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Exterior square footage of a dome |
2008-08-19 |
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From Richard:
I have to gold leaf a dome with a circumference of 29'. What would the exterior square footage be?
Answered by Penny Nom. |
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Angular & Linear Speed from a Sine Graph |
2008-08-19 |
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From Kim:
Kim, a student:
I am given a graph with a wave. The amplitude is 5cm and the period is 4cm. I am suppose to find the angular speed. What I need to know is the formula for angular speed and how do I use these numbers to get the correct answer.
Answered by Janice Cotcher. |
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Factoring x^2 + 729 |
2008-08-19 |
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From peter:
hello I,am having trouble factorising a polynomial into polynomial factors
with real coefficients please can you help the polynomial is x^2+729
Answered by Harley Weston. |
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The intersection of the medians |
2008-08-18 |
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From Katie:
Q: A Triangle is positioned with one side on the x-axis, the coordinates
for the triangle are (-a,0), (a,0), (b,c)
a) Find the coordinates of the point of intersection of the perpendicular
bisectors of the sides
b) Find the coordinates of the point of intersection of the medians
c) Find the coordinates of the point of intersection of the altitudes
Answered by Penny Nom. |
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Subdividing a chord |
2008-08-18 |
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From austin:
Here is my question. Imagine I have a circle of known radius 25 feet, and a
chord with a mid point height of 6 inches from a central point on the chord
to the circumference of the circle. I wish to divide this chord into a
number of equal divisions. How can I calculate the measurement of the
perpendicular line at each division of the chord to the circumference and at
a 90 degrees at each division
Answered by Penny Nom. |
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A 3% increase |
2008-08-18 |
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From RENEE:
I need to know how to do a 3 percent increase for $118,200......x's it by 3% will not work please answer fast
Answered by Penny Nom. |
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A string around the world |
2008-08-18 |
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From Terry:
I heard this on T.V. and was wondering if it was true. Place a string around
the world, you would need 25,000 miles of string. If you raised the string
off of the ground by 1 foot all the way around. How much more string
would you need?
Answered by Penny Nom. |
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Joining vertices in a polygon |
2008-08-18 |
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From Megan:
I'm trying to develop a relationship between the number of points of a regular polygon and the
(a) number of lines you could draw between those points,
(b) number of triangles you could draw,
(c) number of quadrilaterals,
etc.
Answered by Penny Nom. |
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Metres and miles |
2008-08-18 |
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From Bill:
I enter a race that is 10,000 meters long,how many miles do i have to run?
Answered by Victoria West. |
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Solving for Shared Height of Two Right Triangles |
2008-08-17 |
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From Heidi:
find the height of a triangle, which can be split into two right triangles, but the base (50m) is not split equally in half. one end of the base is 40 degrees, while the other is 30 degrees.
Answered by Janice Cotcher. |
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TRIG IDENTITIES |
2008-08-17 |
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From VINCE:
HOW DO YOU SIMPLIFY THE FOLLOWING:-
2sin3(theta)cos3(theta)?
Regards
Answered by Harley Weston. |
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y^2+3yz-8z-4z=0 |
2008-08-17 |
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From Rae:
y^2+3yz-8z-4z=0
Answered by Penny Nom. |
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Similar Triangles Given a Median |
2008-08-17 |
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From RAM:
Sides AB , AC and median AD of a triangle ABC are respectively proportional to
PQ PR and median PM of another triangle PQR. Show that ABC is similar to PQR
Answered by Janice Cotcher. |
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A triangular field |
2008-08-15 |
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From joneka:
Barb walked five times aroun a triangle field all together she walked 435 feet the first side of the triangle fiel is 23 feet the length of the other two sides are of the same measure. What are the dimensions of the triangle field?
Answered by Penny Nom. |
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Converting to cubic yards |
2008-08-15 |
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From Lisa:
I need to convert 32,000 square feet, 5 inches deep to cubic yards. Can you help me?
Thank you
Answered by Harley Weston. |
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