Sunday
October 26, 2014

Posts by Anna


Total # Posts: 1,997

Science
It would be a physical change because wjat it is made out of stays the same.
September 22, 2008

Math
Will a parabola intersect its directrix sometimes, always, or never?
September 22, 2008

Math
What is the length of the latus rectum of x^2=20y X squared equals twenty Y
September 22, 2008

Math
Find the equation of the parabola with directix y=3 and focus (5,7)?
September 22, 2008

math
10.9186
September 22, 2008

English
Can someone please proof read this? In A Raisin in the Sun, Lena Younger is the nurturing, ethical character who keeps the Younger family in line. First of all, Lena is a caring mother. For instance, when Walter runs away from his family because no one will listen to his ...
September 21, 2008

math
On the plant ZOG,colored coins are used formoney. Suppose 12 white, 9 red, 8 yellow, 4 blue, and 0 green can be exchanged for 2 white, 1 red, 0 yellow, 1 blue ,and 1 green. Also, suppose 1 green = N blue, 1 blue = N yellow, 1 yellow = N red, and 1 red = N white coins. What is ...
September 16, 2008

Chemistry Honors
well put
September 16, 2008

Language Arts
comprehend, curled up, fear
September 16, 2008

math
Given an infinte geometric series, with S=14 and the first term 9, find the ratio between terms.
September 16, 2008

math
1) 13 and -13 2) 5 and -5 I think I could be wrong
September 16, 2008

science
you need to change mL to grams and use conversions
September 16, 2008

Economics
This is what I came up with from my chapter reading, but this subject is confusing me. There is not a direct relationship between Gross Domestic Product and the economic well being. There may be a correlation in some instances, however high Gross Domestic Product does not ...
September 15, 2008

Economics
What is the relationship between the level of Gross Domestic Product and economic well-being. What factors of well-being are missing from the Gross Domestic Product? Is there a point where the Gross Domestic Product could increase to such a high level that economic well-being ...
September 15, 2008

Math- Algebra
The function C(x)=4x+850 closely approximates the cost of daily production run of x picture frames. The number of picture frames produced is represented by the function x(t)=90t, where t is the time in hours since the beginning of the production run. now here's where I ...
September 11, 2008

English
Is this a good topic sentence for a paragraph? In A Raisin in the Sun, Lena Younger is the nurturing, morale character who keeps the Younger family in line and earns your respect in the story.
September 10, 2008

Chemistry
what is the formula to change the temperature of K to C
September 10, 2008

P.E
What are the olympic ideals?
September 10, 2008

Math
For the equation y + 2 = -3/2(x-6) Identify the point found in the equation. Help?? what point are they talking about? =/
September 4, 2008

math
set it up like 75/750=x/100 cross multiply to get 750x=7500 x=10 therefore 10% of the parts were faulty
September 3, 2008

exponets
(12*2)=24 42-13=29 29+24 = 53
September 3, 2008

Math
18/6+3 is equal to 2 because 6+3=9 therefore, 18/9=2 no remainder in this problem.
September 3, 2008

Math
explain why the equation x^2 + y^2=1 does not define y as a function of x.
September 3, 2008

Math
what is the domain, range, and zeros of: f(x)=|x| and h(x)=|x|-2 ?? thank you!
September 3, 2008

math
1 miles = 1.609344 kilometers 55 X 1.609344 = 88.51392 km
September 3, 2008

Brookwood
A 67.0 kg crate rests on a level floor at a shipping dock. The coefficients of static and kinetic friction are .800 and .460 respectively. A) what horizontal pushing force is required to just start the crate moving? B) What horizontal pushing force is required to slide the ...
September 2, 2008

social studies
what was the name of the food that thomas jefferson returned to the u.s from france
August 30, 2008

American History
What was it about post-1763 British policy that would cause colonists in every section to see the disadvantages rather than the advantages of being part of the British empire? any help will be truly appreciated!!
August 22, 2008

Math
Help needed! round 1.16 to the nearest tenth
July 9, 2008

spanish
Pico la cebolla? No, no la piques picas pica piqué Please help me- these will not translate
June 4, 2008

