Saturday

August 1, 2015

August 1, 2015

Total # Posts: 897

**8th Grade Algebra**

Tim and Sasha have a bag containing 7 red marbles, 3 blue marbles, 6 white marbles, and 4 yellow marbles. Tim reaches in, without looking, pulls out a marble, records the color, and then puts the marble back.Sasha then does the same thing. What is the probability that Tim and ...
*February 18, 2011*

**8th Grade Probability**

A box contains 6 red balls, 4 white balls, and 5 green balls. If three balls are drawn in succession without being replaced, what is the probability that they are drawn in the order red, white, green?
*February 14, 2011*

**8th Grade Algebra**

If Julie draws a card from a standard deck of well-shuffled playing cards, what is the probability that he draws either an ace or a heart?
*February 14, 2011*

**8th grade Algebra**

In a drawing for a dvd player, there are 100 tickets in a box.Five of the cards are marked with a star and the rest are marked with an X. To win, Carmen must draw two cards, without replacement, both of which are marked with a star. What is the probability that Carmen will win...
*February 14, 2011*

**chemistry**

Given: hexane- -density at 25 degrees Celsius (.660g/ml) -Vapor pressure of pure substance at 25 degrees Celsius (150 torr) -heat if vaporization (21.0 kj/mol) -55 mL What mass of hexane vaporizes at 25 degrees Celsius?
*February 8, 2011*

**ecology**

Were should I look for info on land and aquatic biomes, if all I want to know is the plats that grow there, and the animals that live there, as well as the annual ammount of rainfall and average temp. without having to do a lot of reading.
*February 8, 2011*

**Literary Analysis**

I need help "translating" this part into more simple english from the poem One Step at a Time by Joseph Morris. Here is the part: "He will stand upon Life's summit and will know that joy sublime which is his alone who dares to prove his soul."
*February 3, 2011*

**8th grade Algebra**

The nearest would be 18. Right?
*January 31, 2011*

**8th grade Algebra**

Marianna's rectangular garden is 15 yards long and 10 yards wide. She wants to stretch a wire for hanging lights from one corner of the garden to the opposite. About how long should the wire be?
*January 31, 2011*

**science**

When you freeze water, 80 calories of heat are released into the surroundings for every gram of water that freezes. This is known as the "latent heat of fusion" of water, which is 80 cal/g. Heat of fusion is a characteristic property. Theoretically, if you could &...
*January 31, 2011*

**8th grade Algebra**

Sharon and her camping group hiked 6 miles due north, stopped for lunch, and then hiked 8 miles due west, stopping at ther campsite for the night. What is the straight line distance from their original starting place to the campsite?
*January 30, 2011*

**Algebra 1**

A rectangular piece of art is 4 meters wide and 6 meters long. It is surrounded by a uniform sidewalk. If the area of the uniform sidewalk is 39 square meters, how wide is the sidewalk
*January 26, 2011*

**11th grade math**

How do you do Absolute Value Functions with graphs?
*January 13, 2011*

**chemistry**

What is the difference between a length on 2 cm and a length of 2.0 cm?
*January 12, 2011*

**math**

what is symmetry
*January 10, 2011*

**3rd grade Math**

what is symmetry
*January 6, 2011*

**related rates problems**

Water pours out of a conical tank of height 10 feet and radius 4 feet at a rate of 10 cubic feet per minute. How fast is the water level changing when it is 5 feet high?
*December 30, 2010*

**related rates calculus problem**

A balloon is being filled with air at a rate of 3 cubic meters per minute. Find the rate at which the radius is changing when the volume is 113.0973355 cubic meters.
*December 30, 2010*

**COMP/160 College**

I need help with writting sentences using three comparatives and superlatives, about personal finance
*December 29, 2010*

**Algebra2**

how to solve a matrice when it's like b21 and it givec you to sets of matrices like AND IT SAYS TO ID EACH ELEMENT A.)O -1 B.)6 -3 1/2 1.5 3 AND 7 -2
*December 29, 2010*

**us history**

Thank you for the start. One last question....what is a philosophical ideal??
*December 26, 2010*

**us history**

Ms. Sue, how should I begin to try to find answers for these points.
*December 26, 2010*

**us history**

I need help trying to figure out how to even begin an essay. Write in the perspective of a Pennsylvania farmer in the 1700s. - The philosophical ideals embodied in the Declaration of Independence. - The similarities and differences of the philosophies in the Article of ...
*December 26, 2010*

