Sunday

April 20, 2014

April 20, 2014

Total # Posts: 1,164

**Math **

Surface area and I was wrong it ='s 462.0

**Math **

How do I find the dimensions of a piece of wrapping paper used to wrap the box? The dimensions are 15in, 9in, 4in. The SA equals 270. I dont know to make it into an answer like 40 in. BY 10in

**french**

what does nous avons bu un cafe mean?x

**Chemistry- Solubility Curves**

If 50 grams of water saturated with potassium chlorate at 23*C is slowly evaporated to dryness, how many grams of the dry salt will be recovered? I know that I should know this.. But it has 50 grams of water instead of 100. ): Please, someone tell me how to do this?

**organic chemistry**

how do you increase the yield of triphenylmethanol in a grignard reaction?

**organic chemistry**

how do you increase the yield of triphenylmethanol in a grignard reaction?

**chemistry**

I am doing stoicheometry and I need help. Is there anyone who knows about it? It's in my chemistry class. HELP! I am in tears and cannot figure this out.

**chemistry**

if you started with 2.154g of aluminum, how many grams of aluminum oxide would you get?

**chemistry**

how many grams of magnesium is needed to produce 2.154g of magnesium nitrate?

**UW Lacrosse**

if you started with 2.154grams of al, how much of product of aluminum oxide would you expect?

**Quick Math Check**

Graph x+4y=16 using slope. y= -1/4x+4 the slope would be -1/4 and the y intercept is 4?

**6th grade math**

No because similar objects are congruent. Congruent figures are the same size and the same shape.

**brother:mother::fly:**

This isn't a question but those of you who are having troubles with brother:mother::fly: the answer is spry. It's a word but I didn't know it was a word until my parents gave me the answer LOL but this was a very handy site considering the fact I had the same one f...

**calculus**

Find the volume of the solid formed by rotating the region enclosed by y=e^(3x)+2, y=0, x=0, and x=.2 about the y-axis

**calculus**

Find the volume of the solid formed by rotating the region enclosed by y=e^(3x)+2, y=0, x=0, and x=.2 about the y-axis

**calculus**

Find the volume of the solid formed by rotating the region enclosed by y=e^(3x)+2, y=0, x=0, and x=.2 about the y-axis

**social studies**

Approximately what percentage of Th Colonial population were patriots, neutral, loyalists?

**geography**

can you give me examples of countries in stage 2(early expanding) and 3(late expanding) in the demographic transition cycle ???? thank you rachel

**chemistry**

CH3OH(g) CO(g) + 2 H2(g) H = +90.7 kJ . Calculate the amount of heat transferred when 35.0 g of CH3OH(g) are decomposed by this reaction at constant pressure

**Algebra**

i need help with graphing inequalities ex: y < 4 + x

**statistics**

Im a fat cheatercheater

**math**

A basketball team has won 50 games of 75 played. The team still has 45 games to play. How many of the remaining games must the team win in order to win 60% of all games played during the season?

**lit**

what word best describes ha mercedes and charles? sensitive frightened prepared or inexperienced

**Social Studies**

What Florida County did the seminole indians fight over against the american colonists? A) Seminole B) Highland C) Dixie D) Osceola

**algebra 1**

What is the third term of a recursive sequence that follows the pattern x - 7 and has a first term x = 100? May somebody explain the answer and how they got it? Thank you so much

**To: Writeacher**

Ok thanks for the update I'll be back on here later to check.

**For all teachers**

Does anyone know if Sra will be on here today because I really need her to check my french.

**French**

Could you check these thanks Directions: Answer as indicated, using the pronoun en. Part 1 1. Tu as de l'aspirine? Answer: Oui, j'en ai. 2. Tu as du sirop? Answer: Non, je n'en ai pas. 3. Tu as des médicatments? Answer: Non, je n'en ai pas. 4. Tu as de l...

**diagramming a sentence**

is book old

**science**

explain why certain bugs can walk on water

**Sciece**

What is the pronunciation rebus for nitrogen?

