Tuesday
September 30, 2014

Posts by anna


Total # Posts: 1,975

chemistry
If 0.1200g of sodium carbonate is dissolved in 50 mL of water and titrated with 0.1000 M HCl, how many mL of HCl will be required to reach the second endpoint? CO3^-2 + H^+1 --> HCO3^-1 HCO3^-1,+ H^+1 --> H2CO3
February 22, 2011

Physics please help!!
a clothes washer starts from rest and spins up with an angular accceleration of 10/rad/s^2. Determine the angle through which the washer has moved afer 6 seconds.
February 22, 2011

precalc
If is vector a ia 7 units long, the magnitude of vector b is 10 units and the cosine of the angle between the two vectors is -0.3 when they are placed tail-to-tail, what does the inner product of vector a and vector b equal?
February 21, 2011

chemistry
To what volume should you dilute 126 ml of an 7.90 M CuCl2 solution so that 49.5 ml of the diluted solution contains 5.9 g CuCl2?
February 20, 2011

French-Simple question
Im trying to find out what each person is studying. Every person in my text has a bubble over their heads, and in that bubble is a picture such as...one person had a bubble picture of a microscope over their heads, so that would mean that they are studing biology. What course/...
February 16, 2011

French
Est-ce que tu voyages beaucoup? Ou? Oui je Voyage beaucoup à Vancouver. Est-ce que tu aimes prendre des photos? No je n'aime pas prendre des photos. Est-ce qu'il y a une fete dans ta ville? Quand? Oui, il ya un festival dans ma ville et c'est le jour du ...
February 16, 2011

Math
Assume you work at a company where you are paid hourly. You are paid $8.60 per hour for regular time (less than or equal to forty hours) and time and a half for overtime hours up to fifty hours in one week. If you are asked to work fifty or more hours in one week you are paid ...
February 16, 2011

English
I'm writing for my opinion but I can't figure out what to write.
February 14, 2011

English
Can anyone give me details or tell me what else should I talk/ more information on something. I ran out of ideas/ thoughts. This is what I got. What media would you use for your communication skills to advertise? I would used the television for my communication skills to ...
February 14, 2011

math (calculua)
find the volume of the solid of revolution generated by rotating the graph of y=5lnx about the y-axis between y=0 and y=15
February 13, 2011

math (calculua)
find the volume of the solid of revolution generated by rotating the graph of y=5lnx about the y-axis between y=0 and y=15
February 13, 2011

math (calculua)
find the volume of the solid of revolution generated by rotating the graph of y=5lnx about the y-axis between y=0 and y=15
February 13, 2011

British Literature
Is the following statement a malapropism? "Your reason,dear venom, give thy reason".
February 12, 2011

social studies
My second grader is writing an essay on the blending of the American Culture. Help please!
February 10, 2011

spelling
thank you
February 7, 2011

spelling
what is the easiest definition for menace?
February 7, 2011

Language Arts
read
February 7, 2011

Algebra
3.5
February 6, 2011

Calculus
let f(x)=x*e^x For what value of x is the slope of the line tangent to the graph of function f at [x,f(x)] equal to 1/2?
February 3, 2011

Calculus
thank you!
February 3, 2011

Calculus
what is the slope of the tangent to the graph of f(x)= ln [cos(x)] at x= pi/6 ???
February 3, 2011

calculus
what is the integral of ( x^2 / (x+1)dx
February 1, 2011

english
I need to compare and contrast the themes of Andrew Marvell's "To His Coy Mistress" and Christopher Marlowe's "The Passionate Shepherd to His Love." Where do I start?
February 1, 2011

algebra
use substitution method/linear combinations to solve then tell how many solutions they have -7x+7y=7 and 2x-2y=-18
January 30, 2011

6th grade math
Thanks! :)
January 30, 2011

6th grade math
That means 4 times 1 is 4 and then multiply by 2 and so the answer is 8?
January 30, 2011

6th grade math
I still don't get it.
January 30, 2011

6th grade math
What is 4 divided by n is 1/2?
January 30, 2011

6th grade math
Thanks.
January 30, 2011

6th grade math
ms. Sue, 1/4 times 1/2 is 1/8. Then what should I do?
January 30, 2011

6th grade math
Anyone know?
January 30, 2011

6th grade math
1/4 times 1/2 is 1/8. Then what should I do?
January 30, 2011

6th grade math
Thanks again!
January 30, 2011

6th grade math
Is it 4/1*(1/2)=2/1=2?
January 30, 2011

6th grade math
Thanks Ms. Sue, I also have one more question. What is 1/2= w/4?
January 30, 2011

6th grade math
How did you get c=1/5 when you have 5c=2/3 divided by 2/3?
January 30, 2011

Chemistry
Substance A has a density of 4.0 g/mL and substance B has a density of 2.0 g/mL. If we have equal-mass samples of each, which has the greatest volume?
January 23, 2011

Chemistry
Substance A has a density of 4.0 g/mL and substance B has a density of 2.0 g/mL. If we have equal-mass samples of each, which has the greatest volume?
January 23, 2011

