Saturday

September 5, 2015
**marketing**

the first step in taking control of your finances is
*Wednesday, February 11, 2015 by Anonymous*

**math**

What is your debt ratio? If you budget $375 to payoff your credit card debt and you payoff the highest interest card first while maintaining the interest accrued on the other card, how many months does it take you to pay it off and how much is the payment each time excluding ...
*Wednesday, February 11, 2015 by toby*

**PHYSICS**

A variable length air column (closed on one end) is placed just below a vibrating wire of mass 5.00g, which is fixed at both ends. The length of the air column is gradually increased from zero until the first position of resonance (first harmonic) is observed at 34 cm. The ...
*Wednesday, February 11, 2015 by Aaron*

**physics **

Two bodies have masses in ratio 3:4when a force is applied on the first body it moves with an acceleration of 6m/s2 how much acceleration will the same force produced in the body
*Wednesday, February 11, 2015 by ammu*

**math**

What is your debt ratio? If you budget $375 to payoff your credit card debt and you payoff the highest interest card first while maintaining the interest accrued on the other card, how many months does it take you to pay it off and how much is the payment each time excluding ...
*Tuesday, February 10, 2015 by toby*

**Visual Arts**

3 differences between first angle projection and third angle projection
*Tuesday, February 10, 2015 by maxwel*

**English**

Which of the following lines from "Wanted: A Town Without a Crazy" uses irony to create a comic effect? a. "After handling in my resignation and leaving, I had heard no new of Hilmi Bey again. But the Hilmi Bey I knew was a very serious-minded, sober man." ...
*Tuesday, February 10, 2015 by Cassie*

**Latin I**

Primo (at first), natura ab viris adorabatur. Antequam (afterwards), viri et feminae deos et deas laudabant. Tum (Then) animas naturae laudabant. Animae naturae timebantur. Viri rogabant: De quo luna (moon) venit (comes)? De quo sol (sun) venit (comes)? Quid est causa fulminis...
*Tuesday, February 10, 2015 by Jen*

**math**

FOUR STEPS: Amy and three friends launch a new website. Each of the four friends e-mails the web address to three new friends. These new friends forward the web address to three more friends. If no one receives the e-mails more than once, how many people will receive the web ...
*Tuesday, February 10, 2015 by kyle*

**Language Arts**

In the first line from "O captain! My Captain!" what does "our fearful trip"refer to? A. The Civil War. B. The battles at Antietam Creek. C. The presidency. D. Lincoln's life. Is the answer A? Thank you
*Tuesday, February 10, 2015 by Callie*

**anthropology**

Is my answer correct First describe how colonization and globalization have affected sociopolitical systems, and then discuss how political systems change. Give examples for each objective. Colonization is the practice of one country taking over another with their people. ...
*Tuesday, February 10, 2015 by jimmy*

**maths**

A body of mass 11kg falls freely from rest from a height of 15m above the ground. 3m above the ground it breaks through a thin roof before continuing its fall. (a) given that the work done in breaking through the roof is 130 J. Calculate the velocity of the body after it ...
*Monday, February 9, 2015 by gale gale*

**math (statistics)**

The following table shows the percentage of individuals in each age group who use an online tax program to prepare their federal income tax return. AGE ONLINE TAX PROGRAM (%) 18-34 16 35-44 12 45-54 10 55-64 8 65+ 2 Suppose a follow-up study consisting of personal interviews ...
*Monday, February 9, 2015 by sarah*

**Calculus **

If Y = SecXTanX, find y" 4y' 4y. I can easily do the second part of the question if I could if only I could find d first and second derivative of SecXTanX, pls do help.
*Monday, February 9, 2015 by Francis *

**Physics **

A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 23.7 minutes at an average speed of 6.31 m/s. During the second part, she rides for 25.0 minutes at an average speed of 4....
*Monday, February 9, 2015 by Emily *

