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The square root of 2 the the X power |
2008-09-05 |
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From Peter:
How can I re-write the expression: The square root of 2 the the X power?
Answered by Penny Nom. |
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What will be the resulting average? |
2008-09-05 |
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From jean:
the average of 9 is 54.if 84 and 90 are added to the set of numbers ,what will be the resulting average?
Answered by Penny Nom. |
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Mowing a Lawn in Concentric Bands |
2008-09-05 |
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From Mari:
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!
Answered by Janice Cotcher. |
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The percentage of sand in a soil mixture |
2008-09-05 |
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From kristi:
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?
Answered by Penny Nom. |
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Reading a Histogram |
2008-09-05 |
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From Bea:
From a histogram only, can you find the frequency per each increment of an interval?
Answered by Janice Cotcher. |
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Mathematical induction |
2008-09-05 |
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From James:
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).
Answered by Victoria West. |
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3 miles in 6 seconds |
2008-09-05 |
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From Grant:
if a rocket sled is traveling 3 miles in 6 seconds, how fast is it going in miles per hour?
Answered by Harley Weston. |
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A discount as a percentage |
2008-09-05 |
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From joeann:
if a product sold for $40.00 and you got a $10.00 discount what percentage discount do you recieve?
Answered by Penny Nom. |
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How do you write 92 tenths as a decimal? |
2008-09-05 |
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From Miriam:
How do you write 92 tenths as a decimal?
Answered by Penny Nom. |
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Hundreds, tens, and units digits |
2008-09-05 |
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From Cynthia:
write an expression for the value of a three-digit number whos hundreds, tens, and units digits are x, y, and z, respectively
Answered by Penny Nom. |
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A mixed number |
2008-09-04 |
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From irena:
Need help writing this fraction as whole or mixed number 124/6
Answered by Penny Nom. |
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The selling price |
2008-09-04 |
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From Robert:
Client wants to sell his property providing he is left with 100000.00$ 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.
Answered by Penny Nom. |
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Microwave ovens and probability |
2008-09-04 |
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From Vi:
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?
Answered by Harley Weston. |
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Half a circle |
2008-09-04 |
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From brandon:
what are the area and perimeter and area of half a circle??
Answered by Penny Nom. |
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A surveillance satellite |
2008-09-04 |
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From Rita:
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.
Answered by Penny Nom. |
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