Science & Mathematics - 28 August 2007

1, find all the prime numbers between 80 and 100
2, which numbers, less than 100, with a 1 in the units place are prime numbers?
3, list all the prime numbers which will divide exactly into:
1890 and 1155



first correct 10 pts plus i will star your next 3 questions.

2007-08-28 07:30:51 · 10 answers · asked by Anonymous in Mathematics

The inverse of each function

f(x)= 3/4x

g(x)= 3+x
y=3x-2

2007-08-28 07:27:11 · 8 answers · asked by Qamb 1 in Mathematics

2007-08-28 07:26:12 · 6 answers · asked by nadieya 1 in Mathematics

Which of these Equations or functions are linear ? yes or no you'll help a lot if you explain me why
Becuase seriously i'm having a lot of problems with them

h(x) =23

y= 2/3x

y=5/x

9-5xy=2

I hope you can help me

2007-08-28 07:24:48 · 5 answers · asked by Qamb 1 in Mathematics

2007-08-28 07:20:55 · 14 answers · asked by Bel H 1 in Astronomy & Space

2007-08-28 07:18:23 · 6 answers · asked by Anonymous in Zoology

2007-08-28 07:17:22 · 15 answers · asked by celticdreadess 3 in Astronomy & Space

2007-08-28 07:15:49 · 7 answers · asked by Wilberto R 1 in Mathematics

integrate: arctan(7z)dz

2007-08-28 07:15:12 · 7 answers · asked by the man 2 in Mathematics

What is his weight in deep space, far away from any celestial body? What is his mass there?

2007-08-28 07:11:46 · 12 answers · asked by Pascal 4 in Physics

Just thinking because animal hide is tough and animals run away so they are not hurt, it would be hard to get a perfect throw at them. I would think it would be more of an intimidation factor. To either trap the animals or to scare away tigers and take their food like scavengers/hunters.

2007-08-28 07:09:31 · 4 answers · asked by John Justin Garcia 2 in Zoology

If she´s 5´8" and 135 lbs in normal size but she grows to a 150 foot tall giantess. What would her weight be... the GTS Converter says 169 tons. Can someone approve that ?

2007-08-28 07:09:23 · 7 answers · asked by Josh 2 in Physics

2007-08-28 07:07:16 · 3 answers · asked by Wilberto R 1 in Mathematics

I've always been fascinated by the praying mantis! They are lightening quick, resourceful and stealthy.

Spiders also fascinate me! Creatures that build webs...its just so interesting!

What insect do you like and why?

2007-08-28 07:04:54 · 9 answers · asked by Anonymous in Biology

I noticed that a low flow continuous stream of water from my kitchen faucet will deflect toward the balloon when I bring the balloon to where it is almost touching the stream.

If you try this adjust the flow for a fairly weak stream, laminar in nature. Blow up a small latex balloon to about six-seven inches in diameter, then bring it closer and closer to the stream and you will see the stream appear to follow the curvature of the balloon deviating from its original straight down path. Why does this happen?

2007-08-28 07:02:12 · 3 answers · asked by andyg77 7 in Physics

and a car at point C heading for point D going 50 mph.On the car at point a is a fly.this fly is giong to fly between point a and point c. the question is ,how many times will the fly fly between the two cars.

2007-08-28 07:01:46 · 5 answers · asked by drummer158 3 in Mathematics

How many cars were involved?
Please show math work.

2007-08-28 06:56:55 · 9 answers · asked by Monica 1 in Mathematics

i mean the spacecrafts

2007-08-28 06:56:06 · 2 answers · asked by Q.xi 1 in Astronomy & Space

2007-08-28 06:53:22 · 2 answers · asked by Anonymous in Engineering

2007-08-28 06:53:02 · 3 answers · asked by Jonny Crust 1 in Geography

a. 3 meters per 1000 yrs
b. 30 meters per 1000 yrs
c. 300 meters per 1000 yrs
d. 3 kilometers per 1000 yrs
e. 30 kilometers per 1000 yrs.

2007-08-28 06:43:12 · 4 answers · asked by sikhism4life88 1 in Chemistry

a) 49
b) 50
c) 51
d) 52
e) 53

2007-08-28 06:36:07 · 17 answers · asked by Alexander 6 in Mathematics

2007-08-28 06:33:27 · 3 answers · asked by Anonymous in Astronomy & Space

A certain grade in a school contains 96 pupils. If there are 40 boys, what is the ratio of boys to girls in this grade?

2. A man borrowed $65 from the bank for one year. He paid $7.80 in interest. What rate of interest was charged by the bank?


PLEASE HELP!

THANKS!

2007-08-28 06:28:38 · 8 answers · asked by someone 1 in Mathematics

IVE JUST BOUGHT a book called " new higher physics .. 2ed"

the train travels the 75km between edinburgh and glasgow... in 50 min (0.83 hours) its average speed is

average speed = 75km
------
0.83 h
average speed = 90km h(-1)

WHAT THE HELL IS (-1) how can we calculate this (-1) .. and what does it mean?!

2007-08-28 06:28:30 · 4 answers · asked by TRUE-NERDY-BOY 1 in Physics

Is it possible to be anywhere on the planet, witness a lunar eclipse, and experience daylight at the same time?

2007-08-28 06:24:48 · 7 answers · asked by wilbur 1 in Astronomy & Space

What does ex (4/3) or (1/5) mean in computer math because i asked a question and i have no idea if that means multiply or divide or whatever. 10 points and a best answer for whoever answers the first!

2007-08-28 06:20:43 · 9 answers · asked by KayKay 2 in Mathematics

HELP!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1

2007-08-28 06:18:49 · 9 answers · asked by NIckz 1 in Astronomy & Space

Suppose that the displacement of an object is related to the time according to the expression x=Bt^2. What are the dimensions of b?
also
A displacement is related to the time as x= Asin(2pi f t) where A and f are constants find the dimensions of A (hint: a trigonometric function appearing in an equation must be dimensionless)

2007-08-28 06:18:05 · 6 answers · asked by Snowandskibaby 2 in Physics

2007-08-28 06:12:27 · 4 answers · asked by Shanif K 1 in Biology