**Language Arts**

TWO roads diverged in a yellow wood, And sorry I could not travel both And be one traveler, long I stood And looked down one as far as I could To where it bent in the undergrowth; 5 Then took the other, as just as fair, And having perhaps the better claim, Because it was ...
*Monday, February 9, 2015 by Calie*

**math**

At the first meeting of the chess club, the 10 members decided that everyone in the club should play everyone else one time to determine the best players for the inter-school competitions. How many games had to be played?
*Monday, February 9, 2015 by sandra*

**maths**

A body of mass 11kg falls freely from rest from a height of 15m above the ground. 3m above the ground it breaks through a thin roof before continuing its fall. (a) given that the work done in breaking through the roof is 130 J. Calculate the velocity of the body after it ...
*Monday, February 9, 2015 by gale gale*

**College Physics **

A sled at rest is suddenly pulled in three horizontal directions at the same time, but it does not move. Paul pulls to the northeast with a force of 31 lb. Johnny pulls at an angle of 36° south of due west with a force of 52 lb. Connie pulls with a force to be determined. ...
*Monday, February 9, 2015 by Sadarhri *

**math**

The third and fifth term of an arithmetic progression are 10 and-10 respectively. a)Determine the first and the common difference t3 = a + 2d = 10 t5 = a + 4d = -10 -a -2d = -10 a + 4d = -10 2d = -20 d = -10 a + 2(-10) = 10 a -20 = 10 a = 30; d = -2 b)The sum of the first 15 ...
*Sunday, February 8, 2015 by kudu*

**Business Math**

Ms. Hardin invested $60,000 in three stocks. The first year, stock A paid 7% dividends and increased 4% in value; stock B paid 8% dividends and increased 5% in value; stock C paid 9% dividends and increased 3% in value. If the total dividends were $4620 and the total increase ...
*Sunday, February 8, 2015 by Hali*

**geometry**

The first term of a geometric sequencf is 3 and the sum of the second and the third term is 60.determine the first three terms and the general term Tn
*Sunday, February 8, 2015 by Snontia*

**chemistry**

Which of the following reactions will be spontaneous at standard state? Not all the reactions are balanced, so make sure they are balanced first. The ΔG of formation data can be found in an appendix in your text book. You may select multiple answers. Any reaction with ...
*Saturday, February 7, 2015 by danny*

**Vectors: Dot product**

Given a and b unit vectors if |a+b|=square root 3, determine (2a-5b)dot(b+3a) First I foiled the whole thing: =2(a dot b)+ 6 (a dot a) - 5(b dpt b) -15(a dot b) =-13(a dot b) + 6(a dot a) - 5(b dot b) =-13(1)(1)+6-5 =-13+1 =-12 Textbook answer is -11/2 I don't know how to ...
*Saturday, February 7, 2015 by MathHelp*

**stats**

A box contains 10 red balls and 20 blue balls. Three balls are selected at random one after the other from the box, without replacement. If the first two balls selected are both blue, what is the probability that the third ball selected is red?
*Saturday, February 7, 2015 by larry*

**math**

A coin is tossed 3 times. Find the probability that all the 3 are heads (A) if it is known that the first is heads (B) if it is known that the first 2 are heads (C) if it is known that the 2 of them are heads
*Saturday, February 7, 2015 by Joseph*

**statistics**

A coin is tossed 3 times. Find the probability that all the 3 are heads (A) if it is known that the first is heads (B) if it is known that the first 2 are heads (C) if it is known that the 2 of them are heads
*Saturday, February 7, 2015 by Joseph*

**math**

f(x) = 0 if x<-3 f(x) = 4 if -3≤x<1 f(x) = -2 if 1≤x<5 f(x) = 0 if x≥5 g(x) = integral from -3 to x of f(t)dt g(-4) = 0 g(-2) = 4 g(2) = ? g(6) = ? The absolute maximum of g(x) when x = ? and is the value of ? It may be helpful to graph f(x). I didn...
*Friday, February 6, 2015 by Robina*

