Sunday

May 29, 2016
Number of results: 24,873

**Math 117**

Give exact and approximate solutions to three decimal places. (x-8)^2=49 I need step by step example on how to solve this AND input it into a calculator. Please!
*September 19, 2010 by Sabrina*

**art**

· Summarize the distinction between art film and popular cinema in 150 to 250 words. · Provide examples of each and explain why they fall into either category.
*October 13, 2010 by stephaine *

**Chemistry**

A mixture of gases collected over water at 14C has a total pressure of 1.198 atm and occupies 72 mL. How many grams of water escaped into the vapor phase?
*October 15, 2010 by Megan*

**biology**

7. If the baking soda had not been added, would there still have been a source of carbon dioxide being introduced into the water? Explain.
*October 28, 2010 by rosalie danenberg*

**math**

A circular sector of central angle theta and 9 cm radius can be fashioned into a paper cone with volume 100 cm^3. Find all possible values of theta.
*November 3, 2010 by caroline*

**Physics**

A hammer is used to pound a piece of sot metal into a new shape. If the metal is thermally insulated from its surroundings, will its temperature change due to the pounding?
*December 28, 2010 by Katherine*

**adv pre algebra**

the temperature of a substance increases by 10 degrees celsius in 5 minutes. write this as a unit rate. then convert into degrees fahrenheit per hour.
*January 9, 2011 by Anonymous*

**Math- Geometry**

A board 20 feet long is cut into two boards with lengths in ratio of 5 to 2. To the nearest tenth of a foot, how lng is the longer piece of the board?
*January 30, 2011 by meghan*

**consumer economics**

Phonecia deposits $300 into a simple interest account that pays 3%. After 7 months what will be the total value of her account? A.$309.00 B. 305.25 C. $321.00 D. $9.00
*February 14, 2011 by megan*

**physics**

a .250kg block of aluminum is heated to 100 C and then dropped into .60 kg of water that is initially at 20C. What is the equilibrium temperature of the system? The specific heat of aluminum is .22 kcal/kg C
*February 17, 2011 by Anonymous*

**science**

When you hit a nail into a board using a hammer, the head of the nail gets warm. In terms of kietic and thermal energy, describe why you think this happens.
*January 23, 2013 by lisa*

**3rd grade math**

Sheila wrote a division story. She asked how may equal groups 24 flowers could be put into. What information must she give about the groups?
*March 14, 2011 by Amy*

**prep chem**

How many milliliters of oxygen 2(g) will be produced at 720mmHg and 17 celsius if 0.460 grams of KClO3 are reacted in the reaction? Formula is 2 KClO3 --> 2 KCl + 3 O2(g) I know to change temp into K
*April 18, 2011 by Laura*

**physics**

a body weighing 40N drops freely from a hieght of 50m and penetrates into the ground by 100cm.find the average resistance to penetration and the time of penetration.
*September 21, 2011 by impulse and momentum*

**biology**

With regard to bringing solutes into the cell across the plasma membrane, discuss the advantages and disadvantages of diffusion, facilitated diffusion,active transport,and endocytosis.
*September 22, 2011 by Anonymous*

**economics**

An accountant deposits 100 per month into an account that pays 8% per year compounded quarterly ( no interperiod compounding) How much will she have in 10 years
*October 9, 2011 by t*

**Math**

Janice said that if you cut a cube into two parts you form 2 smaller cubes. Ling said that 2 rectangular prisms are formed. Who is correct? Explain.
*November 5, 2011 by Ethan*

**social**

Which group of people are drugging youths in California who are hired/ paid by employers? They also trick your families/ friends into drugging you. Victims are from Bay area.
*November 5, 2011 by Ave*

**Science(egg in vinegar) PLease check my answer**

what biological model does the egg represent? stomach it shows what happens to protein iif you put it into an acid.
*November 8, 2011 by Adam*

**physics**

You step into an elevator holding a glass of water filled to a depth of 7.0 cm. After a moment, the elevator moves upward with constant acceleration, increasing its speed from 0 to 2.8 m/s in 3.8 s.
*November 23, 2011 by x*

**calculus**

1. A sheet of cardboard 3 ft. by 4 ft. will be made into a box by cutting equal-sized squares from each corner and folding up the four edges. What will be the dimensions of the box with largest volume?
*December 18, 2011 by Yoona*

**math**

From the Periodic Table, 1 mole of aluminum weighs 27.0 g., Therefore; If 54.0 g of aluminum are placed into the beaker to react with copper(II) chloride, how many grams of the metal product will be produced?
*January 12, 2012 by chris*

