Science & Mathematics - 26 November 2006

actuall kitchen?

2006-11-26 09:34:27 · 5 answers · asked by sinajina 1 in Mathematics

I am not understanding this and my text book is at school oops.

Translate the following statement into algebraic equation. Let x represent the number. 6 times a number is 14 more than that number.

2006-11-26 09:33:33 · 8 answers · asked by Jeff D 1 in Mathematics

Im interesting about lenses and i need to buy a:

D = 120mm / F = 1000mm AIR SPACE ACHROMATIC LENS.
or
D = 150mm / F = 1200mm AIR SPACE ACHROMATIC LENS
multi coated which can used for astronomical telescope.
only the objective lenses so please lead me to the sites which i can find it.thanks to all

2006-11-26 09:29:55 · 3 answers · asked by sulaimansy 1 in Astronomy & Space

explain why a syatematic method of naming chemical compounds is necessary?

2006-11-26 09:29:44 · 3 answers · asked by Anonymous in Chemistry

2006-11-26 09:29:32 · 5 answers · asked by zzzzzzzzzzzzzzzzzz 1 in Astronomy & Space

ok i give up! what type of mathematics are they using to come up with these ridiculous amounts of water usage. my water usage every 6 months is between 27,000 - 292,000 gallons of water.in monetary form, thats between $33.00-$649.00. heck of difference wouldnt u say? now i know i dont use 50 gals. of water a day. but lets pretend i do so 50x's 30=1,500 gals a month. 1,500 gals.x's 6 months =9,000 gals 9,000 gals at a rate of $1.25 per thousand gals.= $11.25. so what mathematical system are they using other than arithmetric or trickanametry.if anybody can explain to me and make sense while doing it how they come up with these amounts then please by all means do so.

2006-11-26 09:29:07 · 3 answers · asked by mzswales 2 in Mathematics

a are either alpha hydroxy ketones or alpha hyrdoxy aldehydes
b can react in their cyclic or closed ring forms with Tollen's reagent
c are used in weight reduction plans
d none of these

2006-11-26 09:28:20 · 2 answers · asked by Betty 1 in Chemistry

The cell membrane of red bloood cells is permeable to water but not to sodium chloride, NaCI.
Suppose you have these flasks:

Flask x contains a solution that is 0.5 percent NaCI
Flask Y contains a solution that is 0.9 percent NaCI
Flask z contians a solution that is 1.5 percent

To each flask you add red blood cells, whick contain a solution that is 0.9 percent NaCI

Predict what will happen to the red blood cells in flask x, y, and z

hOw do you know what happens i have no idea what to do
please and thank you for your help!

2006-11-26 09:27:56 · 5 answers · asked by Anonymous in Biology

College algebra

2006-11-26 09:26:13 · 4 answers · asked by Jose T 1 in Mathematics

A student is trying to pass a competency exam. Each time she takes the exam she has a 15% chance of passing, and she is allowed a maximum of three attempts.
Draw a tree diagram to represent her attempts to pass the exam.


How many outcomes does your tree show?
What is the probability she will eventually pass the exam?
What is the probability she will take the exam three times?
What is the expected number of times she will take the exam?
What is the expected number of times she will fail the exam?

2006-11-26 09:25:17 · 2 answers · asked by Anonymous in Mathematics

2006-11-26 09:25:17 · 3 answers · asked by Anonymous in Mathematics

The Reds and the Cubs are playing 5 games. Each game the probability that the Reds win is 0.57, and the probability of the Reds winning is not affected by who has won any previous games.

What is the probability the Reds win all 5 games?
What is the probability the Reds win 4 and lose 1?
What is the probability the Cubs win 4 and lose 1?
What is the probability the Cubs win all 5 games?

2006-11-26 09:24:18 · 2 answers · asked by Anonymous in Mathematics

2006-11-26 09:23:12 · 1 answers · asked by Anonymous in Engineering

Tom and Alice work independently in an attempt to solve a certain problem, i.e. whether one of them solves it does not affect the chances that the other will solve it. The probability that Tom solves it is 0.15 and the probability that Alice solves it is 0.5.

