Penny Nom lui répond. |
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A parabola |
2012-06-04 |
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Madeline pose la question : In a parabola, I need to know what "a" b and c determine. I think that a determines the width of the parabola, but I am not exactly sure what b, and c do. Robert Dawson lui répond. |
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Translation of a graph |
2012-06-02 |
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Sean pose la question : the information is thus:
$f(x)=3(x+1)^2-2$
I wish to translate up 2 units and move 2 units right. Penny Nom lui répond. |
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An octagonal home |
2012-05-29 |
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Jan pose la question : Lot size is 30' by 30' will a 1,165sq ft. Octagon home fit on lot? I don't know the wall size's only the total size of building? Thank You for have this?
If this won't fit what size in sq ft will fit? Penny Nom lui répond. |
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Golf 16 |
2012-05-29 |
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marknp pose la question : 16 players only want tp play with one player each one time Victoria West lui répond. |
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The volume of a wedge |
2012-05-28 |
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olwethu pose la question : volume of wedge that have side 3,3 cm and 6,2 cm and 20 cm long? Penny Nom lui répond. |
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The area of a semicircle |
2012-05-28 |
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Rebecca pose la question : how do you find the area of a semi circle and then how do you add the area of a semi circle and the area of a rectangle? Penny Nom lui répond. |
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Multiples |
2012-05-28 |
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Kenneth pose la question : If I understand correctly , a multiple is a product of two numbers. For example some of the multiples of 6 are 6, 12, 18, 24, 30, etc. I just multiplied 6 by 1, 2, 3, 4, 5, etc.
Are the multiples of a fraction, for example, 2/3, determined in the same way? Are they 2/3, 4/3, 6/3, 8/3, 10/3, etc., or are they instead, 2/3, 4/6, 6/9, 8/12, 10/15, etc.?
Or do fractions have no multiples? Penny Nom lui répond. |
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Division in base eleven |
2012-05-27 |
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Zoe pose la question : How do you divide numbers that are in base 11?
For example;
9A7A6A divided by A Penny Nom lui répond. |
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6/49 |
2012-05-25 |
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Mark pose la question : Can you explain why the lotto 6/49 (a lottery of 49 numbers and 6 slots) is a combination and not a permutation?
It seems to me that it would a permutation given that the numbers are written in numeric "order" when you look them up in the newspaper.
I realize that 49P6 is orders of magnitude larger than 49C6. But I am confused about the reasoning behind it. Robert Dawson lui répond. |
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Finding the circumcentre |
2012-05-24 |
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Glen pose la question : Hi,
I'm having trouble finding the circumcentre of these 3 co-ordinates- A(1,1) B(10.5,1) and C(6,6).
I understand what circumcentre is but I cannot work out where it is.
Thanks very Much,
Glen Chris Fisher lui répond. |
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Eight character words |
2012-05-20 |
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KiranReddy pose la question : i have a requirement that , i need to generate 8 digit word [mix of 26 small letters and 0-9 digits , both are repeatable]
Please give me the count of such words we can generate Penny Nom lui répond. |
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A 10 inch circle using 2x4s |
2012-05-19 |
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Ralph pose la question : I want to form a 10" circle with 4"high pieces of 2 x4's. If each 2x4 piece sit next to each other,What degree would I have to cut
each side of the 2x4's, and how many would I need to form a 10 inch circle. I know there is a formula for this out there somewhere. Harley Weston lui répond. |
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How fast am i driving? |
2012-05-18 |
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bozenga pose la question : How fast am I driving if I cover 40 feet in .1 seconds (1/10th of a second)? Penny Nom lui répond. |
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Romeo and Juliet live 40 miles apart |
2012-05-18 |
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Abigaíl pose la question : Romeo and Juliet live 40 miles apart. Romeo jogs 8mph, while Juliet “fast walks” at 4mph. They leave their houses at the same time and journey toward each other.
a) How many hours after they start will they meet?
b) Approximately how many miles from Romeo’s house is their meeting point? Penny Nom lui répond. |
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