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What is 13% of $5.99? |
2010-06-15 |
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Paige pose la question :
What is 13% of $5.99 ?
Penny Nom lui répond. |
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Expand and simplify |
2010-06-15 |
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Alaa pose la question :
Expand and simplify
(x-9)(x+2)
Penny Nom lui répond. |
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How many gallons do I need to finish filling the tank? |
2010-06-14 |
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Bruce pose la question :
I have a tank on it's side. 44" dia. by 72" long, I'm 6" from having tank full. How many gallons do I need to finish filling tank?
Harley Weston lui répond. |
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Comparing percentages |
2010-06-14 |
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Anouska pose la question :
In category A, Annie gave 5 out of 6 responses. I make this 83%
I the same category, Adam gave 4 out of 10 responses. I make this 40%
Does this mean that Annie gave 43% more responses in this category than Adam?
Robert Dawson lui répond. |
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A max/min problem |
2010-06-12 |
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valentin pose la question :
What is the maximum area of an isosceles triangle with two side lengths equal to 5 and one side length equal to 2x, where 0 ≤ x ≤ 5?
Harley Weston lui répond. |
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The area of a circle |
2010-06-12 |
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grier pose la question :
please,
what is the area of a semicircle with arc length 3pi?
Penny Nom lui répond. |
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Distribution with Fractional Terms |
2010-06-11 |
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Vincent pose la question :
Compounded semiannually. P dollars is invested at annual interest rate r for 1 year. If the interest iscompounded semiannually, then the polynomial P(1 + r/2)^2 represents the value of the interest after 1 year. Rewrite this expression without parentheses. Evaluate the polynomial if P=$200 and r = 10%.
Janice Cotcher lui répond. |
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My phone is "sim locked" |
2010-06-10 |
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Daniel pose la question :
Question from daniel:
got a phone that says sim locked, it requires 0-9 digit code to get in, how many combinations could there be if you could please list the possibilities, the number can be repeated.
Penny Nom lui répond. |
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Roosters, hens and chicks |
2010-06-10 |
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Kamarah pose la question :
If a rooster is worth 5 coins and a hen is worth 3 coins and chicks 3 together are worth 1 coin, how many roosters, hen and chicks totaling 100 can be bought with 100 coins?
notes:
you must buy at least one of each type of fowl
no fractional fowl
chicks are purchased in multiple of 3
find 3 solutions
Penny Nom lui répond. |
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Graphical Representation of Complex Numbers |
2010-06-08 |
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Anas pose la question :
why do we write complex number a+ib as (a,b)?
Janice Cotcher lui répond. |
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Standard Deviation from a Proportion |
2010-06-08 |
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silvestre pose la question :
A large company finds that approximately 17% of all purchases are returned for credit. If the company sells 100,000 different items this year, about how many items will be returned. Find the Standard Deviation.
Janice Cotcher lui répond. |
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The tires on Helen's new car |
2010-06-08 |
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Rich pose la question :
Helen bought a new car with four tires and a full-size spare. If she rotated the tires so that each tire would have the same amount of wear, then how many miles were on each tire when her odometer showed 40,000 miles?
Penny Nom lui répond. |
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Going to the bike shop |
2010-06-07 |
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Omi pose la question :
Marie rode her bicycle from her home to the bicycle shop in town and then walked back home. If she averaged 6 miles per hour riding and 3 miles per hour walking, how far is it from her home to the bicycle shop if her total travel time was 1 hour?
Penny Nom lui répond. |
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An input-output table |
2010-06-07 |
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Brian pose la question :
Make an Input -output table to represent the function. Use 0,1,2,3 as the Domain.
f(x)= 3+7x
Harley Weston lui répond. |
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Using the limit definition |
2010-06-06 |
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Meagan pose la question :
Using the limit definition find the derivative of 3/(2x^2)
Harley Weston lui répond. |
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