Sunday
December 21, 2014

Posts by ANGELA


Total # Posts: 1,399

philosophy
I am to write a two page dialogue between Socrates and a person. I was thinking about writing about domestic violence. What do you think about that subject. Should I use statistics and numbers regarding this issue.
March 28, 2013

math
in triangle ABC, AB = BC and ABC = 42. find ACB
March 24, 2013

Math
Do you think regular or irregular polygons are used more frequently in the design of objects and buildings in the world???
March 18, 2013

Chemistry
2C2H6+7O2=4CO2+6H2O how many moles of H2O are produced when a mixture of 0.427 moles of O2 and 0.150 moles of C2H6 is burned, iv already found moles of H2O for them separately.
March 17, 2013

university chemistry
many cola soft drinks contain caffeine and benzoic acid (pKa 4.2), explain how you would isolate separately pure caffeine and benzoic acid from an aqueous solution containing both compounds
March 12, 2013

university chemistry
this is for a chemistry laboratory experiment called "how much caffeine is there in instant coffee" What should be the pH of the aqueous layer to extract caffeine? There are three aqueous solutions that you may choose from. A. pH >14, using 2.5 M NaOH (aq) B. pH 1...
March 12, 2013

math
if my average is 88 percent. and if another grade is added, is it possible that my average would be the same
March 11, 2013

physics
Suppose that the pressure of an ideal gas mixture remains constant at 1700 Pa (1 Pa = 1 N/m2) and the temperature is increased from 400K to 800K. How much work does the gas do to the surroundings during expansion?
March 1, 2013

Math
for x i got -3.57 is this correct?
February 22, 2013

Math
yes that is what i meant. i think i am still confused cause when i do that i got (7x+29)/(2x^2+6x-20) which i dont think is right
February 22, 2013

Math
Solve for x 5/x-2 + 2/x+5 = 4/x^2+3x-10 not sure i know how to do this
February 22, 2013

non permissable values
that makes much more sense thank you i couldnt figure it out so a restriction is someting that it cannot be divded or multiplied from right?
February 22, 2013

ENG1511
My cat likes to play
February 15, 2013

ENG1511
My cat is like to play
February 15, 2013

Math
what is the area of a rectangle with 6 in inlenth and 7inches wide.
February 12, 2013

Biochemistry
1. Given the following equation: Glycerol-3-phosphate glycerol + Pi Go’ = -9.7 kJ/mol At equilibrium the concentrations of both glycerol and inorganic phosphate are 1 mM. Under these conditions, calculate the final concentration of glycerol-3-phosphate. Remember to ...
February 11, 2013

bio(updated) Devron
Please help me with these questions. I have taken out some of the questions that i was a 100% sure of. I just need you to check for me the ones i'm not too postive about. I would really appreaciate the help! Thank you in advance. 1. The phenomenon of autocatalysis is ...
February 9, 2013

biology (confused)
Hi Will someone please check my answers. I went to biology-forums(dot)com and registered but i really don't know how to post my questions and i really need help (with the questions). Thanks in advance. 1. Which process involves both passive and active transport? a.)...
February 9, 2013

biology help!!
Please check my answers. I did my best. 1. Which process involves both passive and active transport? a.)facilitated diffusion<---- b.)cotransport c.)bulk transport d.)transport through electrogenic pumps e.)osmosis 2. How does the liver in a healthy body respond to elevated...
February 9, 2013

biology
Please check my answers. I did my best. 1. Which process involves both passive and active transport? a.)facilitated diffusion<---- b.)cotransport c.)bulk transport d.)transport through electrogenic pumps e.)osmosis 2. How does the liver in a healthy body respond to elevated...
February 9, 2013

biology
1. The phenomenon of autocatalysis is involved in a positive feedback loop that activates certain digestive enzymes. Which likely results when the digestive enzymes are activated? a.)the suppression of other enzymes b.)additional enzyme activation c.)a chemical that blocks ...
February 8, 2013

biology
Thank you soo much. Will you be willing to help me with some more questions?
February 8, 2013

biology
Will someone please check my answers? 1. Which process results in an individual inheriting the incorrect number of chromosomes? a.)mutation b.)nondisjunction<-- c.)segregation error d.)duplication error e.)linkage 2. Which data in Hershey and Chase's experiment ...
February 8, 2013

philosophy
I am to write a eight to ten page research paper based upon a current event/ pressing social issue that is relevant in my community. I want to write about crime but crime is not very prevalent in my town until recently we had like 4 murders in the last month. Do you think I ...
February 8, 2013

philosophy
I am suppose to identify some of the features and values you associate with a just society. I want to write about healthcare but i don't know where to start can someone please help.
February 7, 2013

