Monday

October 5, 2015
**math**

Rationalize the denominator of 2sqrt7/x+sqrt7 I need steps to do this. Been a while since high school. Thanks
*Sunday, July 12, 2015 by dylan*

**tech school math**

this is the answer to one of my questions. This is an on-line class. I don't know how they got the answer. I sent an email to the teacher but no response yet. 121pi/6 - 121 sqrt3/4 = 11.0 m squared
*Sunday, July 12, 2015 by Lisa*

**precalc**

A projectile is launched from a platform 20 feet high with an initial velocity of 48 feet per second, The height h of the projectile at t seconds after launch is given by h = –16t^2 + 48t + 20 feet. (a) How many seconds after launch does the projectile attain maximum ...
*Sunday, July 12, 2015 by Brooke*

**cjc**

Science A batsman hits a cricket ball from ground level. It is caught 1.8 seconds later by the third man standing 43.4 m from the bat. The ball leaves the bat at a speed of 26m/s. Calculate how high above the ground it is caught
*Saturday, July 11, 2015 by musa*

**Charlestown high school**

Illustrate your answer by referring to any three media forms over the same two week period
*Saturday, July 11, 2015 by Duduzile*

**Maths**

A ball is dropped from a height of 80ft.The elasticity of this ball is such that it rebounds three-fourths of the distance it has fallen. How high does the ball rebound on the fifth bounce? Find a formula for the height the ball rebounds on the nth bounce?
*Friday, July 10, 2015 by Rainie*

**chemistry**

1. Which example has particles that can be drawn closer to occupy smaller volume? a. fruit juice b. block of wood c. air inside the syringe d. ice cube 2. Which of the following phenomena does NOT involve the application of gas pressure? a. burning fuels b. falling leaves c. ...
*Friday, July 10, 2015 by ken*

**Geog **

Would someone please help me with this? Or at least tell me the formula I should be using? I've been trying to get help with this for four days now. I'm VERY frustrated. Assume that a parcel of air is forced to rise up and over a 6000-foot-high mountain. The initial ...
*Thursday, July 9, 2015 by Tony*

**math**

there are 15 students including john and mary, in the art club of a school a committee of 3 men consists of chairman secretary and treasurer is selected from the club. if john and mary cannot be both selected how many different committees can be formed ? thank you:)
*Thursday, July 9, 2015 by Zoe*

**Saint Joseph's high school **

An elevator can lifts 10 people up 12 floors. Each person weighs approximately 60 kg. each floor is 3m high, and it takes 15s to reach the 12th floor from the ground floor without stopping. How much work does the elevator do? How much power does the elavator use?
*Thursday, July 9, 2015 by Richellen b. bustamante*

**psychology**

According to Gardner, intelligence quotient (IQ) is the only barometer as to how students will succeed outside of school. A. Statement is true B. Statement is false C. Statement did not originate from Gardner D. Statement is partially accurate. I think the answer is A, ...
*Wednesday, July 8, 2015 by Kelli*

**math**

A school custodian waxed a gymnasium floor that measured 20 feet by 20 feet. How many square feet did she have to wax? A.400 square feet B.40 Square feet C.800 Square feet D.80 Square feet
*Wednesday, July 8, 2015 by tina*

**math**

During a paint sale, a hardware store sold 33 gallon of paint and 57 gallons of high- gloss paint. What is the ratio of gallons of high-gloss sold to the total gallons sold? A. 33:57 B. 33:90 C. 57:33 D. 57:90
*Wednesday, July 8, 2015 by tina*

**sito gbethrome senior school**

a number is picked from the set {1,2,3,-,18}.find the probability that it is either a multiple of 3 or a number less than 7
*Wednesday, July 8, 2015 by oke obadiah*

**Chemistry-History-ish**

Describe 3 experiments, run prior to 1930, and the types of energies/particles used to probe the structure of the atom. What did each experiment investigate? Include the names of the scientists associated with each experiment in your answer Would this be right? Prior to 1930, ...
*Tuesday, July 7, 2015 by Anonymous*

**Math**

Changing Shapes 1.)Suppose you are going to be designing a logo for a club at your school. To prepare for this product, draw a non-rectangular shape in the coordinate plane so that portions of the shape are in each of the four quadrants. Explain what would happen to your ...
*Tuesday, July 7, 2015 by John Dosley*

**casanayan national high school**

How did you solve business-related problems during the early years?
*Tuesday, July 7, 2015 by reza*