**american Literature**

There are 4 parts to The Declaration of Independence. Match each part of The Declaration of Independence to its description. Potential Matches: 1 : Preamble 2 : List of Grievances 3 : Declaration of Natural Rights 4 : Resolution of Independence Answer : This part lists the ...
*Friday, February 6, 2015 by Robb4301*

**math/algebra**

Determine three consecutive odd integers such that three times the middle integer is seven more than the sum of the first and third integers.
*Friday, February 6, 2015 by sally*

**Probability**

Alfred and Bob toss a coin alternatively, and whoever gets a head first will win. They play many times and whoever loses in the previous play will toss first at the next play. If Eric tosses first at the first play, then what is the probability that Eric will win at the 6th play?
*Friday, February 6, 2015 by James*

**English**

I need some more help with these question. Please. I want to make sure i do well 1. When writing reports and proposals, ________. A. state your reason for writing in the first sentence, as your reader will likely dispose of the document quickly B. research and being well-...
*Friday, February 6, 2015 by Jay*

**Grade 8**

The numbers 1 through 9 are put into a hat. What is the probability that all odd numbers will be chosen first if one number at a time is drawn from the hat and not replaced?
*Friday, February 6, 2015 by Ellia*

**math **

At the beginning of every year, a man deposited $ 10,000 in a financial institution which paid compound interest at the rate of 20% p.a. He stopped further deposits after three years. The Money remained invested in the financial institution for a further eight years. (a) How ...
*Friday, February 6, 2015 by kudu please check is it corret?*

**physics**

A stone is dropped into a river from a bridge 43.8 m above the water. Another stone is thrown vertically down 1.65 s after the first is dropped. Both stones strike the water at the same time. What is the initial speed of the second stone?
*Friday, February 6, 2015 by Brian*

**math **

Place the numbers below on a number line: ∛7 , -3 , 0 , 105/59 , 7^1/3 , 7^2/3 I tries: ∛7 = 1.912 -3 0 105/59 = 1.779 7 1/3 = 7.33.. <-- right? 7 2/3 = 7.66.. <-- right? first of all ,does the answer i convert right?
*Friday, February 6, 2015 by Anonymous*

**Science**

If the concentration of AgCl drops from 1.000 M to 0.655 M in the first 30.0 s of the reaction, what is the average rate of reaction over this time interval?
*Thursday, February 5, 2015 by Rose*

**math **

At the beginning of every year, a man deposited $ 10,000 in a financial institution which paid compound interest at the rate of 20% p.a. He stopped further deposits after three years. The Money remained invested in the financial institution for a further eight years. (a) How ...
*Thursday, February 5, 2015 by kudu pls check is this correct*

**Calculus**

a) Find d/dm (x^4m^5 + y^3m +z^6) b) Find the first and second derivatives of: v = 3t^2 + 8t + 11 v' = v'' =
*Thursday, February 5, 2015 by Arin*

**Chemistry **

Because of the changing color of the solution as the following reaction proceeds, the rate law can be determined by measuring the rate of disappearance of the permanganate ion (MnO4-). 2MnO4-(aq)+ 5H2C2O4(aq) + 6H+(aq) -> 2Mn2+(aq) + 10CO2(g) + 8H2O(l) The following initial...
*Thursday, February 5, 2015 by Freddy*

**math**

The ratio of one side of a polygon to the corresponding side of a similar polygon is 5:8 The perimeter of the second polygon is 96. What is the perimeter of the first polygon.
*Thursday, February 5, 2015 by Heidi*

**math**

On Rhonda's family farm, the workers picked 5/12 of the strawberries in the first week. These strawberries were put in 10 crates, and 20kg were left over. The crates were sent off to the supermarket and the other 20kg were sold at the family fruit stand. During the second ...
*Thursday, February 5, 2015 by LInda*

