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Splitting the mortgage payment |
2010-04-09 |
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Jodi pose la question :
What percentage of $2,500.00 (monthly mortgage payment)would I pay per month - if I make $2,200.00 per month and my partner makes $6000.00 per month?
Thank you.
Tyler Wood lui répond. |
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If a third is a fourth of a number, what is the number? |
2010-04-08 |
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larry pose la question :
If a third is a fourth of a number, what is the number?
Penny Nom lui répond. |
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Backfilling the area around the outside of a pool |
2010-04-07 |
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Craig pose la question :
I need to get dirt to fill an area 25ft x 25ft (think of a giant sandbox) HOWEVER, there is a pool 18 ft round in the middle of it. We need to backfill the area around the outside of the pool 6" deep. How much dirt will I need?
Penny Nom lui répond. |
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The area of a field of view |
2010-04-07 |
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Frank pose la question :
I know we have a field of view of 90 degrees and the distance we can cover is 6 miles. What is the area we can cover/view?
A formula would be nice to have since the diameter or distance of the wedge area can change and the degree of the field of view can also change.
Thank you and I look forward to hearing from you.
Frank
Penny Nom lui répond. |
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A model for the population of a Canadian city |
2010-04-07 |
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jess pose la question :
Let t^2 represent t-squared. The population of a Canadian City is modelled by: f(t) = 12t^2 + 800t + 40,000, where t is the time in years. When t= 0, the year is 2007.
a) According to the model, what will the population be in 2010?
B) In what year is the population predicted to be 300,000?
Penny Nom lui répond. |
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Does 1= 0.9999....? |
2010-04-07 |
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Asia pose la question :
Does 1= 0.9999....? There seems to be different opinions on this.
Robert Dawson lui répond. |
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An isosceles trapezoid is inscribed in a circle |
2010-04-06 |
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Abby pose la question :
An isosceles trapezoid whose bases have lengths 12 and 16 is inscribed in a circle of radius 10. The center of the circle lies in the interior of the trapezoid. Find the area of the trapezoid
Penny Nom lui répond. |
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Related rates and a rectangular sponge |
2010-04-06 |
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Heather pose la question :
A rectangular sponge is increasing its length at 4cm/min, decreasing its width at 2cm/min, and increasing its height at 3cm/min. When its length, width and height are 40, 30, and 20 respectively, find the rate of change of volume and surface area.
Penny Nom lui répond. |
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A max min problem |
2010-04-06 |
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Terry pose la question :
The vertex of a right circular cone and the circular edge of its base lie on the surface of a sphere with a radius of 2m. Find the dimensions of the cone of maximum volume that can be inscribed in the sphere.
Harley Weston lui répond. |
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The derivative of cos^3x |
2010-04-06 |
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Erson pose la question :
Find y' of the given function: y = cos^3x.
Harley Weston lui répond. |
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Body measurements |
2010-04-06 |
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Amirul pose la question :
Recently I'm proposing my research question to my teacher for my extended essay. I'm an IB student.
My research question is regarding the estimation of human in buying trousers through reference of neck. What does the relation between the diameter of the neck and the diameter of the waist?
I want to see how far does the estimation theory is true for different type of people with different BMI(body mass index)..
But teacher said that it is golden ratio...so nothing interesting... =(
really??? But i search on net.... state that my idea seems do not have any relation with the golden ratio so far..... i just want ask you... am I able to perform in my extended essay if i continue with this research question??
Robert Dawson lui répond. |
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Fitting a sofa through a doorway |
2010-04-06 |
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Yvonne pose la question :
Hi, I would be most grateful if you could help me, because I have no idea how to work this out! I am moving from a house to a flat, and the doors in the flat are 70 cm wide. I have a sofa 88 x 88 x 215. Will it go through the door if we tip it sideways at an angle?
Thanks, Yvonne Beck
Robert Dawson lui répond. |
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The volume of a berm |
2010-04-05 |
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jim pose la question :
a berm 6 ft wide x 112 ft long 18 inches high at center x 18 inches down to 0 front and back as a taper...how much soil do I need?
Penny Nom lui répond. |
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A regular hexagon and an equilateral triangle in a circle |
2010-04-05 |
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Beth pose la question :
A regular hexagon and an equilateral triangle are both inscribed in the same circle so that the hexagon and the triangle share three vertices. The radius of the circle is 10cm. What is the difference between the area of the hexagon and the area of the triangle?
Chris Fisher lui répond. |
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A roll of polythene |
2010-04-04 |
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Mary pose la question :
I have an area of 54square metres to cover how many rolls of 2m x 50m polythene do I need
Penny Nom lui répond. |
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