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Radio direction finders |
2014-01-09 |
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Nathan pose la question :
Radio direction finders set up two points A and B, which are 2.5 miles
apart on an east-west line. From A, it is found that the bearing of a
signal from a radio transmitter is N36.33 degress E, while from B the
bearing of the same signal is N53.67 degrees W. Find the distance of
the transmitter from B.
Penny Nom lui répond. |
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A box-and-whisker plot with one whisker |
2014-01-09 |
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Susan pose la question :
Question from Susan, a teacher:
I read your answer to the question about could a box & whisker have NO whiskers.
It made sense to me. However I am preparing for my advanced class and I have a sample graph comparing box plots of data.
Several of the box have only 1 whisker. There is no explanation for this. Can you help me out. I cannot think of a data set that would produce this. Thanks!
Penny Nom lui répond. |
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Two tuna boats |
2014-01-09 |
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amanda pose la question :
Two tuna boats start from the same port at the same time, but they head in opposite directions. The faster boat travels 10 knots per hour faster than the slower boat. At the end of 8 hours, they were 272 nautical miles had each boat traveled by the end of the 8 hour period?
Penny Nom lui répond. |
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When would one flip the inequality sign? |
2014-01-09 |
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Natasha pose la question :
Would one flip the inequality symbol in this equation: (explain why)
(-9a)/(-9) > 81
And please explain in what circumstances one would flip the inequality sign
THANKS!
Penny Nom lui répond. |
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A tire rolls 100 feet in a straight line |
2014-01-07 |
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Alanna pose la question :
A tire has a diameter of 26 inches. If it goes 100 feet in a straight line, how many complete revolutions did it make?
Penny Nom lui répond. |
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A scalene triangle |
2014-01-07 |
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cherry pose la question :
Hi
I have been given a scalene triangle of sides -
8m, 6m, and 10m ..
Please help me to find out the area and help me to find out the height ..
Penny Nom lui répond. |
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An arithmetic sequence |
2014-01-06 |
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paris pose la question :
find the twenty-fifth term of an arithmetic sequence whose first term is 12 and whose common difference is -6
Penny Nom lui répond. |
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An equilateral triangle inscribed in a circle |
2014-01-06 |
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Anonymous pose la question :
An equilateral triangle with sides 6 inches is inscribed in a circle. What is the diameter of the circle?
Penny Nom lui répond. |
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Profit as a percentage |
2014-01-04 |
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Dane pose la question :
If i brought a card for £5 and sold it for £10 what is my profit percentage? 50% or 100%
Penny Nom lui répond. |
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Units digit |
2014-01-03 |
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gracie pose la question :
9^23 units digit
Penny Nom lui répond. |
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25% profit |
2014-01-02 |
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Finn pose la question :
Hello,
The question is all about buy-and-sell business.
Problem:
Pencil - $6 for whole sale price
$8 if I sell the item
How do I get the 25% profit? (you can change the whole sale price and the retail price[if i sell the item])
if I buy the pencil at 24 pieces and sell it at 24 pieces.
Penny Nom lui répond. |
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A square frame |
2014-01-01 |
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steve pose la question :
using 6" wide boards how many inches would each of 4 boards equal in length need to be to produce a square with an inside perimeter of 84 inches on a side? what is the exterior perimeter? There is to be 45 degree cuts at each end of each board.
What formula is used to make this calculation?
Harley Weston lui répond. |
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4 children |
2013-12-31 |
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hope pose la question :
4 children; Peter is 7 years old & is 4 years younger than Dave. Dave is 9 years older than Paul. Paul is 11 years younger than Frances. Please list the children in order from oldest to youngest?!
thank you and anxiously await your answer, Hope
Penny Nom lui répond. |
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What does y= f(x) actually mean? |
2013-12-31 |
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John pose la question :
I don't understand how to pick coordinates for y=f(x).
I took a look at your answer to a previous question here:
http://mathcentral.uregina.ca/QQ/database/QQ.09.00/monica2.html
What does y= f(x) actually mean?
Penny Nom lui répond. |
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The markup as a percentage |
2013-12-31 |
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Alesha pose la question :
The buyer for a chain of stores purchased coffee tables in bulk, paying $18.00 each. The store will sell each coffee table for $54. What is the markup percentage?
Penny Nom lui répond. |
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