Monday

March 30, 2015

March 30, 2015

Total # Posts: 1,012

**Math**

Formula for area of a triangle is: A = (B x H) / 2 A = (14 x 5.5) / 2 A = ? cm^2 Plug it into a calculator and do the math.
*February 25, 2013*

**math**

15x^2 + 100x + 125 First I would factor out a 5 because I know 5 can go into 15, 100 and 125. 5 (3x^2 + 20x + 25) Now I would factor what is in the brackets. I used the quadratic equation and got the following solutions for x: x= -5 or x= -5/3 Therefore, the final factored ...
*February 25, 2013*

**math**

Times refer to multiplication so whats is 45 multiplied by 2? Can you answer that?
*February 25, 2013*

**math**

So Jay ate 2/15 of 5/8. 'Of' in math refers to multiplication so i think you would simply do the following: 2/15 * 5/8 = 10/120 = 1/12 I'm not 100% sure if I did this correctly. I think someone should verify this.
*February 25, 2013*

**math**

2x = 368 - 4 2x = 364 2x/2 = 364/2 x = 182
*February 25, 2013*

**math**

I think you are correct.
*February 25, 2013*

**English - The Lovely Bones**

I asked this question yesterday but no one has answered thus far so I thought I'd try asking again: If anyone has read The Lovely Bones novel could you please explain 2 things to me. 1) Is Ruth Connors able to see the dead? When she moves to NYC she writes about all the ...
*February 25, 2013*

**math**

Refer to question you posted just before this one. It is very similar and I think you'll be able to complete this one if you refer to the other question for reference. If you still don't understand, let me know and I'll try to get it started for you.
*February 25, 2013*

**math**

I'm going to have you do this question but I'll get you started. What do we already know? Total amount of fencing = 62 feet Width = unknown so let's refer to it by the variable W Length = 2W + 4 (they told us in the question that the length is 2 times the width ...
*February 25, 2013*

**math**

Again, you are going to be using the perimeter formula. The question tells you that the border is 192 inches which means that the total perimeter of this bulletin board is 192 inches. Since it is a bulletin board, I am going to assume that the shape is a rectangle. What do we ...
*February 25, 2013*

**math**

Let's think about this. Fencing goes around the field which means you are essentially trying to figure out the perimeter of the field. What is the formula for perimeter? Perimeter = Length + Width + Length + Width Now plug in your #s and solve.
*February 25, 2013*

**math**

I think you're wanting to put this into the form of y=mx + b. -4x+3y =-7 3y= -7 +4x y = 4/3x - 7/3
*February 25, 2013*

**math**

What are you trying to solve for? You have 2 unknowns.
*February 25, 2013*

**Math**

I'm assuming by function form you mean the form of y=mx + b. 2y + 5x = 12 So if we want to put this into function form, we want to isolate y. 2y + 5x = 12 2y + 5x - 5x = 12 2y = 12 - 5x y = -5/2x + 6
*February 25, 2013*

**Math!!**

your*
*February 24, 2013*

**Math!!**

You already asked this questions before and NO ONE is going to answer it for you unless you show you're own thinking. This is a forum designed to help you with your problems. It is NOT a forum designed to have people complete your homework for you!
*February 24, 2013*

**Math**

No problem :)
*February 24, 2013*

**Math**

1 Bag = 4 Gifts Total # of party bags = 8 Total # of part bags + Denis = 9 So originally the # of gifts without Denis would have the following equation: 8 x 4 = 32 Now that Denis is coming we have 9 party bags: 9 x 4 = 36 OR (8 x 4) + 4 = 36 So you see that the mistake is ...
*February 24, 2013*

**Algebra II**

Essentially we've created a quadratic equation and we're solving it using factoring. If you don't understand how I solved this question, I can expand on my thinking. Let me know if it makes sense.
*February 24, 2013*

