Science & Mathematics - 4 November 2007

2007-11-04 01:34:40 · 6 answers · asked by Derrick James D 1 in Astronomy & Space

1, 4, 7 ,10 1,3
Work out the expression, in terms of n, for the nth term of the sequence.
i really dont know how to do this - can you please help me?? i havent got a clue and ive got an exam on it tommorrow!! help!!

2007-11-04 01:30:04 · 6 answers · asked by x_joanne_m_x 1 in Mathematics

2007-11-04 01:27:59 · 5 answers · asked by Anonymous in Botany

2007-11-04 01:18:10 · 12 answers · asked by X.Choices.X 2 in Mathematics

a bus for a school field trip costs 624 pesos. Since the number of persons making the trip is 13 less the the capacity of the bus, it costs 8 pesos more per student than if the bus is filled. How many students are in the trip?

2007-11-04 01:17:05 · 8 answers · asked by IAN M 1 in Mathematics

plz..help

2007-11-04 01:14:46 · 3 answers · asked by Anonymous in Mathematics

when i came home from work one day it flew onto my head anybody heard simlar

2007-11-04 01:11:46 · 5 answers · asked by John D 2 in Zoology

Have you ever used No-Doz? What did it do for you? Side-effects?

Effects on the ability to pay attention? Attention span? Concentration? Focus? Other?

(Caffeine tablet for mental alertness)

2007-11-04 01:10:12 · 2 answers · asked by Anonymous in Medicine

Find the magnitude and direction of the gravitational force on a fifth 2.0 kg mass placed at the midpoint of the bottom side of the square. N

Thanks for your help!

2007-11-04 01:01:20 · 3 answers · asked by cindy d 4 in Physics

2007-11-04 00:58:32 · 1 answers · asked by ac 1 in Chemistry

1.3 sin x- 2 sin x + sin x is equal to
a.o
b.2 sin x
c.-2 sin x
d.sin x

2.the sum of 5 cos x -tan x and 5 tan x - cos x is

a.6 cos x- 6 tan x
b.4 cos x - 4 tan x
c.cos x -13
d.4 cos x +13

3.when we subtract 2 cos x +5 from 3 cos x -8,the result is
a. cos x-3
b.-cos x -3
c.cosx -13
d.5 cos x + 13

4.when simplified,the expression
3 sin x + 5 sin x (cos x-sin x) is equal to
a.3 sin x + 5sin x cos x - 5 sin ^2 x
b.8 sin x cos x-8 sin^2 x
c.3 sin x + 5 sin x cos x - sin x
d.8 sin x - cos xsin x

5.the expression of sin^@ x-1 divided by sin x + 1 is equal to

a. sin x
b.sin x-1
c.1
d.sin x +1


you have to show youre solution

honestly speaking its really hard and i really need help and if you answered that i highly appreciated

2007-11-04 00:54:41 · 5 answers · asked by ironfist09 2 in Mathematics

i really need the awnser it is a test on monday and i am revisning please can someone tell me the awnser!?!

2007-11-04 00:46:48 · 3 answers · asked by shippay 2 in Chemistry

i was told that cats who are of three colours: black, white and red are special, because they catch rats and help us to stay safe of diseases carried by rats.
is that true?

2007-11-04 00:23:54 · 13 answers · asked by Anonymous in Zoology

2007-11-04 00:14:43 · 9 answers · asked by yashvi s 2 in Physics

The string is L= 80 cm long, has a ball attached to one end, and is fixed at its other end. A fixed peg is at point P. Released from rest, the ball swings down until the string catches on the peg; then the ball swings up, around the peg. if the ball is to swing completely around the peg, what value must distance d (point P) exceed? ( hint: The ball must still be moving at the top of its swing. Do yo see why?)

2007-11-04 00:08:17 · 1 answers · asked by Anonymous in Physics

2007-11-04 00:04:16 · 11 answers · asked by xenial 1 in Physics

I'm 21 years old, and am taking the antidepressant, Celexa. It is not recommended that patients drink while on this drug. It apparently causes drowsiness, and I'm unpredictable while drinnking anyway, since I only drink on holidays or family events. However, I don't want to tell people that I'm on antidepressants. Which other medication can I use as an excuse not to drink, especially now that the holidays are coming up and I'm going to be surrounded by my extended family (my parents know about the antidepressants, but my other relatives don't).

2007-11-04 00:02:07 · 10 answers · asked by Cybele 1 in Medicine