Monday

December 22, 2014

December 22, 2014

Total # Posts: 860

**Physics**

A 75 kg box slides down a 25 degree ramp with an acceleration of 3.60 meters per second squared. Find the coefficient of kenetic friction between the box and the ramp. What acceleration would a 175 kg box have on this ramp?
*November 3, 2010*

**math**

35/105 =16.5 the answer is 5.5
*November 3, 2010*

**7th grade math**

thank you Ms.Sue
*November 3, 2010*

**7th grade math**

am i right
*November 3, 2010*

**7th grade math**

Is it 16 inches
*November 3, 2010*

**7th grade math**

yes ido
*November 3, 2010*

**7th grade math**

Ruth makes a scale drawing of her room.She uses the scale 3/2in:1ft.In the drawing, the dimensions of her room are 18in by 24in.What are the actual dimensions of her room
*November 3, 2010*

**Algebra**

Any help?
*November 2, 2010*

**Algebra**

Factorise completely: 6x^2+10x-5= and 6x^2+8x-3=
*November 2, 2010*

**religion**

why did saint juan diego become a saint?how?
*October 31, 2010*

**algebra 1 b**

The sides of a triangle have measures of x, x, and y, and the perimeter of the triangle is 46. The measure y is 4 centimeters longer than the measure x. Write the solution for this as an ordered pair.
*October 26, 2010*

**Physics**

Since air resistance was ignored, both of them will hit the ground at the same time.
*October 26, 2010*

**Physics**

If 2.0 J of work is done in raising 180 g apple how is it lifted? Please if you answer, do it step by step. Thanks in advance.
*October 24, 2010*

**Physics**

A) v=u+at
*October 23, 2010*

**english**

What term describes the vantage point from which the story is told?
*October 22, 2010*

**Statistics**

As standard deviation increases, samples size _____________ to achieve a specified level of confidence. A. Increases B. Decreases C. Remains the same
*October 21, 2010*

**algebra I**

5x +7= 4y-6 solve the equivalent equation for x thank you
*October 19, 2010*

**algebra I**

9n +12=6n +54 what is n and how do you get it
*October 19, 2010*

**Algebra II**

Complete the box to illustrate the product (x+8)(x+7) __x__________8____ | | | ? | 7x | ? | | | | |__________| ______| | | | | | | x | x^2 | ? | | | | |_________|________| Help me please! I do not know where to even begin.
*October 18, 2010*

**Math - Geometry**

Please help! Need to find the 6th and nth terms in this sequence - and solve for the rule or process. here's the sequence: 1,3,9,27,81 What is the process or formula to get the nth term in the sequence. Thanks!
*October 17, 2010*

**Biology**

Half
*October 17, 2010*

**Quadratic and exponential sequences**

I need to set up a chart to find the 6th and nth terms in this sequence - and soleve for the rule or process. here's the sequence: 1,3,9,27,81 Thanks!
*October 17, 2010*

**Physics**

A 25 kg chain initially at rest on a horizontal floor requires a 365 N horizontal force to set it in motion. Once the chair is in motion, a 327 N horizontal force keeps it moving at a constant velocity. a. Find the coefficient of static friction between the chain and floor. b...
*October 17, 2010*

**chemistry**

Thank you very much ... extremely helpful and very generous of you to volunteer your time and knowledge for this project.
*October 16, 2010*

**chemistry**

also the hcl is liquid form.
*October 16, 2010*

**chemistry**

the solution is 31.45% by weight. I am trying to find out how much of the HCL i use as a base and how much water I need to add to make 500 ml or more at 0.10 m HCL
*October 16, 2010*

**chemistry**

I need 500 ml of 0.10 m HCL solution. I have a 3.785 liter container of HCL at 31.45% concentration. How do I acheive my objective?
*October 16, 2010*

**algebra**

GRAPH EACH EQUATION AND IDENIFY THE Y-INTERCEPT 6X-3Y=9 PLEASE SHOW STEPS IF POSSIBLE.
*October 13, 2010*

**Algebra II**

i am trying to post the table but its not posting correctly.
*October 13, 2010*

**Algebra II**

Hat size head circum head circum 7 3/8 23 1/5 59 ? 22 4/5 ?
*October 13, 2010*

**Algebra II**

Hat size are determined by the measuring the circumference of the head in either inches or centimeters. Use ratio and proportion to complete the following table. Hat size head circum head circum (~1/2 inch) (~centimeter) 7 3/8 23 1/5 59 ? 22 4/5 ? (For the first answer box ...
*October 13, 2010*

**Algebra**

x^2+6x-44/x+9 X squared plus six X minus 44 divided by X+9. Having a hard time with this problem. I need someone to help me step by step or give me some pointers please? Thank you.
*October 11, 2010*

**Chemistry**

In a car engine, gasoline (represented by C8H18) does not burn completely, and some CO forms along with CO2 and H2O. If 5 percent of the gasoline forms CO, A)What is the ratio of CO2 to CO molecules in the exhaust? B)What is the mass ratio of CO2 to CO? C)What percentage of ...
*October 11, 2010*