**chemistry**

For the reaction, A = B + C, the rate law is kA]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant? a. 0.00450 s-1 b. 0.0290 s 1 c. 0.00530 s-1 d. 0.0150 s-1 e. 5.40 s-1
*February 17, 2012 by Dom*

**Chemistry**

1)For the reaction, A = B + C, the rate law is k(A). If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be transformed into products, what is the value of the rate constant? I was going to do 80/10 = 8 and then 8 times .70 but im not sure this is correct.
*February 20, 2012 by Hannah*

**maths**

if a regular payment is made quarterly into sinking fund,it accrues to $18258.53 after ten years.What is the annual percentage rate paid by the fund?
*April 17, 2012 by girma*

**physics**

From a cliff that is 8.2 m above a lake, a young woman (mass 42 kg) jumps from rest, straight down into the water. At the instant she strikes the water, what is her de Broglie wavelength?
*April 23, 2012 by Alisha*

**math**

A stone dropped into water produces a circular ripple which increases in radius at a rate of 1.50 m/s. How fast is the area increasing within the ripple when its diameter is 6.00m?
*April 26, 2012 by Anonymous*

**Healthcare**

Sentence below is passive voice. How can I turn it into active voice? After the person begins working in the organization, an evaluation process is done by human resources.
*May 7, 2012 by Archie *

**earth**

A satellite has a mass of 5.98*10^24 kg.if this satellite is t be placed into a circular orbit 300km above the earths surface,what speed,period and radial acceleration must it have
*August 13, 2012 by busi*

**Physics**

Leroy, who has a mass of 110 , is skateboarding at 9.4 when he smacks into a brick wall and comes to a dead stop in 0.2. Find his deceleration.Find the force of impact. (ouch!)
*September 12, 2012 by Jade*

**Math**

a factory has a machine which bends wire at a rate of 8 units of curvature per second. how long does it take to bend a straight wire into a circle of radius 5?
*September 24, 2012 by James*

**Chemistry**

A buffer was prepared by dissolving 22.61g of NaCLO2 into 0.100L of 4.00M aqueous HCLO2. Calculate the pH of the original Chlorous acid/chlorite ion buffer. Ka= 1.1 x 10^-2.
*December 3, 2012 by May*

**math**

if you deposits $1200 INTO A SAVING ACCOUNT that pays 1.5% annual simple interest if you don't withdrawals or deposits how much money will you save in two in a half year
*January 4, 2013 by stephika*

**Math**

Water is poured into cuboidal container at the rate of 80liter per min. If the volume of container is 144m^3,find the no. Of hours it takes to fill the reservior.
*February 5, 2013 by Simon*

**English**

If the sentence was: Ramai was so nervous that she had already dropped and ____ two dishes. What way would I write BREAK to make it fit into this sentence?
*February 23, 2013 by Kylie*

**physics**

From a cliff that is 8.9 m above a lake, a young woman (mass 44 kg) jumps from rest, straight down into the water. At the instant she strikes the water, what is her de Broglie wavelength?
*April 11, 2013 by PLEASE AND THANK YOU*

**chemistry**

Suppose that 2.00 moles of HCl in a 1.00L glass flask slowly decomposes into H2 and Cl2. When equilibrim is reached, the concentrations of H2 and Cl2 are both 0.214M. What is the Keq?
*May 28, 2013 by Anonymous*

**Math**

A rectangular rice land is to be fenced along 4 sides and in the middle to divide it into to 2 equal areas. If 200m of fencing is available, what is the maximum area to be fenced?
*September 6, 2013 by Khelany*

**Math**

There are 648 students in 5th grade at oak elementary school. For the upcming field trip,they need to be split into groups of 25. About how many groups are needed?
*September 12, 2013 by Nazariyah*

**Chemistry **

An aerosol can is empty, except for the propellant gas which exerts a pressure of 1.20 atm at 21 °C. If the can is thrown into a fire and heated to a temperature of 565 °C, what will be the pressure inside the hot can?
*October 15, 2013 by Blake*

**physics**

Leroy, who has a mass of 100kg , is skateboarding at 8.4m/s when he smacks into a brick wall and comes to a dead stop in 0.2 s. Find his deceleration. Find the force of impact. (ouch!)
*October 17, 2013 by cassie*

**chemistry**

A 0.411 mol sample of PCl5(g) is injected into an empty 4.65 L reaction vessel held at 250 °C. Calculate the concentrations of PCl5(g) and PCl3(g) at equilibrium.kc=1.80 at 250c
*November 10, 2013 by muna*