**Maths**

A ball is dropped from a height of 80ft.The elasticity of this ball is such that it rebounds three-fourths of the distance it has fallen. How high does the ball rebound on the fifth bounce? Find a formula for the height the ball rebounds on the nth bounce?
*Tuesday, July 7, 2015 by Lynn*

**Grammar**

Which word is verb in the following sentences. My aunt is the author of a comic strip Her office is a busy and colorful place. The characters in her strip are little animals. The sales of his newspaper were high. Now comics have become serious business for publishers
*Tuesday, July 7, 2015 by Morris*

**Caritus girls secondary school**

A metal box attached to a small parachute is dropped from helicopter A.explain in terms of the forces acting on why its velocity increased immediately after being dropped. B.why did it reach a uniform velocity after a short distance
*Tuesday, July 7, 2015 by Blessong*

**phakamani secondary school**

business,tourism.economics,maths literacy.whch requement are needed.
*Tuesday, July 7, 2015 by louis*

**Grammar**

Please tell me the verb in the following sentences 1) my aunt is the author of a comic strip? 2) her office is a busy and colorful place? 3)the characters in her strip are little animals ? 4) the sales of his newspaper were high? 5) now comics have become serious business for ...
*Tuesday, July 7, 2015 by Morris*

**Grammar**

On many mornings, the sky is adorned with peach-and-melon-colored ribbons as a blazing SOLAR sun begins to peek over the horizon. 1) Which choice would be the most consistent with the figurative description provided elsewhere in the sentence? A. No change B. Luminous C. ...
*Monday, July 6, 2015 by Kimberly*

**Spanish**

I was hoping that someone could prof read my essay and check for proper uses of words, grammar, spelling, and conjugations of words. the first three paragraphs are what I have to write in spanish. the three paragraphs below that is the english version of what I was trying to ...
*Monday, July 6, 2015 by Caleb *

**Algebra **

A total of 598 tickets were sold for the school play. They were either adult tickets or student tickets. There were 52 fewer student tickets sold than adult tickets. How many adult tickets were sold?
*Monday, July 6, 2015 by Jessica*

**geography**

examine the sphere of influence of an organisation that renders service in your area, clinic and locsl high school
*Monday, July 6, 2015 by shirley*

**chemistry**

1. Which example has particles that can be drawn closer to occupy smaller volume? a. fruit juice b. block of wood c. air inside the syringe d. ice cube 2. Which of the following phenomena does NOT involve the application of gas pressure? a. burning fuels b. falling leaves c. ...
*Monday, July 6, 2015 by ken*

**Physics**

You are watching your friend play hockey. In the course of the game, he strikes the puck in such a way that, when it is at its highest point, it just clears the surrounding 2.96 m high Plexiglas wall that is 14.5 m away. (Ignore any effects due to air resistance.) (a) Find the...
*Sunday, July 5, 2015 by Sam*

**math**

Shreya walks 2/3 km to her school and rosy walk 3/4 km to the school who has to walk a longer distance to reach the school and by how much
*Sunday, July 5, 2015 by neha *

**St jonhs high school/mathamatics**

Which is greater 3of root3 or 4of root5
*Saturday, July 4, 2015 by V.sairam*

**trigonometry**

If a ladder 40 feet long is placed so as to reach a window 30 feet high,what angel does it make with the level ground,and how far is its foot from tha base of the building?
*Saturday, July 4, 2015 by Anonymous*

**high school**

what is literature?
*Friday, July 3, 2015 by Anonymous*

**health and nurtition **

Which of the following factors contributes to hypertension? A. A high-fat diet B. A lack of sleep C. A vigorous exercise regimen D. A diet that lacks protein
*Friday, July 3, 2015 by peaches*

**Meriti secondray school. **

What can I be or what can be come with Accounting and Business study and Maths lit plzzzz help me
*Friday, July 3, 2015 by Tshepo Phinda*

**physics**

what work is done in raising a 3.0 kg mass from a 2.5 m high ledge to a 6.5 m high shelf? How much potential energy (Ep) does the mass now posses? Ok so for part 1 its w = m g h w = (3.0kg)(10m/s^2)(6.5m-2.5m) w = 120J now how do you find the potential energy?
*Friday, July 3, 2015 by G*