**English**

You could say this: I cheat because I use a website on the internet to get the answers.

**math**

The lowest score the student could make on the last paper and still get an A is 97%. So all the test scores would be: 92, 83, 88, and 97.

**English 2 honors quick question**

I have a final in this class tomorrow and I need a free online practice test. Somethings we have learned our poetry terms, (sonnet, lyrical, haiku, simile, metaphor, hyberbole etc..) We have also read the story Antigone, Pit and the Pendulum, Witness for the prosecution. Thanks:)

**Biology quick please**

I need a practice biology test to practice for my final exam which is tomorrow. I'm a tenth grader and the things we learned were mitosis, meiosis, production of gametes, human reproduction, cell devision, mendelian genetics, probablitity of inheriting traits, dna, and wha...

**Calc./ Physics**

when apollo 15 astronaut David Scott dropped a hammer and a feather on the moon to demostrate that in a vacuum all bodies fall with the same (constant) acceleration, he droppes them from 4 feet above the lunar surface. the television shows them fallen more slowly than on earth...

**history**

Well, either way, was it true that if people gave names then they would be let off the hook?

**history**

I know that during the McCarthy Era, people accused as being communists were asked to give names of other communists. I was wondering if it was true that if accused people gave names then they would be let off the hook? Thanks.

**French**

Could you please check this also thanks Directions: L'Alsace, vous connaissez? Complete with the correct form of connaître or savoir. Karen et Melissa vont en France. Elles vont visiter l'Alsace. Elles ------------------(connaissent) assez bien Paris, mais elles ...

**French**

could you please check these thanks Directions: Connaître et savoir: Rewrite the following sentence with each pronoun and make all necessary changes. Use this model for each sentence Je connais Marie et je sais qu'elle est française. 1. Il --------------------...

**World History quick question**

What kind of picture/symbol would you draw for principle of intervention?

**hellllp physics**

A solid cylinder rolls along the floor. What is the ratio of it's translational kinetic energy to its rotational kinetic energy about an axis parallel to its length and through its center of mass?

**Physics help**

A solid cylinder rolls along the floor. What is the ratio of it's translational kinetic energy to its rotational kinetic energy about an axis parallel to its length and through its center of mass?

**Wolrd Geography**

Possible answer: The acculturation that brings negative effects might involve Country A imposing its language, religion(s), methods of education, system of government, social customs, etc. upon Country B, despite the will of the people to retain their own cultural traditions a...

**MATH**

Could someone please double check me? ------------------------------------------ A Developer works 40 hours per week at $30 per hour. He or she earns : 40 hours x $30.00 per hour = $1200.00 - per week. The four developers earn : 40 hours x $1200.00 = $4800.00 - per week. ~~~~~...

**momentum**

i tried that, but i'm not getting the answer right i did disk momentum=Iw and boy momentum=m*rpm*2pi/60 then i set those two equal to each other and then changed the w back to rpm, but i'm not getting the right answer.

**momentum**

A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 230 kg and a radius of 1.6 m. A 38- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.15rpm. If the...

**Physics**

can somebody explain how to do this problem without changing it to radians? the final answer has to be in rates per minute

**Physics**

i tried the technique that was posted on there, but the answer was wrong. and my answer is supposed to be in RPM.

**Physics**

A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 240 kg and a radius of 1.4 m. A 33- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.20rpm. If the...

**u.s. history**

thanks for the help

**u.s. history**

Why did Northerners oppose slavery? Thanks.

**Physics**

A pulley with a rotational interia of 4.4*10^-3 kg m^2 about its axle and a radius of 6 cm is acted on by a force applied tangentially at its rim. The force magnitude varies in time as F=0.32t + 0.27t^2 where F is in newtons if t is given in seconds. The pulley is initially at...