**Algebra II**

Total # of seats = 900 # of rows = R # of seats = S So according to the question, if we have R rows then we have R+11 seats Total # of seats = # of rows * # of seats/row 900 = R * (R+11) 900 = R^2 + 11R 0 = R^2 + 11R -900 0 = (R+36)(R-25) Therefore, you must have 25 rows with ...
*February 24, 2013*

**The Lovely Bones**

If anyone has read this novel could you please explain 2 things to me. 1) Is Ruth Connors able to see the dead? Like when she moves to NYC she writes about all the murdered women she finds. How does she go about doing that? Can see she Susie too? 2) How is Buckley able to see ...
*February 24, 2013*

**MATHS -SALES TAX -plse URGENT-**

There are 3 things we must figure out in the this question. 1) What is the full price of this item + tax 2) What is the full price of this item 3) What is the price of this item with the 15% discount 4) Shopkeeper profit For this whole problem let us assume that 'x' is...
*February 24, 2013*

**Gen Math**

Let me just correct the 2nd line I posted: "In the question we have been told that 'twice the # of boys' = 'twice the # of boys - 63' girls. " That is wrong. I meant to say: "The # of girls = twice the # of boys-63"
*February 24, 2013*

**Gen Math**

For this problem let us assume that 'B' represents # of boys and 'G' represents # of girls In the question we have been told that 'twice the # of boys' = 'twice the # of boys - 63' girls. Total # of students = B + G 228= B + (2B-63) 228 = B + 2B...
*February 24, 2013*

**math**

So 4 names went into the bowl. If Sam is the first person selecting then the chances of him pulling out his name are 1/4. 1/4 as a percent is 25%. The second person selecting, Pam, now only has 3 names left in the bowl. Therefore, the chances that Pam will select Sam are now 1...
*February 22, 2013*

**Patho - Hyperkalemia and Heart Attacks**

Could someone please explain why an increase in potassium would cause a decrease in HR? I need someone to really dumb it down for me so I can fully understand. i was thinking that more Ka+ would increase the HR but in my lesson, it said it would slow down HR. I don't ...
*February 22, 2013*

**Math**

Did you type this question properly? Should it be tan(something) :/ Did you mean tan^-1(x)?
*February 22, 2013*

**Lang. Arts**

I would also go with C. Option A seems wrong because the hard wind from the sea is actually quite dangerous and not at all comedic. Option B seems wrong because they seem to be at the harbour not at the market. The farmer's are coming from the open-ait market but we are in...
*February 21, 2013*

**Lang. Arts**

"Non-restrictive" means basically that the phrase or clause is not necessary to the meaning of the sentence. Therefore, I would go with option A.
*February 21, 2013*

**Math**

Let's make a math sentence about how much the car company charges. Flat Rate: $120 per week = $120 * W Additional Fees: $0.12 per mile = $0.12 * M Charge = Flat Rate + Additional Fees Now let's plug in what we know: $162 = $120(W) + $0.12(M) Here's where I run into...
*February 21, 2013*

**math**

What kind of shape is this? It's hard to help when we don't know what the figure looks like.
*February 14, 2013*

**math**

OK. So let's create a formula of some sort. So what do we know? - When we remove 15 L from 2/3 filled drum, we have only 3/5 of the drum full Let's change this to a mathematical sentence. Let's say that whole drum holds 'x' Litres So we can say the ...
*February 13, 2013*

**math**

This question is very similar to the one I helped you with above. You should take a look at that on for reference. If you still don't understand, let me know and I'll help you out.
*February 13, 2013*

**Math**

I think it would be best to draw a diagram for this sort of question. So John walks 20 km East. START ----------------> JOHN (@ 20km EAST) - So John is facing this direction --> - If you were to turn 270 degree facing --> then you would be facing downwards or South - ...
*February 13, 2013*

**English - APA**

I found (author's last name, year, page #) Thank you very much for sharing that resource!
*February 13, 2013*

