Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 1,620

**math**

63% of 105$

**Pre Cal.--Check my work?**

Solve the system of equations: x - y - z = 2; x + 2y - 2z = 3; 3x - 2y - 4z = 5? well, you have: 1- x-y-z=2 2- x+2y-2z=3 3- 3x-2y-4z=5 multiply both sides of the equation 1 by 2: x-y-z=2 ===> 2x-2y-2z=4 add this by equation 2: 2x-2y-2z=4 x+2y-2z=3 ==> 3x - 4z = 7 (*) now...

**Accounting**

Give an example of the following tranactions •Increase an asset and increase a liability. •Increase one asset and decrease another asset. •Decrease an asset and decrease owner's equity. •Decrease an asset and decrease a liability. •Increase an asse...

**Adv. Math.**

Find the number of possible negative real zeros for f(x)=6+x^4+2x^2-5x^3-12. Answer: 0 2) Approximate the real zeros of f(x)=2x^4-3x^2-2 to the nearest tenth. Answer: no real roots

**English**

hey, I am trying to write an essay for my university english class but I cannot find any good literary criticism databases. I went to mla international bibliography but couldn't find anything. I am trying to write an essay on the Fall of american dream for Of mice and men ...

**MATH**

Find the periodic withdrawals for the annuity of $400,000 at 4%, paid out monthly for 16 years. (Assume end-of-period withdrawal and compounding at the same intervals as withdrawal. Round your answer to the nearest cent.)

**MATH**

Find the amount accumulated in the sinking fund if $1600 is deposited quarterly for 20 years at 6% per year. (Assume end-of-period deposits and compounding at the same intervals as deposits. Round your answer to the nearest dollar.)

**MATH**

Find the amount accumulated in the sinking fund if $1600 is deposited quarterly for 20 years at 6% per year. (Assume end-of-period deposits and compounding at the same intervals as deposits. Round your answer to the nearest dollar.)

**MATH**

Find the amount accumulated in the sinking fund if $1600 is deposited quarterly for 20 years at 6% per year. (Assume end-of-period deposits and compounding at the same intervals as deposits. Round your answer to the nearest dollar.)

**math**

Convert all the fractions so that they all have the same denominator (the number below the line). That way, you can tell how big they are relative to one another just by looking at the numerator (the number above the line). (#1.) 2/5, 1/10, and 3/20 can all be converted so tha...

**Math**

Two old watches were found. Both watches were set for the current time. Forty-five minutes later one old watch was 1 minute ahead and the other old watch was 2 minutes behind. The next morning one watch read 7am and the other read 6am. At what time were the two old watches set?

**Math**

1) Figure out number of grams of silver 3 kilograms X 1000 g/kilogram= 3 X 10^3 grams 2) Figure out number of atoms in 3X10^3 grams of silver 3 X 10^3 grams X 5.58 X 10^21 atoms/gram = 16.74 X 10^24 atoms or 1.674 X 10^25 atoms

**Anatomy**

How do we perform complex actions that apparently require no thinking?

**math**

I think i misunderstood the question.. is it just 1080 - 896

**math**

Suppose that a college admissions office needs to compare scores of students who take the Scholastic Aptitude test(SAT) wit those who take the american college test (ACT). Suppose that among the college's applicants who take the SAT, scores have a mean of 896, and a standa...

**MATHEMATICS**

Find the amount accumulated in the sinking fund if $1600 is deposited quarterly for 20 years at 6% per year. (Assume end-of-period deposits and compounding at the same intervals as deposits. Round your answer to the nearest dollar.)

**math**

Find the periodic payments necessary to accumulate $20,000 in a sinking fund paying 4% per year, with monthly payments for 5 years. (Assume end-of-period deposits and compounding at the same intervals as deposits. Round your answer to the nearest cent.)

**math**

When I was considering what to do with my $10,000 Lottery winnings, my broker suggested I invest half of it in gold, the value of which was growing by 10% per year, and the other half in CDs, which were yielding 3% per year, compounded every 6 months. Assuming that these rates...