**spanish**

thanks :)

**spanish**

Hi, can someone please tell me the english translations of these words? thanks no gastar, suscribirse, and transferir

**General Physics**

You use the formula: 1/2mv^2= 1/2kA^2

**algebra-linear equations**

The combined cost of one advance ticket and one same-day ticket to a show was $50. It is known that 35 tickets were sold in advance and 25 the same day, for total receipts of $1600 . What was the price of each kind of ticket?

**Algebra**

6a-3b

**Physics**

Please Help ! A child throws a snowball at a tree and it sticks to the tree. Does this motion defy the Law of Conservation of Momentum? Explain. The Law of Conservation of Energy states: "If there is no net force acting on a system of objects, the total momentum in that s...

**Physics**

If a 40 kg brick and a 400 kg brick each dropped from 1 m above a trampoline, find the lowest position of each brick. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. So, I used mg(h+x)=1/2 k x^2 then solved for x in each case. ** ...

**math**

Cost= $10.00 for the belt $33.00 for the socks ($3.00 x 11) $3.00 for shipping 10+33+3= $ __________

**Physics**

you lost be. k= 12 000 N/m where are you getting 1 or 10

**Physics**

and how do i solve for x when it is on oth sides of the eq'n?

**Physics**

pe= potential energy?

**Physics**

okay, but what is the start of that eq'n? It looks similar to Eg=Ek ?

**Physics**

If a 40 kg brick and a 400 kg brick each dropped from 1 m above a trampoline, find the lowest position of each brick. Assume the trampoline is a simple spring obeying Hooke's law with a k value of 12 000 N/m. I know i must use Fs= kx, but where do I start? Do i find Fg at ...

**science**

A truck is stopped at a stoplight. When the light turns green, the truck accelerates at 2.2 m/s2. At the same instant, a car passes the truck going 12 m/s. Where and when does the truck catch up with the car?

**Physics**

ok i figured out what I did wrong for the (a). I also found (b). But I cannot seem to get the right answer for the kinetic energy lost in the collision.

**Physics**

I used the equation m1vf-m1vi=-m2vf+m2vi and got a velocity of 4.77m/s but that answer is incorrect. Am I not using the right formula for question (a)?

**Physics**

A barge with mass 1.7×105 kg is proceeding down river at 6.1 m/s in heavy fog when it collides broadside with a barge heading directly across the river. The second barge has mass 2.83×105 kg and was moving at 4.2 m/s. Immediately after impact, the second barge find...

**Maths**

start by multiplying by the lowest common denominator (in this case 4), simplify, then solve. 4(x/2) + 4(x/4)= 1 4/2=2 and 4/4 =1, therefore: 2x + x = 1 3x = 1 (3x)/3 = 1/3 x= 1/3

**Physics **

A pilot of mass 65 kg in a jet aircraft makes a complete vertical circle in mid-air. The vertical circle has a radius of 1.70 km at a constant speed of 215 m/s. Determine the force of the seat on the pilot at (a) the bottom of the loop and (b) the top of the loop. (Note that a...

**math**

wait, number two is wtong.. sorry!! 2. 2x-y=1 plug in 2 and 3.. 2(2)-3=1 4-3=1 1=1 so yes, (2,3) is the solution to the problem ((:

**math**

3x+4y=18 you just plug in 2 and 3.. 3(2)+4(3)=18 6+12=18 18=18 so yes, (2,3) is the solution for the first problem. 2x-y=1 again, plug in 2 and 3.. 2(2)-1=1 4-1=1 3=1 so no, it's not the solution for the problem hope I helped!

**French**

Can you please check these also Directions: Rewrite each sentence in the negative. 1. Il dit quelque chose à son copain. Answer: Non, il ne dit rien à son copain. 2. Et son copain écrit quelque chose. Answer: Et son copain n'écrit rien. 3. Il vo...

**French**

Can you check these... Directions: Répondez que non Part I 1. Ta grand-mère travaille encore? Answer: Ma grand-mère ne travaille plus. 2. Ta soeur joue encore a foot? Answer: Ma soeur ne joue plus au foot. 3. Tu écris encore à ton amie Marie?...

