Friday
August 28, 2015

Posts by tim


Total # Posts: 1,017

Health
How might a foundation in medical terminology help you in fulfilling your education and career goals? How might a basic understanding of medical terminology benefit you personally?
May 20, 2008

IT
How does the design phase of the project management life cycle differ in content and importance from the other phases?
May 20, 2008

space
what did edwin hubble knowtice about the direction of travelof distant galaxies that led him to preopose that the universe is expanding?
May 19, 2008

space
thanks
May 19, 2008

space
what force holds the billions of stars in a galaxt together?
May 19, 2008

Health
List and describe one of the challenges facing the U.S. health care system
May 14, 2008

Physics
Suppose a hypothetical radioactive nucleus (Hy) has a half-life of 10 days. If we have 80 gms of the substance at the start of an experiment, how many gms of the substance will remain undecayed after 30 days
May 10, 2008

Algebra
Can someone tell me if I am right? I need to find the equation of a parabola. I am not sure if this is the correct way or if I have the correct answer. Vertex at origin, focus is at (0,3) Equation of parabola vertex (0,0) focus (0,3) focus (h,k+p) (0,0+3) y=0-3 directrix y=-3 ...
April 30, 2008

algebra problem
I need to find the equation of a parabola. I am not sure if this is the correct way or if I have the correct answer. Vertex at origin, focus is at (0,3) Equation of parabola vertex (0,0) focus (0,3) focus (h,k+p) (0,0+3) y=0-3 directrix y=-3 a=(1/4)(p) a=(1/4(-3))=(-1/12) a=(-...
April 30, 2008

Physics
In a diesel engine, the piston compresses air at 302 K to a volume that is 0.0628 of the original volume and a pressure that is 48.2 times the original pressure. What is the temperature of the air after the compression? I have no idea can anyone help?
April 28, 2008

geometry
or you could just notice that the numbers are just double and double 6 to=12
April 27, 2008

physics
ok I used the Ideal gas fromula by saying (48.2)(.0628)/1.38*10^-23)(302K) I got a number N but it does seem to be correct and how would I use N to find the temp. of the air after compression?
April 27, 2008

physics
In a diesel engine, the piston compresses air at 302 K to a volume that is 0.0628 of the original volume and a pressure that is 48.2 times the original pressure. What is the temperature of the air after the compression? Ok I know I have the temputure of the engine but how do i...
April 27, 2008

English
Can someone please give me basic instructions on how to write a 10% summary please.
April 20, 2008

physics
Information: 1. According to the information on the EERE posting, 22% of the U.S. annual electrical energy consumption is for lighting. The amount of energy is 8.2 Quads, (1.0 Quad = 1015 BTU). This is in agreement with the information given in the International Energy Agency...
April 20, 2008

Algebra
Below is my problem with my answers. I don't think this is that tough, but I cannot believe that my ABC answer's are a fraction. Did I do this correctly? Find the unknowns on the right side of the partial fraction. (x+3)/(x^3+64)=(A)/(x+4)+(Bx+C)/(x^2-4x+16) x=0 A= (-x...
April 18, 2008

Math
Can someone check my work and see if I did this correctly? Problem: 9^(x+6)=3^x ln9^(x+6)=ln3^x (x+6)*ln(9)=x*ln(3) (x+6)/x=ln(3)/ln(9) x/x+6/x=0.49999977 1+6/x=0.49999977 6/x=0.49999977-1 6/x=(-0.5000002) x=6/(-0.5000002) x=(-11.9999952) is this correct?
April 13, 2008

Biology
So, my answer is wrong?
April 10, 2008

Biology
A cell with replicated chromosomes. Pick haploid, diploid, or none. Explain why you chose the one you did. My answer:(I am not sure if this is complete enough?) I think it is a diploid, because diploids are copies of each chromosome. A chromosome pair (sperm & egg) is a ...
April 10, 2008

Physics
A 10 kg block of ice has a temperature of -13°C. The pressure is one atmosphere. The block absorbs 4.10 106 J of heat. What is the final temperature of the liquid water?
April 6, 2008

Science
I need to know the "type of visible light?" Is it sunlight?
April 4, 2008

Science
Can someone tell me what they want when they say "type of visible light"? The plants were in a window and received the morning sun. Question: What type of visible light is made available to for plants grown under the clear, red, or blue plastic?
April 4, 2008

Algebra
Does anyone know the significance of the rational zero test? Is it the rational root test? I can find the rational root test, but I don't know where I can find the reason for the rational zero test. Any clue?
March 31, 2008