**psychology**

what might be some of the things that you could use as test items that would tap into this general form of intelligence that would not be overly affected by cultural matters? If not, why not?
*December 11, 2013 by t*

**Physics**

an object at rest explodes into three pieces of equal mass. one moves east at 20 m/s a second moves southeast at 30 m/s what is the velocity of the third piece??
*December 17, 2013 by Rani*

**math**

What does "give a brief explanation as to what kind of solution(s) you expect the linear equation to have: 18x+1/2=6 (3x+25). Transform the equation into a simpler form if necessary" mean?
*January 23, 2014 by Samantha*

**math**

What does "give a brief explanation as to what kind of solution(s) you expect the linear equation to have: 18x+1/2=6 (3x+25). Transform the equation into a simpler form if necessary" mean?
*January 23, 2014 by Samantha*

**Geometry**

Player hits the ball at point A an angle of 45 degrees on a pool table that measures 9’ by 4.5’. How many times will the bait a side of the table before going into a pocket?
*January 26, 2014 by Jenn*

**chemistry**

if you dissolve 20mg of alcl3 into 2.0 of a 2.5 molal nacl solution (density 1.08kg/l), what would be the mass concentration (ppm(weight)) of al3+ in the resulting solution?
*January 26, 2014 by Ashley*

**chemistry**

A sample of aluminum metal containing 9.1080 x 10 to the 25 power atoms is drawn into a cylindrical wire with radius r=0.833 mm. how long must the wire be in meters?
*February 2, 2014 by tricia*

**Business Calc**

We deposit $19000 into an account earning 3% interest compounded semiannually. How many years will it take for the account to grow to $47500 ? Round to 2 decimal places.
*March 8, 2014 by Jessica*

**math**

Mrs. Grace has 10 sandwiches that are 4 inches in diameter. They can fit exactly into a different box... Need to show work in box, help, can't seem to figure this out
*April 8, 2014 by Nancy*

**Math**

Angie needs to have $15,000 at the end of 6 years. How much should she deposit weekly into an ordinary annuity if it earns 6.5% interest compounded weekly?
*April 22, 2014 by Mai*

**Math**

Kurt cut pizzas into wedges measuring 40 degrees. If each person eats one piece of the pizza, how many people could he feed with with two whole pizzas?
*April 24, 2014 by Gab*

**physics**

A subcompact car, mass 1,000 kg, runs into and sticks to an at rest, 2,200 kg SUV. If their final speed is 4.7m/s ,what was the smaller cars initial speed? a) 67 m/s b) 30m/s c) 2.2 m/s d) 15 m/s
*May 23, 2014 by katie*

**Maths **

645.7 litre of water are poured into 8 empty tanks. What is the average amount of water in each tank? Give your answer in litres, correct to 1 decimal place.
*August 20, 2014 by Leonardo*

**INTSCIENCE**

The earth can be considered a heat engine because it receives heat from the sun and converts it into mechanical energy to produce winds and evaporate water. True False
*November 24, 2014 by Casey*

**science-chemistry**

if 1g of carbon dioxide is bubbled into 100g of a calcium hydroxide solution in a flask. what is the total mass of substance in the flask after the reaction is complete?
*April 18, 2015 by jasmine*

**Thermodynamics**

What is the ideal work for the separation of an equimolar mixture of methane and ethane at 175 C and 3 bar into product streams of pure gases at 35 C and 1 bar if Tsigma = 300 K?
*September 2, 2015 by Flynn*

**chem**

At 668K 1 mol each of CO and Cl2 are introduced into an evacuated 1.75 L flask. At equilibrium, the total pressure of the gaseous mixture is 32.4 atm. Calculate Kp. How to solve this ? Co+Cl2<>CoCl2
*September 19, 2015 by han*

**Child development **

Refers to breaking down complex skills into their component parts? A. Differentiation b. integration c. Motor skills d. Locomotion I am think b but am not sure if it right.
*October 2, 2015 by W*

**physical science **

If a runner's power is 400 W as she runs, how much chemical energy does she convert into other forms in 10 minutes? (You will need to rearrange the Power Equation.)
*December 15, 2015 by hollywood*

**physics**

A charge of 16.0 nC is uniformly distributed along a thin, flexible rod of length 31.0 cm. The rod is then bent into a semicircle, evaluate the electric field strength from the centre
*February 5, 2016 by niro*