**English - APA**

I'm writing a book review in APA and I need to cite a quote. Would it be similar to an essay where I would do the following: (Author's last name, date of publication, page number) (Brown, 1999, p. 75) Do I need to include chapters, as well? The novel I'm doing is ...
*February 13, 2013*

**Biochemistry**

that are all the information given
*February 11, 2013*

**Biochemistry**

The Go’ value for the hydrolysis of glucose-6-phosphate is -13.8 kJ/mol. Assuming a concentration of 4 mM for this molecule, what would the phosphate concentration be at equilibrium (G = 0). Remember to convert kJ to J.
*February 11, 2013*

**stat**

if the heights of men follow a normal distribution, and 99.7% fall between 5" and 7" what is the estimate standard deviation of the height?
*February 2, 2013*

**chemistry help plz**

OH-OH-benzene ring-CH=CH-NH2 is anyone knows the name of this compound?
*January 14, 2013*

**Principles of Finance**

Since M1 = currency + demand deposits + traveler's check + other checkable deposits therefore as er the information given in the question, M1 = 700+ 300 + 10 + 300 = $1410 billion.
*January 13, 2013*

**Chemistry**

ANKUR answer is D
*January 11, 2013*

**chemistry**

thanks a lotttttttt
*January 11, 2013*

**chemistry**

a) sp3d2 b)Slightly less than 90∘ 4.13346*10^-7
*January 11, 2013*

**chemistry**

(a) What is the pH of 50 mL of a 0.2M glycolic acid aqueous solution after adding 5 mL of 0.25 M KOH? The pKa of glycolic acis is 3.83 at 25 ∘C.
*January 11, 2013*

**Chemistry**

no 111
*January 11, 2013*

**Chemistry**

OOOOO SORRY B AND E
*January 11, 2013*

**Chemistry**

not right
*January 11, 2013*

**Chemistry**

something wrong ..
*January 11, 2013*

**Chemistry**

what about a?
*January 11, 2013*

**CHEMISTRY**

(c) Calculate the degree of polymerization n of polystyrene with a molecular weight of 3.091×106 g/mol.
*January 5, 2013*

**chemistry**

(c) What is the value of the degree of polymerization n of isotactic PB with a molecular weight of 3.091×105 g/mol?
*January 5, 2013*

**chemistry help plz**

what are the values of a,b,c and d in the balanced chemical equation aFe^2+(aq)+bAl(s)=cFe(s)+dAl^3+(aq) where a,b,c and d are the lowest possible whole numbers? a= b= c= d=
*January 4, 2013*

**chemistry**

(a) Cadmium telluride (CdTe) is a semiconductor witha band gap, Eg, of 1.45 eV. Calculate the value of the absorption edge of this material. Express your answer in meters.
*December 14, 2012*

**chemistry**

Show that a conventional x-ray generator is incapable of generating x-rays of wavelength as low as 10-11m. Do this by determining the identity of the target (in atomic number, Z) which would be needed to generate such x-rays.
*December 14, 2012*

**chemistry**

A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.35 kg m-3. Under these conditions the total surface area of the balloon is 0.57 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x 10-9 m2s-1. Calculate the rate of ...
*December 14, 2012*

**Chemistry**

2 and 4
*December 14, 2012*

**chemistry**

Methane (CH4) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4 + 2 O2 -> CO2 + 2 H2O What volume of carbon dioxide is produced when 3.2 L of oxygen are consumed?
*December 5, 2012*

**chemisy**

Methane (CH4) burns in oxygen to produce carbon dioxide and water vapor. The balanced equation is: CH4 + 2 O2 -> CO2 + 2 H2O What volume of carbon dioxide is produced when 3.2 L of oxygen are consumed?
*December 5, 2012*

**Determination of ASA Content of Tablets Lab Report**

Not asking for answers necesarily but I would to know how to approach each question Mass of pure acetylsalicylic acid (ASA) : .508 g Dilution Absorbance (a.u.) 2:11 .116 4:11 .259 6:11 .392 8:11 .502 10:11 .548 Mass of tablet : .380 g Absorbance read on the Spec 20 : .314 a.u...
*December 5, 2012*

