Saturday

April 19, 2014

April 19, 2014

Total # Posts: 1,882

**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

**grammar**

i think you would not circle lunchroom

**French**

cet ete means this summer. l'ete means the summer. any time you see l'- it means the. so when you are talking about 'the summer' use l'ete. (for example: pendent l'ete- during THE summer) whenever you are saying 'this summer' use cet ete. (for e...

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