Spanish
tuya for the first and ducho for the second?
June 2, 2008

Spanish
Eres muy generosa prestàndome estas joyas mías - yours nuestras- his suyas- ours tuyas-mine What is the question asking- prestadome wont translate- Also -Generalmente, me _____ por la mañana porque me ayuda a despertarme. Which is generally I ____ in the ...
June 2, 2008

Spanish
Tienes _______ materiales que me prestes para la clase de geometría. algunos algún algunas alguna can someone please help. I cant figure out which of the four choices are supposed to fill the blank.
June 2, 2008

SPANISH - help
Como quieres pagar por eso- What does this say? I have How do you want to pay for..therefore? Its that por eso that is making the sentence just not make sense becuase my book says por eso is thats why, therefore.
May 29, 2008

spansih
Que _____ traigo a Uds.? nos le les me What do ________ bring you? us him they me It doesnt make sense does it?
May 21, 2008

History
How was Charles II involved with the Royal Society and science in general?
May 11, 2008

science
is it a comet?
May 5, 2008

science
What is a Comet Star ? IS it a star or type of Comet?
May 5, 2008

Science
What is a Comet Star?
May 5, 2008

Government
I have many questions: -How many judges does the Supreme Court have? -Who has the right to decide wether a federal, state or local law is constitutional?
May 4, 2008

geometry
An advertisement states that a Roto-Sprinkler can water a cicular region with area 1000 ft^2. Find the diameter of this region to the nearest foot. Use pi = 3.14.
April 27, 2008

geometry
nope. i figured it out. you have to use pi to find the areas of both pizzas and then their ratio is 1:4 so 6*4 = 24
April 27, 2008

geometry
the answers 24. i looked at the answers cus i thought it was 12 too
April 27, 2008

geometry
if 6 oz of dough are needed to make an 8-in. pizza, how much dough will be needed to make a 16-in. pizza of the same thickness? (compare the areas of the pizza tops) i don't know what to do
April 27, 2008

Biology 101
A portion of DNA molecules wound around a spool of histone protein is called a A. Centromere B. Nuclesome C. Spindle D. Furrow E. Cell Cycle
April 20, 2008

trig
y = cos(4x/3 minus 1) amplitude? Period? Two x - intercepts? y-intercept? Domain? Range? Shift along x? Shift along y? Kind of reflection?
April 19, 2008

chemistry
mols acetic acid = 0.024 Lx 0.39 mol/L = 0.00936 mols mols KOH = 0.33 mol/L x 0.017 L = 0.00561 mols pH = +log(0.00936)(0.00561) = -4.279 = 14 + -4.279 =9.7 I am stuck
April 19, 2008

trig
y = sin(-3x + 3) Amplitude = Period = Two x- intercepts = y - intercept = Domain = Range = Shift along x = Shift along y = Kind of reflection =
April 19, 2008

chemistry
I GOT A CORRECT ANSWER!!!:):):):):):):::)::):::):):):)::)))::)):):)::)::):):):):)::)::):) THANK YOU!!!!!
April 19, 2008

chemistry
Pb3(PO4)2 <==> 3Pb^+2 + 2PO4^-3 Since [Pb3(PO4)2] = 2.3 x 10^-9 (Pb^+2) = 6.9 x 10^-9 (PO4^-3)= 4.6 x 10^-9 Ksp = (Pb^+2)^3*(PO4^-3)^2 = (6.9 x 10^-9)^3*(4.6 X 10^-9)^2 =(3.2850 X 10^-25)(2.116 X 10^-17) =6.951 X 10^-42 Please check if my answer is correct. It seems...
April 19, 2008

chemistry
If the concentration of Pb2+ is found to be 2.3 x 10-9 mol/L in a saturated solution of Pb3(PO4)2, what is the Ksp of Pb3(PO4)2 ? This is my work thus far it is as far as I could get: Ksp = [Pb2+] [Pb3(PO4)2] = [2.3 x 10-9 mol/L][Pb3(PO4)2]
April 19, 2008

trig
Can you do one more please? This one is the same as seven of my other practice problems y = sin(-3x + 3) Amplitude = Period = Two x- intercepts = y - intercept = Domain = Range = Shift along x = Shift along y = Kind of reflection =
April 18, 2008