**MATH**

do u tutor me for my nys test

**Mathematics**

Oh, these are the variable inputs. d=deposit each time period i=rate per time period n=number of time periods

**Mathematics**

My teacher gave us this equation, and I can't remember how to use it. It's for Simple and Compound Interest. Future Value=d[((1+i)^n-1)/i] d=deposit each time period i=rate per time period n=number of time periods

**texas state**

draw a supply curve for an ice parlor switching production from ice cream to yogurt.

**ALGEBRA 1**

the equation that passes through the given point and is parellel to the point (2,-3);2x+y=5

**english**

who are the two main characters in the story

**Probability/Statistics**

Two independent events, A and B, satisfy Pr(A) = 0.6 and Pr(B) = 0.3. In the case of Pr(A or B), why isn't the answer 0.3? We are looking at the probability of A or B. I choose B. Thank you!

**Math**

antiderivative of (x-2)/(x-1)

**Marcoeconomics**

And is the bond price=face value?

**Marcoeconomics**

if Bond price= the discounted value of all the future income it will generate then does it mean that the buyer of the bond earn nothing? Because he in fact need to pay the discounted value of the future income(interest) which is said to be earned by him when buying the bond. T...

**Marcoeconomics**

My logical deduction is: asset demand for money + transaction demand for money= money demand=supply of bond(as bond issuers create supply of bonds)

**Marcoeconomics**

According to the formula, Bond price= y/r so bond price has a inverse relationship with interest rate.i.e. interest rate increases, bond price decreases. But why does it contradict with this demand-supply anysis: r(interest rate increases)--> returns from buying bonds incre...

**Reiny! Reiny! Reiny! Answer Check and HW Help!**

3) Answer (12, 28) 4) Answer (4, 22)

**Engineering**

Two pieces of steel are held together with six bolts. One end of the first piece of steel is welded to a beam and the second piece of steel is bolted to the first. There is a load of 54,000 pounds applied to the end of the second piece of steel. The tensile strength of steel i...

**Engineering**

5. Two pieces of steel are held together with six bolts. One end of the first piece of steel is welded to a beam and the second piece of steel is bolted to the first. There is a load of 54,000 pounds applied to the end of the second piece of steel. The tensile strength of stee...

**Engineering**

Thanks bob mind helping me with one more? The questions all ready posted, same subject.

**Engineering**

Determine the required nominal diameter of a threaded steel rod to carry an axial load of 16,000 pounds in tension if the tensile stress of 20,000 psi is permitted.

**chemistry**

a 16.2 L sample of CO(g) at 1.50 atm and 200.*C is combined with 15.39g of Fe2O3(s), How many moles of CO(g) are availabe for the reaction

**AP Calculus**

how do you evaluate integral of [lxl] from (0,2) , a step function. would you just do it as if it were a absolute value and then do two different integrals?

**Calc**

find the area between y=x^3–14x^2+45x and y=–x^3+14x^2–45x i am having trouble how the graphs look like and how to do this...

**chemistry**

.77

**statistics**

The questioner doesn't want the weighted mean, she wants the mean of the difference. This is equal to the difference between the means, or 0.12.

**Math**

You have a mean score of 86 on 9 quizzes. The teacher decides to drop your lowest quiz score to determine your final quiz mean. After dropping the lowest score, your mean score on the 8 remaining quizzes is 88. What score was dropped?

**the novel "Ordinary People" by Judith Guest**

Has anybody read this book? I have a few questions to ask, I've read the book but forgotten a few things reply ASAP!

**Physics**

(a)M.A=2 (B)F=186.6N(C)MASS=20KG,W=173N

**accounting**

Are condominiums taxable or exempt

**12th grade English**

A Lesson Before Dying- Quotations Analysis. " I had gone to barbershops;I had stood on street corners, and i had gone to many suppers in the quarter.But i had never really listened to what was being said.Then i began to listen, to listen closely to how they taked about th...

**Finance-options**

this was an exam question...i answer for a) long call option b) long put option. But i got it wrong, the instructor won't tell us the answer, he wants us to figure it out ourselves. But i just don't know. Any guidance would be helpful.

**Finance-options**

I need help on the following question. Suppose that you are the manager and sole owner of ahighly leveraged company. All the debt will mature in one year. If at that time the value of the company is greater than the face value of the debt, you will pay off the debt. If the val...

**Chemistry**

thanks a lot !!!