**Trig Identities**

Why does cos^2(x)= 1/2cos(2x)+1/2? I am trying to integrate, but the answer key says to first rewrite the expression like the above. I don't get how to change cos^2(x) into that. Explain?
*February 21, 2016 by Betty*

**Math**

How to solve this problem? Here is what I have done so far. 12(1/2)% x (1/2)/(3/4) First i solved the fractions (1/2) x (4/3) =4/6 I changed the 12(1/2)% into a decimal by solving 1/2, which is .5 which equals to 12.5 Answer is 1/12 but I have no idea how it got to that.
*March 9, 2016 by Johny*

**interest**

Perry has an opportunity to put $12,000 into an investment with an APR of 5.6% compounded annually. How long will it take his investment to double? (round to one decimal place)
*April 10, 2016 by kelsey*

**Math **

How much interest would be earned on $24,664.64 if the owner invest the full amount into an annuity in a regular compounded -interest account with the term of 4 years .
*April 12, 2016 by Cheryl*

**Science **

Can someone check if these are right: Tell the reaction rate 1.)Question: one antacid tablet is placed in a glass of cold water, while another table is placed in a glass of hot water. Answer:TEMPERATURE 2.) Question: a mixture of baking powder, flour, sugar, and eggs is placed...
*January 14, 2014 by Kalie*

**Gr. 3**

I need help finding the main idea for my son's reading book. The title is Art Around Us. It goes like this Introduction: Art is all around us. It comes in every shape, size, & color. People who make art are called artists. They use paint, paper, clay, fabric, junk, wood, and ...
*January 17, 2008 by Rebecca*

**Math**

Please help with math!!!!!? 1. A bag contains 9 tiles numbered 1 to 9. P(4) = (1 point) . experimental; the result is found by repeating an experiment. . experimental; the result is based on the number of possible outcomes. . theoretical; the result is found by repeating an ...
*April 16, 2013 by Chico*

**chem**

a 2.50g sample of hydrate of calcium sulfate losses 0.523g of water when heated. what is the mass percent of water in the hydrate and the formula for the hydrate difference of the two masses divided by the initial mass. I believe Adam should reconsider his answer. mass percent...
*June 19, 2007 by mocha81*

**Science- Chemistry**

A test tube containing a mixture of compounds X, Y, and a small amount of Z weighs 25.4886 g. The tube is emptied into a beaker and the empty tube is reweighed, giving a value of 10.2586 g. The mixture is separated into two components by dissolving in water, filtering off the ...
*October 13, 2012 by Sonia*

**Health**

Writeacher, I need you help to rephrase and answer a question on the use of children in advertising. 1) I need to rephrase this: “ Advertisers want to reach into the hearts and minds of the people who are watching the ads. Today’s washing powders don’t just clean clothes, they...
*May 24, 2012 by Jack*

**Physics30**

Changing Momentum The illustrations show two ways of providing impulse to change the momentum of a vehicle. In the top illustration, the vehicle collides with a massive concrete barrier. In the bottom illustration, the vehicle collides with water-filled barrels. *two ...
*April 11, 2013 by alejandro*

**physic30**

Changing Momentum The illustrations show two ways of providing impulse to change the momentum of a vehicle. In the top illustration, the vehicle collides with a massive concrete barrier. In the bottom illustration, the vehicle collides with water-filled barrels. *two ...
*April 22, 2013 by alejandro*

**dress making **

1. Which one of the following is the most complete and accurate definition of fiber? A. A stringy substance from plants B. The hair of an animal C. Man-made threads and yarns D. Basic raw material from which fabric is made 2. An example of a natural fiber is A. nylon. B. ...
*January 25, 2013 by caitlin*

**chemistry**

how many grams of H2 (g) are produced by the reaction of 1.35 g Al with 75.0 mL of 3.44 M HCl Here is the way to do most of these stoichiometry/limiting reagent type problems. Step 1. Write a balanced chemical equation. 2Al + 6HCl ==? 3H2 + 2AlCl3 Step 2. Convert what you have...
*September 24, 2006 by brian*

**math**

a metre length of cable is cut into 3 strips and the first strip is 3.42 and the second strip was 0.75 how long would the 3rd strip be ?
*November 11, 2007 by samantha*

**Algebra**

Translate the following statement into an algebraic equaion. Let x represent the number. 6 times a number is 14 more than that number. I got 6x=x+14 is that right?
*December 17, 2007 by Christi*

**chemistry**

Assume you are in a lab with a test tube of sulfuric acid. You drop a piece of calcium into the tube. What do you observe happening in the tube? thank you
*January 24, 2008 by roma*