**English-interpreting quote**

What does this quote mean? "In the end, our society will be defined not only by what we create, but by what we refuse to destroy." I'm supposed to keep in mind the depetion of our ocean resources..

**algebra[please check]**

in questions 1 and 2, write an equation of the line in slope-intercept form. 1. the slope is -4/3; the y-intercept is -2. 2. the slope is 0; the y-intercept is -5. my answers: 1.y=-4/3-2 2. y=-5 ______________________ write an equation of the line that passes through the point...

**Physics**

Suppose that in the same Atwood setup another string is attached to the bottom of m1 and a constant force f is applied, retarding the upward motion of m1. If m1 = 5.30 kg and m2 = 10.60 kg, what value of f will reduce the acceleration of the system by 50%? thank you!

**algebra**

you are driving at a speed of 55 miles per hour to your sister's house. at 1pm, you are 150 miles from her house. write an equation that models the distance from you sister's house in terms of the number of hours since 1pm.

**Physics**

A 45 kg trunk is pushed 7.8 m at constant speed up a 30° incline by a constant horizontal force. The coefficient of kinetic friction between the trunk and the incline is 0.23. a)Calculate the work done by the applied horizontal force. b)Calculate the work done by the weigh...

**algebra 2**

2x+y=5 in slope form

**algebra 2**

ghngh

**Chemistry**

the heat of combustion of propane is -5.47MJ/mol. there is 1.50kg of propane available to burn. how many litres of water could be heated from 18.0 degrees Celcius to 63.0 degrees Celcius using the heat from the burning propane. assume that all heat lost by the propane reaction...

**algebra**

Write an equation in slope-intercept form of the line that passes through the given points: (-1/2,-1), (3,5/2). Also, write an equation in point-slope form of the line that passes through the given points: (6,-3), (-1,9). <soo sick of these.. please help!> thanks!

**algebra**

okay.. i get it i misunderstood your post.. thanks a lott xxx (=

**algebra**

I'm feeling horrible for not being able to do this. [I am the old rachel :(] could you explain it again? <ashamed>

**algebra**

write the equations in standard form of the horizontal and vertical lines that pass through the point 1. (2,4) 2. (-5, 4)

**algebra**

[<equationing (which isn't a word!)> hehe] thanks for the help! :)

**algebra**

write a linear equation to model the situation. you have walked 4 miles on a trail. you continue to walk at a rate of 3 miles per hour for 5 hours. please tell me how to do this!! thanks!

**algebra**

Thsnks again!! (=

**algebra**

1. write an equation of the line that passes through the point and has the given slope. write the equation in slope-intercept form. a. (3,2), m=1/2 b. (-3,2), m=1/2 _______ answers: a. y=1/2x + 1/2 b. y=1/2x + 7/2 ______________________________________ 2. write an equation of ...

**algebra 1**

write an equation in slope-intercept form of the line that passes through the points: 1. (-5,3), (4,-5) 2. (-1/2,-1), (3,9/2) _____ my answers: 1. y=-8/9x-5 2. y=3/7x+5/2 please check.. thnx

**world history**

compare in north america blacks and whites compare in latin america/carribean natives and foriegners and compare people or higher and lower status and compare free people to enslaved people

**Math**

When you walk around a polygon, at each vertex you need to turn either right (clockwise) or left (counterclockwise). A turn to the left is measured by a positive number of degrees and a turn to the right by a negative number of degrees. Find the sum of the measures of the turn...

**social studies**

what is a delta plain

**science**

dont know

**geometry**

a. If BC = 2x + 1, CD = 3x - 4 and BD = 22, find the value of x. b. Using the value of x, find BC and CD.

**4th grade math**

thirty six buses would be needed to carry the passengers and crew off three 747 jumbo gets. heres the question: how many buses fo one jet two jets. and how many jets for 180 buses and 252 buses and how many jets would be needed to carry the passengers on 264 buses

**French**

Thank you so much for all your help.

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