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4 odd numbers that equal 21 |
2007-10-15 |
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gary pose la question :
4 odd numbers that equal 21
Penny Nom lui répond. |
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Four triangles in a square |
2007-10-15 |
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Kristina pose la question :
A square with side lengths of 6 cm is divided into 3 right triangles and a larger isosceles triangle. If the three right triangles have equal area, find the exact area of the isosceles triangle.
Stephen La Rocque lui répond. |
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lim (1- 2 cosx) / (sin(x- pi/3)) |
2007-10-15 |
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hanan pose la question :
lim (1- 2 cosx) / (sin(x- л/3))
Harley Weston lui répond. |
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What is the total population? |
2007-10-15 |
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Tomco pose la question :
7/10 of the population believed 175,104,000 to be true - what is the total population.
We keep coming up with about 227,000,000 by just adding 30% to 175. Why doesn't that
work?
We have since figured out the answer to be 250...but why?
Steve La Rocque and Harley Weston lui répond. |
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20 tubes of concrete |
2007-10-14 |
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Fred pose la question :
I have 20 8” concrete tubes to fill with 8'of concrete.
How much concrete will I need to order
Stephen La Rocque lui répond. |
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The dimensions of a rectangle |
2007-10-14 |
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Elizabeth pose la question :
The perimeter of a rectangle is 20m. The area is 20sqm. Calculate the dimensions of the rectangle. Give your answers correct to two decimal places.
Penny Nom lui répond. |
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Nickels, dimes and pennies |
2007-10-14 |
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tom pose la question :
you have $1.00 and 1/5 of it is dimes, 2/15 is nickels, and 2/3 is pennies. How many coins of each are there. how do i set it up to solve this problem. thanks, tom
Penny Nom lui répond. |
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How much can Daisy spend? |
2007-10-14 |
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Math pose la question :
Daisy has $25.00 to spend on dinner. Her sister tells her to leave 18% of the bill as a tip and
the sales tax is 8% of the bill. What is the maximum amount she can spend on dinner in order to cover
the meal, sales tax, and the tip?
Penny Nom lui répond. |
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Working with x |
2007-10-12 |
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Robert pose la question :
The question: The measure of an exterior angle of a regular polygon is given. Find the measure of an interior angle, and find the sides.
41. 36
42. 18
44. 'X'
The attachment has what she has done for 41 and 42. Need help with 44 (lots of help) Thank you in advance for your site and your help. Robert
Penny Nom lui répond. |
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15 divided by 5a |
2007-10-12 |
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Susan pose la question :
Is "5a" considered an expression to be solved first, or do you simply go in PEMDAS order with the 15 divided by 5 in the following problem: Evaluate when a = 2 15 divided by 5a
Penny Nom lui répond. |
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How much water is in a hose? |
2007-10-12 |
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Bryan pose la question :
I need to know how much water (gal) is in a hose thats 100' long by 5" in dia.
Thanks
Stephen La Rocque lui répond. |
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Domain and range |
2007-10-12 |
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Dawn pose la question :
Hi, I've been out of school for 8 years and recently picked up a math correspondence course. I'm having trouble trying to figure out the range and domain of a linear function. I've read everything I can find in my text, lessons and on your site and I still can't figure out what I'm suppose to be doing. The function is y=2x+1. Please help.
Penny Nom lui répond. |
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13 year and 17 year locusts |
2007-10-12 |
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stefan pose la question :
how many years pass between the years when both 13 year and 17 year locusts are out at the same time?
Penny Nom lui répond. |
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The diameter of an octagon |
2007-10-12 |
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Lewis pose la question :
How do I calculate the dimension of the diameter of an Octagon when each leg has a dimension of 60 feet?
Penny Nom lui répond. |
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A trig limit |
2007-10-12 |
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Amanda pose la question :
What is the limit, as x tends to zero, of: (1-cos(4x))/(xsin(x))?
Thank you!
~Amanda
Harley Weston lui répond. |
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