What is the probability that the problem will be solved?


If the problem is solved, what is the probability that Tom solves it?

2006-11-26 09:22:29 · 1 answers · asked by Anonymous in Mathematics

What is the volume, in cubic length units, formed by revolving around the x-axis the area bounded by the curve y = (9 - x^2 )^1/2 and the-x axis.

2006-11-26 09:21:03 · 2 answers · asked by Olivia 4 in Mathematics

2006-11-26 09:20:32 · 5 answers · asked by lori 2 in Mathematics

im trying to fine the number of formula units there are in X grams of barium hydroxide

2006-11-26 09:20:29 · 1 answers · asked by Strong Safety # 18 1 in Chemistry

a. winds
b. running water
c. sea waves
d. gravity
please answer quickly!

2006-11-26 09:19:13 · 2 answers · asked by Anonymous in Earth Sciences & Geology

If Vegan, why do these people insist that humans are not meat eaters? What is the proven basis for such a claim? I eat meat in moderation (especially red meat), but believe people are omnivores. What are the facts, and where can I find the truth?

2006-11-26 09:18:38 · 10 answers · asked by Anonymous in Zoology

here is the word problem please help me figure out what the equation looks like if someone can show me the equation I can figure out the rest.

A principal of $5000 was invested in a savings account for 4 years. If the intrest earned for the period was $400, waht was the intrest rate?

2006-11-26 09:18:26 · 2 answers · asked by Anonymous in Mathematics

the date and time.....pm or am...what month

2006-11-26 09:17:57 · 1 answers · asked by haiston_varnado 1 in Earth Sciences & Geology

If oil consumption increased from 10 units to 20 units over a period of time, was that a 200% increase or a 11.00% increase?

10 x 1.15 equals an increase of 15 percent, right? Then,
10 x 1.99 equals an increase of 99%, right? So, 10 x 2 equals an increase of 100%, right?

But if I divide 20 by 10 then that equals 2 and when I multiple by 100% I get 200%! Like I said, this is confusing me and it shouldn't. What have I forgotten?

2006-11-26 09:17:43 · 6 answers · asked by OU812 5 in Mathematics

A) H3 N(^+) CH2 CO2 H
B) H2 NCH2 CO2-
C) H3 N(^+) CH2 CO2-
D) H2 N CH2 CO2 H



94

2006-11-26 09:17:09 · 4 answers · asked by Michael 1 in Chemistry

A student announced that he had made a sample of a new material that had a density of .82 g/cm^3. How large a sample had he made?

2006-11-26 09:16:45 · 2 answers · asked by ♥Roberta. 5 in Mathematics

2006-11-26 09:12:09 · 31 answers · asked by Anonymous in Zoology

A) NH2 CH2 COO-
B) +NH3 CH2 COO-
C) +NH3 CH2 COOH
D) NH2 CH2 COOH


93

2006-11-26 09:09:43 · 7 answers · asked by Michael 1 in Chemistry

2006-11-26 09:08:46 · 2 answers · asked by prettyme25y 1 in Engineering

how do I find out when meteor showers are going to happen?

2006-11-26 09:08:32 · 10 answers · asked by Sarah C 2 in Astronomy & Space

If a pump is to move 18 tons of water to the top of a 22 storey building in one hour, what must be the theoretical horsepower rating of the pump? (Assume that a storey is ten feet. A horsepower is 550 footpounds per second or 33,000 footpounds per minute.)


4.5 ??? I think.

2006-11-26 09:08:26 · 2 answers · asked by Olivia 4 in Mathematics

A 4.75-g bullet is fired with a velocity of 120.0 m/s toward a 20.0-kg stationary solid block resting on a frictionless surface. What is the change in momentum of the bullet if it is embedded in the block?

2006-11-26 09:07:40 · 3 answers · asked by lindi 2 in Physics