Friday

February 27, 2015

February 27, 2015

Total # Posts: 566

**College physics**

A student has built a 20-cm-long pinhole camera for a science fair project. She wants to photograph the Washington Monument, which is 167 m (550 ft) tall, and to have the image on the film be 5.0 cm high.
*July 30, 2010*

**stats**

A financial institution wishes to estimate the mean balances owed by its credit card customers. The population standard deviation is estimated to be $300. If a 98 percent confidence interval is used and an interval of ±$75 is desired, how many cardholders should be ...
*July 7, 2010*

**marketing opportunity cost**

Maurice receives $100 as a birthday gift. In deciding how to spend the money, he narrows his options down to four choices: Option A, Option B, Option C, and Option D. Each option costs $100. Finally he decides on Option B. The opportunity cost of this decision is __________. A...
*July 7, 2010*

**stats**

Hess, Inc. sells a single product with a contribution margin of $12 per unit and fixed costs of $74,400 and sales for the current year of $100,000. How much is Hess’s break even point?
*July 7, 2010*

**career**

i think i would do the same thanks
*May 24, 2010*

**career**

If two jobs are upon you which one do you take the more sucessful one which you do not like the actions taking place or the less sucessful one which you kinda like.
*May 24, 2010*

**world history**

thank you you're awesome
*May 24, 2010*

**world history**

Who was the Columbian Exchange named after and why?
*May 24, 2010*

**AED 204**

rayna,try something that you think is a problem in your school that can relate to this.
*May 24, 2010*

**math 7th grade**

A(-3,4) ---> A'(3,4) B(-5,2) ---> B'(5,2) im a seventh grade math teachers daughter i should know
*May 24, 2010*

**Statistics**

an experiment consists of 4 tosses of a coin.denoting the outcomes HHTH,THTT,..and assuming that all 16 outcomes are equally likely, find the probability distribution for the total number of heads.
*May 19, 2010*

**Literature**

give 5 differences and 3 similarities between plays and novels
*May 18, 2010*

**Physics**

Two charged smoke particles exert a force of 4.2x10^-2 N on each other. What will be the force if they are moved so they are only one eighth as far apart? F= 4.2x10^-2 N K= 8.99x10^9 e= 1.6x10^-19 Do I solve for r even though they're asking me to find the force?
*May 14, 2010*

**Intermediate Accounting**

I had a problem with this question too, do a search for Ch6 since they won't let me post websites here. Look at the bottom of the examples and I think it will make it a little more clear.
*May 11, 2010*

**maths**

consider the quadratic functon y=-3(x-1)(x+2)
*April 29, 2010*

**Physics 100**

A bat flying in a cave emits a sound and receives its echo 0.25 s later. How far away is the cave wall?
*April 25, 2010*

**fc college**

Suppose you took loan from a bank of amount 800£ at 8% interest compounded semi-annually for three years. Find the compound interest.
*April 23, 2010*

**trig**

Verify the identity sin 3x cos 3x = 1/2 sin 6x can you show step by step please
*April 19, 2010*

**Langusge Arts**

Can you find 3 metaphors and 10 alliterations in this poem? THE Witch 1.She comes back night, in fearsome flight, 2. In garments black as pitch, 3.The queen of doom upon her broom, 4.The wild and wicked witch, 5.A cackling crone with brittle bones 6.And desiccated limbs, 7.Two...
*April 14, 2010*

**--------**

Using the following letters once, what word can you make: A,E,M,R,S,S,T.
*April 7, 2010*

**language arts/research paper topic**

i myself need a third idea to do a research project on as a 7th grade advanced english student so far i have abusive teenage relationships , and anastasia romanov
*April 6, 2010*

**math**

A weight attached to a spring is pulled down 4 inches below the equilibrium position. Assuming that the frequency of the system is 8/pi cycles per second, determine a trigonometric model that gives the position of the weight at time t seconds.
*April 5, 2010*

**world literature**

How does world literature effect the U.s society?
*April 5, 2010*

**Probability/Stas**

There are 20 red yellow and green tiles in a bag. 1/2 of the tiles are not yellow. 1/5 of the tiles are red. What is the probability of randomly selecting a colored tile from the bag that is NOT green?
*March 31, 2010*

**accounting**

B) Membership on the budgeting committee is restricted most often to accountants because the budget involves numbers. Master budget preparation is normally supervised by a committee. The budget committee is responsible for settling disputes among various departments over ...
*March 30, 2010*

**chemistry**

the answer is 11.17 or not
*March 25, 2010*

**chemistry**

How many grams of iron(III) nitrate.9H2O could be formed from the reaction of 3.676 g of iron with excess HNO3? Please can u explain? i try balance the question i couldnt.
*March 25, 2010*