**Academic English**

Hello! For my first task, I have to reflect on these two questions from a University seminar. I answered the questions below. Please let me know if I have answered them well enough. what does it mean to "learn" something? To "learn" something means to gain ...
*Thursday, February 5, 2015 by Meimi*

**math**

On Rhonda's family farm, the workers picked 5/12 of the strawberries in the first week. These strawberries were put in 10 crates, and 20kg were left over. The crates were sent off to the supermarket and the other 20kg were sold at the family fruit stand. During the second ...
*Thursday, February 5, 2015 by LInda*

**Math**

On Rhonda's family farm, the workers picked 5/12 of the strawberries in the first week. These strawberries were put in 10 crates, and 20kg were left over. The crates were sent off to the supermarket and the other 20kg were sold at the family fruit stand. During the second ...
*Thursday, February 5, 2015 by LInda*

**art**

I need help with art please? (10 points) 1. Which exhibit would be the least likely choice for a museum specializing in European art? A. Renaissance Art B. Medieval religious panels C. Temple Art *** D. Baroque Art 2. A Chinese watercolor painting contains an image of a bird ...
*Thursday, February 5, 2015 by Polly *

**Maths**

Divide Rs 116 among 4 parts such that 5 added to first part 4 subtracted from the second part 3 mutltiplied by third part and fourth part divided by 2 are all equal
*Thursday, February 5, 2015 by Akash Hazra*

**Maths**

Divide Rs 116 among 4 parts such that 5 added to first 4 subtracted from the second 3 mutltiplied by third and fourth divided by 2 are all equal
*Thursday, February 5, 2015 by Akash Hazra*

**Maths**

Divide Rs 116 among 4 parts such that 5 added to first 4 subtracted from the second 3 mutltiplied by third and fourth divided by 2 are all equal
*Thursday, February 5, 2015 by Akash Hazra*

**English**

Posted by rfvv on Monday, February 2, 2015 at 9:30pm. Posted by rfvv on Tuesday, January 27, 2015 at 10:03pm. Is he doing well in class? 1. - No, he isn't. You see, he can't read or write. 2. - No, he isn't. You know, he can't read or write...
*Wednesday, February 4, 2015 by rfvv*

**reading**

Many years ago, there lived a woodsman and his wife. They were very poor but very happy in their little house in the forest. Poor as they were, they were always ready to share what little they had with anyone who came to their door. They loved each other very much and were ...
*Wednesday, February 4, 2015 by twilight sparkle*

**physics**

Initially, a particle is moving at 5.45 m/s at an angle of 38.5° above the horizontal. Four seconds later, its velocity is 6.24 m/s at an angle of 54.3° below the horizontal. What was the particle's average acceleration during these 4.00 seconds in the x-direction...
*Wednesday, February 4, 2015 by Brad*

**EDU 650**

revise your set of twenty-first century skills to include a list of five to ten specific skills. Do you think these skills are developed when students have greater autonomy in the classroom to undertake learning topics of interest, or is more directed tea
*Wednesday, February 4, 2015 by rENATA*

**Algebra**

You have a standard deck of 52 cards,you pick one card from the deck and them without putting the first card back,you pick a second card.What is the probability both cards will be 9s?
*Wednesday, February 4, 2015 by Lisha*

**english**

"BLM Wild Horses Joining the Marine Corps Mounted Color Guard on June 3 in Carson City, NV" 1 A special tradition, almost two decades old, between the Bureau of Land Management (BLM) and the U.S. Marine Corps, will be renewed in Carson City on Saturday, June 3, 2006...
*Wednesday, February 4, 2015 by Robb4301*

**English**

The first X games featured biking and skateboarding.
*Wednesday, February 4, 2015 by Anonymous*

**math**

I have a bag that contains 10 red marbles, 9 green marbles, and 6 blue marbles. I reach into it and take one marble at random. Keeping that marble, I reach into the bag again and take a second marble at random. a. What is the probability that the first marble is green and the...
*Wednesday, February 4, 2015 by joanna*