**Communication**

Résumés must be free from typos because employers: A will not hire anyone who cannot type. B assume that someone who is careless with a résumé would be careless on the job. C believe that typos are evidence of alcohol or substance abuse. D will ...
*October 10, 2010*

**Communication**

Which of the following sentences advocates an idea in a positive way? A "I can't see anyone buying the product at that price." B "The unit is way overpriced." C "Customers can get a better deal anywhere else." D "We can corner the market ...
*October 10, 2010*

**Communication**

In response to a compliment on his excellent oral presentation, a Japanese business executive replies, "No, it wasn't very good." Which of the following is the MOST likely explanation for this response? A He thought the person giving the compliment was his ...
*October 10, 2010*

**communication**

Thank you Ms Sue! :)
*October 10, 2010*

**communication**

I meant A sorry.
*October 10, 2010*

**communication**

Hmm. so the obvious answer would be B then?
*October 10, 2010*

**communication**

In order to appear more authoritative in a speaking situation, you should: A lower the pitch of your voice. B raise the pitch of your voice. C use a sing-song pattern. D avoid stressing syllables. I think it is B but I am not sure.
*October 10, 2010*

**Chemistry**

What is the number of grams of Hydrogen in 5.45 x 10^22 molecules NH3?
*October 9, 2010*

**communication**

Which of the following is NOT a question you need to answer to choose a persuasive strategy? A What do you want readers to do? B What points will the audience agree with? C How strong a case can you make? D What kind of persuasion does your organization value? I am completely ...
*October 7, 2010*

**communication**

You are writing to ask for money for a soup kitchen. Which of the following will BEST avoid having the letter look like a selfish plea for money? A Creating psychological description B Writing thank-you letters to donors C Asking for help at the kitchen and other forms of aid ...
*October 7, 2010*

**calculus**

SinØ = opp/hyp opp is x hyp is 10 SinØ = x/10 10SinØ = x Sin (π/3) = 1/2 10 * 1/2 = 5 Answer: 5 ft/rad
*October 7, 2010*

**math**

im not sure at this point
*October 6, 2010*

**math**

yes thats the way it wes worded
*October 6, 2010*

**math**

this all the info that was given.
*October 6, 2010*

**math**

A 270 in pipe is cut into twp pieces. One piece is twice eight time the length of the other. Find the lengths of the pieces.
*October 6, 2010*

**Organic Chem**

Your answer is correct.
*October 5, 2010*

**Geographyand socity**

I needed help with this too.. haha
*October 5, 2010*

**7th grade**

we need the answers
*September 29, 2010*

**Chem**

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?
*September 28, 2010*

**Chem**

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?
*September 28, 2010*

**Chem**

4NH3(g) + 3O2(g) -> 2N2 + 6H20, K=10^80 @ certain temp initially, all the reactants and products have concentrations equal to 12M. At equilibrium, what is the approximate concentration of ammonia?
*September 28, 2010*

**Chemistry**

A newly discovered giant planet has an aver- age radius 12 times that of the Earth and a mass 722 times that of the Earth. Calculate the ratio of the new planet’s den- sity to the Earth’s density.
*September 14, 2010*

**math **

x^6 + 5x^3 – 24) ÷ (x^3 – 3)
*September 12, 2010*

**Chemistry**

Can i please get a formula to calculate the concentration of an acid when it reacts with a standard solution? ( preferably 0.1 M NaOH and viniger )
*August 5, 2010*

**math**

The angle of depression of two points on opposite sides of a building are on the same horizontal level with the foot of the buiding are 58 and 49 respectively from the top of the building. If the building is 38m tall, calculate the distance between the points.
*July 15, 2010*

**Calculus II**

1) Compute the indefinite integral: integral 2x ln(x^2 - 8x + 18) dx 2) Note that x^4 + 1 = (x^4 + 2x^2 + 1) = (x^2 + 1)^2 - (sqrt2x)^2 ... use this trick to compute the following indefinite integral as an elementary function (with exact coefficients). integral 1 / (x^4 + 2x^2...
*June 13, 2010*

**Calculus**

If two people are taking a dog on a walk and have two leashes. One is at 18 degrees with a force of 23lbs and the other is at 15 degrees with 27lbs, how hard is the dog pulling if it holds them at a stand still?
*June 3, 2010*

**Algebra**

Would someone please verify my answer for the solution set of (x+20)(x -10)(x+11)>0, {x|(-20,-11)<x<(10,infinity sign)}
*May 30, 2010*

**Algebra**

Would someone please verify my answer for the solution set of (x+20)(x -10)(x+11)>0, {x|(-20,-11)<x<(10, ‡)}
*May 30, 2010*

**Algebra**

I posted this before but could not understand the answer. How do I write the solution set of: {x| } for (x+20)(x -10)(x+11)>0
*May 30, 2010*

**Algebra**

I really appreciate your help. I am still a little confused, when I add -36 +9 -99 I get 126. I don’t understand the -72.
*May 30, 2010*

**Algebra**

For w-4/w-9 – w+1/w+9 + w-99/w^2 – 81 = ,I get: 14w-126/w^2-81 or 14w-14/w^2-9. Would that be correct?
*May 30, 2010*