**leadership skills**

If the culture values __________, then leader development should focus opportunities on all employees. A. egalitarianiasm B. high power distance C. action-orientation D. high communication context I originally thought the answer was high power distance but after reading a ...
*Wednesday, July 1, 2015 by Sabx0*

**From theory and practice**

One component of a healthy diet is a high amount of A. monounsaturated fats. B. sodium. C. grains. D. polyunsaturated fats. Answer is C
*Wednesday, July 1, 2015 by Amanda*

**math in distress**

A total of 1,200 students attended Top View high school the ratio of teachers to students is 1:30. How many teachers are there in the school? I did it this way... x + 30x = 1200 31x/31 = 1200/31 1200/31 x= 38.70 = 39 __
*Wednesday, July 1, 2015 by toya5 *

**mechanic **

a can of oil 8 inches high and 8 inches in diameter .what is the approximate volume of the can?
*Wednesday, July 1, 2015 by Anonymous*

**Botse botse high school **

Am a grade 10 learner n would like to know if i'll be able to become a social worker with the following subjects maths literacy , tourism , history and geography
*Tuesday, June 30, 2015 by Hellen*

**Parents, Finances, and School-Age Children**

What fundamental motor patterns do girls tend to attain more quickly than boys do? a. throwing and kicking b. hopping and skipping c. striking moving objects d. running and jumping My answer B
*Tuesday, June 30, 2015 by Amanda*

**Utlwanang Barolong secondary school**

physical science it is found that 40 ml of a 0.5mol.dm^-3 sodium hydroxide solution is needed to neutralise 20mol of the vinegar. calculate the pH of the sodium hydroxide solution
*Tuesday, June 30, 2015 by Didimalang*

**statistics **

24. Suppose there are five traffic lights that you need to pass while driving from your work to school. The probabilities that you will stop for these red lights are: 0 red light with probability 0.05, 1 red light with probability 0.45, 2 red lights with probability 0.30, 3 ...
*Tuesday, June 30, 2015 by meri*

**St. Basil's school: Chemistry **

The pressure of a gas having volume 1800ml. Originally occupying 300ml. at 6 atms. Pressure.
*Tuesday, June 30, 2015 by Richa *

**MRGS SCHOOL.**

State the fundamental theorem of Arithmetic.
*Tuesday, June 30, 2015 by Robin*

**St. Basil's school. Physics **

The time period of two pendulums are 1.44s and 0.36s respectively. Calculate the ratio of their lengths.
*Sunday, June 28, 2015 by Richa *

**St. Basil's school **

The time period of two pendulums are 1.44s and 0.36s respectively. Calculate the ratio of their lengths.
*Sunday, June 28, 2015 by Richa *

**Hill school **

The first three terms of a geometric progression are K-3,2K-4,4K-3 in that order find the value of K and the sum of the first 8 terms of the progression.
*Sunday, June 28, 2015 by Diana *

**English**

There should be more pe taught in school each week - rhetorical question
*Saturday, June 27, 2015 by Daniel*

**math**

1.Glenn bought a car for Php600,000. The yearly depreciation of his car is 10% of its value at the start of the year. What is its value after 4 years? A. Php437,400 B. Php438,000 C. Php393,660 D. Php378,000 2. During a free-fall, a skydiver jumps 16 feet, 48 feet, and 80 feet ...
*Saturday, June 27, 2015 by miles*

**physics**

please help with cart thing A 45 kg cart is pushed up a ramp a length of 5.8 m from rest, attaining a speed of 2.6 m/s at the top of the ramp, which is 1.7 m high. The coefficient of friction between the cart and the ramp is 0.13. a) Determine the work done against: 1) gravity...
*Friday, June 26, 2015 by idnchfywek*

**economics **

a key reason that our gasoline prices elevated rapidly from 2006 to 2008 was: A) tight global supplies and high prices B) war in the middle east C) greed by oil exporting countries D) inflation. d inflation?
*Thursday, June 25, 2015 by Anwar*

**Shiv jyoti public school..jalandhar..punjab**

If wire has resiatence 0.45 ohm. What will be the length of another wire if length is increased by4 times and area decreased by 3 times?
*Thursday, June 25, 2015 by Adoti*

**physical**

A ball is dropped from the roof a building which is 256m high.The height h of the ball at any instant t is described by h(t)= -16tsqure+256 Find 1)Instantaneous velocity of ball at t= 3sec 2)The time taken by ball to reach the ground level
*Thursday, June 25, 2015 by Qandeel*

