Science & Mathematics - 17 July 2007

y = 49x2 + 4x - pi , your grade would be the derivative, dy/dx,
evaluated for the independent variable x = 1. Good luck.

This is my test grade on my college algebra test after I requested my grade. My professor thinks he's funny.

2007-07-17 07:17:53 · 2 answers · asked by bleunumen 1 in Mathematics

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A rainbow with no rain?

This evening I was watching the clouds, fascinated to see at least three layers all moving in different directions. Then, for about two minutes, a rainbow appeared. It was circular, forming about 25% of a circle. It seemed to be in one of the higher layers of cloud. But there was no rain. It was a bright evening.
How did this happen?

2007-07-17 07:17:17 · 12 answers · asked by Anonymous in Weather

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What type of spider do you think it is?

In our garage in VA we have a little cluster (about 3 or 4) spiders that are exactly the same shape as a black widow but pale beige and slightly different markings. One actually managed to capture a huge - around 4 times as big as it- spider and slowly wrapped it. What type of spider can catch things so much bigger than itself in suburban VA? I thought they only went for things smaler than it. Worried if it can kill something much bigger than itself is it a danger to my little girls? No idea about ameican spiders as Im from the UK where the most deadly thing is a london taxi. Thanks

2007-07-17 07:17:09 · 5 answers · asked by ? 3 in Zoology

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Is tubelight an electronic or electrical device ?

2007-07-17 07:14:54 · 9 answers · asked by Devil 4 in Physics

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organ donation? what is your opinion?

is it moral?
what about blood transfusions?
i read once that people who had donated organs eg a liver or something, after they had recovered from surgery they began to TAKE ON PERSONALITY TRAITS OF THE DONAR. WAT THE FLAMING HELL IS THAT ABOUT ITS SCARING THE LIVING HELL OUT OF ME THAT IM TOO SCARED TO LEAVE THE HOUSE INCASE I GET IN AN ACCIDENT, HAVE AN ORGAN DONATION AND THEN BECOME SOME SORT OF JEKYLL & HYDE CREATION. please help.

2007-07-17 07:14:53 · 6 answers · asked by Anonymous in Medicine

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If y varies inversly as x^2, and y = 2 when x=4, what is the constant of variation?

2007-07-17 07:14:53 · 5 answers · asked by Anonymous in Mathematics

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What does "on call" mean for doctors?

When a doctor (specifically a pediatrician) is "on call", what exactly do they have to do? How often and at what hours are pediatricians on call (I know it ranges depending on how many clients and all...)?

2007-07-17 07:11:45 · 12 answers · asked by me 3 in Medicine

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Please help me solve this word problem.?

The amount of money that salesperson makes varies directly as the total amount of sales made. If the salesperson receives $7,500 for selling a house for $120,000, how much will he or she make if he/she sells a house for $150,000?

Your help would be very much appreciated. Thank you

2007-07-17 07:10:53 · 7 answers · asked by Anonymous in Mathematics

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SAT sample question plz help?

if p, r, and s are 3 different prime numbers greater than 2, and n=p times r times s, how many positive factors, incluiding 1 and n does n hav

the answer in the book says 8 but i hav no clue how to get it.
plz explain

2007-07-17 07:09:33 · 4 answers · asked by Anonymous in Mathematics

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wherw is kochi?

kochi is an indrustrial city of kerala in india

2007-07-17 07:09:28 · 11 answers · asked by Anonymous in Geography

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How many square metres are there in an acre?

2007-07-17 07:06:18 · 9 answers · asked by Mark E 1 in Geography

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Do you know where Ulcinj is?

I am really curious if someone knows where Ulcinj is? Or anything about this town...
One little help it's a small mediterenian town...
Answers, without Yahoo! search !!!

2007-07-17 07:06:03 · 4 answers · asked by SugarGirl 2 in Geography

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do u believe aliens really made crop circles?

would it be that hard for a human to make one?

2007-07-17 07:04:37 · 7 answers · asked by Heather 4 in Other - Science

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discriminants of quadratic equation??? explain?

which # is the discriminant of a quadratic equation whose roots are real, unequal, and irrational?
a. 0
b.7
c.-5
d.4

plzzzz explain thanks

2007-07-17 07:03:59 · 5 answers · asked by ? 1 in Mathematics

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what is the taste of benzene???

please specify the physical propertiws also

2007-07-17 07:02:41 · 4 answers · asked by riyas_rb 1 in Chemistry

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wot is the strangest thing u have swallowed?

i ate a pearl wen i was small, thought it was some type of shinny pea?!

2007-07-17 07:01:53 · 8 answers · asked by Anonymous in Other - Science

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What are some of the benefits of squeezing so much data into virtually every cell in the body?

What are some of the benefits of squeezing so much data into virtually every cell in the body?
Why did we not evolve with one central repository of DNA rather than having it replicated throughout the body?
Assume that the hereditary information carried in genes and DNA is responsible for a lot of the differences we observe in humans and other living things. How could just four different bases in DNA strands be responsible for the almost endless variety found in nature?

Yes it's Homework.. and Yes I need help.

2007-07-17 07:01:45 · 4 answers · asked by Anonymous in Other - Science

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(2+2i)^5(-3+3i)^3 / (√3+1)^10?

Convert all complex #'s to trigonometric form & simplify. Write answers in standard form.

2007-07-17 06:59:32 · 4 answers · asked by Deutschjoe 3 in Mathematics

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A is 11 years old and B is 68 years old. in how many years will B be just 4 times as old as A?

2007-07-17 06:59:18 · 6 answers · asked by jessica f 1 in Mathematics