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6 character strings using 1, 5 and 9 |
2014-06-15 |
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From Kevin:
How many 6 digit combinations (i.e., 159159) can be made from 3 different numbers (i.e., 1,5, and 9)? The numbers will obviously have to repeat. A link to a calculator that could list all the combinations would be helpful. I've come across these sites: http://textmechanic.com/Permutation-Generator.html, and http://textmechanic.com/Combination-Generator.html , but am not sure how to use them for my specific case. Thanks.
Answered by Penny Nom. |
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Profit |
2014-06-14 |
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From roudha:
find the profit of one item if it was bought for AED 180 and sold for
AED 275. assume that the additional costs are AED 25 .
Answered by Penny Nom. |
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Two regression lines |
2014-06-14 |
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From catherine:
Given a set of data values ,we can get two regression lines .Explain.
Answered by Robert Dawson and Penny Nom. |
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A model of the sun and the Earth |
2014-06-14 |
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From Lynn:
There is a model of the sun that is 2 1/2 inches in diameter. This is the only clue we have! How far away is the earth from this model?
Answered by Penny Nom. |
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A small solid silver pyramid |
2014-06-13 |
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From Jenesis:
For Awards Night at Baddeck High School, the math club is designing small solid silver pyramids.The base of the pyramids will be a 2 in by 2 in square. The pyramids should not weigh more than 2.5 pounds. One cubic foot of silver weighs 655 pounds. What is the maximum height of the pyramids?
Answered by Penny Nom. |
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The area of a circle of circumference 32.69 meters |
2014-06-11 |
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From coco:
Find the area of a circle with a circumference of 32.69 meters.
Answered by Penny Nom. |
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Forming a cylinder from a square |
2014-06-08 |
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From kalyani:
the curved surface of a cylinder is a square of diagonal 2*square root of 2. What is the area of the base of the cylinder?
Answered by Penny Nom. |
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Another conditional probability problem |
2014-06-08 |
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From PAVITHRA:
Two dice are thrown. What is the probability that sum of the numbers appearing on the die is eleven, if five is appear on the first die
Answered by Penny Nom. |
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Bags of sand |
2014-06-06 |
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From Robert:
We have a section that is 20ft long by 14ft wide and 4inches deep, the bags of sand are
.5 cubic ft. How many bags of sand do we need to fill this space evenly.
Answered by Penny Nom. |
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Factorials |
2014-06-06 |
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From penny:
What is factorial? For eg. Like 2!, 3! 4! Etc.
Answered by Penny Nom. |
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20 teams and 10 competition stations |
2014-06-04 |
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From Joel:
I have 20 teams. There are 10 competition stations.
Each station will accommodate exactly 2 teams to compete with each other at a time.
Each of the 20 teams needs to compete at each of the 10 stations exactly one time.
Here's the catch I cannot solve: how to schedule it so that each team plays EVERY OTHER TEAM once and only once, while never repeating a station.
Answered by Victoria West. |
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10 golfers, playing 7 rounds in 2 x 3balls and 1 x 4ball |
2014-06-04 |
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From adrian:
Hi,
We are off to Scotland on our yearly golfing trip soon.
Question is we have 10 golfers, playing 7 rounds in 2 x 3balls and 1 x 4ball.
I would like to ensure that each golfer plays with the other guys an equal amount of times,
guess 3ish? and we share the amount of times each player plays in the 4ball.
Hope you can help?
Answered by Victoria West. |
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How do we use logarithms in our daily life |
2014-06-01 |
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From ss:
how do we use logarithms in our dailylife
Answered by Penny Nom. |
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6 inches of dirt in a baseball field |
2014-06-01 |
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From Mary:
The baseball field is 20,000 Square feet, 6 inched deep
I need to know how many cubic yards of dirt this will generate.
Answered by Penny Nom. |
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How do I make fractions into decimals? |
2014-05-31 |
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From jay:
Hi,
I wanted to know how do I make fractions into decimals example 1 3/8?
Answered by Penny Nom. |
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