Algebra
Consider the function h as defined. Find functions f and g so that (f o g)(x)=h(x) h(x)=5/x^2+6
March 29, 2008

Algebra
h(x)=5/x^2+6 I know the answer is: f(x)=x+6, g(x)=5/x^2, but I do not know how to get it. Can someone help me understand it?
March 29, 2008

Math
Is the following function symmetric with respect to the y-axis, symmetric with respect to the x-axis, symmetric with respect to the origin, or none of the above? f(x)=-5x^3+2x I think it is: -3+1=2 This function is symmetric to the y-axis.
March 28, 2008

physics
if it costs 4.5 to 7.5 cents per kilowatt-hour (wind energy) what is the price per kW?
March 26, 2008

Social Studies
I was asked to submit an analysis of my understanding of my own cultural heritage. What questions should I be answering in this paper?
March 25, 2008

Algebra HELP!
Solve the equation identify as an identity, an inconsistent equation or a conditional. My equation is 1-3/2x+7/4 I know the answer is Conditional {-2}, but I cannot figure out how to get it or even where to start.
March 23, 2008

Physics
Where can I find more information about the equation (Power=V^2/load)?
March 23, 2008

Physics
Compare two transmission lines: one at twice the voltage of teh second. Which of the two lines is most advantageous to a utility company? How much is the advantage?
March 23, 2008

Algebra
Solve the equation identify as an identity, an inconsistent equation or a conditional. My equation is 1-3/2x+7/4 I know the answer is Conditional {-2}, but I cannot figure out how to get it or even where to start.
March 22, 2008

Algebra
My equation is 1-3/2x+7/4
March 22, 2008

Algebra
Solve the equation identify as an identity, an inconsistent equation or a conditional I know the answer is Conditional {-2}, but I cannot figure out how to get it or even where to start.
March 22, 2008

Algebra
compound inequality write the solution set using interval notation and graph -7x+1>=15 or 5x+3>=-17 -1 -1 -3 -3 -7x/-7>=14/-7 5x/5>=-20/5 x>=-2 x>=-4 {-2,sideways8) {-4,sideways8) On my graph I have a { at -2 Does someone know how to do this?
March 21, 2008

Algebra Help Radical notation
My problem is: 4 sqrt 81 I know the answer is 3, but I do not know how they got it.
March 15, 2008

Algebra
20x^2-12x+15x-9 20x^2-12x+15x-9 = 20x^2+3x-9 = (4x+3)(5x-3)
March 13, 2008

Algebra
Sorry, I put and = when it should have been a +! Is the one below right? 20x^2-12x+15x-9 20x^2-12x+15x-9 = 20x^2+3x-9 = (4x+3)(5x-3)
March 13, 2008

Algebra
So my second line should be: 20x^2-27x+9=0
March 13, 2008

Algebra
Can someone tell me if I am right? Factor by group 20x^2-12x=15x-9 20x^2+3x+9 (4x+3)(5x-3) answer
March 13, 2008

Physics
(dwrls) If it is $ .20 $/kWh x 10kWh = Would it cost $2.00 per hour?
March 12, 2008

Physics
If it is $ .20 $/kWh x 10kWh = Would it cost $2.00 per hour?
March 12, 2008

Physics
.2 X 10 = $2.00?
March 12, 2008

Physics
Assume the utility rate to be $.20/kWh. What is the cost of purchasing 10kW for 1.0 hour?
March 12, 2008

physics
I'm supposed to design a PV system that could provide an average electric power of 10kW. The average power generation of a solar panel is 20% of the peak power generation. Determine Peak power.
March 12, 2008

algebra
ok, my last question got cut out..here is a link tothe word doc. I cant post an adress cus the site wont let me....go to rapidshare then just paste /files/98328813/Can_u_plz_help_with_these_two_questions.doc and put .html at the end.
March 9, 2008

algebra
thanks for the help, i appreciate it, i was unsure of where iwas going wrong, it was just my brackets i mucked up, thanx.
March 9, 2008

algebra
thanx, actually the site cut off my question, what i tried to type was 2^n x 4^(n+1) / 8^(n-2)
March 9, 2008

algebra
hey i need some help with a couple of questions please..... change all bases to 2 then simplify fully 2^n x 4^n+1 8^n-2 (note that i cannot put the division line thingo in) prove that: a^m/n = n(outside radical sign)a^m (inside radical sign) i dont know if you can understand ...
March 9, 2008

chem
What volume of carbon dioxide is produced at 0 degrees C and 1 atm when 1.6 L of oxygen is used to burn acetylene(C2H2)?
March 9, 2008

chemistry
So if I understand you correctly the numbers I would need to use are the ones found at the end point or the titration equivalence point. My equation would then be: 0.015000M of NaOH x 0.01505L/0.01505L
February 27, 2008

chemistry
I am confused on how to do the last question. Calculate molarity of HCl from the volumes of acid and base at the equivalence point and the molarity of NaOH from the titration curve. (M of Acid)x(v of acid)= (m of base)x(v of added base) M1= 0.50M of NaOH x 0.050L/0.01505L M1= ...
February 27, 2008