**math **

Suppose you are exchanging currency in the London airport. The currency exchange service there only makes transactions in which one of the two currencies is British pounds, but you want to exchange dollars for Euros. Thus you first need to exchange dollars for British pounds...
*Tuesday, February 3, 2015 by Anonymous*

**Chemistry**

Cola drinks have a phosphoric acid content that is described as `from 0.057% to 0.084% of 75% phosphoric acid, by mass." Estimate the pH range of cola drinks corresponding to this average range of H3PO4 content. I am having trouble with the wording of this question, I ...
*Tuesday, February 3, 2015 by Ken*

**algebra**

michael purchased a certain number of shares of one stock for a total of $1400. The second stock was selling for 6$ less per share. Michael could have brought 3 more shares of the second stock for the same amount of money. How many shares of the first stick did michael ...
*Tuesday, February 3, 2015 by bobby*

**MATH**

THE FIRST AND LAST TERMS OF AN ARITHMETIC SERIES IS 5 AND 61 RESPECTIVELY WHILE THE SUM OF ALL THE TERMS IS 957. DETERMINE THE NUMBER OF TERMS IN THE SERIES.
*Tuesday, February 3, 2015 by CLARENCE KHUMALO*

**Physics**

A particle leaves the origin with an initial velocity of 4.90 m/s in the x direction, and moves with constant acceleration ax = -2.70 m/s2 and ay = 3.90 m/s2. How far does the particle move in the x direction before turning around? What is the particle's velocity at this ...
*Tuesday, February 3, 2015 by Anh*

**Math**

Randy had a sheep that started eating more and more as each day passed. on the first day, Tandy's sheep ate 5 carrots. On the second day, Randy's sheep ate 11 carrots. On the third day, the sheep ate 18 carrots. And on the fourth day, the gluttonous sheep ate 26 ...
*Tuesday, February 3, 2015 by Erika*

**math work for workeys**

Ok so I have an example and I used it for my work. First I'll show the example. Multiply a mixed number with a whole number. 4 times 2 and 1/8 . You multiply 4 times 2 and 4 times 1/8. Get 8 + 4/8. Simplified and got 8 and 1/2. The problem that I got was. You are a lead ...
*Tuesday, February 3, 2015 by andrea*

**math**

The second and fifth terms of a geometric progressions are 16 and 2 respectively. Determine the common ratio and the first term
*Tuesday, February 3, 2015 by kudu*

**algebra**

Solve. Simplify your answer. Type an exact answer using radicals as needed. y^2 + 31 = 12y Solution y = {8.236067978, 3.763932022} 1. y =(12-√20)/2=6-√ 5 = 3.764 2. y =(12+√20)/2=6+√ 5 = 8.236 Which would be the correct way to answer this equation, the ...
*Tuesday, February 3, 2015 by slomo*

**algebra**

the sum of two numbers is 21. The first number is 2/5 of the second number. what are the numbers? Help, I have been trying to figure this out for two hours and my eyes are starting to cross!! Please and Thank you.
*Tuesday, February 3, 2015 by slomo*

**chemistry**

The fluorocarbon compound C2Cl3F3 has a normal boiling point of 47.6 ∘C. The specific heats of C2Cl3F3(l) and C2Cl3F3(g) are 0.91 J/g⋅K and 0.67 J/g⋅K, respectively. The heat of vaporization for the compound is 27.49 kJ/mol. Calculate the heat required to ...
*Monday, February 2, 2015 by Tori*

**English**

Posted by rfvv on Tuesday, January 27, 2015 at 10:03pm. Is he doing well in class? 1. - No, he isn't. You see, he can't read or write. 2. - No, he isn't. You know, he can't read or write. ----------------------- Are both the same? Which one is commonly used, &#...
*Monday, February 2, 2015 by rfvv*

**math**

the track at our school is 440 yards long. it took Maya 10 minutes to jog around the track 4 times. find her speed in miles per hour. I first found out that r=d/t then we converted minutes to hour. we got 24 times around the track
*Monday, February 2, 2015 by E6*

