Science & Mathematics - 28 December 2007

2007-12-28 20:13:10 · 2 answers · asked by n_udoh 2 in Agriculture

I have got a curiosity whether mercury can melt gold. Can any one confirm my doubt?

2007-12-28 20:03:55 · 5 answers · asked by Madasamy 1 in Chemistry

2007-12-28 20:00:47 · 4 answers · asked by Anonymous in Biology

Solve these applications:

9% sales tax on one 50 inch television that costs $940 What is the sales tax?

20% discount on one VCR that costs $104 Sales tax is 7% How much is the after-tax total?


60% discount on one Cordless Phone that costs $62 What is the discount?

You want to buy the Laptop Computer for $1,955 and also the VCR for $104. If the sales tax is 9.5%, what is your after-tax total?


Find each percent of increase or decrease. Round your answer to the nearest tenth of a percent.

95 is increased to 513


300 is increased to 372


30 is decreased to 15


47 is decreased to 41.83



thnx

2007-12-28 19:51:44 · 5 answers · asked by Anonymous in Mathematics

Why was the dinosaurs the only animals that died out, and how did other animals/human kind survived! Don't believe in evolution crap!!!!

2007-12-28 19:48:26 · 31 answers · asked by powerpuff 1 in Biology

it with the amount of hair your sister has and you kept multiplying this with the people (let's say in your church or an organization), approximately what would be your answer?

2007-12-28 19:44:10 · 7 answers · asked by Mike Hunt 2 in Mathematics

Hi.. I'm really not understanding how to complete the square (especially when there are negatives). This is an A Level C1 past exam qu, and I really have no idea how to do it. I only presume that I need to use completing the square, but another method would be fine.

Please show your full method:

f(x) = 9 +6x -x^2

i) Find the values of A and B such that
f(x) = A - (x+B)^2

ii) State the maximum value of f(x)


Thank you vv much =D

2007-12-28 19:37:42 · 7 answers · asked by ღ♥ღ latoya 4 in Mathematics

2007-12-28 19:33:58 · 25 answers · asked by Raj Gadhvi 1 in Geography

what are the top 5 best chemistry tricks? pls help me...

2007-12-28 19:29:24 · 2 answers · asked by jekena 1 in Chemistry

2007-12-28 19:23:56 · 9 answers · asked by dianna 1 in Medicine

If cos^2 θ = (m^2 - 1)/3 and tan^3 (θ/2) = tan α,
then prove that sin^(2/3) α + cos^(2/3) α = (2/m)^(2/3)

2007-12-28 19:23:23 · 1 answers · asked by Madhukar 7 in Mathematics

how does human activity affect glaciers, ice sheets, and glacial landscape?

2007-12-28 19:19:26 · 5 answers · asked by P/\nDa 3 in Earth Sciences & Geology

Curiosity

2007-12-28 19:17:13 · 2 answers · asked by Oscar E 1 in Zoology

2007-12-28 19:17:06 · 15 answers · asked by shanda L 1 in Mathematics

I need some .wav files for the Wampa Star Wars sounds. HELP!

2007-12-28 19:15:31 · 3 answers · asked by punknerd5 2 in Astronomy & Space

At the race track, one spectator watched a number of cars whirling around the circular track and said, " Ther'es Joe, that man in the white car!" " Yes I see." was the reply, "but how many cars are running in this race?" Someone replied. " one-third of the cars are in front of Joe added to three quarters behind him will give you the answers." how many cars were being driven in the race?

2007-12-28 19:13:16 · 3 answers · asked by Anonymous in Mathematics

whats this #? (in numbers)

XXXVII


10x!

2007-12-28 19:13:06 · 12 answers · asked by Anonymous in Mathematics

2007-12-28 19:11:44 · 3 answers · asked by mathstudent 2 in Mathematics

If those people were taunting and teasing that tiger, that still is not a good reason for her to be able to escape.

2007-12-28 19:03:38 · 12 answers · asked by Jacks036 5 in Zoology

2007-12-28 18:58:12 · 4 answers · asked by mathstudent 2 in Mathematics

hello. is there a standard form for a radioactive decay MATH problem?

for example, 226Ra has half life of 1620 yrs. what percent will remain after 100yrs?

thanks for your help

2007-12-28 18:56:27 · 4 answers · asked by Anonymous in Mathematics

do you think i should get this done? I can't imagine even holding him down long enough to draw the blood! any thoughts moms............

2007-12-28 18:55:33 · 1 answers · asked by mna 2 in Medicine

2007-12-28 18:52:48 · 5 answers · asked by mathstudent 2 in Mathematics

Why Are They Placing Cube Rock On The Ground Before They Build A Building?

2007-12-28 18:46:05 · 3 answers · asked by Eugene WTC 1 in Engineering

2007-12-28 18:43:40 · 6 answers · asked by Winterous 3 in Biology

2007-12-28 18:43:06 · 4 answers · asked by Anonymous in Earth Sciences & Geology

2007-12-28 18:41:41 · 12 answers · asked by ghettogal12k 2 in Zoology

2007-12-28 18:29:12 · 10 answers · asked by Maple Sugar 4 in Astronomy & Space

2007-12-28 18:29:04 · 16 answers · asked by giancarlo rapanut 1 in Earth Sciences & Geology

2007-12-28 18:13:43 · 7 answers · asked by Dennis Z 1 in Engineering