**Algebra**

Sorry, this is making me crazy. Thank you for pointing out my error. w-4/w-9 – w+1/w+9 + w-99/w^2 – 81 =
*May 30, 2010*

**Algebra**

Thank you for answering (x+20)(x -10)(x+11)>0. How do I write the solution set of {x| }
*May 30, 2010*

**Algebra**

Can anyone help with this last question? 8v/v^2-49 + v/v-7
*May 30, 2010*

**algebra**

I don’t really understand this and it is on a test; w-4/w-9 – w+1/w+9 + w-99/w^2 – 18 = Can anyone give me a hint...please
*May 29, 2010*

**algebra**

OK what you say make sense but I am unsure of the solution sets of {x| }
*May 29, 2010*

**algebra**

Can anyone please help with this inequality,(x+20)(x-10)(x+11)>0 The solution set is {x| }
*May 29, 2010*

**Math**

How do I do 6y/5x + 3y/10?
*May 24, 2010*

**Math**

What is 2x + 6y = 12? I need to find y, the slope, and the y-intercept. Please help!
*May 24, 2010*

**math**

Two fractions equivalent to 2/5: 4/10 and 6/15. Two fractions equivalent to 7/11: 14/22 and 21/33 Two fractions equivalent to 150/325: 300/650 and 450/975. To solve this I multiplied each fraction by a number (e.g. 2/2) For 2/5, I did 2/5 x 2/2 = 4/10. I hope I helped!
*May 24, 2010*

**english**

what are the adjectives in this sentence. it was a wild, dangerous ride down the rapids in an old canoe.
*May 18, 2010*

**4th grade**

That is not a sentence.
*May 16, 2010*

**algebra**

1. x2+5x+6 2. x2+7x+12
*May 7, 2010*

**math**

Nth expression for the following:6,11,17,24,32.....
*May 5, 2010*

**calculus**

Let g(x)= integraton (top 3x, bottom 2) e^t^4 dt. Find the value of g'(0).
*May 2, 2010*

**math**

Hi, this is a worksheet problem so i do not have the answer to it. It came with a pic though. Here is the link. Thanks. img121.imageshack.us/i/dsc01000vu.jpg/
*May 2, 2010*

**english**

extrapolated
*April 27, 2010*

**english**

after studying the clues, sherlock holmes _____________ that the butler had committed the murder. reconciled endeavored extrapolated aquiesced infused
*April 27, 2010*

**english**

1 A 2 E
*April 27, 2010*

**english**

1. B 2. C
*April 27, 2010*

**english**

1) lassitude 2) D
*April 27, 2010*

**english**

1) Due to the _____ of the fire, the residents of surrounding homes were evacuated. (A) magnitude (B) consensus (C) laaitude (D) deportment (E) simulation 2) Sophia lives a(an) _________nieghborhood; many people have a similar_________- (A) prosperous.....occupation (B) ...
*April 27, 2010*

**english**

thank you
*April 27, 2010*

**english**

The boys ____ climbingup the ______ cliff,but decided it was too dangerous. (A) asecended....lethal (B) contemplated....sinister (C) endured....mundane (D) simulated....dreary (E) declined....obscure
*April 27, 2010*

**Physics**

Yes, it will. use equation: minimum thickness= wavelength(nm)/(4*index of refraction) so for your example it would be t=600/(4*1.25) which comes to 120nm. for the second part, use eq. 2t= ((m*wavelength)/index of refraction) so again 2t=((1*600))/1.44) and t= 208.3nm
*April 22, 2010*

**science**

what is the oort and were is it located
*April 21, 2010*

**chemistry**

65.2g
*April 10, 2010*

**spanish**

Form complete sentence using the imperfect: Cada semana/yo/asistir a/escuela primaria
*April 8, 2010*

**MATH**

You shouldn't search help on PROMYs questions...
*April 2, 2010*

**6th grade Language Arts**

That's the word that I'm not allowed to use. So If I use compromise in the second blank, I don't know what to use in the first blank.
*March 30, 2010*

**6th grade Language Arts**

that's what I thought, but what about the first blank?
*March 30, 2010*

**6th grade Language Arts**

We had a great difference of _______, we finally came (together) on the (opinion) that something needed to change so we made a _______ that each person could live with. I need to fill in the blanks that mean the same as the words in parenthisis. This is a stem homework project...
*March 30, 2010*

**Math**

Bob and his dad visited the hardware store on Saturday. They observed the following transactions: Mr. Harris bought 4 for $0.50, Mrs. Clarke bought 21 for $1.00, Mr. Montaro bought 1,134 for $2.00, and Ms. Park bought 450 for $1.50. What were they buying?
*March 25, 2010*

**math**

2x^3(x^2+2x)^-1/2 -(x^2+2x)^1/2 / x^2 the whole numerator is over x^2
*March 22, 2010*

**Advice on IB subjects**

Hey there all! Im desperate for some advice on my subjects at IB! I have decided on chem bio higher and english spanish standard. I am battling between Maths and Economics higher! I really like Maths and had decided to take it but now that I told people my options everyones ...
*March 21, 2010*

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