**Chemistry**

Q1. What will be formed when propanone reacted with sodium hydrogensulphite? There is white precipitate is the resulting solution . Is it sodium carbonate? Q2. What are the difference in the products bewteen the reaction of ethanal and propanone reacting with 2,4-dinitrophenyl...

**Chemistry: ketone and aldehydes**

Q1. What will be formed when propanone reacted with sodium hydrogensulphite? There is white precipitate is the resulting solution . Is it sodium carbonate? Q2. What are the difference in the products bewteen the reaction of ethanal and propanone reacting with 2,4-dinitrophenyl...

**Chemistry**

Q1. What will be formed when propanone reacted with sodium hydrogensulphite? There is white precipitate is the resulting solution . Is it sodium carbonate? Q2. What are the difference in the products bewteen the reaction of ethanal and propanone reacting with 2,4-dinitrophenyl...

**French**

Please correct the verb tenses in the following paragraph Alceste, le gros copain de Nicolas, se passionne pour la nourriture. Chaque fois qu’il sort avec ses amis il a envie de manger. La semaine dernière ses amis et lui ont décidé d’aller au ma...

**Financial management**

evaluates investment opportunities using payback. The finance director who has been with the company since its formation in 1975, has recently heard that this method may not be the best for evaluating long term projects. You have been brought in to advise the company and have ...

**English**

Leaving Home(the play)proves that the family structure is by far the greatest cause of people's social dysfunctioning. say why you agree or do not agree with this statement.

**math help me**

sorry because of misunderstood of the question. The above answer is wrong

**math help me**

case 1 : both bottle give red balls 1/2 * 1/2 = 1/4 case 2 : one bottle gives red ball 1/2 * 1 =1/2

**chem**

methanoic acid react with potassium dichromate to form what? A colorless solution and CO2 is formed as known

**math**

Find the first and third quartiles, Q1 and Q3, of the following set of numbers. 14, 4, 13, 18, 8, 15, 8, 3, 11, 8

**math**

-1/2- (-5/8)=

**math need help please**

-9 to the 2nd power - (-6) to the 2nd power

**Pharmacy Math**

The dose of gentamicin sulfate is 1.7mg/kg. How many mls of an injectable solution containing 40mg/ml should be administered to a person weighing 220 pounds? Any help is appreciated.

**Pharmacy Technician**

A physician prescribed 5mg/kg q day of a drug for a patient that weighs 132 pounds. How many 100mg tablets will be needed for a 2-week prescription?

**Need Help on this Microeconomics question, really**

If firms in perfect competition all pay the same price for resources and all receive the same price for outputs, how can they have different total profits or different profits per unit sold?

**Math**

Make up a data set of at least 12 numbers that have the following landmarks. Maximum : 18 Range : 13 ___________________________________ ___________________________________ ____ mode: 7 median: 12

**seventh grade science**

Thank you!

**seventh grade science**

Thank you. I looked it up in a dictionary, but I do not understand the terminology. Can you please explain it in a simpler language? Thank you.

**seventh grade science**

what is a monomer what is a polymer what is the structure of a protein

**Need examples of variable and fixed inputs (micro)**

I just need some example of fixed and variable inputs.

**Math**

Imagine there are 100 lockers. Each locker is given a number 1-100. When the students are assigned to their lockers, the 1st student runds down the row of lockers and opens every door, student #2 closes the doors of locker #'s, 2,4,6,8, etc. to the end of the line. Student...

**Microeconomics help please (urgent)**

True or False? Explain your reasoning. a. The short-run average total cost can never be less than the long-run average total cost. b. The short-run average variable cost can never be less than the long-run average total cost. c. In the long run, choosing a higher level of fix...

**8th grade**

I went to an unscramble a word site and came up with this "Zach's Word Unscrambler" Results The scrambled word you entered was "afsedrniru " ... Sorry, No Matches Were Found...

**Microeconomics (margin Utility) need clarification**

Someone was kind enough to help me with this question, but i was still confused on how they helped me with the first part of my question. The original question was: You go to an auction and set a maximum price of $100 you are willing to bid on an item. However, you are fortuna...

**Microeconomics help please (urgent)**

Thank you. I will remember the advice in the future:)

**Microeconomics help please (urgent)**

You go to an auction and set a maximum price of $100 you are willing to bid on an item. However, you are fortunate and purchase it for $50. 1) Does the lower price alter the marginal utility you originally placed on the item? 2) Is your potential total utility increased becaus...

