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The height of a triangle |
2010-08-05 |
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From Ann:
The height of a triangle is 4cm less than the base. The area is 198cm^2. Find the height.
Answered by Stephen La Rocque. |
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Two overlapping circles |
2010-08-04 |
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From Husen:
two circles of radius 5 cm intersect each other .the distance between their centers is 5root 2.find the area of the portion common to the two circles
Answered by Penny Nom. |
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A square field has an area of 289 meter squared |
2010-08-02 |
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From daniel:
a square field has an area of 289 meter squared. How do you calculate the dimensions
Answered by Stephen La Rocque and Penny Nom. |
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A rational equation |
2010-08-02 |
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From Bailey:
3/x
+
x/x+2
______
-2/x+2
Answered by Penny Nom. |
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A shrunken car |
2010-07-31 |
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From Diana:
Car manufacturers have outdone themselves. They have discovered how to shrink a car to make parking easier. At the touch of a button, a car shrinks by 2 feet in the width and 4 feet in the length. The original car base is 24 square feet longer than that of the shrunken car. If the original cars length is twice the width, find the dimensions of both cars. Identify the unknowns carefully.
Answered by Penny Nom. |
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A fruit seller |
2010-07-31 |
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From Nazrul:
5% of total number of fruits of a fruit seller has been rotten and also 5% of them has been damaged during transportation. What is the percentage profit by which he sells the rest so that he profit 20% as a whole?
Answered by Penny Nom. |
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70 cubic meters of mulch |
2010-07-30 |
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From zsuzsi:
i have 70 cubic meters of mulch to move and an 8 tonne truck to use
how much tonnage is to 1 square meter so that i can work out how many trips i need to make
Answered by Penny Nom. |
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The suspension cables of a bridge |
2010-07-29 |
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From Mike:
what is the formula for the suspension cables of a bridge.
The towers are 200 ft above the roadway
The towers are 3400 ft apart
The cable if at 8ft in the middle of the span
Answered by Robert Dawson. |
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The volume of earth to be moved |
2010-07-29 |
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From Michael:
Volume of earth moved @ 500' across, 1 to 3 degree slope, 30' deep X 50' across at the bottom.
Answered by Stephen La Rocque and Harley Weston. |
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The shadow of a building |
2010-07-28 |
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From vera:
building casts a shadow 210 ft. long,40 degree angle.How tall is the building?
Answered by Penny Nom. |
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The area of a hexagon |
2010-07-28 |
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From Katie:
Hi i have to find the area of a hexagon with only the side length 2cm given
would you be able t help?
Answered by Walter Whiteley. |
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How fast is the second car taveling? |
2010-07-26 |
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From Jeff:
A car is traveling 75 mph. It takes 12 miles to overtake a second car that was .5 mile ahead. How fast is the second car taveling?
Answered by Stephen La Rocque. |
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A spaceship playhouse |
2010-07-26 |
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From Dave:
I would like to build a spaceship playhouse for my grandson I want it to
be about 36" around and I want to use 5/4 decking boards that measure
5 1/2" wide how do I figure out how to lay out a base pattern to nail to
(what angle do I need to cut and how many boards will it take to go around
the circle.
Answered by Penny Nom. |
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Difference quotient |
2010-07-26 |
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From Brandon:
i'm trying to figure out how to use the difference quotient with x^3, i have tried the following...(x+h)^2*(x+h)-(x+h)/h and i have only gotten as far as...(x^2+2xh+h^2)-(x+h)/h....i cannot see where i am goin astray, i know i am overlooking something simple, what am i overlooking?
Answered by Penny Nom. |
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Pi |
2010-07-26 |
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From Eden:
I think that "pi" is an important number in math. I have learned this number's
approximate value since childhood but I haven't known how can it be got and
who find that number . So please help!
Answered by Robert Dawson. |
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