**Math**

John's Collection: 10 coins in all 2 fewer quarters than dimes 2 quarters Q = D = N =
*November 12, 2012*

**Match**

John's Collection: 10 coins in all 2 fewer quarters than dimes 2 quarters Q = D = N =
*November 12, 2012*

**Chem**

Thanks!
*November 1, 2012*

**Chem **

What pressure (atm) is needed to confine an ideal gas to 68.0 L after it has expanded from 44.0 L and 2.3 atm at constant temperature?
*November 1, 2012*

**CHEM**

Silicon carbide, commonly known as carborundum, is a very hard and abrasive substance. The compound is prepared by heating silicon dioxide in the presence of graphitic carbon: SiO2(s) + 2C(s) --> SiC(s) + CO2(g) How many grams of silicon carbide can be formed from 55.0 g of...
*October 18, 2012*

**CHEMISTRY **

What element is represented by this electron ground state configuration : [Kr] 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d2 7s2 Is this really Krypton?
*October 18, 2012*

**CHEMISTRY **

What element is represented by this electron ground state configuration : [Kr] 4d10 4f14 5s2 5p6 5d10 5f14 6s2 6p6 6d2 7s2 Is this really Krypton?
*October 18, 2012*

**CHEM**

Arrange the following in order of increasing atomic radii from smallest to largest. Mg Ra Sr Be Ca Ba
*October 18, 2012*

**Chem help **

Answer the questions below for an element that has the electron configuration 1s2 2s2 2p6 3s2 3p6 4s1. A. What is the symbol for this element? B. What is the atomic number of this element? C. How many unpaired electrons does an atom of this elelemt have? D. How many valence ...
*October 17, 2012*

**Chem**

Balance the following chemical equation (put the coefficients in order) Fe + O2 + H2O → Fe(OH)
*October 10, 2012*

**literature**

is a right
*July 22, 2012*

**Math**

Use the method of substitution to solve the linear equation! 6a=6-b 6a=5-b please help I don't get it it needs to be an ordered pair.
*June 26, 2012*

**Chemistry**

in the presence of NH3, Cu+2 forms the complex ion [Cu(NH3)4]+2. If the equilibrium concentrations of Cu+2 and [Cu(NH3)4]+2 are 1.8x10^-17M and 1.0x10^-3M respectively, in a 1.5 M NH3 solution, calculate the value for the overall formation constant of [Cu(NH3)4]+2. Cu+2(aq)+ ...
*April 3, 2012*

**english**

No, because the verb should be past tense. The sentence is referring to Fredericksburg who is no longer in Comance territory.It is in the past that he is in Comanche territory. The sentence should be: Fredericksburg used to be in Comanche territory.
*April 2, 2012*

**business**

The answers are correct!
*March 7, 2012*

**Chemistry please help**

State Dalton’s Postulates? In light of modern knowledge, what are the inaccuracies in Dalton’s Postulates? I know Dalton's postulates: -All matter consists of tiny, indivisible particles called atoms that cannot be created or destroyed -Atoms of one element ...
*February 19, 2012*

**Science**

Which of the following is a way to improve the efficiency of a heat engine? increase Qh reduce Qh reduce Wnet increase Qc A What are the energies associated with atomic motion called? kinetic energy potential energy bond energy internal energy D A 0.10 kg piece of copper at an...
*January 23, 2012*

**Math**

Mathman couldn't resist the grooving tunes inside and paid his $5.00. He was heading straight for the punch bowl when he noticed a witch mixing it together using a solution which was 60% lizard drool and another that was only 25% lizard drool. If she wanted to make 30 ...
*October 27, 2011*

**Fourth grade math**

How do I write an expanded algorithm????
*October 27, 2011*

**Math**

Wednesday
*October 26, 2011*

**geometry**

When you solve the equation above, you'll get a value for the base of the triangle. Simply multiple that value by 3 in order to get the height.
*September 14, 2011*