**British Lit.**

I need to explain Beowulf's speech lines 365-428. topic audience and tone of the speech.
*December 21, 2010*

**japanese**

What do the following sentences mean translated to English? Kore no han wa watashi no desu To no soto ni obaki ga imasu
*December 20, 2010*

**8th grade math**

Can you please check my answer? A spherical balloon has a volume of 268 cubic cm. If more air is pumped in so that its radius is 3 times as long, what is its new volume? My answer: 2,412 cubic cm
*December 13, 2010*

**8th grade math**

Greta is designing a page for the yearbook and needs to know the area of her 8 in. x 10 in. picture after she crops it. If she makes the length and width of the picture 5/8 of the original, how does the area of the picture change?
*December 13, 2010*

**com/156**

can you help on how to write an outline for credit card companies should not be on campus marketing to college students
*December 3, 2010*

**Business**

Is it possible for companies both to maximize financial value for shareholders and to act irresponsibly in the communities in which they operate, to treat their employees, customers, and suppliers well, and to engage in activities that are good for the environment? In your ...
*December 3, 2010*

**8th Grade Math**

Is the answer 6396 square yards?
*November 28, 2010*

**8th Grade Math**

Can you please check my answer? An American football field is a rectangle 120 yards long (including both end zones) and 53 1/3 yards wide. What is the area of an American football field? my answer: 6360 square yards
*November 28, 2010*

**chemistry**

Calculate how much Hg in a reaction that produces 87.4 g O2 using: 2HgO produces 2 Hg + O2
*November 24, 2010*

**Biology (URGENT PLEASE!)**

Radio uses technology
*November 24, 2010*

**Biology (URGENT PLEASE!)**

This is a question of my last biology test: Name at least one technological device that would have not been invented without scientific knowledge: A.Radio B.Ruler C.Knife D.None of the above I answered D but got a cross for it. So can you please help me to solve what is the ...
*November 24, 2010*

**Biology**

Are club mosses gymnosperms? ex. horse tail (ferns) What are club mosses used for? Thank you
*November 24, 2010*

**Biology**

What are the importance of seedless plants?
*November 24, 2010*

**finance mortgage payment**

Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $195,000 home if you put 20% down and financed the remaining with a ...
*November 21, 2010*

**Chemistry Help!!!**

What is the maximum number of electrons that can have n=4, mi= -1 in an atom? Also, explain how you got that answer. I am confused.
*November 21, 2010*

**College Chemistry**

I'm sorry but this answer didn't work...
*November 20, 2010*

**College Chemistry**

How many milliliters of 1.55 M NaOH must be added to 125 mL of .19 M NaH2PO4 to make a buffer solution with a pH of 6.90? I have attempted to solve this with no success, as this is an online homework assignment that requires an exact answer. Hoping that you will be able to ...
*November 20, 2010*

**physic**

thank you so much that was helpful =)
*November 17, 2010*

**physic**

A 25kg object is located on a table near the surfuce of the earth. The coefficient of the kinetic friction between the surfuces is 0.30 and the horizontal force applied is 300n. Can you answer this?
*November 17, 2010*

**physic**

how do you find the acceleration for kinetic friction?
*November 17, 2010*

**Trigonometry**

How do you solve the equation -3x^2 + 3 = 0
*November 16, 2010*

**algebra**

how do you graph a fraction?
*November 16, 2010*

**9th grade algebra **

solve.(polynomials) 3(x-5)=45
*November 16, 2010*

**algebra**

6x-(2x-3)=31
*November 16, 2010*

**8th grade math**

Solve for x. 6 - x = -10 + 7 my answer: x = 9
*November 13, 2010*

**8th grade Math**

Can you please check my answer? Solve for x. 7- 7/2x = -5 my answer: x = 42
*November 13, 2010*

**Need help**

I have been trying to work this out with no success - any help would be great - Thanks
*November 12, 2010*

**College Chemistry**

1.14g of sodium bicarbonate (NaHCO3)is dissolved in 500 mL H2O. What is the Ph of the solution? Assume constant volume.
*November 12, 2010*

**College Chemistry**

Thank you for your help!!
*November 10, 2010*

**College Chemistry**

A buffer solution contains 0.120M acetic acid and 0.150M sodium acetate. a. How many moles of acetic acid and sodium acetate are present in 50.0 ml of solution? b. if we add 5.55 mL of 0.092M NaOH to the solution in part (a) how many moles of acetic acid , sodium acetate, and ...
*November 10, 2010*