CHEMISTRY URGENT!
how do yu se up the equation for this Q.??
February 3, 2013

philosophy
I am suppose to write a paper on ethical dilemma.I was thinking about writing about a woman who works in retail sales and a customer gives her to much change. I was thinking that would be an ethical dilemma. I was wondering what anybody thinks. I really don't know where to...
January 30, 2013

American History
What, in your estimation, were the key principles of the Progressive Movement?
January 17, 2013

business law
Abbott was orphaned at the age of five. For the next fifteen years his material needs were met by his Uncle Barton. On his 13th birthday, Abbot wrote Uncle Barton and promes to pay him $100 per mont as long as his Uncle lived. Abbott nver made any payments. Uncle Barton died ...
December 12, 2012

statistics
2. A test measuring basic math skills in adults is normally distributed, with mean = 20 and standard deviation = 7. Calculate the z score and T score for each of the following test scores: - X = 11
December 12, 2012

Chemistry
At constant volume, the heat combustion of a particular compound is -3447.0 KJ/mol. When 1.205 g of this compound (molar mass = 119.94 g/mol) was burned in a bomb calorimeter, the temperature of the calorimeter (including its contents) rose by 5.007 degrees C. What is the heat...
December 9, 2012

Chemistry
Consider the molecular level representation of a gas There are: (a picture) 6 blue dots 5 orange dots 3 green dots (i think they are the diatomic one, because it is pairs) If the partial pressure of the diatomic gas is .750, what is the total temperature? I am totally lost, ...
December 9, 2012

Statistics
Z= x-u/o So, 296-300/3 = -.77 Look at a standard normal distribution table .2794 is the value from the table. If you draw the curve, you will know that the area is to the left. So, you subtract: .5000- .2794 =.2206 is the probability. I am not sure about the second part.
December 9, 2012

Chemistry
If the heat from burning 6.000 g of C6H6 2C6H6(l) + 15O2(g) -> 12CO2(g) + 6H2O(l) + 6542 kJ is added to 5691 g of water at 21 °C, what is the final temperature of the water? Please tell me what I am doing wrong: 293,551= 5691*4.2*(Tf-21C) 293551= 23902.2Tf - 50946.2 ...
December 9, 2012

grammer
What is the simple subject in this sentence Who cares if she's in 3rd grade and I'm just in 1st.
December 6, 2012

statistics
Give and interpret the 95% confidence interval for the hours of sleep a student gets. (7,8,4,5,8,10,7,8,5,6,7,4,7,8,9,8,7,6,7,8)
December 5, 2012

Algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9. The material is considered defective if the breaking strength is less than 163 pounds. What is the probability that a single, randomly selected piece ...
December 3, 2012

Math
What is the value of n in the equation (2/3)n =(4/9)
December 2, 2012

computers
what part of a presentation slowws you to add charecter data?
November 30, 2012

math
how do you divide 1.0 divided by 0.02
November 27, 2012

math
26997.18 = PV(1.10)^10 26997.18/(1.10)^10 = PV 26997.18/2.59374 = PV 10408.59 =PV
November 27, 2012

math
(1+r)^365 =(1.07) 1+r = 1.07^1/365 1+r =1.00018538 r = 0.0018538 r = .185% daily (1+r)^12 = 1.06 1+r = (1.06)^1/12 1+r = 1.004867551 r = 0.004867551 r = .486% monthly
November 27, 2012

Math
(1+r)^12 = 1.03 1+r = (1.03)^1/12 1+r = 1.00246627 r = 0.00246627 r % = .247 % monthly
November 23, 2012

Physics
A roller-coaster car speeds down a hill past point A where R1 = 10.4 m and then rolls up a hill past point B where R2 = 15.6 m, as shown below. R1 and 2 are radii (a) The car has a speed of 21.0 m/s at point A. if the track exerts a normal force on the car of 2.05 multiplied ...
November 1, 2012

