Science & Mathematics - 3 September 2007

This is an algebra question demonstrating the 5 number summary and box plots. The complete problem: Stu had a mean score of 25.5 on four 30 point papers in English. He remembers three scores: 23, 29, 27. Estimate the fourth score without actually calculating it. Then check estimate by calculating the 4th score. Now, what is the five number summary for this situation? Does it make sense to have a five number summary for this data set? Why or Why not?

2007-09-03 05:07:19 · 1 answers · asked by titra j 1 in Mathematics

Thanks! Please explain!

2007-09-03 05:06:59 · 0 answers · asked by Arch-RF d 1 in Mathematics

2007-09-03 05:06:15 · 8 answers · asked by sonam g 1 in Geography

A nut store usually sells cashews for $4.50 per pound and peanuts for $1.90 per pound. At the end of the month, the peanuts had not sold well. In order to sell 50 pounds of peanuts, the manager decided to mix the 50 pounds of peanuts with some cashews and sell the mixture for $2.50 per pound. How many pounds of cashews should be mixed with the peanuts to ensure no change in profit? (The vaule remains the same)

2007-09-03 05:00:13 · 4 answers · asked by aajain03 1 in Mathematics

In 8th grade apllying for Magnet schools

2007-09-03 04:59:27 · 6 answers · asked by Anonymous in Astronomy & Space

2007-09-03 04:55:41 · 27 answers · asked by Anonymous in Chemistry

iv been getting alot of help for this problem but i cant get the answer for this question.

question:

the 7th graders sold tickets to their play. the tickets cost $3 for students and $6 for adults. one day they sold 79 tickets and collected $375. how many student tickets and how many adult tickets were sold???

2007-09-03 04:50:11 · 8 answers · asked by Nikki 2 in Mathematics

2007-09-03 04:46:24 · 4 answers · asked by Anonymous in Medicine

Some people argue it will be due to the sun - others say it will be a massive flood??? anyone actually got any true facts about this - or does anyone believe that the world will never end??

2007-09-03 04:46:21 · 17 answers · asked by Anonymous in Astronomy & Space

My father had quad bypass heart surgery 2 weeks ago. He was released from the hospital but had been complaining of low stomach pain for 3 days prior to his release. The doctor and nurse in charge said the pain was due to stool softener meds. 2 days after release the pain forced return to the hospital where it was found that his colin was perforated and required emergency surgery. The doctor / surgeon said the cause was due to a blood clot that formed in the colin causing perforation. It should also be noted that the indicated pain site was at a sewn up area on the lower abdomen (arthroscope ? )
His condition is very much critical due to contamination . My question is how common is this complication after heart surgery and is negligence involved . Do heart patients often get sent home with perforated colin's? I would appreciate your input.

2007-09-03 04:42:34 · 2 answers · asked by g d 2 in Medicine

If we accept that verbal telepathy exists, then people that can send thoughts at distance could also lie as in ordinary conversation, but empathy, considered being lower level sensivity/animals are greatest empaths/could perhaps detect false in a telepath emission-is this in some logic?

2007-09-03 04:41:55 · 9 answers · asked by ThanksBelit 2 in Paranormal Phenomena

why? Terrible working conditions? or what?

2007-09-03 04:41:20 · 6 answers · asked by S i r i 1 in Medicine

Popular view is sickle cell is a wonderful case for evolution, as the sickle cell in comparison to a regular blood cell is not affected by the parasite-plasmodium falciparum
THe sickle cell mutation, reduces the shape and volume of a regular blood cell. Resulting in a diminished cell with a cresecent moon type appearance. This cell is therefore capable of transporting less oxygen to respiring tissue, resulting in the disease sickle cell anaemia.
As well as a diminshed capacity for oxygen carrying, also these cells, have a harder time navigating their way through capillaries and other smaller blood vessels, causing bottlenecks, result= internal discomfort.
The crescent shape means that the malarial parasite cant lock its enzymes onto the blood protein, resulting in immunisation,
but this is at the cost of low oxyghen transport and pain.
It's a mutation that removes information for a healthy blood cell.
Evolution is gaining information. This is a mutation that takes
info away

2007-09-03 04:41:11 · 5 answers · asked by Anonymous in Biology

A man observes a tower at angle @.After walking a distance equal to twice the height of the tower he agins observed the angle to be 2@.What is the value of @?

Ans: 15 (pi/12).I dont know how the answer is obtained.Try as hard as I might I keep on getting @=22.5.

Please HELP.
Thank you.
Tom Marvolo Riddle.

2007-09-03 04:39:00 · 3 answers · asked by vishnukmd 1 in Mathematics

2007-09-03 04:34:34 · 20 answers · asked by Anonymous in Astronomy & Space

How much HCl is produced from the reaction of an excess of HSbCl4 with 3 moles H2S in this reaction? ( balance reaction first)
HSbCl4 + H2S ---> Sb2S3 + HCl

2007-09-03 04:34:05 · 2 answers · asked by Anonymous in Chemistry

Limestone (CaCOsubscript3) is decomposed by heating to quicklime (CaO) and carbon dioxide. Calculate how many grams of quicklime can be produced from 4.0 kg of limestone.

2007-09-03 04:33:46 · 1 answers · asked by Anonymous in Chemistry

the density of water is 1.00 g/mL at 4 degrees C. How many water molecules are present in 5 mL of water at this temperature?

2007-09-03 04:31:01 · 1 answers · asked by Anonymous in Chemistry

1how can you reduce the risk of spills when pouring liquid chemicals?

2why is it important to read labels before mixing chemicals?

3describe the safe way to mix water with acid.

2007-09-03 04:29:46 · 1 answers · asked by Anonymous in Chemistry

2007-09-03 04:29:40 · 5 answers · asked by kayla.nichols 1 in Mathematics

I've always wondered this. And since the world tilts, wouldn't the south. hemisphere get winter when the northern hemisphere has summer?

2007-09-03 04:28:36 · 3 answers · asked by aziandj 2 in Earth Sciences & Geology

At a certain fast food chain, you can buy Chicken Lumps in quantities of 6, 9, or 20. So you can buy 21 Lumps (= 2x6 + 9), but you can't buy 5, 19, or 22.

What is the largest number of Chicken Lumps you CAN'T buy, and why?

2007-09-03 04:27:36 · 1 answers · asked by TurtleFromQuebec 5 in Mathematics

i just need your opinion lol

2007-09-03 04:27:12 · 5 answers · asked by Nicole1649 2 in Zoology

2007-09-03 04:24:41 · 4 answers · asked by Carlos A 1 in Mathematics

2007-09-03 04:23:55 · 9 answers · asked by Anonymous in Mathematics

I just need the definition of Silicon Signal diode and Silicon Power diode

2007-09-03 04:21:01 · 3 answers · asked by ninja_blackanew 1 in Engineering

2007-09-03 04:19:41 · 12 answers · asked by Anonymous in Earth Sciences & Geology

Would there ever be a doctor (of any type) that would need to answer their cell phone while on vacation?

2007-09-03 04:17:08 · 5 answers · asked by Peter N 1 in Medicine

A researcher wants to find out wether there is a difference in the mean systolic bp of 40 yr old males and females. A random group of 40 yr olds were tested:
males females
samle size 15 10
mean systolic bp 132 127
standard of deviation 10 5
at the 0.10 level of signifigance, do the results indicate a difference btw. male and female systolic blood pressure?

I don't know how to figure out which formula to use...

2007-09-03 04:16:47 · 3 answers · asked by Karen W 2 in Mathematics

what include city in their names

2007-09-03 04:14:26 · 15 answers · asked by lilak95 1 in Geography