**Language Arts**

Which word best describes the tone of the following lines from "New World"? First Man, behold; the earth glitters with leaves; the sky glistens with rain. A. Appreciative B. Disgusted C. Puzzled D. Surprised Is the answer A? Thank you
*Monday, February 2, 2015 by Callie*

**Physics**

As it passes over Grand Bahama Island, the eye of a hurricane is moving in a direction 57.0° north of west with a speed of 40.0 km/h. (Let i hat represent east and j hat represent north.) (a) What is the unit-vector expression for the velocity of the hurricane? It ...
*Monday, February 2, 2015 by Troy S*

**maths**

The first term of a g.p is twice it's common ratio, find the sum of the first two term of the progression, if it's sum to infinity is 8
*Monday, February 2, 2015 by toni*

**Math**

In “Adventures of Isabel,” how is the doctor different from Isabel’s other enemies—the bear, the witch, and the giant? He is Nice to Her He Frighten Her He gets killed He may be Real Witch one pls? I think It's The first one..
*Monday, February 2, 2015 by Chris*

**acceleration**

Col. John Stapp led the U .S . Air Force Aero Medical Laboratory's research into the effects of higher accelerations. On Stapp's final sled run, the sled reached a speed of 284.4 m/s (632 mi/h ) and then stopped with the aid of water brakes in 1.4 s . Stapp was barely ...
*Monday, February 2, 2015 by Anonymous*

**english**

Vehicle backover injuries and deaths occur when someone, without a driver’s knowledge or awareness, is positioned behind a vehicle as the driver is backing out of a driveway or other parking spot. Most victims of backovers are the elderly and children. 2 To add to the ...
*Monday, February 2, 2015 by Robb4301*

**algebra**

Factor by grouping even though it would seem reasonable to first combine like terms. 30b^2 + 25b + 36b + 30 = This practice question I have no clue how to do, please help!! Thank you
*Monday, February 2, 2015 by slomo*

**math**

The first, the third and the seventh terms of an increasing arithmetic progression are three consecutive terms of a geometric progression. In the first term of the arithmetic progression is 10 find the common difference of the arithmetic progression
*Monday, February 2, 2015 by kudu*

**Economy**

Consider a competitive firm with a total cost function given by TC(q)=q^2/1000. Suppose that, in order to incentivize higher production, the government decides to refund firms for their cost of producing the FIRST q units produced, up to 1000 of them. What is the LARGEST ...
*Sunday, February 1, 2015 by qwerty*

**L.A.**

To which sense do the following lines from "Grandma Ling" appeal? and there I faced my five foot height, sturdy legs and feet square forehead, high cheeks, and wide-set eyes A. hearing B.taste C. sight D. smell 2. which word best describes the tone of the following ...
*Sunday, February 1, 2015 by Anonymous *

**Chemistry **

The age of wine can be determined by measuring the trace amount of radioactive tritium, 3H, present in a sample. Tritium is formed from hydrogen in water vapor in the upper atmosphere by cosmic bombardment, so all naturally ocurring water contains a small amount of this ...
*Sunday, February 1, 2015 by Anonymous*

**writing**

memorandum help. help to make this better readable for the viewer. Purpose Alternative fuels are becoming an important area of research. There are two main reasons researchers are looking for a new and reliable fuel source. The first is to combat the reliance of the U.S on ...
*Sunday, February 1, 2015 by Glenn*

**4th grade math**

Jake wants to distribute 543 marbles equally among 7 of his friends. In what place is the first digit of the quotient?
*Sunday, February 1, 2015 by Ali*

**Healthcare finance**

You are considering starting a walk-in clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) $400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000 Administrative ...
*Sunday, February 1, 2015 by Tyanna*

**Healthcare finance**

You are considering starting a walk-in clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) $400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000 Administrative ...
*Sunday, February 1, 2015 by Tyanna*

