|
|
|
|
|
|
|
|
Exterior square footage of a dome |
2008-08-19 |
|
Richard pose la question : I have to gold leaf a dome with a circumference of 29'. What would the exterior square footage be? Penny Nom lui répond. |
|
|
|
|
|
Angular & Linear Speed from a Sine Graph |
2008-08-19 |
|
Kim pose la question : 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. Janice Cotcher lui répond. |
|
|
|
|
|
Factoring x^2 + 729 |
2008-08-19 |
|
peter pose la question : hello I,am having trouble factorising a polynomial into polynomial factors
with real coefficients please can you help the polynomial is x^2+729 Harley Weston lui répond. |
|
|
|
|
|
The intersection of the medians |
2008-08-18 |
|
Katie pose la question : 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 Penny Nom lui répond. |
|
|
|
|
|
Subdividing a chord |
2008-08-18 |
|
austin pose la question : 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 Penny Nom lui répond. |
|
|
|
|
|
A 3% increase |
2008-08-18 |
|
RENEE pose la question : 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 Penny Nom lui répond. |
|
|
|
|
|
A string around the world |
2008-08-18 |
|
Terry pose la question : 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? Penny Nom lui répond. |
|
|
|
|
|
Joining vertices in a polygon |
2008-08-18 |
|
Megan pose la question : 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. Penny Nom lui répond. |
|
|
|
|
|
Metres and miles |
2008-08-18 |
|
Bill pose la question : I enter a race that is 10,000 meters long,how many miles do i have to run? Victoria West lui répond. |
|
|
|
|
|
Solving for Shared Height of Two Right Triangles |
2008-08-17 |
|
Heidi pose la question : 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. Janice Cotcher lui répond. |
|
|
|
|
|
TRIG IDENTITIES |
2008-08-17 |
|
VINCE pose la question : HOW DO YOU SIMPLIFY THE FOLLOWING:-
2sin3(theta)cos3(theta)?
Regards Harley Weston lui répond. |
|
|
|
|
|
y^2+3yz-8z-4z=0 |
2008-08-17 |
|
Rae pose la question : y^2+3yz-8z-4z=0 Penny Nom lui répond. |
|
|
|
|
|
Similar Triangles Given a Median |
2008-08-17 |
|
RAM pose la question : 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 Janice Cotcher lui répond. |
|
|
|
|
|
A triangular field |
2008-08-15 |
|
joneka pose la question : 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? Penny Nom lui répond. |
|
|
|
|
|
Converting to cubic yards |
2008-08-15 |
|
Lisa pose la question : I need to convert 32,000 square feet, 5 inches deep to cubic yards. Can you help me?
Thank you Harley Weston lui répond. |
|
|