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An odd function |
2007-03-06 |
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From Dana:
If g(x) has a domain of all real numbers, name one point on a graph and explain why it must be there. g(x) is an odd function.
Answered by Penny Nom. |
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How much fill I would need |
2007-03-06 |
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From Tracey:
Oh am I confused! I need to know how much fill I would need to cover an area that is 28 feet in diameter by 8 inches deep. Thank you ...
Answered by Penny Nom. |
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How many gallons of water in a mcf (million cubic feet)? |
2007-03-06 |
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From Willene:
How many gallons of water in a mcf (million cubic feet)?
Answered by Penny Nom. |
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A goat problem |
2007-03-06 |
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From Tish:
This question has a, b, c parts.
1. A square barn measures 14 meters on each side.A goat is tethered outside by a rope that is attached to one corner of the barn:
a. Suppose that the length of the rope is 8 meters. On how many square meters of land is the goat able to graze? What shape is formed?
b. Suppose that the rope is made twice as long as in part a. On how many square meters of land is the goat now able to graze?
c. Lastly, an addition to the barn wabuilt making it rectangular with dimensions 14 meters by 20 meters and extended the ength of the rope to 24 meters, on how many square meters of land is the goat now able to graze? meters
Answered by Penny Nom. |
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Rolling two dice |
2007-03-06 |
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From Mary:
I have a test and I need to know how to figure out how to find the probability of rolling 2 dice and coming up with a 7 for both rolls. Could you please explain how to find the probability? Thank you. Mary
Answered by Penny Nom. |
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An irregular polygon |
2007-03-06 |
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From Dike:
How do i construct an irregular polygon
Answered by Penny Nom. |
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circles |
2007-03-06 |
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From chetna:
A large circle has a radius of 10cm.Given four congruent circles tangent to one another within the large circle what is the radius of the largest circle which will fit in the middle ?
Answered by Stephen La Rocque. |
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A metal shroud for a outdoor fireplace |
2007-03-06 |
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From Arnold:
I am making a metal shroud for a outdoor fireplace, it is basically a lampshade type pattern,like the bottom of a cone.The top has to be 6 inches to fit the 6 inch stovepipe,and the bottom will be a 24 inch circle. the sides will be 18 inches in length.With the cost of the sheet metal,I can only afford to cut this out once,can you help me with the pattern ?
Answered by Penny Nom. |
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What value of pi did the Indians use? |
2007-03-06 |
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From gigi:
What value of pi did the indians use?
Answered by Penny Nom and Sara Ulmer. |
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Prove that the triangle ABC is isosceles |
2007-03-05 |
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From Lisa:
I am stuck on this problem... If AB = CD (parellel line), and
Answered by Stephen La Rocque and Penny Nom. |
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One acre of water, one foot deep |
2007-03-05 |
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From Jeff:
If you have one square acre of ground flooded with one foot of water and a pump that pumps 1000 gallons a minute how long would it take to drain the one acre of ground?
Answered by Penny Nom. |
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A counterfeit coin |
2007-03-05 |
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From Delian:
Hi there, I have a counterfeit penny problem - however this one is slightly more challenging. I have twelve pennies, and one of them is counterfeit. The only difference between the counterfeit coin and the real ones is that the counterfeit is EITHER heavier or lighter than the others (We don't know which). I need to be able to solve this in only three weightings, and I REALLY NEED HELP!!!
Answered by Penny Nom. |
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The net for a pentagonal pyramid |
2007-03-05 |
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From MaKayla:
How many bases does the net for a pentagonal pyramid have?
Answered by Penny Nom. |
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The tens digit of a really large number |
2007-03-05 |
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From Sai:
How can i find the tens digit of a really large number? i was gven 63^15 + 15^63 in a competitive exam.
Answered by Penny Nom. |
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Area of a five-pointed star |
2007-03-05 |
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From Ashley:
What is the area of a five pointed star inscribed in a circle with a radius of 10cm?
Answered by Stephen La Rocque. |
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