**intro to psychology**

Functionalism is a school of psychology that examines: A. the causes and consequences of behavior. B. what happens when someone behaves the way they do. C. who in the person’s family behaves in a similar way. D. the parts of the brain that make people behave the way they ...
*Thursday, June 25, 2015 by elly*

**Math**

Which is the best way to obtain a random sample when surveying a high school with 800 students about what to serve in the cafeteria. A.Only ask the 11th grade class. B.Draw a list of 50 students from a bowl with every student's name in it. C.Ask everyone who takes French ...
*Wednesday, June 24, 2015 by Anonymous*

**physic pls help**

Cleo and Clare are looking from their balcony to a swimming pool below that is located 15 m horizontally from the bottom of their building. They estimate the balcony is 45 m high and wonder how fast they would have to jump horizontally to succeed in reaching the pool. What ...
*Wednesday, June 24, 2015 by allexelle*

**Physics**

A 45 kg cart is pushed up a ramp a length of 5.8 m from rest, attaining a speed of 2.6 m/s at the top of the ramp, which is 1.7 m high. The coefficient of friction between the cart and the ramp is 0.13. a) Determine the work done against: 1) gravity 2) inertia 3) friction. b) ...
*Wednesday, June 24, 2015 by jdemxkslwid*

**crane international academy**

A stone is 24M high.a stone is projected upward from the tower with an initial velocity of 24,5m/s. calculate how long it would take for the stone to reach the ground at the foot of the tower.
*Wednesday, June 24, 2015 by maimela Agnes*

**physics**

You have a mass of 60 kg and run up some stairs that are 5 m high in 6 seconds. How much power did you produce?
*Wednesday, June 24, 2015 by abc123*

**physcial science**

What are the wavelength limits of the audible range of the sound spectrum? (Use the speed of sound in air. The speed of sound in air is 344 m/s. The audible range of the sound spectrum contains frequencies as low as 30 Hz and as high as 25 kHz.)
*Tuesday, June 23, 2015 by Christine*

**physics**

A projectile of mass 1.000 kg is shot straight up with an initial speed of 23.0 m/s. (a) How high would it go if there were no air resistance? i got 26.99, which is correct (b) If the projectile rises to a maximum height of only 17.8 m, determine the magnitude of the average ...
*Sunday, June 21, 2015 by Lola*

**physics**

A 30-kg girl is bouncing on a trampoline. During a certain interval after she leaves the surface of the trampoline, her kinetic energy decreases to 205 J from 435 J. How high does she rise during this interval? Neglect air resistance.
*Sunday, June 21, 2015 by Lola*

**math-urgent**

A ball with a mass 0.15kg is thrown upward with an initial velocity 20m/s from the roof of a building 30m high. Neglect air resistance. Find the max height above the ground that the ball reaches. Assuming the ball misses the building find the time that it hits the ground
*Sunday, June 21, 2015 by Anonymous*

**Dilsuknagar public school chemistry**

Calculate the mass ,volume and number of molecules of hydrogen liberated when 198grams of zinc reacts with hydrochloric acid?
*Saturday, June 20, 2015 by meghansh *

**Economics **

Pretend you are a superintendent of a school district and you have to hire new teachers and cut a few substitute teachers. If the number of substitute teachers you release is greater than the number of new teachers you plan to hire, explain to the school board how you plan to ...
*Saturday, June 20, 2015 by Anonymous*

**ST MICHAEL NURSERY SECONDRY AND PRIMARY SCHOOL KONTAGORA**

BASIC SCIENCE. A BOY OF MASS 50KG RUNS UP A FLIGHT OF 10 STAIRS EACH OF HEIGHT 0.2M IN 5 SECONDS CALCULATE HIS POWER.
*Saturday, June 20, 2015 by FESTUS UGWOKE*

**Chemistry**

The emission of high energy particles from the nucleus of an atom is called A. radioactivity B. electromagnetism C. transmutation D. radioactive dating I said A. as my answer. The definition of radioactivity is worded differently in my book though so I wanted to check if my ...
*Saturday, June 20, 2015 by Neena*

**physics **

A small truck runs off the road and over a 100metre high cliff. It lands 50 metre from the base of the cliff. How long did it take for the truck to hit the ground
*Saturday, June 20, 2015 by andrew *

