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A 24 hour clock |
2008-01-31 |
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CARLA pose la question : at a certain time i looked at a 24-hour digital clock and noticed some things about the time. (1 The number in the hours section plus the number in the minutes section makes 60.(2 One of the digits in the minutes section is the square root of the other digit in the minutes section.(3 The sum of the digits in the minutes section is the number in the hours section reversed. what is the time? Penny Nom lui répond. |
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Determine the number of square inches for one piece of pie |
2008-01-31 |
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Annie pose la question : Ok i'm so lost it ain't even funny! HELP! Here's the question: A pie has a
radius of 7 inches and can be divided into 8 equal pieces. Determine the
number of square inches for one piece of pie. Explain your answer. Penny Nom lui répond. |
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Fibonacci numbers |
2008-01-30 |
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Beth pose la question : You've answered a question for a Linda Bach on Oct. 25, 1999 that has to do with a pet rabbit and stairs. (Working Backwards) We were wandering if there is a formula we can use to plug the numbers in? My 7th grader got that exact same problem. I've spent several hrs trying to come up with a formula. I've tried the combinations formula, the Pascal's triangle and the Permutations formula. It seems like it is something real close to those, but can't quite get anything to work. What kind of formula would work for finding the outcome of this problem? Thanks so much for your help. Beth Penny Nom lui répond. |
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A dependent variable |
2008-01-30 |
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lavada pose la question : i need the definition to dependent variable Stephen La Rocque lui répond. |
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The standard form of a line |
2008-01-30 |
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Thomas pose la question : I'm attempting to get this in standard form
slope=3;(1,5) Penny Nom lui répond. |
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Sum and difference of cubes |
2008-01-30 |
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Amanda pose la question : It has been a really long time since I was in Algebra and I can't remember how to factor cubes such as x^3 +81 or subtracting/adding fractions with variables such as [1/(x+h)+2]-[1/x+2]. Please help!!! Penny Nom lui répond. |
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The acre measurement of a property |
2008-01-30 |
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Kim pose la question : I would like to know the acre measurement of a property that is 673.68 feet by 820.76 feet. Penny Nom lui répond. |
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What solid figure has 1 flat surface and 0 vertices? |
2008-01-30 |
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Cheronda pose la question : What solid figure has 1 flat surface and 0 vertices? Stephen La Rocque and Harley Weston lui répond. |
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Integration by parts |
2008-01-30 |
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seth pose la question : hi i really dont understand integr
ation by parts. for example, the integral(t^2sintdt. i have u=t^2 and v'=sint also u'=t^/3 v=-cost
for the formula i have uv-integralvu' dx this is all well and good but i cant get it right. Harley Weston lui répond. |
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Percentage off |
2008-01-29 |
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Donna pose la question : What is the percentage of savings if you bought something for $34.00 that was originally priced at $37.60. Stephen La Rocque lui répond. |
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(1x2x3x...n)+1 |
2008-01-29 |
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Sayuri pose la question : what is the smallest natural number n, greater than 1, for which (1x2x3x...n)+1 is not a prime? Penny Nom lui répond. |
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Converting decimal fractions into common fractions |
2008-01-29 |
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Donna pose la question : Question from DONNA:
I need to change 6.9375 by 10.0625 into inches. Harley Weston lui répond. |
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The interior angles of a parallelogram |
2008-01-29 |
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amber pose la question : the measure of one interior angle of a parallelogram is 42 degrees more than twice the measure of another angle. Find the measure of each angle. Penny Nom lui répond. |
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Digging a pool |
2008-01-29 |
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tom pose la question : digging a pond 100ft by 70ft by12ft with a 2:1 side slope. how many cubic yards will be removed Harley Weston lui répond. |
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Solving a cone |
2008-01-29 |
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Marija pose la question : [Note: this problem shows how to solve anything about a cone if you are given two measurements.]
Is there a formula for finding the diameter of the base of the cone? Stephen La Rocque lui répond. |
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