English
How can I make this sentence better for my objective on my resume. To obtain an administrative assistant position where my professional skills will be used to the fullest.
October 31, 2012

Physics
A 4.3 g dart is fired into a block of wood with a mass of 22.6 g. The wood block is initially at rest on a 1.4 m tall post. After the collision, the wood block and dart land 3.1 m from the base of the post. Find the initial speed of the dart.
October 24, 2012

Physics
A 750 N student stands in the middle of a frozen pond having a radius of 5.4 m. He is unable to get to the other side because of a lack of friction between his shoes and the ice. To overcome this difficulty, he throws his 2.0 kg physics textbook horizontally toward the north ...
October 24, 2012

Physics
A 4.3 g dart is fired into a block of wood with a mass of 22.6 g. The wood block is initially at rest on a 1.4 m tall post. After the collision, the wood block and dart land 3.1 m from the base of the post. Find the initial speed of the dart.
October 24, 2012

texas southern university
A quantity of gas in a piston cylinder has a volume of 0.544 m3 and a pressure of 200 Pa. The piston compresses the gas to 0.126 m3 in an isothermal (constant-temperature) process. What is the final pressure of the gas? ??__Pa
October 24, 2012

texas southern university
A periodic wave has a frequency of 8.9 Hz. What is the wave period? ??__s
October 24, 2012

Physics
A railroad car with a mass of 1.86 104 kg moving at 2.80 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.40 m/s. (a) What is the speed of the three joined cars after the ...
October 22, 2012

Physics
oh nvm
October 22, 2012

Physics
are you sure the 0.138 shouldn't be .0138?? and the answer be 1.7e-6??
October 22, 2012

Physics
A 5.9 g coin sliding to the right at 27.6 cm/s makes an elastic head-on collision with a 17.7 g coin that is initially at rest. After the collision, the 5.9 g coin moves to the left at 13.8 cm/s. (a) Find the final velocity of the other coin. (b) Find the amount of kinetic ...
October 22, 2012

Physics
Thanks Elena!! CASEY, you da finest.
October 22, 2012

Physics
A 1.08 kg skateboard is coasting along the pavement at a speed of 4.60 m/s when a 1.19 kg cat drops from a tree vertically downward onto the skateboard. What is the speed of the skateboard-cat combination?
October 22, 2012

French 2
Which is an example of a superlative sentence? Answer Le français est fantastique. Le français est plus fantastique que l'anglais. Le français est la plus fantastique de tous les langues.
October 21, 2012

Physics
A 0.17 kg baseball moving at +20.80 m/s is slowed to a stop by a catcher who exerts a constant force of -376 N. How long does it take this force to stop the ball? How far does the ball travel before stopping?
October 18, 2012

statistics
random sample of n = 16 scores is selected from a normal distribution with a mean of μ = 50 and standard deviation of σ = 10. a. what is the probability that the sample mean will have a value between 45 and 55? b. what is the probability that the sample mean will ...
October 15, 2012

Physics
Those were all wrong, I don't get it.
October 14, 2012

Physics
A ball of mass 522 g starts at rest and slides down a frictionless track, as shown below. It leaves the track horizontally, striking the ground a distance x = 0.81 m from the end of the track after falling a vertical distance h2 = 1.03 m from the end of the track. (a) At what...
October 14, 2012

Physics
Thank you!!
October 14, 2012

Physics
Starting from rest, a 11.50 kg suitcase slides 3.18 m down a frictionless ramp inclined at 40° from the floor. The suitcase then slides an additional 5.22 m along the floor before coming to a stop. (a) Determine the suitcase's speed at the bottom of the ramp. (b) ...
October 14, 2012

Physics
A skier of mass 74.5 kg is pulled up a slope by a motor-driven cable. How much work is required to pull the skier 55 m up a 31° slope (assumed to be frictionless) at a constant speed of 2.0 m/s?
October 14, 2012

Physics
A 0.230 kg block on a vertical spring with spring constant of 4.25e3 N/m is pushed downward, compressing the spring 0.048 m. When released, the block leaves the spring and travels upward vertically. How high does it rise above the point of release?
October 14, 2012

