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Rondo the snail |
2011-01-05 |
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Kristen pose la question :
He trained his snail, Rondo, to crawl around a 6 x 8 rectangle. Rondo stayed exactly 3 cm from teh rectangle at all times. What is the total area that Rondo surrounded with his slime trail?
Penny Nom lui répond. |
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A golf holiday |
2011-01-04 |
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Andy pose la question :
You kindly responded to a question I previously sent with regard to a Golf Holiday and I wonder if I might ask another question please. There are now 7 players playing 5 rounds of golf and I wonder if it is possible to devise a schedule where everyone plays with each other a minimum of two times i.e. they will play twice with some and three times with others. As always, many thanks for your kind assistance.
Victoria West lui répond. |
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Line segments |
2011-01-04 |
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Izsak pose la question :
What is the formula to find the number of segments that can be named by a given number of points on a line?
Penny Nom lui répond. |
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If ac = bc ... |
2011-01-04 |
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jamielle pose la question :
if ac=bc, then a is not equal to b, c is not equal to zero
Penny Nom lui répond. |
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The intercept form |
2011-01-04 |
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sussie pose la question :
How do you find the intercept form of y=X^2-2x-3?
Penny Nom lui répond. |
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A tangent line |
2011-01-03 |
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Amanda pose la question :
Question from Amanda, a student:
an equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is
(A) y=-6x-6
(B) y= -3x+1
(C) y= 2x+10
(D) y=3x-1
(E) y=4x+1
Penny Nom lui répond. |
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Exponential form |
2011-01-02 |
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jumana pose la question :
find any five examples of exponential form from real life situation
Penny Nom lui répond. |
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A circle inside a square |
2010-12-31 |
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Jenn pose la question :
A circle of a diameter of 2 is drawn inside a square of 4. The circle's center is at the center of the square. To the nearest tenth, what is the perimeter of the area of the square, not including the circle inside.
Penny Nom lui répond. |
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A truncated cone |
2010-12-31 |
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jagjeet pose la question :
dear suppose i have cone of 50cm radius at base and 100cm radius at top at a height of 80cm. now keeping base radius of 50cm and height of 80cm i want to increase top radius to 150cm how will i do that. plz height m talking abt is vertical height not slant height
Penny Nom lui répond. |
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The third side of a triangle |
2010-12-28 |
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andrea pose la question :
in triangle abc, a-b=5 and the area is 50cm2.If angle c- 90degrees, find the length
of c.
Penny Nom lui répond. |
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A polynomial remainder |
2010-12-25 |
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Asterdine pose la question :
When a polynomial f(x) is divided by x+1 and x+2, the remainders are 3 and 7 respectively. Find the remainder when f(x) is divided by (x+2)(x+1).
Penny Nom lui répond. |
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Economic data |
2010-12-24 |
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Le pose la question :
I'm student in economics. I have to read some research of test of financial model (test of Black, 1972, Fama et McBeth, 1973, Fama et French, 1993, about the CAPM or APT model). And I really want to redo these tests with the same data to understand them better. But I don't know where and how I can have these data. I hope to have some recommendations from you.
Thank you,
Le Thi Bich Hanh
Robert Dawson lui répond. |
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The thermal expansion of steel |
2010-12-20 |
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roger pose la question :
Knowing that the coefficient of thermal expansion of steel is 6.5E-06
in/in/deg F. How do you calculate the loads applied as a result of the expansion?
Robert Dawson lui répond. |
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An air duct in the form of a circular cylinder |
2010-12-19 |
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ed pose la question :
an air duct in the form of a circular cylinder has a cross section if diameter 16 in. the distance between the bases is 20 ft and the elements are inclined at an angle of 50 degrees to the bases. find the amount of magnesia required to protect the duct with magnesia covering 1/2 in thick? tnx
Stephen La Rocque lui répond. |
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Profit as a percent |
2010-12-19 |
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gaurav pose la question :
In the following, which calculation is right to calculate the profit percent.
if profit is 20%- 100*1.2 = 120
if profit is 20%- 100/0.8 = 125?
Penny Nom lui répond. |
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