British Literature
I need to identify the figure of speech in this saying:"thy mind is an opal." I think it is a metaphor. Am I correct?
January 23, 2011

British Literature
I need help in identifying the figure of speech in the following statement: "Your reason, dear venom, give thy reason." Any ideas?
January 23, 2011

precalc
Find sec x if sin x = -0.6 and cos x = 0.8.
January 21, 2011

english
m too old- is this sentence correct or wrong
January 21, 2011

Biology
OK, I give up. No where do I find a clear yes or no to this question. Fossil evidence indicates that humans have not undergone many anatomical changes over the last 200,000 years. From what I have read it seems like they have. Am I correct?
January 20, 2011

Biology
How do the heart, capilaries, arteries and veins work to distribute materials through the body?
January 19, 2011

British Literature
I did read the sparknotes info but all I could come up with was Roman Catholics, sin, Satan. I can't figure out a way to really make this connect to the story. Any help would be appreciated.
January 19, 2011

Physics
In an arcade game a 0.087 kg disk is shot across a frictionless horizontal surface by com- pressing it against a spring and releasing it. If the spring has a spring constant of 163 N/m and is compressed from its equi- librium position by 4 cm, find the speed with which the ...
January 18, 2011

Physics
A 180 g arrow is shot straight up into the air with a speed of 17 m/s. It reaches a maximum height of 13.7449 m. Find the initial kinetic energy. The accel- eration of gravity is 9.8 m/s2 . Answer in units of J.
January 18, 2011

Geometry
Thank You guys soo much :))
January 15, 2011

Geometry
How many degrees, like a triangle equals 180 degrees
January 15, 2011

Geometry
How much does a four sided polygon equal??
January 15, 2011

Geometry
Explain why you cannot use AAA to prove two triangles congruent.
January 15, 2011

Geometry
Thank You
January 15, 2011

Geometry
If two game boards have the same area, are the game boards congruent? Explain your answer
January 15, 2011

english
What does the dragon in The faerie Queene represent?
January 15, 2011

MAATH
Rearrange the terms of the equations fo form Ax + By = C I really get confused about general form, like how do I do it, I dont understand at all. x+3y = -1 2x+4y-12 = 0
January 13, 2011

History
What is absolution?? In detail Please :)
January 13, 2011

MaTH
Rearrange the terms of the equations fo form Ax + By = C I really get confused about general form, like how do I do it, I dont understand at all. x+3y = -1 2x+4y-12 = 0
January 13, 2011

History
what is the roman civil law and what time period was it in?? and what was protestant ethic and what time period was that in??
January 12, 2011

English
How is the gerund used in this sentence?- His least favorite activity is playing scales
January 12, 2011

special populations
Which has a greater influence on a person’s health: individual choices and actions (micro perspective) or community policies and resource availability (macro perspective)? Discuss three reasons why you selected one over the other.
January 7, 2011

algebra2
determine the domain and range:{(x,y)|y2=5x}
January 6, 2011

Science
Which of the following plants is nonvascular? a. ferns b. mosses c. gymnosperms d. club mosses is "b" correct?
January 6, 2011

Science
Which of the following plants is nonvascular? a. ferns b. mosses c. gymnosperms d. club mosses is "b" correct?
January 6, 2011

Science
Imagine an environment that is very dry and receives a lot of sunlight. Water is found deep below the soil. Which of the four groups of plants could survive in this environment? Explain your answer.
January 6, 2011

Algebra I (Math)
okay theirs 2 parts to this problem: (by the way i already did part 1) 1. construct a table of the areas of triangles all of which have bases 6 in. long,but whose altitude are respectively 2 in.,6in.,10 in.,and 14 in. draw a graph to represent given in this table.(this is ...
January 5, 2011

physics
consider 4 masses mA=1kg, mB=2kg, mC=3kg, mD=4kg, placed at the vertices of a square ABCD of side 4cm. Specify the position of G the center of mass of the system{A,B,C,D}. determine the position of G. Thank you :)
January 3, 2011

math
could you please help me with this problem
January 1, 2011

math
Fadi is in a boat 3 kilometers away from the nearest point A at the sea shore.5kilometers away from A is the home of fadi. knowing that he can row 6km/hr and run 10km/hr.the objective of this exercise is to find the position of point B on the sea shore where fadi should land ...
January 1, 2011

chemistry
A quantity of 0.020 mole of a gas initially at 0.050 L and 20 degrees Celsius undergoes a constant-temperature expansion until its volume is 0.59 L. Calculate the work done (in joules) by the the gas if it expands (b) pressure of 0.20 atm. (C) If gas in (b) is allowed to ...
December 28, 2010

math
Ok thank you so much :)
December 21, 2010

math
Hi, Can someone please help me with my math. The distance between Capeton and Jonesville is 80 miles. Thescale on the map is 0.75in : 10 miles. How far apart are the cities on the map? A. 6in B. 60in C. 600in D. 1067in Thank you :)
December 21, 2010

Math Problem Solving
Oh im sorry i did this problem wrong. Ms.sue did it correct :) Sorry again.
December 21, 2010

