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The fourth side of a property |
2008-05-14 |
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From Penny:
Property has 3 measurements and 2 angles and I want the altitude at a particular point. Corners are sw, nw, ne and se. 1 want the 4th saide measurement confirmed (we think 146.07') and the altitude measurement at 25' from sw (on the sw-se side)
The angles provided are interior at nw 67.38 degrees and the opposing corner se interior appears to be 68.58 degrees. the 3 sides with measurements are: sw to nw=54.07'. sw to se 146.07' and se to ne 53.57'. If you would help, we would really appreciate it. Thanks! Penny
Answered by Harley Weston. |
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How much seed do I need per plot? |
2008-05-13 |
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From Jaye:
The plot size is 5 m X 2 m. The seeding rate is 12Kg/ha. How much seed do I need per plot? I have failed to get a proper answer.
Thank you.
Answered by Penny Nom. |
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Searching for an adult math anxiety course |
2008-05-13 |
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From Helen:
Hello
I am a professional female in my 30's with an continued fear of maths, particularly mental arithmetic. I've been able to keep my 'secret' hidden until now but I dread that one day I'll be found out.
More importantly, it is preventing me for applying for promotion where I know maths will be required. I've tried many times on my own to overcome this but soon get frustrated.
Therefore, I've been searching the internet to find short (up to one month) courses specifically adressed to alleviating my fears and hopefully teach me maths again in a way that I can remember and not get flustered.
Unfortunately, I have not been able to find anything at least not for adults.
I would be wiling to take a long vacation to attend this type of course, or tutoring, in any country.
I'd much appreciate any pointers.
Helen
Answered by Walter Whiteley. |
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What is the greatest area she can have for her garden? |
2008-05-12 |
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From angie:
Mary has 12 wood boards, each board is 1 yard long. She wants her garden to be shaped like a rectangle. What is the greatest area she can have for her garden?
Answered by Penny Nom. |
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How many games? |
2008-05-12 |
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From Amy:
Central Middle School is hosting a city-wide ping pong tournament.
Twenty students signed up for the tournament. Each player plays another; the winner
goes on to the next round. Elimination games continue until there is one grand winner.
How many games must be played to find the grand winner?
Answered by Penny Nom. |
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The length of an arc |
2008-05-12 |
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From patricia:
Find the length of the arc on a circle of radius r = 16 inches intercepted by a central angle [theta] = 60 degrees
Answered by Penny Nom. |
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A 10 acre square |
2008-05-12 |
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From RICHARD:
I AM GETTING A 10 ACRE TRACT OF LAND OUT OF A 50 ACRE TRACT. ITS GOING TO BE PERFECTLY SQUARE.I NEED TO KNOW WHAT EACH PROPERTY LINE LENGTH WILL BE?ON ALL FOUR SIDES.AND THE TOTAL SQUARE FEET WILL BE IN THIS 10 ACRE TRACT?
Answered by Penny Nom. |
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Working together |
2008-05-12 |
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From frustrated:
Working alone, Colleen can paint a house in 2 hours less than James. working together, they can paint the house in 10 hours. How long would it take James to paint the house by himself?
Collen: 1/x-2 times 10
James: 1/x times 10
10/x-2 + 10/x = 1
10x + 10x -20 = x(x-2)
0= x^2 -22x + 20 They have the answer as 21 hours. From my previous work as you see, how are they getting 21 hours?
Answered by Penny Nom. |
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The weight of a concrete column |
2008-05-11 |
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From russell:
a cylindrical form is filled with a slow curing concrete. The base of the form
is 10 ft in radius, and height is 25 ft. while the concrete hardens, gravity
causes the density to vary from a density of 90 lbs/ft^3 at the bottom to a
density of 50 lb/ft^3 at the top. Assume that the density varies linearly
from the top to the bottom, and compute the total weight of the resulting
concrete column
Answered by Harley Weston. |
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How old are the sisters? |
2008-05-11 |
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From George:
Theresa is four years older than her younger sister Joni. Twelve years ago, she was twice as old as her sister.
Find the present age of the two siblings.
Answered by Penny Nom. |
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Selling price |
2008-05-10 |
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From Roxane:
I'm trying to figure out the formula for the following, I have a product that
I want to receive a certain profit margin, but with this product I also have
to pay a percentage of commission to someone. I need to know how to
calculate my new selling price taking into account the markup percentage, but
I don't want my gross margin to be lowered. I have calculated the markup
percentage to get my new selling price with the commission, but it lowers
my profit margin once I pay the commission and I don't want it to do that.
Answered by Penny Nom. |
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The area of a regular hexagonal pyramid |
2008-05-10 |
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From Kim:
i need help finding the area of a regular hexagonal pyramid.
Answered by Penny Nom. |
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The area of a sector of a circle |
2008-05-10 |
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From lupio:
a problem asks for the area of a sector in a circle,no central angle,in circle is given only 5cm radius, three answers 180-90-35
can't find a way to start.Help
Answered by Harley Weston. |
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A crate is launched from an airplane |
2008-05-10 |
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From Michelle:
A crate is launched from an airplane, 75 feet above the ocean, with an initial vertical velocity of 60 feet per second. How many seconds will it take for the crate to hit the water? Round to the nearest hundredth.
Answered by Harley Weston. |
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Options 1 2 4 8 16 32 64 128 etc. |
2008-05-09 |
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From Abraham:
I have seen programs with options and I wish to create a similar program.
I have options 1 2 4 8 16 32 64 128 etc.
If I receive option 3 means option 1 and 2 are included. Option 20 means option 16 and 4 are included.
that because of the sum of those numbers is the olny way to get the given number.
I want to know if is there a way
to know which number from options are included.
How I know:
1 is Included
2 is Included
4 is Included
Answered by Stephen La Rocque. |
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