**Chemistry**

Thanks!
*November 10, 2010*

**Please help**

Need answer tomorrow for pre-lab Thanks
*November 10, 2010*

**Chemistry**

Discuss how to prepare 250.0 ml of an ammonium-ammonia buffer (pkb = 4.70), ph = 9 and total concentration of 0.05M using 0.10 M ammonium chloride and 0.10M aqueous ammonia
*November 10, 2010*

**british literature**

Whit, I am in the same subject you are in. Would you please give me your email address and we can help each other. I need help also. Elizabeth
*November 10, 2010*

**8th grade math**

Thanks Ms. Sue and Erin for checking my answers! :)
*November 8, 2010*

**8th grade math**

A company reported that it made a profit of 8% as a percentage of sales and that its sales revenue was $25,000. How much profit did the company make? my answer: $2,000
*November 8, 2010*

**8th grade math**

A company's cost of doing business in a recent month was $18,000. Their revenue on sales for that month was $27,000. What percent profit as a percentage of sales did the company earn? my answer: 33 1/3%
*November 8, 2010*

**8th grade math**

Can you please check my answer? Selena recieved $42 commission for selling a computer for $1400. What percent is her commission? my answer: 3%
*November 8, 2010*

**8th grade math**

Can you please check my answer? Marcia wants to make muffins and needs 3/4 cup of a cup of sugar. She discovers, however,that she has only 2/3 of a cup of sugar. How much more sugar does she need? my answer: 1/12 of a cup
*November 8, 2010*

**8th grade Math**

16/45?
*November 8, 2010*

**8th grade Math**

Can you please check my answers? Wally ordered a pizza. He ordered 4/9 of the pizza with sausage, 1/5 of the pizza with extra cheese, and the rest of the pizza with bell peppers. How much of the pizza had bell peppers on it? My answer: 29/45 of a pizza
*November 8, 2010*

**Physics**

A 107 kg clock initially at rest on a horizontal floor requires a 673 N horizontal force to set it in motion. After the clock is in motion, a horizontal force of 522 N keeps it moving with a constant velocity. (a) Find ìs between the clock and the floor. 1 (b) Find &...
*November 7, 2010*

**Science**

Does my hypothesis match with my intro? I'm writing a lab report. Introduction: The intention of this lab is to find the pH of different household material. Boiled red cabbage juice will be used as the pH indicator. pH is the chemical potential of hydrogen and the scale of...
*November 4, 2010*

**Physical Science**

Water,Shampoo,and Milk's pH are tested neutral. Why is this a good thing?
*November 2, 2010*

**8th Grade Math**

Can somebody help me solve this problem? Simplify and evaluate the expression for y = 0, z = -1.5. -0.8z +0.005z(-0.001y - 3.1 + (-1.5z + 3))
*November 1, 2010*

**Physics**

Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above the Earth's surface if its mass is 1600 kg. I know that 1/16 of Fg is the answer but I can't seem to find out what the Fg is.
*October 28, 2010*

**Physics**

Calculate the force of gravity on a spacecraft 19200 km (3 earth radii) above the Earth's surface if its mass is 1600 kg. I know that 1/16 of Fg is the answer but I can't seem to find out what the Fg is.
*October 28, 2010*

**us history**

Did the American government’s actions at the turn of the 20th century support the ideals expressed in the Declaration of Independence?
*October 28, 2010*

**science**

a piece of furniture that weighs 500 newtons is pushed along the ground for a distance of 10 meters then lifted 2 meters above the ground into a truck. how much work is done if the force required to push the furniture is 150 newtons?
*October 24, 2010*

**Writing**

thanks!
*October 23, 2010*

**Writing**

Can you please check my citation? I'm trying to find out if it's correct. "How Deforestation Affects Us." Edu.udym. 11 Aug. 2008.web. 23 Oct. 2010. <url> (I'd put the url if jishka would let me)
*October 23, 2010*

**Writing**

I'm trying to cite an article from edu.udym. Should I put edu.udym on the citing or should I add the dot com to the end?
*October 23, 2010*

**Writing**

Thanks. I think I get how to do it now. :) If I need any more help I post my question.
*October 22, 2010*

**Writing**

Can you please check my citation? "Deforestation facts, Deforestation Information, Effects of Deforestation." National Geographic. n.p.,n.d. 10/22/10
*October 22, 2010*