Math
PAULA ,SIMON AND RANDY COLLECTED INSECTS FOR THEIR SCIENCE PROJECT. AT THE END OF THE FIRST WEEK PAULA AND RANDY TOGETHER HAD 89 INSECTS, RANDY AND SIMON TOGETHER HAD 80 INSECTS, PAULA AND SIMON HAD TOGETHER HAD 85. HOW MANY DID EACH HAVE ALONE?
February 20, 2008

Math
RANDY AND SIMON TOGETHER HAD 80
February 20, 2008

Math
PAULA ,SIMON AND RANDY COLLECTED INSECTS FOR THEIR SCIENCE PROJECT. AT THE END OF THE FIRST WEEK PAULA AND RANDY TOGETHER HAD 89 INSECTS, RANDY AND SIMON TOGETHER HAD 85 INSECTS. HOW MANY DID EACH HAVE ALONE?
February 20, 2008

arithmetic
7 LITTLE CATS x 4 LEGS = 28 28 X 7 = 196 LITTLE CATS LEGS 7 BIG CATS X 4 LEGS = 28 7 GIRLS X 2 LEGS = 14 BUS DRIVER HAS 2 LEGS 196 + 28 + 14 + 2 = 240
February 20, 2008

Chemistry
alpha -hydroxylbutyric acid (CH3CH2CH(OH)COOH) is this correct?
February 16, 2008

Chemistry
Does anyone know what CH3CH2CH(OH)COOH or C4H9O(C=O)CH3 is?
February 16, 2008

Math
176 is the mean 183 is the median. Not sure If the mean or median is more useful representative of the final examination scores
February 15, 2008

Math
Hi Guido, For your information I am Tim. Not a Babygirl
February 15, 2008

Math
The following scores were recorded on a 200-point final examination:193,185,163,186,192,135,158,174,188,172,168,183,195,165,183. Find the final examination score. Find the median final examination score. Is the mean or median a more useful representative of the final ...
February 15, 2008

Chemistry
HELP! I am struggling on this question. I think I may or may not have it. Why does Methane has a tetrahedral shape? The Valence-shell electon pair repulsion theory applies which predicts that the shape of a molecule by placing the electron pairs on a central atom as far apart ...
February 9, 2008

Chemistry
Can someone tell me if I have this correct, I am leaving something out, or if I need to start over. I am alittle confused about the balanced equation involving a reaction. Write a balanced equation for the reaction of MG with HCI. Mg+HCL---MgCl2=H2 Mg-1 Mg-1 H-1 H-1 Cl-1 Cl-2 ...
February 4, 2008

economics
how to calculate the cpi for a given market basket, with given year and prices?
January 31, 2008

Economics
what does the inflation formula shows?
January 31, 2008

Economics
What is the formula for CPI consumer price index? and how it is use to calculate prices?
January 31, 2008

chemistry
The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in the flask at 257C is 762 mm Hg. If the flask is immersed in a water bath at 400C, the total pressure is 980 mm Hg. The vapor pressure of ethanol at the new temperature is...
January 31, 2008

chemistry
Would it be n2a/V2?
January 29, 2008

lit
For my existentialism project(I have to create a work of art that reflects the absurdity of our meaningless universe, or our reaction to it (pick from the six existentialism themes), I drew the three people fighting, trying to go through a doorway (there is nothing behind the ...
January 21, 2008

lit
Thank you so much GuruBlue for wonderful suggestion. However, I have to depict one of these existential themes: Man is conscious subject, Anxiety, Absurdity, Nothingness, Death, and Alienation.
January 19, 2008

lit
I have to create a work of art that reflects the absurdity of our meaningless universe, or our reaction to it (pick from the six existentialism themes) I was thinking of doing death absurdity. I was going to draw a picture of someone working hard to become a doctor his or her ...
January 19, 2008

math
You should slide your decimal over 2 places so that you get 95.9%
December 20, 2007

Math
the sum of 1 over 6 2 over 3 and 1 over 4. is 13 over 12 right
December 13, 2007

