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.9 repeating plus .2 repeating |
2008-06-10 |
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megan pose la question :
How do you express the addition of .9 repeating plus .2 repeating?
Penny Nom lui répond. |
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An ellipse and circle with the same area |
2008-06-09 |
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Michael pose la question :
The area of the ellipse if equal to the area of a circle with radius=40 ft.
Find the values of a and b using appropriate algebraic techniques, not basic math computations.
A=pi ab and satisfy the constraint a+b=100????
Penny Nom lui répond. |
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Geometric shapes that are the same |
2008-06-09 |
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tia pose la question :
what is the name used for shapes that are exactly the same?
Harley Weston lui répond. |
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How many different ways can cards fall when shuffling? |
2008-06-09 |
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Twyla pose la question :
How many different ways can cards fall when shuffling? In other words,
if you have 52 numbers, each one unique, how many different ways can
they be arranged, using each number only once?
Penny Nom lui répond. |
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All wiffs are miffs and all miffs are kiffs. |
2008-06-08 |
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Allison pose la question :
All wiffs are miffs. all miffs are kiffs. There are 25 wiffs. There are 76 kiffs. 33 kiffs are not miffs. How many miffs are not wiffs?
Penny Nom lui répond. |
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Geometric sequences |
2008-06-08 |
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Rita pose la question :
A geometric sequence is given. Find the common ratio and write out the first four terms.
(1) {(-5)^n}
(2) {(2^n)/(3^(n - 1)}
Penny Nom lui répond. |
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calcul heures et minutes |
2008-06-08 |
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cadare pose la question :
je n'arrive pas à comprendre et resoudre mes problèmes d'heures et de minutes,ex parti à 22h30, j'arrive à 7h15 quelle est la durée du trajet
Claude Tardif lui répond. |
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Arclength |
2008-06-07 |
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prem pose la question :
i am engineer, i need the formula for calculate the arclength by using only chord length and radius only
Penny Nom lui répond. |
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g(m-1,2n)+n |
2008-06-07 |
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Florence pose la question :
What does g(m-1,2n)+n for m>0, n>=0 mean.
Penny Nom lui répond. |
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90% of gross leaseable footage |
2008-06-07 |
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Rosalind pose la question :
90% of gross leaseable footage in the shopping center, being 394,577, excluding that square footage leased by major anchor tenants, being 284,747. Would you deduct the 284,747 from the 394,577, then multiply by the 90%. Or would you multiply the 394,577 by the 90%, then deduct the 284,747?
Penny Nom lui répond. |
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How many gallons of oil will be needed to raise a 4" plunger 25 feet? |
2008-06-06 |
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cory pose la question :
How many gallons of oil will be needed to raise a 4" plunger 25 feet?
Penny Nom lui répond. |
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The positive real zeros of f(x) = x^4 + x^3 - 7x - 1 |
2008-06-06 |
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CiCi pose la question :
How many positive real zeros does the function f(x) = x4 + x3 - 7x - 1 have?
Janice Cotcher and Harley Weston lui répond. |
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Filling a hole with sand |
2008-06-05 |
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greg pose la question :
I have a 18 ft. diameter circle and need to put 2 in. of sand in it i need to know how much sand in cubic yards and tons
Harley Weston lui répond. |
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The mean and variance |
2008-06-05 |
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Donny pose la question :
An investment will be worth $1,000, $2,000, or $5,000 at the end of the
year. The probabilities of these values are .25, .60, and .15, respectively.
Determine the mean and variance of the worth of the investment.
Harley Weston lui répond. |
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The volume of a hexagonal pyramid |
2008-06-05 |
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Angie pose la question :
My son is working on a hexagonal pyramid. The base is 4 and the slant height is 6. We know that the answer is 48 times the sqrt of 2. We don't know how they got it. We attached the drawing of it.
Penny Nom lui répond. |
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