**Math**

Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). How do I solve this problem? I understand this so far f(a)=f(a+15) 1/(7+a) + 15/(a-8) = 1/(a+22) + 15/(a+7) I am lost after that This is a multiple choice question and I am not getting any of the choices a.) -161/...

**Formula help**

This is a multiple choice question and I am not getting any of the choices a.) -161/8 b.) 120/7 c.) 161/7 d.) -17

**Formula help**

Let f(x) = 1/(x+7)+15/(x-8). Find all a for which f(a)=f(a+15). How do I solve this problem?

**Help**

Now solve for speed of wind in the first equation.. 33km/time=32km/hr-speedwind. How do I do that?

**Physics**

You should start by listing the given information. vi = 0 vf = 100 m/s t = 12.5s a = (vf-vi)/t A). a = (100m/s - 0m/s)/12.5 s a = 8.00 m/s^2 B). You can use several equations for this question. I'm going to use: d = (vf + vi)/2 * t. d= (100m/s + 0m/s)/2 * 12.5 s d= 625m C)...

**o-chem**

explain how the rate of crystal growth can affect the purity of a recrystallized compound

**o-chem**

explain how the rate of crystal growth can affect the purity of a recrystallized compound

**o-chem**

well im confused because you said one needs to be great and the other has to be poor. so if you combine both do you get a great solvent or a horrible one?

**o-chem**

thanks. i understand why e won't work, but im a little confused on choice a. they both dissolve a wide range of solutes so would it be a great solvent?

**o-chem**

Explain whether or not each of the following pairs of solvents might be useful as a solvent pair for recrystallization. (a) ethanol-methanol (b) hexane-cyclohexane (c) acetone-ethanol (d) water-ethanol (e) water-cyclohexane

**O- chemistry**

During a recrystalliztion experiment, a student allows the hot solution to cool to room temperature, then chills the solution in an ice bath. Is the student using correct recrystallization technique? Why does the student not simply chill the hot solution in an ice bath initially?

**AP US History**

1775 to 1800

**Re**

i need to find eveidence of 3 things that jesus did and 3 things jesus didn`t do. thanks!

**grammar**

What part of speech is the word "Below" used in the following sentence. Below the main level, we have a large playroom.

**education**

Just to take the very first term you've listed, are you suggesting that income is a characteristic of a multicultural school? What would that mean - that a multicultural school has income? And if so, is that what you're trying to say? I don't think it is, is it? Or...

**Calculus**

8/h -> infinity as h -> 0, so I don't see how the above expression can tend to anything other than minus infinity.

**Math**

Can I throw in a note of clarification? Melissa'a answers are actually correct: what's INcorrect is the algebra that apparently gave rise to them. As Bob pointed out, the "16 divided by 6" is actually a measure of inches per car, not cars per inch. Also, the ...

**algebra ll**

im having trouble with this problem 6( n - 4 ) = 3n

**Math**

No, I'm sure the problem is written like this: [(3a^3-27a)/(2a^2+13a-7)]/[9a^2/4a^2-1)] And to divide you multiply by the reciprocal. So i still don't get the problem I also know to factor, but I'm stil confused.

**Math**

No, I'm sure the problem is written like this: [(3a^3-27a)/(2a^2+13a-7)]/[9a^2/4a^2-1)] And to divide you multiply by the reciprocal. So i still don't get the problem I also know to factor, but I'm stil confused.

**Math**

I'm totally stuck on this problem!! Simplify: (2a^2+13a-7/3a^3-27a)(4a^2-1/9a^2)

**Algebra II/Trig**

No, Problem! Thank you so much for the answer!

**Algebra II/Trig**

Simplify: (n/4)/(n/m) As my answer I got: 4m Is this response correct? If not, please let me know what I did wrong.

**Math check**

No, you distributed the 4 to the y only. You also need to distribute the 4 to the 8. This would then make the answer 4y+32

**Math**

Simplify: 24w^7t^4/6w^9t^2 And How Exactly do u do this? I got 4w^16t^6

**Algebra II/Trigonometry**

Thank you so much drwls! I can not believe I did not figure that out!

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