**geometry**

First let's look at the formula to find the area of a triangle. Area = (base x height)/2 Now, the question tells us that the height is 3x the base. Therefore, it is safe to say that if B is the base then the height must be 3B. We can then re-write the formula: 27 = ( B x ...
*September 14, 2011*

**algebra**

This is what I think you would have to do: 1) Find 6% of $350,000: (0.06 x 350000) 2) Add the # you find in 1) to the base salary to get the total pay for the year
*September 14, 2011*

**Spinal Cord Injury @ T5**

Could I ask you a question. If T5 is completely injured, does that mean that all the levels below do not work as well?
*September 14, 2011*

**Spinal Cord Injury @ T5**

I've been trying to find out what would happen to a person with complete spinal injury @ the level of T5. Is there a chart or something I could look at that would explain what would occur at each level of the spinal cord? I keep googling stuff and it keeps telling me this ...
*September 14, 2011*

**MATH HELP PLEASE**

Well this is my thinking. The factors of 33 are as follows: 1 x 33 3 x 11 Therefore, you wouldn't be able to fill all 4 kennels if you used all the dogs. The only thing that makes sense to me is to not put one of the dogs in the kennel (which gives you 32 dogs): 4 x 8 = 32...
*September 14, 2011*

**geometry**

If F is the midpoint of segment EG then you know that the distance from E to F and the distance from F to G should be equal. Therefore EF = FG. Knowing that you can solve for X by the doing the following: EF = FG 2X + 11 = 53 2X + 11 - 11= 53 - 11 2X = 42 2X/2 = 42/2 X = 21
*September 14, 2011*

**Physics**

For the Law of Sines state the formulas, explain them in your own words, and draw a diagram illustrating one of them.
*September 11, 2011*

**Pre-Calc**

x<log(lower number=6)144 I know you would do log144/log6, but I'm not sure if the sign is switched or not.
*September 10, 2011*

**Pre-Calc**

Find the area of the region between the graph of y=1/x, the x-axis, and the vertical lines x = 1 and x = 4.
*September 10, 2011*

**Spinal Cord Injury @ T5**

I'm not quite understand how spinal cord injuries work. If you have a complete spinal cord injury @ T5, what does that mean in terms of what you can do? There is so much info on the cervical region of the spinal cord but I can't find much on the thoracic especially T5...
*September 9, 2011*

**Pre Cal/ domain**

1. sqrt x^2-5x-14 2. cube root x-6/sqrt x^2-x-30 3. y= ln2x-12
*July 24, 2011*

**essay writing**

Oh, I never thought of that. Thanks a bunch!
*June 6, 2011*

**essay writing**

my prof said that I used next I will discuss way too much so now i'm thinking of other things to say other than discuss but I can't think of anything. this is when im stating my arguments in my introduction. any suggestions?
*June 6, 2011*

**microeconomics**

TRUE OR FALSE: 9. Assume that the Minimum Wage has increased to $14 from $10. If the total labour-income at the wage of $14 is higher than the total labour-income at the wage of $10, it means that the labour-demand with respect to wage is elastic. FALSE. I don't understand...
*May 31, 2011*

**Economics**

My micro econ prof was trying to explain marginal analysis and he said the following: If your marginal happiness is 0 then you are maximally happy. I don't understand this at all. Could someone explain this to me? Thanks!
*May 9, 2011*

**Microeconomics**

Thanks so much, Ms. Sue!
*May 4, 2011*

**Microeconomics**

I'm just confused about this one concept. My lecture notes say the following: Markets for goods + services: - firms sell - households buy Markets for Factors of Production: - Households sell - Firms buy I don't understand the "factors of production". What ...
*May 4, 2011*

**english**

write the possessive nouns that could replace each group of word below
*April 8, 2011*

**Business - royalty **

Thanks a bunch, Ms. Sue.
*April 3, 2011*

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