**English Research**

Would the online National Geographic site be a periodical or a website? I'm trying to cite a source on an article from the site,but I don't know if it's a website or a periodical,it seems like both.
*October 22, 2010*

**8th Grade Writing**

Does this Introduction sound fine for an Argument essay? Forests probide many supplies that are essential in our lives. They give us oxygen, wood fiber for paper, herbs for medicine, and timber for building structures. Forest materials are so necessary that humans can't ...
*October 22, 2010*

**Writing**

Does my thesis statement sound ok? Deforestation should no longer go on, because endangered species are close to extinction, less oxygen is being produced, and global warming is turning into a bigger issue because of it.
*October 21, 2010*

**3rd grade**

yes because 7*2=14 and any even number can be divide them by 2 groups and another math sentence I have is 14/2=7
*October 20, 2010*

**chem**

This is how far i got 2330g *4.184J/g degree C *(100 degree C-unk) =537,000J so 9748.72J * unk =537,000J so 537000/9748.72=55.08 so 100-55.08= Initial temp of 44.92 degrees celsius :)
*October 20, 2010*

**CHEM**

is breaking an egg a chemical or physical change? is cooking an egg a chemical or physical change?
*October 17, 2010*

**Composition**

Reforestation or Deforestation?
*October 15, 2010*

**Composition**

Which topic do you think would be easier to research for an argument essay? Deforestation or Recycling?
*October 15, 2010*

**world civics**

provide 2 examples of the devastation diease caused
*October 13, 2010*

**physics**

Is the equation above used to determine the normal force exerted by the road on the car? When I used the equation I got (72)(9.8) - (72)(729)/88 = 1.2 (2 sig figs) This answer was incorrect. What am I doing wrong. And.... what equation can I use to figure out the 2nd part?
*October 11, 2010*

**physics**

A sports car of mass 950 kg (including the driver) crosses the rounded top of a hill (r = 88 m) at 27 m/s. Determine the normal force exerted by the road on the car. Determine the normal force exerted by the car on the 72-kg driver. Express your answer using two significant ...
*October 11, 2010*

**college Physics**

A car is traveling at 7.0 m/s when the driver applies the brakes. the car move 1.5m before it comes toa complete stop. if the car had been moving at 14m/s how far would it have continued to move after the brakes were applied? assume the braking force is constant. what is the ...
*October 10, 2010*

**Geographyand socity**

1. Meterology 2. Temperatures 3. Atmosphere 4. Hydrospere 5. The average yearly weather patterns in a given area. (I think these are correct.)
*October 5, 2010*

**Geometry**

for every letter n f(n) is added by the next number. 0,1 1,2 3,3 4,6, 5,10 6,15 7,21 8,28 9,34 10,43 11,53 12,64 13,76 14,89 15,103 16,118 17,134 18,151 19,169 20,188= answer
*October 3, 2010*

**MAT 116**

29/13u-18/13u 2/13v+16/13v 11/13u+18/13v= answer
*October 3, 2010*

**math**

it would look more of a rectangle but the sides should be thus: 6,6,7,7
*October 3, 2010*

**Physics**

i have done all my homework these 5 problems i could not understand.. my answers are due at midnight tonight im a senior in this physics course and math is generally my strong point but when it comes to things like this i try and i didnt get it so i posted the problem on here ...
*October 3, 2010*

**Physics**

A 160 N block rest on a table attached to a string and pulley. The suspended mass over the side of the table has a weight of 53 N. PART 1: What is the magnitude of the minimum force of static friction required to hold both blocks at rest? Answer in units of N. PART 2: What ...
*October 3, 2010*

**Physics**

omg thx so much!!!!
*October 3, 2010*

**Physics**

A car is traveling at 54.2 km/h on a flat highway. The acceleration of gravity is 9.81 m/s^2. PART 1: If the coefficient of kinetic friction between the road and the tires on a rainy day is 0.131, what is the minimum distance needed for the car to stop? Answer in unitsof m. ...
*October 3, 2010*

**Physics**

yay thank you!!
*October 3, 2010*

**Physics**

The board sandwiched between two other boards weighs 92.6 N. If the coefficient of friction between the boards is 0.587, what must be the magnitude of the horizontal forces acting on both sides of the center board to keep it from slipping downward? Answer in units of N.
*October 3, 2010*