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A cake must be divided evenly |
2009-01-20 |
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kelen pose la question :
a 10 inch by 10 inch square cake must be divided evenly among 5 people. the top
and all four sides of the cake are frosted. each person must receive the same
amount of cake and the same amount of frosting. there must be no cake left over.
how can this be done?
Robert Dawson lui répond. |
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Square footage |
2009-01-20 |
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david pose la question :
15 3 5/8 x 18 7"
Penny Nom lui répond. |
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The Golden Ratio |
2009-01-20 |
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Vincent pose la question :
hello, my name is Vince,
I am wondering how the Golden ratio was used by early mathematicians.
What formula did they use to find it? open for anything... thank You!
Robert Dawson lui répond. |
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A triangle with sides of length 6 and 7 |
2009-01-20 |
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bill pose la question :
If I have a triangle with sides 6 and 7,
which of the following is a possible area?
The answers are 13 and 21, but not 24.
I know this is because of a possible range of heights,
but how do I calculate the range of heights?
This is an SAT question. Thanks
Chris Fisher lui répond. |
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The number of gallons in a tank |
2009-01-19 |
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Jim pose la question :
Hi, i need to know how many gallons of water can fit into our tank, and how to do the calculations my self. The tank is 72" round by 72" long, i would like some help. Thanks Jim.
Harley Weston lui répond. |
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The area of an isosceles triangle |
2009-01-19 |
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faris pose la question :
how to calculate area of isosceles triangle with two angles of 45 degree and base of 6
Penny Nom lui répond. |
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Percentage increase |
2009-01-19 |
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Destiny pose la question :
In 1990 there were 25 springs in the park. This year there are 35 springs
in the park. What is the percent increase?
Penny lui répond. |
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The volume of a prism |
2009-01-19 |
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Mady pose la question :
What is the general equation used to find the volume of a triangular prism?
Robert Dawson and Harley Weston lui répond. |
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The area of a quadrilateral shape |
2009-01-19 |
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craig pose la question :
how do u work out the area of a quadrilateral shape
Robert Dawson lui répond. |
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Two chords in a circle |
2009-01-19 |
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azlaan pose la question :
prove that line joining the midpoint of 2 equal chords substain equal angle with the chord?
Robert Dawson lui répond. |
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The ratio of the measures of the three angles of a triangle |
2009-01-18 |
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mary pose la question :
The ratio of the measures of the three angles of a triangle is 2:5:8. What is the measure of each angle of the triangle?
Robert Dawson and Harley Weston lui répond. |
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20 miles of gasoline |
2009-01-18 |
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Roger pose la question :
I used the volume formula and found that a cylinder with a 3" radius X 8.75" height yields just over 231 cu. in. (one gallon)- doesn't seem right, but that's what I got. Then found the percent that 8.175" is to one foot and multiplied that into the number of feet in 20 miles. I'm not good at math, so I'm starting to lose myself here. The short story is I get a cylinder that is 20 miles long and only .0000387" in diameter. Is this even close to the mark?
Harley Weston lui répond. |
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A trig problem |
2009-01-18 |
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Conor pose la question :
sinx= 6/10 ; Find the exact value of cos(squared) x / 1-tanx
Harley Weston lui répond. |
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The point of intersection of the straight lines |
2009-01-18 |
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Kieran pose la question :
Find the point of intersection of the straight lines
y=2x+4, and y+2x-16=0
Robert Dawson and Penny Nom lui répond. |
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The dimensions of a pool |
2009-01-18 |
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denise pose la question :
a rectangular swimming pool is three times as long as it is wide. if the perimeter of the pool is 320 feet, what are its dimensions
Penny Nom lui répond. |
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