**college**

Explain why, in terms of job performance and efficiency, knowing medical billing terms is critical for working in the health care field. Respond in at least 150 words and provide specific examples.
*March 13, 2010*

**math please help!!!!!!!!!!!!!!!!!!!!!**

$42
*March 2, 2010*

**math**

What is the probability of drawing a red checker from a bag of 9 black checkers and 6 red checkers, replacing it, and drawing it again?
*March 2, 2010*

**Math**

So Hannah wakes up at 7:56 , Beth wakes up at 7:03. Hannah has breakfast at 8:36 and Beth has Breakfast at 7:50. Problem 1 : How many minutes more did Hannah wake up from Beth. 7:56 -7:03 0:53 Problem 2 : Is 8 : 36 to 7 : 56 I'm not understanding!
*March 1, 2010*

**math**

HOW DO i SET THIS UP AS A PROPORTION? 2,640 FT=X MILES
*February 24, 2010*

**music**

it is a vowel used to replace a vowel and constanant for ex. down, using a diphong d-AH-n but it still sounds the same while you are singing
*February 18, 2010*

**English**

look them both up and compare one to another.
*February 18, 2010*

**Earth Science**

degrees
*February 18, 2010*

**spanish**

go to google and type in babblefish it will translate it and all you do is figure out the rest and translate it back into spanish
*February 18, 2010*

**english**

yes i would say if gossipy is a word
*February 18, 2010*

**english**

check and see if gossipy is a word
*February 18, 2010*

**english**

no you misspelled a couple words
*February 18, 2010*

**circumference**

area or circumference?
*February 18, 2010*

**choir/language**

what language is the song bonse aba in? im thinking zambian am i right?
*February 17, 2010*

**math**

5 hundreths
*February 16, 2010*

**thermal energy/science**

fluids transfer heat by convection
*February 16, 2010*

**thermal energy/science**

on a cold day ,closing the windows keep the room warmer . why i need scientific and i dont know any
*February 16, 2010*

**Math**

sometimes
*February 16, 2010*

**1st grade**

i need more information im thinking shelter
*February 16, 2010*

**ancient world history**

thank you
*February 16, 2010*

**ancient world history**

what are gargoyles and grotesques?
*February 16, 2010*

**science**

we would not have all the resources that we would need today for every day life effecencies such as natural gas and oil
*February 16, 2010*

**math**

what does this sign(^)mean?
*February 16, 2010*

**geometry**

you can use a 360 degree protractor.or you can use a regular protracto and do a couple more steps in math
*February 16, 2010*

**math**

thank you i get it now your awesome
*February 16, 2010*

**math**

damon i need to now where you got 1/3 from
*February 16, 2010*

**math**

thank you!
*February 16, 2010*

**math**

A box has a volume of 48 cubic cm. A similiar box has volume of 6 cubic cm. what is the scale factor between each box?
*February 16, 2010*

**Math/Algebra**

a=b*h/2 a=30*20/2 a=60/2 a=30sq ft 30*3=90 the glass will cost?
*February 16, 2010*

**calculus**

Use the Table of Integrals to evaluate the integral (x sine(6x^2)cos(7x^2)dx)
*February 14, 2010*

**math**

kdjsalkdas
*February 1, 2010*

**college algebrall**

f(x)=4x^2-8x+=8x-8
*January 10, 2010*

**college algebrall**

f(x)=3x^2-18x+6=6x-18
*January 10, 2010*

**social studies**

i dont know
*December 13, 2009*

**probability**

hi! how would you figure out a problem where you are given a probability of success for 12 people and you are trying to find the probability of success for 1 person?
*December 8, 2009*

**criminal justice**

why is it important information for the correctional staff to know if the subject have any marks?
*December 6, 2009*

**Algebra**

Why does this happen? A=3 and b=2 A+b=c is the equation. Multiplying both sides of the equation makes the equation a^2+2ab+b^2 which is equal to a^2+ab-ac=-ab-b^2+bc Dividing by (a+b-c) we find a=-b or 3=-2 Why?
*December 3, 2009*

**Probability again**

A bag contains 5 yellow balls, 5 orange balls, 6 white balls and 6 red balls. Five balls are drawn and NOT replaced each time
*November 29, 2009*

**algebra**

thanks!
*November 17, 2009*

**algebra**

how would i figure out a problem like: a^2 + b^2 = 5^2 is there a certain method to figure this out?
*November 17, 2009*

**Math**

I dot'n know
*November 16, 2009*

**chemistry**

The Measured voltage of the cell Pt H2 (1.0atm) H+ // Ag+ (1.0M) Ag ia 1.02 V at 25degrees. Gven E cell is 0.80V, calculate the pH of the solution.
*November 2, 2009*

