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expressions/326838: what is -5<= x <=-2 or 2<=x looks like on the number line
is it
[-5,-2] union [2,infinity)?
I'm confused with the bracket and parentheses 1 solutions
Answer 234056 by Fombitz(13828) on 2010-07-29 13:48:30 (Show Source):
You can put this solution on YOUR website!Bracket means include that value in the region.
Parenthesis means don't include that value in the region.
 means [  ,  ] the values between  and  including both  and  .

.
.
.
 means [  ,  ) Value greater than 2 including 2. The parentheses is the normal convention since it's not really a value.
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Triangles/326843: If the longer leg of a right triangle is 1 cm longer than the shorter leg and the hypotenuse is 5 cm then what are the lengths of the legs? 1 solutions
Answer 234050 by Fombitz(13828) on 2010-07-29 13:24:45 (Show Source):
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Equations/326653: given:f(x)=(x^2-6x)/(2x^2-11x-6)
A. factor the numerator and the denominator
B. write domain in set builder notation
C. write the domain in interval notation
D. Simplify the expression 1 solutions
Answer 234022 by Fombitz(13828) on 2010-07-29 11:03:43 (Show Source):
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Miscellaneous_Word_Problems/326802: Can someone please explain this to me? I don't understand what to do.
Body Mass Index. Body mass index I can be used to determine whether an individual has a healthy weight for his or her height. An index between 18.5 and 25 indicates a healthy weight. Body mass index is given by the formula below, or model, where W is weight, in pounds, and H is height, in inches.
I=704.5W
H2
Margaret’s height is 63 in. Determine, in terms of an inequality, those weights W that will keep her body mass index below 25
1 solutions
Answer 234020 by Fombitz(13828) on 2010-07-29 11:01:35 (Show Source):
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Miscellaneous_Word_Problems/326803: Can someone please explain this to me?
Body Mass Index. Body mass index I can be used to determine whether an individual has a healthy weight for his or her height. An index between 18.5 and 25 indicates a healthy weight. Body mass index is given by the formula below, or model, where W is weight, in pounds, and H is height, in inches.
I=704.5W
H2
Margaret’s height is 63 in. Determine, in terms of an inequality, those weights W that will keep her body mass index below 25 1 solutions
Answer 234019 by Fombitz(13828) on 2010-07-29 11:00:36 (Show Source):
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Probability-and-statistics/326792: A spends 2 hours on patient medications, 5 hours on patient checks and 1 hour helping doctors. If the next day is spent exactly as the previous, what are the chances of completing patient checks or helping doctors? 1 solutions
Answer 234016 by Fombitz(13828) on 2010-07-29 10:55:06 (Show Source):
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Circles/326793: If a wheel that has a radius of 1 foot rolls 5 complete revolutions, how far will it travel? I know the answer is 2.5 ft, but I don't know how to get the answer. Thank you. 1 solutions
Answer 234012 by Fombitz(13828) on 2010-07-29 10:44:13 (Show Source):
You can put this solution on YOUR website!For each revolution, the wheel moves a distance equal to the circumference of the circle.

So for 5 revolutions,
 or approximately
 ft
.
.
.
Verify: Use a CD and a ruler. Mark a point on the CD, roll it one revolution until you reach the same point on the CD, then measure the distance traveled using the ruler. It should be about  .
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Travel_Word_Problems/326760: A private airplane leaves Midway Airport and flies due east at a speed of 180 km/hr. two hours later, a jet leaves Midway and flies due east at a speed of 900 km/hr. how far from the airport will the jet overtake the private plane? 1 solutions
Answer 234008 by Fombitz(13828) on 2010-07-29 10:37:31 (Show Source):
You can put this solution on YOUR website!Rate*Time=Distance
.
.
.
In that two hours, the first jet moved 360 km.
Find the distance for each plane when they meet  .
1. 
2. 
From eq. 2,

Substitute into eq. 1,
 km
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logarithm/326744: The number of dislocated eletric impulses per cubic inch in a transformer increases when lightning strikes by D=1900(2)^x where x is the time in milliseconds of the lightning strike.Find the number of dislocated impulses at x=0 and x=4
My answer is 1900 and 7600/.I need to know if this is wrong, please and what the right answer is.Thank you 1 solutions
Answer 234005 by Fombitz(13828) on 2010-07-29 10:32:31 (Show Source):
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test/326754: The sum of the digits of a three-digit number is 15. If the digits are reversed the resulting number is 1029. If the resulting number is subtracted from the original the difference is 693. What is the original number?? 1 solutions
Answer 234004 by Fombitz(13828) on 2010-07-29 10:29:59 (Show Source):
You can put this solution on YOUR website!If the digits are reversed the resulting number is 1029.
What resulting number?
The sum of the digits is the same so what operation causes the resulting number.
Please re-post.
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Miscellaneous_Word_Problems/326635: Study Time and Test Grades. A mathematics instructor asserted that
students' test grades are directly proportional to the amount of time
spent studying. Brent studies 15 hr for a particular test and gets a score
of85. At this rate, what score would he have received ifhe had studied
16 hr?
1 solutions
Answer 234002 by Fombitz(13828) on 2010-07-29 10:25:35 (Show Source):
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Equations/326781: The price of a product after a 15% discount is $255. What was the original price of the product?
Why doesnt 255 x 1.15 = work for this answer?? 1 solutions
Answer 233997 by Fombitz(13828) on 2010-07-29 10:16:53 (Show Source):
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Rational-functions/326787: For the 2 functions, f (x) and g(x), tables of values are shown below. What is the value
of g(f (3)) ?
x f(x) x g(x)
–5 7 –2 3
–2 –5 1 –1
1 3 2 –3
3 2 3 –5 1 solutions
Answer 233995 by Fombitz(13828) on 2010-07-29 10:14:20 (Show Source):
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