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A cubical shipping container |
2013-02-12 |
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From Chantel:
The length, width and height of a cubical shipping container are all
decreased by 1.0 ft, thereby decreasing the volume of the cube by
37 ft3(feet-cubed) What was the volume of the original container?
(recall: volume of cube with a side length x=x3) Define the variable,
write a quadratic equation and solve by factoring.
Answered by Penny Nom. |
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The equation of a circle |
2013-02-11 |
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From mhd:
Complete the equation of the circle centered at(0,4) with radius 3
Answered by Penny Nom. |
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Simultaneous equations |
2013-02-10 |
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From Michael:
2P + 1/3V =8
3P - 2/V=5
Answered by Penny Nom. |
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The height of a sheet metal cone |
2013-02-09 |
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From Charles:
Sheet metal cone.
I need a cone with a finished base of 38.19719 diameter
The cone is to be from a 48 diameter round with the wedge cut out.
The best calculation I have is the arc is 286.479. (correct?)
Could you verify this arc angle but more so what is the cone height?
Answered by Harley Weston. |
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4*4+4*4+4-4*4=??? |
2013-02-06 |
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From Jacky:
4*4+4*4+4-4*4=???
Answered by Penny Nom. |
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Quebec taxes |
2013-02-06 |
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From Cheryl:
can you please tell me the equation to calculate the Quebec taxes (5% & 9.975%) individually from the total?
thank you
Answered by Penny Nom. |
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Brian is x years old |
2013-02-06 |
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From Sabrina:
Brian is x years old.
Peter is 4 years older than Brian.
Amy is 2 years younger than Brian.
The total of their ages is 26 years.
Work out the value of x.
Answered by Penny Nom. |
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What is the domain of f(x)=sin(ln(x))/ln(x)? |
2013-02-06 |
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From Behrooz:
Hi, the following problem may be interesting:
What is the domain of f(x)=sin(ln(x))/ln(x)?
Be careful, domain is not obvious.
Best regards
Behrooz
Answered by Penny Nom. |
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A journey of two parts |
2013-02-06 |
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From Natalie:
Mr Lim drove at 70 km per hour for 1 hour and 30 minutes. He then drove another 55 km. if his average speed for the whole journey was 80km per hour, what was his speed for the 55 km journey?
Answered by Penny Nom. |
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An arithmetic progression |
2013-02-06 |
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From loberto:
the 3rd term of an a.p is 10more than the 1st term,while the 5th term is 15more than the 2nd term,find the sum of the 8th and 15th terms of the a.p if the 7th term is 7times the 1st term
Answered by Penny Nom. |
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Exponential form |
2013-02-05 |
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From Sandra:
What is 37,008 in exponential form? Help me please!!!
Answered by Penny Nom. |
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We have 10 golfers and four rounds of golf in two days |
2013-02-05 |
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From Steve:
We are having a golf tournament. We have 10 golfers and four rounds of golf in two days. We are going to break the group of 10 into two flights. Flight A and Flight B. We would like all members in Flight A to play one nine hole match against each other. All players in Flight B to play one nine hole match against each other. Could we play in groups of 4,3 and 3? What is the best way to make the pairings work?
Answered by Robert Dawson. |
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Integration from 0 to 2pi of 1/(3cos x + 2) dx |
2013-02-04 |
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From ankit:
Integration from 0 to 2pi of 1/(3cos x + 2) dx
Answered by Harley Weston. |
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A relation on a collection of sets |
2013-02-04 |
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From raji:
suppose R be a non empty relation on a collection of sets defined by ARB if and only if A intersection B is nullset.then.....the correct answer is R is symmetric and not transitive...my doubt is how it is symmetric
Answered by Penny Nom. |
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7x-1/4-1/3[2x -1-x/2]=19/3 |
2013-02-03 |
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From M:
7x-1/4-1/3[2x -1-x/2]=19/3
Answered by Penny Nom. |
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