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Base 5 arithmetic |
2013-11-27 |
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From samuel:
Good day sir, please i don't understand when you say 4x4=13 in base five? In fact, am always having difficulties in addition, subtraction, division and multiplication of number in the same base other than base ten. Please can you give me one example each with details explainations?
Answered by Penny Nom. |
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2 concentric circles |
2013-11-27 |
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From Dimaris:
The radius of the outer circle of 2 concentric circles is x. An
equilateral triangle inscribed in the outer circle also circumscribes the
inner circle. What is the radius of the inner circle in terms of x?
Answered by Penny Nom. |
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Problem solving |
2013-11-26 |
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From Moira:
Amy has £5 more than Ben. Ben has twice as much as Chris. In total they have £20 how much do they each have
Answered by Penny Nom. |
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Three roommates share the rent |
2013-11-23 |
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From Cortlin:
Because of different bedroom sizes, three roommates decide to split the rent this way:
Roommate A pays 75% as much as B does, and C pays 40% as much as B does.
What fractional part and percent of the rent does each roommate pay?
Answered by Penny Nom. |
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A schedule for 32 golfers |
2013-11-22 |
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From Scott:
I would like a schedule for 32 guys playing in 8 foursomes for 13 week. I would like it so that no one plays in the same foursome more than once or twice. Is this possible to do??? Can you let me know at bogeysm@yahoo.com if you can do it and if you will do it.
Answered by Victoria West. |
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Admiring handblown glass ornaments |
2013-11-21 |
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From Ruby:
We are admiring hand blown glass ornaments 5% are
unmarketable due to defects what is the probability the 3rd
ornament is the first defective one
Answered by Penny Nom. |
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Why can't we add or subtract speed? |
2013-11-21 |
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From kashish:
why we cannot add or subtract "speed" / directly in any given distance , speed , time questions?
Answered by Chris Fisher. |
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Adding mixed numbers |
2013-11-20 |
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From Kathy:
1 3/4 + 1 2/3= ?
5 1/2 - 2 5/6= ?
Answered by Penny Nom. |
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Scheduling 10 people for 5 rounds |
2013-11-20 |
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From Keith:
Using golf as an example, I would like to schedule 10 people for 5 rounds with 2 groups of 4 and 1 twosome each round. I would like to minimze the number of times any one player plays with another. Can you provide an optimal schedule? Thank you for your help.
Answered by Victoria West. |
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The area of an irregular octagon |
2013-11-18 |
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From zafar:
if i have a rectangular octagon then how i can find its area
1. The length of rectangle is 42 and the width is 21 and and the base length is 42-12 =30 i mean the
length of base =30
Answered by Penny Nom. |
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Evaluate log3 14 |
2013-11-17 |
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From Tash:
Use the Change of Base Formula and a calculator to evaluate the logarithm, correct to six decimal places. Use either natural or common logarithms.
log3 14
Answered by Penny Nom. |
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Solve 0=-2(x-5)^2+4 |
2013-11-17 |
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From Leila:
How do you find the solution to 0=-2(x-5)^2+4
Answered by Penny Nom. |
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How many cords of wood is this? |
2013-11-17 |
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From melody:
5.5 ft wide and 24ft long and 10ft wide how many cords of wood is this?
Answered by Penny Nom. |
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Inflection Point |
2013-11-15 |
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From Z.:
I was wondering if the function F(x)= x/ln(x) had an inflection point?
If yes, why it's not visible on the graph of the function?
Thanks.
Answered by Penny Nom. |
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2cos(2A)=-2^1/2 |
2013-11-14 |
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From Mary:
Solve the following trigonometric equation over 0 being less than or equal to A but less than 2pie
2cos(2A)=-2^1/2
Answered by Penny Nom. |
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