**Healthcare Finance**

You are considering starting a walk-in clinic. Your financial projections for the first year of operations are as follows: Revenues (10,000 visits) $400,000 Wages and benefits 220,000 Rent 5,000 Depreciation 30,000 Utilities 2,500 Medical Supplies 50,000 Administrative ...
*Sunday, February 1, 2015 by Tyanna*

**physics**

A 25 kg cannon ball is fired from a cannon with muzzle speed of 1520 m/s at an angle of 35.5 ◦ with the horizontal. The acceleration of gravity is 9.8 m/s 2 . Use conservation of mechanical energy to find the maximum height reached by first ball. Answer in units of m. I ...
*Sunday, February 1, 2015 by keegan *

**Math**

An airplane in Australia is flying at a constant altitude of 2 miles and a constant speed of 600 miles per hour on a straight course that will take it directly over a kangaroo on the ground. How fast is the angle of elevation of the kangaroo's line of sight increasing when...
*Sunday, February 1, 2015 by Dee*

**English**

Can you check my answers to see if they are right and if not, help me on it? These questions begin with the paragraph starting with "Now was heard again the clangor of music ...." 1. In the first two paragraphs, the narrator conveys his mood of the market-place by ...
*Sunday, February 1, 2015 by Jessica*

**writing**

Need help with Achieving a Readable Style. Memorandum TO: Jerry Bradshaw DATE: March 29, 2011 FROM: Bill Jones SUBJECT: The Best Approaches in Alternative Fuel Research Purpose Alternative fuels are becoming an important area of research. There are two main reasons researchers...
*Sunday, February 1, 2015 by Glenn*

**Math**

Proove that: a)2^(1/2) is not rational. b) prove that 2^(1/3) is not rational. I have managed to prove the first part, but i am stuck on the second can someone give me an hint please?
*Sunday, February 1, 2015 by arthur*

**chem**

Calculate the wave length in amsrong unit of the first spectra line in the bama series for Li2 take R= 109766rcm i tried using this formular 1/lander = Z^2R(1/n1^2-1/n2^2) then Z is 3, n1 = 2 n2= 3
*Sunday, February 1, 2015 by whyte*

**math **

The sum of the first 10 term of an arithmetic sequence is 145 and the sum of the fourth and ninth term is five times the third term. Determine the first term and constant difference.
*Sunday, February 1, 2015 by matso *

**Math- Vector Calculus**

A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's profit, as a ...
*Saturday, January 31, 2015 by Javier*

**Program Designs**

The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design Visual Logic Flowchart for a program that accepts data about an ad: customer ...
*Saturday, January 31, 2015 by Joel*

**physics II**

A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site for the first and the second bursts of sound.
*Saturday, January 31, 2015 by ANA*

**Physics II**

Please can anyone explain. Thank you. A rocket is launched vertically from ground with a constant acceleration. If the rocket emits a burst of sound every five seconds after launching, find the difference of intensity levels observed at the launching site for the first and the...
*Saturday, January 31, 2015 by ANA*

**reading**

Scientists generally agree that Earth is getting warmer due to what's called the greenhouse effect. A greenhouse used for plants stays warm because sunlight and heat coming through the glass roof are mostly trapped. The heat doesn't radiate back into the atmosphere ...
*Friday, January 30, 2015 by Anonymous*

**psychology**

1. The most common of all of the psychological disorders is A. bipolar disorder. B. acute stress disorder. (C). depression. D. schizophrenia. 2. In the Freudian psychoanalytic perspective, the id is to the pleasure principle as the ego is to the _______ principle. A. primary B...
*Friday, January 30, 2015 by Anonymous*

**psychology**

A company supervisor asks for volunteers from the first shift to help assemble a new binding machine that must be on-line within the next 24 hours. Grady lifts his chin and his shoulders, nods, and says, "I can do it." In the social cognitive perspective of Albert ...
*Friday, January 30, 2015 by Anonymous*