chemistry
What is the percent ionization of a 1.38 mol/L weak acid if its Ka = 2.7 x 10-6? Answer to two (2) decimal places. I know what steps to use but have difficulty applying them to the quesiton Can someone please complete the question for me since there are about 10 other ...
April 18, 2008

trig
SO my answer would be sqrt 3?
April 17, 2008

trig
Is the exact value of sin(pi/3) + cos(pi/6) equal to 1.73?
April 17, 2008

Physics
Suppose you have a perfectly spherical water tank with an inside diameter of 8.6 metres. If the drain at the bottom of the tank can't handle a hydrostatic pressure of more than 50 kilopascals, what is the maximum volume of water, in litres, that can be contained in the ...
April 16, 2008

chemistry
Let me try! Let me try! :) nickel(II)nitrate and zinc nitrate -->Ni|Ni^+2 (??M) ||Zn^+2 (??M)|Zn Iron(II) nitrate and zinc nitrate -->Fe|Fe^+2 (??M) ||Zn^+2 (??M)|Zn Silver nitrate and zinc nitrate -->Ag|Ag^+2 (??M) ||Zn^+2 (??M)|Zn Is this correct? Also, how would I ...
April 15, 2008

chemistry
what would be the cell notation using nickel(II)nitrate and zinc nitrate?
April 15, 2008

chemistry
Let me try! Let me try! :) nickel(II)nitrate and zinc nitrate -->Ni|Ni^+2 (??M) ||Zn^+2 (??M)|Zn Iron(II) nitrate and zinc nitrate -->Fe|Fe^+2 (??M) ||Zn^+2 (??M)|Zn Silver nitrate and zinc nitrate -->Ag|Ag^+2 (??M) ||Zn^+2 (??M)|Zn Is this correct? Also, how would I ...
April 15, 2008

chemistry
Lab: Galvanic Cells Purpose: The purpose of this activity is to demonstrate the design and operation of a galvanic cell used in scientific research and to compare the measured potential difference of that cell to the calculated potential difference using a standard table. ...
April 15, 2008

chemistry
The procedure to this lab is as follows Procedure: Place the zinc nitrate solution into a beaker and connect the zinc electrode so that it is partially submerged in the solution. Place copper (II) nitrate solution into the porous cup and connect a copper electrode so that it ...
April 15, 2008

chemistry
Analysis: Prepare a table to record your observations. The table should include a column for the following: the cell notation of the cell constructed, the voltmeter reading, and the calculated cell potential. Include a column for expressing the accuracy of each result (in ...
April 15, 2008

chemistry
Sorry I mean to say what would be the cell notation using nickel(II)nitrate and zinc nitrate? Thanks
April 15, 2008

chemistry
What would be the cell notation using nickel/nickel (II) nitrate and zinc/zinc nitrate.
April 15, 2008

chemistry
What is the standard cell notation for nickel/nickel (II) nitrate and zinc/zinc nitrate?
April 15, 2008

chemistry
One other quick note. Make sure you want to list these with the strongest reducing agent at the top and the weakest at the bottom; otherwise, you need to reverse the order. So Cl2 Br2 I2 becomes I2 Br2 Cl2 ?
April 15, 2008

chemistry
Reaction 1: Cu (strongest reducing agent) I- Ag Br- (weakest reducing agent) Reaction 2: Zn(strongestreducing agent) Pb Cu Ag(weakest reducing agent) Reaction 3: Cl2 (strongest oxidizing agent) Br2 I2 (wekest oxidizing agent) Using these results, how am I supposed to prepare a...
April 15, 2008

chemistry
sorry the first one didn't post properly Lab: Electrolytic Cells The purpose of this experiment is to test the method of stoichiometry in cells. Materials: balance steel can tin electrode power source wire lead (x2) tin (II) chloride solution (3.25 M) timer large beaker ...
April 15, 2008

History
How did the consumer economy in the late 1800s effect American life?
April 14, 2008

math
9375
April 10, 2008

health unit
all i know is to keep it really simple try not to bore the kids if this is not right i am looking to make a lesson plan also about health unit "what makes us grow."
April 8, 2008

eth125
summary of a current issue between Native American and the federal goverment. Indentify the legislation that you think linked to the issue.
April 6, 2008