Econ
Just a suggestion: Since there is a price floor on wheat (meaning that wheat cannot be sold under a certain price), wheat would be more expensive. In turn the people who make Healthy Wheat Cookies would produce less and would raise the price of Healthy Wheat Cookies, to make ...
October 13, 2012

random math queastion
√x^2+2 Is this possible as is?
October 13, 2012

Physics
An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.
October 11, 2012

Physics
Nevermind!! I got it! Thank you so much
October 11, 2012

Physics
I got 571, but it says it's wrong!!
October 11, 2012

Physics
An 52.0 N box of clothes is pulled 7.3 m up a 30.0° ramp by a force of 103 N that points along the ramp. If the coefficient of kinetic friction between the box and the ramp is 0.22, calculate the change in the box's kinetic energy.
October 11, 2012

Calculus
when I plug in the ordered pair (.25, 2)I get a zero in the denominator, was I doing that wrong?
October 8, 2012

Calculus
arcsinxy = 2/3 arctan4x find dy/dx at the point (1/4, 2)
October 8, 2012

math
name a possible set of scores for 15 students that would result in an average of 66%
October 7, 2012

colleGe math
y=-2|x| actually I'm sorry I left some of the details out. It says to let x=-3,-2,-1,0,1,2 and 3. Not sure what to make of this..
September 29, 2012

colleGe math
y=-2|-3| was the intended equation
September 29, 2012

colleGe math
y=-2|x| Will someone please explain how I'm supposed to graph this?
September 29, 2012

collEge math
x^3-27
September 29, 2012

colLege math
(2x-1)(x^2-4x+3)
September 29, 2012

coLlege math
√6x * √3x^2
September 29, 2012

coLlege math
It is done like this. :√6x
September 29, 2012

coLlege math
√6x*√3x^2
September 29, 2012

cOllege math
Any chance for help on this?
September 29, 2012

cOllege math
14x^2+5-[7(x^2-2)+4]
September 29, 2012

College math
(-30a^14b^8/10a^17b^-2)totally lost on me??
September 29, 2012

Statistics
AJ DAVIS is a department store chain, which has many credit customers and wants to find out more information about these customers. A sample of 50 credit customers is selected with data collected on the following five variables: LOCATION (Rural, Urban, Suburban) INCOME (in $1,...
September 16, 2012

finance
Knight has a property tax base with an appraised value consisting of $142,000,000 of taxable real property and $78,000,000 of taxable personal property. The assessment ratio is 50%. Exemptions for the elderly reduce assessed value by $3,000,000. The city has a planned budget ...
September 9, 2012

Physics
40 miles per hour
September 6, 2012

Finance
Mr. Brown is in the 10% federal income tax bracket and wants to invest $8,000 in interest-earning assets. Mr. Black is in the 35% bracket and wants to invest $15,000. The current rate on a typical high-quality tax-exempt municipal bond is 5% and on a similar quality corporate ...
September 2, 2012

math
Can you write it in a sentence
August 14, 2012

math
Would this be a arithmetic sequence
August 14, 2012

math
how do you put it in a sequence
August 14, 2012

math
What is x?
August 14, 2012

math
a new automobile depreciated 20% of its value after 1 year. if the automobile is priced at $18,000 after 1 year, what was its cost when it was new?
August 14, 2012

ap government
what is confederation ?
August 11, 2012

Chemistry
Complete the following chemical reaction. Label any precipitate that forms. KCl(aq) + AgNO3 (aq) ¨KNO3 (aq)+AgCl(s)
August 7, 2012

geometry
One thousand raffle tickets are sold for 4.00 each. one grand prize of $800 and two consolation prizes of $ 100 each will be awarded. Jeremy purchases one ticket. Find his expected value.
July 24, 2012

geometry
The National Association for Women in Scienc asked recent high school grads if they had taken certain classes. of those surveyed, 95 said they had taken physics, 108 said they had taken chemistry and 12 said they had taken both. nine said they had taken neither. How many ...
July 23, 2012

gemetry
An identification code is to consist of two letters followed by six digits. How many different codes if repetition is permitted.
July 18, 2012

geometry
If the probability of seeing moose in a day in a certain region of Alaska is 0.74, what is the probability of not seeing any moose in a day there?
July 16, 2012

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