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The length of the third side of a triangle |
2007-08-15 |
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From Brooklyn:
What is the equation to find the length of the third side of a triangle if you have the length of A, B, and the angles(s)?
Answered by Stephen La Rocque. |
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Circle Geometry |
2007-08-14 |
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From Robin:
In a triangle ABC, angle A=75 and B=60. A circle circumscribes the triangle. The tangents of the at points A and B meet in a point D outside the circle. Show that ABD is an isosceles triangle with a right angle at D. Diagram included.
Answered by Stephen La Rocque. |
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Cubic polynomials |
2007-08-14 |
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From Jalon:
The cubic function f(x) = (x+2)^3 touches the x axis only once at x = -2 (negative two). it could also be written as f(x) = (x+2)(x+2)(x+2)
Investigate the cubic functions below as well as the one above and comment clearlt and fully on where they touch/intersect the x axis, and how these points relate to the given function.
a) f(x) = (x – 3)(x +4)(x – 2)
b) f(x) = x(x + 1)^2 (^2 = that means it squared)
Your comments should reference graphs illustrating your conclusions and display another 2 trinomial graphs that demonstrate your conclusions. particular attention should be given to the number of times your function crosses or touches the X axis.
i dont know how this works but could you send the answer to..... spongy_91@hotmail.com
Answered by Stephen La Rocque. |
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A round reservoir |
2007-08-14 |
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From lee:
if you have a 46 acre round reservoir, how far around in feet would that be ??
Answered by Penny Nom. |
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A nonlinear system |
2007-08-14 |
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From Marsia:
Explain how the solution of a nonlinear system could be just a point, or two points. Sketching these may make it easier
Answered by Penny Nom. |
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Adding algebraic fractions |
2007-08-14 |
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From John:
Ive completely forgot anything to do with the subject mentioned, so my question is straight to the point..
I need to know how to do the following problem (Preferably do not give me an answer though)
(k/3k-8) - (4/k+2)
Answered by Penny Nom. |
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Explain how you can shift a parabola up two units |
2007-08-14 |
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From Marsia:
Explain how you can shift a parabola up two units (y axis).
Answered by Stephen La Rocque. |
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The tension in a single strand of wire |
2007-08-13 |
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From Gene:
Seeking an equation that calculates the tension in a single strand of wire or rope. Conditions: the wire is fixed at both ends, A known weight is suspended from the center of the span. The weight will dipslace the strand downward some distance Y. Let the distance between the fixed ends be X= 500mm. Weight W=0.5kg. Original tension in the strand is T= 10 newtons.Your help sincerely appreciated.
Answered by Gabriel Potter and Stephen La Rocque. |
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When is the best time in the day to teach math? |
2007-08-13 |
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From Sarah:
Do most teachers teach math in the morning or the afternoon? Is it true that kids learn and absorb more information in the morning? When is the best time in the day to teach math? Has there been any research on this? thank you!
Answered by Stephen La Rocque. |
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What are the two numbers? |
2007-08-13 |
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From Tiffany:
The sum of two number is 29.The difference is 1. What are the two numbers?
Answered by Stephen La Rocque, Melanie Tyrer and Penny Nom. |
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How many different orders are there? |
2007-08-13 |
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From Ethel:
This is a question from the PTSP Success Test. There are 4 horses at a stable. And how many different orders can they be ridden by their owners? The answer choices are A. 4 B. 10 C. 16 D. 24 and E. 36
Answered by Harley Weston. |
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Percentage change |
2007-08-13 |
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From Karen:
I need a formula for calculating percentages in Excel. For example, we =
sold 4 units of an item one month, and 105 units the next. I need a =
formula to calculate the percentage increase in sales units. Also, if =
5251 were sold one month and 651 the next, what is the formula for =
calculating the percentage difference? Please help, thank you.
Answered by Penny Nom. |
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10r^2 - 35r = 0 |
2007-08-13 |
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From Aranxa:
how do u solve this equation by factoring:
10r^2 - 35r = 0
Answered by Penny Nom. |
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Twenty dining tables |
2007-08-13 |
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From priya:
Utkarsh bought 20 dining tables for Rs 120000 and sold these at a profit equal to the S.P of 4 dining tables.Find the S.P of one dining table.(give the answer in statements)
Answered by Stephen La Rocque. |
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How many square meters are there? |
2007-08-13 |
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From jane:
if a room is 4meters by 5meters,how many square meters are there?
Answered by Penny Nom. |
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