In-text citations of websites
what if i look up adolf hitler wat would it be???
April 6, 2008

Lesson Plan on What Makes Us Grow
need some ideal to do my lesson plan about what makes us grow in health unit
April 3, 2008

music
Quincey Jones had a berry aneurysm - not a beri aneurysm didn't he?
April 3, 2008

chemistry
Just checking an answer... I was given Aluminum + Sulfur yields.. & I was to finish & balance & answer the questions. 2Al + 3S => Al2S3 If 1 mole of sulur reacts, how many moles of aluminum sulife are produced? .166 mol Al2S3 How many grams of aluminum sulfide is this? 24.9 g
March 31, 2008

eth125
researching bilingualism in education and politics in the United States find Also find 4 website to support you ariticle
March 31, 2008

physics/chem
Do the following calculations, and write the answers with the correct number of significant figures. (a) 15.45 m 8.21 m
March 31, 2008

Geometry
I don't know how to draw or do this. A plane 5 cm from the center of a sphere intersects the sphere in a circle with diameter of 24 cm. Find the diameter of the sphere.
March 27, 2008

history
write at least one important fact each person listed. Constine: Crusades: John Wycliffe:
March 25, 2008

history
i left my book at school and in study hall i used someone's book and 4gotmy book 4 home work do you think you can help me
March 25, 2008

nursing
Sue is new to working in a hospital kitchen. Her job is to prepare the food trays for the patients. She does not understand spoken or written English. How can her supervisor give her written instructions to better understand the mealtime menu?
March 15, 2008

Science
What is Arsenic's natural state?
March 15, 2008

geometry
The force of gravity pulling on an object down a hill is its weight multiplied by the sine of the angle of elevation of the hill. With how many pounds of force is gravity pulling on a 3000 lb car on a hill will a 3 degree angle of elevation? What i did: SIN3=.0523 .0523*3000...
March 12, 2008

Geometry
yes thats the answer i got drwls thanks the m km messed me up =]
March 12, 2008

Geometry
THATS WHY I COULDN'T GET THE RIGHT ANSWER! i didn't convert the meters! thank you
March 12, 2008

Geometry
A road 1.6 km long rises 400 m. What is the angle of elevation of the road? I don't known which numbers go to which sides. I can do the rest once I can label the triangle. Thanks!
March 12, 2008

Geometry
well this is what i did can someone tell me what i did wrong: tanx= 5/2 since diagonals of a parallelogram bisect each other x= 68 and the other angle would be 22 the angles of the rhombus would be 136 and 44 because the diagonals of a rhombus bisect the angles
March 10, 2008

Geometry
A rhombus has diagonals of length 4 and 10. Find the angles of the rhombus to the nearest degree. would the angles be 136 and 44?
March 10, 2008

geometrey
sorry one more question. so... a road climbs at an 8 degree angle with the horizontal. what is the grade of the road? the answer would be 5?
March 10, 2008

geometrey
nevermind my calculator was being stupid. thanks
March 10, 2008

geometrey
how did u get the 4?
March 10, 2008

geometrey
The grade of a road is 7%. What angle does the road make with the horizontal? I'm confused!! What is the grade of a road? Thanks for the help!
March 10, 2008

Math
one last one, so sorry! thanks so much! how would I test the series for convergence or divergence? the series from n=1 to infinity of 1/(arctan(2n))
March 6, 2008

Math
How would I test this series for convergence of divergence? the series from n=0 to infinity of sin(2^(-n))
March 6, 2008

Math
how would I test this series for convergence of divergence? the series from n=0 to infinity of (n^2+1)/(n^3+1)
March 6, 2008

Physics help please
Don't know
March 5, 2008

math
why would you add (8^2 + 15^2)
February 26, 2008

math
The diagonals of a rhombus have lenghts 16 and 30. Find the perimeter of the rhombus.
February 26, 2008

essay (the american dream)
i need to write an essay and make three points about how the american dream is unattainable. so far i've got: advertising, problems with upward mobility, and that the dream is always changing. any other suggestions?
February 24, 2008

Pages: <<Prev | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | Next>>

Search
Members