**economics**

(A) “Market demand for wheat is relatively stable over time but market supply of wheat is very much influenced by the weather. For example, a natural drought decreases the supply of wheat and pushes up its prices while a bumper crop can severely depress wheat prices. Acts...
*October 31, 2009*

**Physics - HELP**

15.12
*October 27, 2009*

**Physics**

A 15-kilogram block is sliding on a dry, level surface with a coefficient of dry sliding friction of 0.3. The initial speed of hte block is 10/m/sec. How far does the block slide before it stops?
*October 15, 2009*

**chemistry**

apply write an expression for the quantity 506,000 cm in which it is clear that all the zeros are significant.
*October 4, 2009*

**math**

How did you come up with this answer?
*October 3, 2009*

**social studies**

a person who is running away is a
*September 30, 2009*

**science**

I've thought of that but I'm not sure if I was right. Thank you so much!
*September 23, 2009*

**science**

What changes in diet would allow a growing human population to be supported without any further increase in farmland? Explain your answer. help me please :(
*September 23, 2009*

**science**

DDT is stored in body fat and remains toxic for many years. Explain why these characterestics are undersirable in a pesticide. What characteristics would you want in a pesticide to make it less harmful to non-pest organisms?
*September 23, 2009*

**app. math**

Given the following data set, which measure of central tendency is the greatest ? {2,4,6,8,10,12}
*September 21, 2009*

**9th grade SCIENCE**

what is the three maining of science
*August 25, 2009*

**physics**

"A rod with length L , mass m and resistance R slides without friction down parallel conducting rail of negligible resistance . the rails are connected together at bottom, forming a conducting loop with the rod the plain of the loop makes angle Z wih horizontal , a ...
*July 3, 2009*

**12th grade math**

Below is a set of at least two related math/science "words" with their letters combined and arranged in alphabetical order. When you successfully unscramble the letters into the component words, there will be can additional word that should be in the set. That ...
*April 10, 2009*

**11th grade math**

Below is a set of at least two related math/science "words" with their letters combined and arranged in alphabetical order. When you successfully unscramble the letters into the component words, there will be can additional word that should be in the set. That ...
*April 10, 2009*

**math**

Below is a set of at least two related math/science "words" with their letters combined and arranged in alphabetical order. When you successfully unscramble the letters into the component words, there will be can additional word that should be in the set. That ...
*April 10, 2009*

**Physics**

what
*March 26, 2009*

**Chemistry**

How many moles of HNO3 are required to make 250mL of a 2.4M solution? How many grams of KOH are required to make 125mL of a .50M solution?
*March 4, 2009*

**Chemistry**

What is the molarity of a solution with 3.5mol of CaCl2 in 1.89L of solution What is the molarity of a solution with 16g of CH3OH in 487mL of solution
*March 4, 2009*

**manegerial econimics**

1 JQ sells ties and currently has sales of 1,200 units a month, producing a revenue of £36,000. It competes with KR, who is now considering a price cut of 25%. The PED for JQ is –1.5 and the CED between the two products is 0.8. a) Calculate the effect of KR’s ...
*March 1, 2009*

**managerial economics**

1. JQ sells ties and currently has sales of 1,200 units a month, producing a revenue of £36,000. It competes with KR, who is now considering a price cut of 25%. The PED for JQ is –1.5 and the CED between the two products is 0.8. a) Calculate the effect of KR’s ...
*March 1, 2009*

**social studies**

what details show that athens developed a system of democracy
*February 5, 2009*

**12th grade bio**

The transition of the lips where the outer skinner and inner mucous membrane meet is called the _________ I looked it up and from what I read I believe it is the gingivae. Would that be correct. Thank you
*February 5, 2009*

**college Anatomy & Physiology**

The transition of the lips where the outer skinner and inner mucous membrane meet is called the _________ I looked it up and from what I read I believe it is the gingivae. Would that be correct. Thank you
*February 4, 2009*

**Math**

A new car depreciates an average of 22% in its first year of use. If the car was worth $16,000 when it was new, what will the car be worth after 1 year?
*January 23, 2009*

**collage algebra 1**

what is pi
*January 5, 2009*

**9th grade geography**

waht is the economy i nt the far northern region of russia based on
*December 8, 2008*

**high school**

If F(n) = F(n-1) + (n-1) F(5) = 11 What is F(1)?
*November 15, 2008*

**calculus**

Find the area of the largest rectangle with one corner at the origin, the opposite corner in the first quadrant on the graph of the line f(x)=20-5x , and sides parallel to the axes.
*November 3, 2008*

**Math**

The question is: The freezing point of helium is -272 degrees celsius. The original temperature of a sample of helium is 3 degrees celsius. a.How much must the temperature change to ensure that helium freezes? -AND- b.Assume the temperature changed at a stedy rate for 25 ...
*September 22, 2008*

**science please help me**

in classification system what does BASIS mean????????
*September 21, 2008*

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