Thursday
April 24, 2014

Posts by Anna


Total # Posts: 1,884

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 nee...

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.

Chemistry
what is the formula to change the temperature of K to C

P.E
What are the olympic ideals?

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

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

exponets
(12*2)=24 42-13=29 29+24 = 53

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

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

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

math
1 miles = 1.609344 kilometers 55 X 1.609344 = 88.51392 km

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 cra...

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

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!!

Math
Help needed! round 1.16 to the nearest tenth

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

Spanish
tuya for the first and ducho for the second?

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 m...

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.

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.

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

History
How was Charles II involved with the Royal Society and science in general?

science
is it a comet?

science
What is a Comet Star ? IS it a star or type of Comet?

Science
What is a Comet Star?

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?

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.

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

geometry
the answers 24. i looked at the answers cus i thought it was 12 too

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

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

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?

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

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

chemistry
I GOT A CORRECT ANSWER!!!:):):):):):):::)::):::):):):)::)))::)):):)::)::):):):):)::)::):) THANK YOU!!!!!

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........

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]

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 =

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 =

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 question...

trig
SO my answer would be sqrt 3?

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

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 tan...

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 ...

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

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 ...

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. Mate...

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 i...

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 term...

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

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

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

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 ?

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...

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 An...

History
How did the consumer economy in the late 1800s effect American life?

math
9375

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."

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

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

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

music
Quincey Jones had a berry aneurysm - not a beri aneurysm didn't he?

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

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

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

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.

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

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

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?

Science
What is Arsenic's natural state?

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 =...

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

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

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!

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

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?

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?

geometrey
nevermind my calculator was being stupid. thanks

geometrey
how did u get the 4?

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!

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))

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

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)

Physics help please
Don't know

math
why would you add (8^2 + 15^2)

math
The diagonals of a rhombus have lenghts 16 and 30. Find the perimeter of the rhombus.

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?

French Please Help!!!
Utilisez la forme correcte du verbe indique. Apres le match, nous parlons (parler) de nos activites du dimanche. Les parents de Sarah ne dejeunent (dejeuner) jamais au restaurant le dimanche. Le vendredi soir, mes amis et moi, nous dansons jusqu'a 2 heures du matin! Le soi...

science
if u dont know, then can u look up some websites for me? what happens if u swallow 1 tsp,1 1/2 tsp, and 2 tsp of baking soda mixed with some water? what happens if u swallow 1 tsp,1 1/2 tsp, and 2 tsp of soap mixed with some water? what happens if u swallow 1 tsp,1 1/2 tsp, an...

ap chem
the decomposition of (CH3)2O has a rate constant of 6.8x10^-4 s^-1. the initial pressure is 135 torr, what is the partial pressure after 1420s? i don't have the slightest idea on how to solve this.

microbiology
What would happen if I omitted adding Gram's Iodine in the Gram Stain procedure?

chemistry
1.92g sample of hydrogen peroxide solution generates 37.8mL O2 at 759 torr and 35 C. What is the percent strength of the peroxide solution? how would you solve this problem and which equations would you use?

biology
If you are getting 270X magnification with a 45X objective, what would be the power of the eyepiece?

us history
i'm supposed to find a candidate from this election that is similar to t. roosevelt b/c of similarities in domestic and foreign policies. i've searched all the candidates policies but i can't seem to find one that fits roosevelt's. any suggestions?

world history
how did the peace treaties both follow and violate Wilson principle of self-determination?

world history
describe conditions in Europe after World War I. the total of death, the cost of the war, homes,farm,factories, roads churches had been shelled into rubble.

world history
Describe the conditions in Europe after World War I.

math
the 4X4 square represents 1/4 of a whole shape. create three possible whole shapes. justify how u know that each new shape is one whole.

Chemistry
1. CH3C(CH3)=C(CH3)CH3 2. CH3C(triple bond)CCH(C2H5)CH2CH3 3. CH3CH2C(CH3)2CH2CH2CH(CH3)CH2CH2CH3 4. CH3CH2CH(C2H5)CH(C3H7)CH2CH2CH3 5. CH3CH2CHOHCH2CH2CH2CH2CH3 6. CH3C(CH3)=CHCH2CH3 7. CH2=CHCH2CH2CH(CH3)CH3 8. CH3C(CH3)2CH2CH(CH3)CH(CH3)CH3 9. CH3CH2COOH 10. CH3C(triple bon...

grammar
i think you would not circle lunchroom

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