Algebra..please check my work!!
When you divided 340/70 and came up with 4.857, how'd you come up with 8?
December 7, 2007

Algebra..please check my work!!
Yea the answer in the back of the book has it at 9 p.m. ,and yea they do ask for the time when their 340 kilometers apart, interesting, could the book be wrong?lol
December 7, 2007

Algebra..please check my work!!
At 3 p.m., Brunhilde headed north at 30 kilometers per hour. Two hours later Ludwig headed south at 40 kilometers per hour. At what time will they be 340 kilometers apart? I know that the distance from Brunhilde(Db) plus the distance from Ludwig(Dl) is equal to 340, which is ...
December 7, 2007

Math (Grade 12 Data Management)
describe the following sets in words: B u C A u B A n C A u(B n C)
November 28, 2007

philosophy
What fallacies, if any, are present in the following passage? Can you please give reasons for your answer, that is, if you say that a fallacy has been committed, then show where the fallacy occurred, and explain why you think it is a fallacy? Background: In this passage, ...
November 20, 2007

philosophy
What fallacies, if any, are present in the following passage? Can you please give reasons for your answer, that is, if you say that a fallacy has been committed, then show where the fallacy occurred, and explain why you think it is a fallacy? The passage: Canadian military men...
November 20, 2007

philosophy
Can someone please take a look at my question and provide some feedback? Thanks The question: What fallacies, if any, are present in the following passage? Give reasons for your answer, that is, if you say that a fallacy has been committed, then show where the fallacy occurred...
November 18, 2007

AP Physics
Two 10 kilogram boxes are connected by a massless frictionless pulley. The boxes remain st rest with the one on the right hanging vertically and the one on the left 2.0 meters from the bottom of an inclined plane that makes an angle of 60 degrees with the horizontal. The ...
November 4, 2007

chemistry
google it
October 20, 2007

math
i dont understand this question. 2+(9*9)= ?
October 10, 2007

Physics
1. The problem statement, all variables and given/known data A student pulls on a box up an incline of 10 degrees. The student pulls with a force of 180 N directed at 30 degrees above the line of the incline. The box has a mass of 28 kg, and the coefficient of friction between...
October 7, 2007

Math
Thanks
September 29, 2007

Math
How do you figure percentages? Question: If a factory worker is supposed to produce 1000 units an hour but only produces 568 units, what percentage did the worker produce? How do you figure this?
September 29, 2007

Physics
I am in 8th grade. I'm taking advanced classes.
September 13, 2007

Physics
If a vector that is 1 cm long represents a velocity of 10 km/h, what velocity does a vectory 2 cm long drawn to the same scale represent?
September 13, 2007

math
Next 3 in pattern 2/19, 27/76, 46/76, 65/76
September 13, 2007

Business Technology
do you feel tariffs helps us to maintain a favorable balance of trade and balance payments?
September 13, 2007

Geometry
Please Help! How do I work this? The Volume of the box is represented by (x^2+5x+6)(x+5). Find the polynomial that represents the area of the bottom of the box.
September 10, 2007

Geometry
Please Help! How do I work this? The Volume of the box is represented by (x^2+5+6)(x+5). Find the polynomial that represents the area of the bottom of the box.
September 10, 2007

Algebra
Thanks, that is what I did but I was not sure about it.
September 6, 2007

Algebra
How would I work this problem? x^2=-6x
September 6, 2007

Biology
Explain how the lacfk of genetic diversity found in populations of endangered species might hinder their recovery Genetic diversity is needed to cope with environmental changes. With genetic diversity, if there are large changes in the environment, at least some individuals ...
August 6, 2007

Biology
To ensure that the mother will have mature egg cells svailable for in vitro fertilizstion she must be treated with chemicals that regulate her reproductive cycle, Explain what these chemicals thst regulat both the female snd msle reproductive cycles are called I searched ...
August 6, 2007

Maths
How would I find the vertex of the parabola y = x^2 – 2x + 4 ?? could some one explain the method to me ?
June 9, 2007

Algebra
Could someone correct my answers and help with the other problems? 1. Are the following lines parallel, perpendicular, or neither? L1 with equation x – 5y = 10, L2 with equation 5x + y = 5. Answer: Neither (I'm not to sure but i think this is the right answer) 2. ...
May 27, 2007

Macroeconomics
If there is a reduction in output, how will that affect money demand? do some research, then take a shot. Hint: what are the factors that produce a demand for money?
April 28, 2007

Math
What property is illustrated by the equation -8+0=-8? a) distributive b) additive inverse c) communitative d) additive identity additive identity is what?
April 16, 2007

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