**math**

Crafts. Evette has 41 1/2ft of string. She wants to cut it into pieces3 3/4 ft long. How many pieces of string will she have? How much string remains, if any?
*September 2, 2009 by smmer*

**algebra**

a 3 1/2 foot piece of rope is cut into two pieces. one of these pieces is 8 inches shorter than the other. how long are the pieces?
*October 16, 2010 by yo dawga*

**math**

i am a number between 20 and 30. put me into 6 equal groups.ther is a even number in each group and one is left over. what number am i?
*February 8, 2011 by Anonymous*

**cosines**

I don't know how to reverse cosine decimals into angles. Can you please explain and help me solve these . cos A= 0.28571428571 A= cos B= 0.66666666667 B= cos C= 0.5238089523
*February 27, 2011 by Anon*

**Chemistry**

Redox reaction of cl2 --> cl ion and clo2- I split it up into two half reactions cl2-->2cl- and cl2-->2clo2-
*June 3, 2011 by Amy*

**Physics**

A mass of 0.40 kg is attached to a spring and is set into vibration with a period of 0.15 s. What is the spring constant of the spring? Answer in units of N/m what is the rearranged equation to get for k?
*February 16, 2012 by Anonymous*

**math**

A rectangular box is 16cm long and 10cm wide 960 1-cm cubes can fit into the box exactly what is the height of the box?
*April 23, 2012 by john*

**physics**

When a 82.0 kg. person climbs into an 1800 kg. car, the car's springs compress vertically 1.7 cm. What will be the frequency of vibration when the car hits a bump
*May 1, 2012 by coleman*

**scenice- Rock**

It says write a story about a rock. Where it came from? How it got into my yard? What wearthering and erosion affected the rock
*December 16, 2012 by Funke*

**computers**

Which type of USB connector is always plugged into the computer to connect an external device? a. type A B. type B c. Micro d. Mini
*May 24, 2014 by anon*

**Physics**

A vector is directed at an angle tangent above the +x axis, pointing into the first quadrant. If the x component of this vector is 10 m, the magnitude of the vector is?
*November 4, 2014 by John*

**Math**

A blimp flies at 60mph. A round trip of 40miles into the wind and 40 miles with the wind takes 90 minutes. What is the speed of the wind?
*February 16, 2016 by Tony*

**Exponential Modeling**

A species of beetles grows 32% every year. Suppose 100 beetles are released into a field. How many beetles will there be in 10 years?
*May 1, 2016 by Anonymous*

**psy**

Some drugs combat obesity or alcohol addiction by turning off pleasure centers in the brain. However, if the dosage is too high, there’s a risk that people taking them will be plunged into depression. The statements above, if true, support which one of the following ...
*September 25, 2010 by Cat*

**English**

I left out the following sentences. I did some corrections myself. I hope you can help me. Thank you very much. 1)All revenge tragedies derive from the Greeks, then came Seneca who set the rules for all revenge tragedies written in the Elizabethan Age. 2) In revenge tragedies ...
*March 4, 2012 by Henry*

**Math**

Someone please help! Have spent ages stressing over this and still can't figure out how to do it! need asap. Question 3. In ecology, the logistic equation is often written in the form dN divided by dt = rN(1-N/K) where N = N(t) stands for the size of the population at time t, ...
*May 25, 2012 by Mel*

**VB**

I am new here; say to everyone first. Here is the a question for coding list box; it has two part: first part: Create a project that stores personal information for a little electronic "black book"; the fields in the file should include name, phone number, pager number, cell ...
*November 16, 2011 by austin*

**Physics**

A 250 g block is dropped onto a relaxed veritcal spring that has a spring constant of k=2.5 N/cm. The block becomes attached to the spring and compresses the spring 12 cm befor momentarily stopping. While the spring is being compressed, what work is done on the block by a) ...
*December 16, 2006 by Me*

**math**

can you please check my work. A scientist uses a submarine to study ocean life. She begins at sea level, which is at an elevation of 0 ft. she travels straight down at a speed of 3.5ft per second. she then travels directly up 30seconds at a speed of 2.2ft per second. 1) after ...
*September 27, 2015 by sara7*

**maths **

how do i solve 2 and 5 over 8 dived into 1 and 3 over 4 times 3and 1 over 3
*May 16, 2011 by luca*

**math (please please please help)**

How to convert into polar form? z = 1 - i w = 1 - √3i
*October 6, 2011 by Lynn*