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Pythagoras was right |
2007-04-11 |
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From Vineet:
in a right angle triangle, hypotenuse side is less than the sum of other two
sides, how the square of hypotenuse is equal to the sum of squares of other two sides?
Answered by Stephen La Rocque. |
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The volume of a cylinder |
2007-04-11 |
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From Gonzalez:
hi,
I have a problem, i need the formula to find the volume, area, surface area.
I have found that the are is pi X r^2, but i don't know how to find radius. if you
could help me, I'd be very happy.
Answered by Penny Nom. |
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What is the limit of 3.x^(3/x) as x approaches +infinity? |
2007-04-11 |
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From Teodora:
What is the limit of 3.x^3/x as x approaches +infinity ?
Answered by Haley Ess. |
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Can you have median < mode < mean? |
2007-04-11 |
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From Kaliela:
Can the Median > mode > mean?
Can the Mean > Mode > Median?
I don't think either of these can occur but I'm unsure why?
Answered by Penny Nom. |
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An irregular pentagon |
2007-04-11 |
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From reg:
Hi, i have been given an irregular pentagon in which i have to work out the area.
I have been told to make three triangles and then work out the area of these triangles and then add them up.
I require your help because i have the length of two sides of one of the triangle - how do i work out the other side?
I have not been provided with any angles - can i make the angles up?
Answered by Penny Nom. |
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Find the amount of carpet you need. |
2007-04-11 |
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From lakisha:
you want to buy carpet for a room that is 15 feet wide and 18 feet long. Find the amount of carpet you need.
What information do you need to know to solve this problem.
Answered by Penny Nom. |
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How many yards of gravel will I need and top soil will I need |
2007-04-11 |
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From Henry:
I am digging a number of trenches 12" wide by 29" deep by 167ft long.
In this trench there will be a 4.0 " tube I want to put 7" of top soil on top. So how many yards of gravel will I need and top soil will I need.
Thank you Henry
Answered by Stephen La Rocque. |
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I am filling a hole in the shape of a cube |
2007-04-11 |
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From Bethany:
If I am filling a hole in the shape of a cube with 64 cubic yards of dirt, how many feet deep will my hole be.
Answered by Stephen La Rocque. |
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A pentagonal pyramid |
2007-04-10 |
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From Alan:
Help me please, I'm pretty stumped here. I guess I'll start with the measurements I do have.
The pentagon base of the pyramid is inscribed in an eight inch circle, giving each side the
measurement of 4 & 5/8 inches.
I have two glass billets measuring 5"x10"x3/4"
If I did the math right I need the form to hold about 75 cubic inches.
What does the height of the pyramid need to be to hold the volume of the two billets? (note: the billets
will be broken into smaller pieces to actually fit into the form.)
Answered by Stephen La Rocque. |
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Who has the most pecans? |
2007-04-10 |
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From Oreste:
Julian gather 3/5 of a bag of pecans Nikki filled 5/7 and Brian 5/9 who filled the most pecans.
Answered by Stephen La Rocque. |
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What are the first 3 terms of this sequence |
2007-04-10 |
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From kyrie:
what are the first 3 terms of this sequence
n-2 divided by n squared
Answered by Stephen La Rocque. |
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Determine the probability that the triangle is acute. |
2007-04-10 |
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From Greg:
Points A1, A2, . . ., AN are equally spaced around the circumference of a
circle and N >=3. Three of these points are selected at random and a triangle
is formed using these points as its vertices. If N = 2k for some positive integer
k >= 2, determine the probability that the triangle is acute.
Answered by Penny Nom. |
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Almost surely |
2007-04-10 |
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From Ben:
what does "almost surely" mean in probability? what's the diff between absolutely certain and "almost surely"?
thx.
Answered by Penny Nom. |
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proposition d'une fonction |
2007-04-10 |
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From Benoit:
Proposez une fonction f(x,y) dont l'ensemble de niveau c=0 est
{(x,y) : x = 0} U {(x,y) : x*2+y*2=1}
Je remarque l'équation d'un cercle centré à (0,0) et de rayon 1
ainsi que la droite x=0 mais ça ne clique pas.
Merci de m'aider.
Answered by Claude Tardif. |
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I have an isosceles triangle. |
2007-04-10 |
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From Stephanie:
I have an isosceles triangle. The two equal sides are given to me, but not the
base. The equal sides are 12. I have to find the base of the triangle. Help!!
Answered by Stephen La Rocque. |
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