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The distance between the sides of a parallelogram |
2008-03-30 |
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From jhon:
Calculate the perpendicular distance between AB and DC of a parallelogram. Note: AB and DC are the sides of the parallelogram.
Answered by Penny Nom. |
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The exponential form of x radical y to the third power |
2008-03-30 |
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From Jennifer:
what is the exponential for of x radical y to the third power
Answered by Penny Nom. |
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A normal distribution problem |
2008-03-29 |
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From Lorie:
3. The amount of annual snowfall in a certain mountain range is normally distributed with a mean of 109 inches, and a standard deviation of 10 inches.
a. What is the probability that the mean annual snowfall during 40 randomly picked years will exceed 111.8 inches?
Answered by Harley Weston. |
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A fish tank in the shape of an irregular pentagon |
2008-03-29 |
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From richie:
i am building a fish tank. it is going to be an irregular pentagon. the sides are going to be
24"
24"
8"
8"
32"(approximately)
there will 3 right angles A, B, E
my question is how to figure out the degree of the angles that are not right angles (C,D)?
Answered by Chris Fisher. |
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n.q == k mod (m) |
2008-03-29 |
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From Andrew:
If n.q == k mod (m) (where n, q, k, m, are integers & q is a prime)
Is it true that 'k' is always divisible by q?
Answered by Penny Nom. |
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The average rate of change |
2008-03-29 |
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From Tom:
For the function x/3x-1 find the average rate of change between the interval x=1 and x=5?
Answered by Harley Weston. |
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Qui sommes nous? |
2008-03-28 |
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From Cédrick:
Nous sommes deux nombres inférieurs à 40. Le nombre 11 est un de nos facteurs. Le produit de nos chiffres est un facteur de 8. Si nous changeons nos chiffres de place nos noms de changent pas. Qui sommes nous?
Answered by Maxime Fortier Bourque. |
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The area of an equilateral triangle |
2008-03-28 |
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From Elizabeth-Morgan:
I have a problem that reads:
Find the area of a triangle with sides of 4 cm. Find the height first.
This means that I have an equilateral triangle, and I need a formula
to calculate the height using the base, and the sides.
Answered by Stephen La Rocque. |
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Probability and Merta trains |
2008-03-27 |
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From Lorie:
4. Merta claims that 74% of its trains are on time.
a. Find the probability that among the 60 trains, 38 or fewer arrived on time.
Answered by Harley Weston. |
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The cube root of 198 |
2008-03-27 |
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From bobby:
what is the cubed root of 198
Answered by Harley Weston. |
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A max-min problem |
2008-03-27 |
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From LSL:
show that of all rectangle with a given area, the square has the smallest perimeter.
Answered by Penny Nom. |
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A car tire full of concrete |
2008-03-27 |
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From robert:
I want to build a volleyball net support. I am using a car tire 24"odx16"id filled with concrete. how much will this weigh? thanks
Answered by Penny Nom. |
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5% tax on $1,500.00 |
2008-03-26 |
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From Kay:
If a sales tax is 5% on $1.500.00 car. What would be the total?
Answered by Penny Nom. |
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Similar triangles |
2008-03-26 |
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From Nisha:
In triangle ABC, LM is parallel to AB. If AL=x-3,AC=2x,BM=x-2,BC=2x=3. Find x
Answered by Penny Nom. |
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Operation on the mixed numbers |
2008-03-26 |
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From bradley:
1) Perform the indicated operation on the mixed numbers below; write answer in simplest form:
8 1/3 – 2 1/4
2) Perform the indicated operations on the mixed numbers below; write answer in simplest form; note;: "•" denotes multiplication:
2 1/2 • 3 2/3 • 5 3
Answered by Stephen La Rocque. |
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