Science & Mathematics - 8 September 2006

some questions-
1-absolute value of 2y+3 greater than 7
2-find an equation of the line containing the point (-1,4) and perpendicular to the line whose equation is x-y=6
3-multiply these complex #'s (3+2i)(4-7i)
4-express as a single logarithm: 2/3 log(small a) x-1/2 log(small a)+ 5 log(small a) z.
5-convert to an exponential equation: log(small a) c = 5
6- A pentagon with 5 sides congruent has a perimeter = to that of an octagon with all 8 sides congruent. one side of the pentagon is 2 less than 3x one side of the octagon. what is the perimeter of each figure?
7-real hard 1: Given f(x)=x^2 and g(x)=x+3, find
(f+g)(x), ff(x), fg(x), f (comp function) g(x), and g (cf) f(x)
thanks for all who answer, im stuck, cant you help a dumb girl out?++++please show the work, maybe ill get it thanks

2006-09-08 10:17:27 · 10 answers · asked by lila g 1 in Mathematics

ha

2006-09-08 10:17:17 · 5 answers · asked by ducky29904 1 in Mathematics

Two runners start in opposite directions at the northernmost point of a circular track 20.0 m in radius. If the speed of each runner is constant and is 5.31 km/h for Runner A and 3.44 km/h for Runner B, where will they meet? Where will they meet the second time? Assume that they go around the track on essentially the same path, with Runner A initially headed west and Runner B initially headed east.

2006-09-08 10:16:16 · 4 answers · asked by Bill W 1 in Physics

What I mean is: how are the ways piano work related to physical sceince, if so?

2006-09-08 10:15:49 · 3 answers · asked by peters_dude 1 in Physics

I live in India now, can I use my hairdryer & other electrical devices in the USA?

2006-09-08 10:15:47 · 8 answers · asked by farzad m 1 in Engineering

2006-09-08 10:14:08 · 5 answers · asked by mochaspice16 1 in Biology

The snake was seen in the woods near Lake Houston in Harris county Texas. This area was formerly river bottom land before the lake was built. It was about two feet long, black and shaped like a mocassin. (body wide in proportion to its head with a body that tapered quickly to its tail) At first I thought it was a cotton mouth water moccasin. It seemed to mimic one, partially coiling and pointing its head upward, mouth agape. It did not have the signature "cotton mouth". When its posturing did not make me leave it began shaking its tail rapidly, mimicking a rattle snake. There were no signs of any rattle. Its underside had a reticulated pattern in yellow.

2006-09-08 10:13:05 · 8 answers · asked by Anonymous in Zoology

I had a large tree in the middle of my back yard. I wanted to have it cut down but was afraid it might hit my fence. It was 2pm on a clear sunny day. I need to know how tall the tree was i guess but i cant climb the tree (wheelchair bound). I had only a yard stick, a tape measure, and a pencil and paper. In 5 minutes i knew how tall the tree was. Now, please someone tell me how i did it. It's an east math solution........dang, i hope i didnt leave any info out, this question really helped me to like math and know that you really may use it someday.

2006-09-08 10:09:19 · 9 answers · asked by Anonymous in Mathematics

2006-09-08 10:09:09 · 3 answers · asked by pinkbunny 1 in Weather

Hi,
I want to build my own telescope and now I need to know how I can build the mirrors, any ideas?

2006-09-08 10:05:06 · 6 answers · asked by Nuwanda 3 in Astronomy & Space

2006-09-08 10:01:03 · 5 answers · asked by thatgirl_angela07 1 in Mathematics

jw

2006-09-08 10:00:15 · 15 answers · asked by Anonymous in Earth Sciences & Geology

2006-09-08 09:57:22 · 5 answers · asked by Anonymous in Geography

2006-09-08 09:56:52 · 7 answers · asked by bizkit_ 3 in Geography

How do freeze something without lower the temp?

2006-09-08 09:55:13 · 21 answers · asked by Leelee 2 in Chemistry

Is the Classic IQ test on tickle.com timed? I was just wondering...

2006-09-08 09:55:11 · 8 answers · asked by sPiLtsunshine 3 in Other - Science

Does anyone know the elevation of the 9th ward of New Orleans. I know that it is below sea level but how far below is it?

2006-09-08 09:51:02 · 1 answers · asked by Miss Vira 4 in Earth Sciences & Geology

I was watching this TV show and the guest was a doctor and he said that if the man eats alot of grilled liver he is more likely to get a male child, provided that this happens before ovulation takes place.

2006-09-08 09:49:52 · 6 answers · asked by universal 4 in Medicine

the pill is small and yellow and has the imprint ip on top half of one side and on the bottom half of the same side it has the numbers 037

2006-09-08 09:46:38 · 11 answers · asked by jay r 1 in Medicine

this is nissy's lil sis- please answer this, i want a good grade<)

2006-09-08 09:36:28 · 4 answers · asked by dazzledee 2 in Other - Science

why do people squint at things they cant see properly??

2006-09-08 09:33:55 · 12 answers · asked by Happyworms 4 in Biology

2006-09-08 09:32:49 · 9 answers · asked by mrmustanggt05 1 in Astronomy & Space

No equasions, no jokes, just the simple question: What is time?? I know we are moving forward though it, but what IS IT?

2006-09-08 09:30:13 · 15 answers · asked by scott3eh 1 in Other - Science

2006-09-08 09:27:27 · 148 answers · asked by Anonymous in Earth Sciences & Geology

Specifications?

2006-09-08 09:27:21 · 1 answers · asked by Jon P 2 in Engineering

DNA is in all cells, both plant and animal, and, via RNA and ribosomes, codes for the production of proteins - the proteins have various functions. If this is the case, then why is it that in nutritional analyses of foods, specifically vegetables, there is no mention of proteins?

2006-09-08 09:25:51 · 5 answers · asked by Richard W 4 in Biology

2006-09-08 09:25:22 · 5 answers · asked by dmw24@sbcglobal.net 2 in Other - Science

If there are two light bulbs in series, and the resistance of each is 10 Ohms, is the total resistance of the circuit 20 Ohms? Is this the value used in Ohm's Law?

2006-09-08 09:20:32 · 5 answers · asked by Keyring 7 in Physics

2006-09-08 09:13:10 · 10 answers · asked by koky 1 in Mathematics

2006-09-08 09:11:23 · 7 answers · asked by CKRT SQRL 5 in Earth Sciences & Geology