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The square root of 2 the the X power |
2008-09-05 |
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Peter pose la question :
How can I re-write the expression: The square root of 2 the the X power?
Penny Nom lui répond. |
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What will be the resulting average? |
2008-09-05 |
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jean pose la question :
the average of 9 is 54.if 84 and 90 are added to the set of numbers ,what will be the resulting average?
Penny Nom lui répond. |
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Mowing a Lawn in Concentric Bands |
2008-09-05 |
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Mari pose la question :
two kids are mowing half of their backyard which is rectangular with
dimensions 75 ft by 90 ft. The first kid starts mowing at a corner
gradually working his way toward the middle by mowing concentric
bands around the outside edges.If the mower cuts 3-ft wide path,
at what point should the first kid stop and the second kid start mowing?
THANKS!
Janice Cotcher lui répond. |
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The percentage of sand in a soil mixture |
2008-09-05 |
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kristi pose la question :
2 m 3 of soil containing 35% sand was mixed
into 6 m 4 of soil containing 15% sand. What
is the sand content of the mixture?
Penny Nom lui répond. |
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Reading a Histogram |
2008-09-05 |
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Bea pose la question :
From a histogram only, can you find the frequency per each increment of an interval?
Janice Cotcher lui répond. |
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Mathematical induction |
2008-09-05 |
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James pose la question :
I need to prove a problem by induction regarding the Triangle Inequality. The problem is
abs(a1 + a2 +...+an) <= abs(a1) + abs(a2) +...+ abs(an).
Victoria West lui répond. |
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3 miles in 6 seconds |
2008-09-05 |
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Grant pose la question :
if a rocket sled is traveling 3 miles in 6 seconds, how fast is it going in miles per hour?
Harley Weston lui répond. |
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A discount as a percentage |
2008-09-05 |
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joeann pose la question :
if a product sold for $40.00 and you got a $10.00 discount what percentage discount do you recieve?
Penny Nom lui répond. |
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How do you write 92 tenths as a decimal? |
2008-09-05 |
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Miriam pose la question :
How do you write 92 tenths as a decimal?
Penny Nom lui répond. |
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Hundreds, tens, and units digits |
2008-09-05 |
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Cynthia pose la question :
write an expression for the value of a three-digit number whos hundreds, tens, and units digits are x, y, and z, respectively
Penny Nom lui répond. |
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A mixed number |
2008-09-04 |
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irena pose la question :
Need help writing this fraction as whole or mixed number 124/6
Penny Nom lui répond. |
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The selling price |
2008-09-04 |
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Robert pose la question :
Client wants to sell his property providing he is left with 100000.00$ net.
How do I calculate selling price if commission is 6% and taxes on the commission 6% Fed and 7.5%prov.
I'm taking the real estate class and this one really got me.
Penny Nom lui répond. |
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Microwave ovens and probability |
2008-09-04 |
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Vi pose la question :
A microwave oven manufacturer claims that only 10% of the ovens it makes will need repair in the first year. Suppose three recent customers are independently chosen.
a. If the manufacturer is correct, what is the probability that at least two of the three ovens will need repair in the first year?
b. If at least two of the three customers' ovens need repair in the first year, what inference may be made about the manufacturer's claim?
Harley Weston lui répond. |
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Half a circle |
2008-09-04 |
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brandon pose la question :
what are the area and perimeter and area of half a circle??
Penny Nom lui répond. |
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A surveillance satellite |
2008-09-04 |
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Rita pose la question :
A surveillance satellite circles Earth at a height of h miles above the surface. Suppose that d is the distance, in miles, on the surface of Earth that can be observed from the satellite.
(a) Find an equation that relates the central angle theta to the height h.
(b) Find an equation that relates the observable distance d and theta.
(c) Find an equation that relates d and h.
Penny Nom lui répond. |
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