Math Problem Solving
6n+8n-2n+3/2 6n+8n=14n-2n=12n+3/2 answer: 12n+3/2
December 21, 2010

chemistry
8. If x grams of S are needed to obtain 0.4 grams of SO3, how many grams of SO2 can be obtained from the same amount of S? (A) 0.32 g (B) 0.62 g (C) 0.40 g (D) 0.16 g (E) Can not be calculated from the given data. I am not sure how to set up this problem. I calculate the ...
December 20, 2010

Psychology
As you enter your Grandma Thorndike's house you ears being to hurt as you notice she is once again playing her favorite "Contry Music" album. You soon get caught up in the christmas festivities...talking with family..eating...and playing psychological trivia. The...
December 19, 2010

Medical Insurance
A hospital received a reimbursement rejection from the fiscal intermediary for two outpatient procedures that were performed the same day. Who generated the rejection?
December 17, 2010

helping abused children
what happens in most cases of sexual abuse a-the abuser is removed immediatley from the home b-the abuser is prosecuted in court c-nothing can be done until evidence is found d-the abuser receive institutuional counseling as a precautionary measure
December 16, 2010

helping abused children
the stubborn child law of 1646 by the state of massachusetts permits parents to do what
December 16, 2010

math
Jim divied -2 by an integer and his result was between -1 and 0 Which integur could have been the divisor
December 16, 2010

math 116
-2[38(-56-50) -2[38-106]
December 16, 2010

Algebra
How do you find the Horizontal Asymptote of y= (x+2)/(x-6)?
December 14, 2010

Geometry
Thank You
December 14, 2010

Geometry
Ya its correct
December 14, 2010

Geometry
The m<A is 10 more than 4 times its supplement. Find the m<A. I dont understand how to solve this problem.. Thank You for your help.
December 14, 2010

AlgebrAlgebra-Mathmate or BobPursley or Reiny
Thank you-I understand what you're saying-I really appreciate the help
December 14, 2010

AlgebrAlgebra-Mathmate or BobPursley or Reiny
I had asked a question earlier and bob pursley nicely answered it but I do have a question concerning it still- perhaps someone could clarify it- f(x) = logx is a logarthmic function. Bob Pursley said it could be because the base is implied but my question is the way it is ...
December 14, 2010

Business Communication
You are a technical writer in a large company who is working on a training manual to help new users learn the company's computer system. Employees will use your manual in training seminars taught by your company's trainers. The manual will also serve as an on-the-job ...
December 14, 2010

Business Communication
I put A as the answer
December 14, 2010

Business Communication
A. decision makers or opinion molders in an organization. B. everyone who receives it. C. individuals with the highest status in an organization. D. people who represent the opinions or attitudes of the majority.
December 14, 2010

Business Communication
The primary audience for your message is made up of
December 14, 2010

Algebra-Mathmate or Reiny or Dr. Bob, please check
Thank you-could you look at my new post-I just needed clarification about f(x) = logx you said this would be true but doesn't it need parentheses or a separation between log and x for this to be correct? Thank you
December 14, 2010

Algebra-Bob Pursley please check-Mathmate or Reiny or Dr. Bob, please check
I just noticed something-I had asked about if f(x) = 1/x is an exponential function and I think you rewrote it as f(x) = x^-1. Therefore, f(x) = 1/x is NOT an exponential function, correct?
December 14, 2010

Algebra-Mathmate or Reiny or Dr. Bob, please check
Thank you for the explanations- I appreciate it
December 14, 2010

Algebra-Bob Pursley orMathmate or Reiny or Dr. Bob, please check
Could one of you please check when you have time. Thank you
December 14, 2010

Algebra-Mathmate or Reiny or Dr. Bob, please check
I have two short questions which I think I know the answer-could you please check? If I write log(b)x - 2log(b)y as a single logarithm it would be log(b) x/y^2, correct? If not please help and Is the function f(x) = 1/x a exponential function -I think it would be because it ...
December 14, 2010

Algebra-Please check
When you have time,Could someone please check this morning the two problems I listed in the first post along with this one The function f(x) = logx is a logarthmic function-I think this is false because it should be written as log(then a number)x, correct Thank you very much
December 14, 2010

Algebra
I have two short questions which I think I know the answer-could you please check? If I write log(b)x - 2log(b)y as a single logarithm it would be log(b) x/y^2, correct? If not please help and Is the function f(x) = 1/x a exponential function -I think it would be because it ...
December 14, 2010

Algebra-Reiny please explain this
Reiny, thank you-I get it now thanks again
December 13, 2010

Algebra-Reiny please explain this
Hi Reiny, I posted this problem earlier and you responded but I don't get the reasoning- The problem was -2log8(x+1) = -8 you said multiply by -2 and then you put log8(x+1)=4(wasn't that dividing by -2) log8(x+1)^2 = 8 (how did you get to the power of 2 and =4 became =...
December 13, 2010

Algebra-Could Mathmate or Reiny or Dr. Bob look at this if you have time
Please give me some direction for the above problem Thank you
December 13, 2010

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