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Angle of incline |
2010-01-20 |
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From Alan:
how do I fnd the angle of an incline with a measurement of 0.042 with an adjacent of 1.2mtrs?. Thank You
Answered by Penny Nom. |
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Loading a headboard in a uhaul |
2010-01-20 |
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From gina:
I have a uhaul 9'10" long 4"9"wide 4'7"height I have a headboard 74 inches in height would it fit the box diagonally
Answered by Penny Nom. |
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The average over two semesters |
2010-01-20 |
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From edy:
6 courses have an average of 100 in the first semester
5courses have an average of 90 in the second semester
what is the average of the two semester , method of calculation , how come to have 95.4545
Answered by Penny Nom. |
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Area in square meters |
2010-01-20 |
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From Carla:
A football field is 120 yd long and 50 yd wide. What is the area of the football field, in square meters?
Answered by Penny Nom. |
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How long will it take to go 1 mile at 80 mph? |
2010-01-19 |
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From Susann:
How long will it take to go 1 mile at 80 mph?
Answered by Penny Nom. |
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divide the product of 'x' and '3y' by '2z' |
2010-01-19 |
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From shradheya:
write all fall using variable ,number, and basic operation
1. divide the product of 'x' and '3y' by '2z'.
Answered by Penny Nom. |
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The length of a sidewalk |
2010-01-19 |
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From Les:
I have a sidewalk 4"thick,4ft. wide,and I have 2cubic yards of concrete. What is the length of my sidewalk?
Answered by Penny Nom. |
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How high up the building does the ladder reach? |
2010-01-19 |
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From rosenda:
A 10 meter ladder is 6 meter from the base of a building. How high up the building does the ladder reach?
Answered by Robert Dawson. |
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The square root of a large number |
2010-01-19 |
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From darlene:
I understand the simple process, like 12 is the root to 144 but what happens when the number is 42563. Without a calculator how does a person figure this out during a timed test?
Answered by Robert Dawson. |
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Expressing the natural numbers in terms of 4 fours. |
2010-01-19 |
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From Steve:
When I was studying mathematics, there were several of us that tried to express the natural numbers in terms of 4 fours. Allowing the use of any known math operation, for example n to the zeroth power is 1.Is there more info on this exercise. This was done mentally, nothing written down.
Answered by Robert Dawson. |
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A cone circumscribed about a given hemisphere |
2010-01-19 |
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From Neven:
The cone of smallest possible volume is circumscribed about a given hemisphere. What is the ratio of its height to the diameter of its base?
(G.F.Simmons, Calculus with Analytic Geometry, CH4 Applications of Derivatives)
Answered by Chris Fisher. |
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Setting up an algebraic equation |
2010-01-18 |
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From jerry:
the 1st of 4 books has twice as many pages as the 3rd. The 2nd book has 30 pages less than the 1st. The 4th has 42 pages more than the 1st and 2nd books combined. there are 567 pages in total. How many pages are in each book.
Answered by Penny Nom. |
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How far apart are the two girls? |
2010-01-18 |
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From benny:
Debby and john are looking up at their house from the backyard. From Debby's
point of view, the top of the house is at an angle of elevation of 40 degrees
From Johns point of view, directly closer to the house, it is 60 degrees. The
house is 15m high. How far apart are the two girls?
Answered by Robert Dawson. |
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Deux nombres consécutifs |
2010-01-18 |
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From Janot:
Bonjour
comment peut on faire pour démontrer
que si deux nombres sont consécutifs, leur produit et leur somme sont
premiers entre eux
Merci de me mettre sur la voie , j'ai échoué avec Bezout.
Answered by Claude Tardif. |
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Volume d'une sphere entre 4 autres spheres |
2010-01-18 |
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From Bonfils:
Bonjour,
Je souhaiterais en fait calculer le rayon de la sphère max qui pourrait s'insérer entre 4 sphères de rayon connu.
Merci par avance pour votre réponse.
Sincères salutations
Answered by Chris Fisher. |
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