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A circle inscribed in a square acre |
2008-06-19 |
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Scott pose la question :
Q'm trying to find out the sq footage of the corners of an acre. If an acre is 43,560 sq and if I have this right the surface area of the circumference is 1040 ft. what is the combined square footage of the 4 corners? Or the percentage the original acre?
Harley Weston lui répond. |
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9(d+5)=3(d-3)+6d |
2008-06-19 |
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davontay pose la question :
9(d+5)=3(d-3)+6d
Harley Weston lui répond. |
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A six pointed star |
2008-06-19 |
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Bree pose la question :
Triangles ABC and DEF are equilateral triangles with the same side length of 12cm. The polygon at the centre of the star is a regular hexagon. What is the area of the hexagon? Justify your response.
The triangles are in a shape of a six pointed star with the hexagon in the middle.
Penny Nom lui répond. |
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How far from each other will they be? |
2008-06-18 |
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kerstin pose la question :
a women jogging at 6 mi/h passes a men biking in the opposite direction at 12 mi/h. if the maintain their speeds, how far from each other will they be 10 minutes after passing?
Stephen La Rocque lui répond. |
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A jar of pennies |
2008-06-18 |
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Ryan pose la question :
if you are given a jar of pennies and you had to find the weight of one penny
without opening the jar.when you graph it, You have to y= the mass of the container and x= number of coins
you use the slope to find the weight of the penny how would u go about doing that?
Stephen La Rocque lui répond. |
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Interest compounded daily for 6 months |
2008-06-18 |
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Cheryl pose la question :
Compounded interest daily on cd.....$1,000.00 at 2.53% for 6 months. How much will this CD earn?
Penny Nom lui répond. |
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A 15% discount |
2008-06-18 |
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karonn pose la question :
Muthu bought the following items from a furniture shop which offers trade discounts of 15% on its furniture.
| Item |
list price |
| office chair |
RM 250 |
| office table |
RM 1400 |
| book shelf |
RM 3500 |
(a) find the net price of each item.
(b) find the total payment if Muthu bought 3 office chairs, 2 office tables and a book shelf.
Penny Nom lui répond. |
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Concrete blocks |
2008-06-18 |
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marvin pose la question :
How many cement blocks do i need to build a 8 ft. tall wall x 1,300 ft. long?
Harley Weston lui répond. |
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A line which is perpendicular to another line |
2008-06-18 |
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Emily pose la question :
How do you solve perpendicular bisectors with a slope and a point?
Penny Nom lui répond. |
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How do you change bases? |
2008-06-17 |
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Peter pose la question :
How do you change bases eg. 121 from base 3 to base 5?
Penny Nom lui répond. |
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What is a 1% slope? |
2008-06-17 |
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randy pose la question :
trying to figure out percentage of slope lets say i have to run a pipe 80' at a 1%slope how much pitch is that?
Harley Weston lui répond. |
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A piecewise equation |
2008-06-16 |
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John pose la question :
AT&T charges $39.99 for 450 minutes per month. It charges 45 cents per minute over the 450 minutes.
How can I make a piecewise equation of this problem?
Penny Nom lui répond. |
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A space camera circles the Earth |
2008-06-16 |
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Rita pose la question :
A space camera circles the Earth at a height of h miles above the surface. Suppose that d distance, IN MILES, on the surface of the Earth can be seen from the camera.
(a) Find an equation that relates the central angle theta to the height h.
(b) Find an equation that relates the observable distance d and theta.
(c) Find an equation that relates d and h.
(d) If d is to be 3500 miles, how high must the camera orbit above Earth?
(e) If the camera orbits at a height of 400 miles, what distance d on the surface can be seen?
Penny Nom lui répond. |
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Cows and chickens |
2008-06-16 |
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damebochie pose la question :
I got this problem and want to write a system of equation for it:
Farmer Joe has cows and chickens on his farm. One day he count 76 legs and 24 heads. How many cows and how many chickens are on the farm? write a system of equations and solve.
I don't have any problem to solve it, but I just can;t see how I am going to write this system of equation.
Thank you so much for helping?
Harley Weston lui répond. |
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The diameter of a sphere |
2008-06-15 |
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Scott pose la question :
The volume of a sphere is 6000cm cubed. What is the diameter of the sphere?
Penny Nom lui répond. |
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