**PSYCH**

In a study of the development of noun usage, an investigator is interested in the relationship of the number of nouns in a child's vocabulary to the number of adults in the household. This type of project is: A. correlational in nature. B. experimental in nature. C. ...
*Friday, June 19, 2015 by MAE*

**UNIBEN Demonstration secondary school, benin city,Nigeria **

how to calculate mole fraction
*Thursday, June 18, 2015 by david*

**ncedo senior secondary school economics**

Detailed explanation with graphs of how the price of milk would have been determined in the absence of government involvement in the market
*Thursday, June 18, 2015 by sanelisiwe dyasi*

**geometry**

box of cereal measures 10 in .wide.12in . high, 3in deep .all surfaces made of cardboard and total overlapping cardboard in the box is 7in squared , how much cardboard is used to make a cereal box including the amount of overlapping parts ?
*Thursday, June 18, 2015 by nunu*

**B. My gange girls sen sec school (science) **

A hot plate of an electric oven connected to a 220V line has two resistance coils A and B, each of 24 ohms resistance, which may be used separately, in series, or in parallel. What are the currents in the cases?
*Thursday, June 18, 2015 by Radhika *

**English**

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. 1. When it looked like all hope was lost for winning the war, the commander ...
*Thursday, June 18, 2015 by Ethan*

**Languarge Arts**

Word Bank: deliberately, derision, despair, diligent, fatigue, felicitous, fervent, impudent, insolence, keen, lingered, meagerness, merit, mock, obliged, resentful, tedious, terse, treacherous, vast. When it looked like all hope was lost for winning the war, the commander ...
*Thursday, June 18, 2015 by Ethan*

**Math**

Of the 597 students at Duzine Elementary School, 19% have a computer at home. About how many students have a computer at home?
*Wednesday, June 17, 2015 by Anonymous*

**school**

If 30 % of students in middle school 15 % of those in music are in choir what % of the whole school is in choir
*Wednesday, June 17, 2015 by Anonymous*

**Physics**

Levon throws a ball straight upwards with an initial velocity of 15.0 m/s. a.How high will it reach? b.How long will it take unit his friend in a tree 5.0 m above him catches the ball? (he catches the ball on its way back down)
*Wednesday, June 17, 2015 by Furkan*

**allied school faiz pur campus**

determine the time of evaporation of 250ml of water on heating
*Wednesday, June 17, 2015 by Anonymous*

**FRENCH! **

Please help fix my sentences. Please keep in mind my past, present, and future tenses. You've been a great help Sra.Mme. 1.) This week, I went to my cousins house. 2.) We had a community gathering. 3.) I met so many new people. 4.) The gathering is fun. 5.) Tomorrow, I ...
*Tuesday, June 16, 2015 by Gabs*

**math**

I need help thank you what is the volume of the prism High= 12 Base=14 side= 9 my answer was 756.
*Tuesday, June 16, 2015 by siulanis perez*

**maths**

A can is 12cm high and diameter 8cm. Using the formula v =TT how much liquid is in the can
*Tuesday, June 16, 2015 by sue*

**Math**

Byron’s house has a roof with dimensions shown. (Roof: 1m Height, 7m Hypotenuses, 12m length) He knows that the average rainfall in his suburb is 30cm per year. Byron would like to install a cylindrical rainwater tank to hold the water that runs off the roof. The tank is ...
*Sunday, June 14, 2015 by Alex*

**S D S school Batote**

An hour has 60 minutes .How many minutes are there in 5/6 of an hour
*Sunday, June 14, 2015 by Rahul kumar*

**Calculus**

A wire 17 inches long is cut into two pieces. One piece is bent to form a square and the other is bent to form a rectangle that is twice as wide as it is high. How should the wire be cut in order to minimize the total area of the square and rectangle?
*Saturday, June 13, 2015 by Selena*

**math**

An oil tank is 3m long, 3 m wide and 2 m high, when it is full of coconut oil specific gravity of 0.90, find the downward force at the bottom of the tank.
*Saturday, June 13, 2015 by mmmm*

**university**

15. A landscape architect is planning an artificial waterfall in a city park. Water flowing at 1.70 m/s will leave the end of a horizontal channel at the top of a vertical wall h = 2.35 m high, and from there it will fall into a pool (see Figure on the right). (a) Will the ...
*Saturday, June 13, 2015 by nthabiseng*

**CRITICAL THINKING**

decisions, which type of thinking would you be most likely to use? Explain your answer. 1.Deciding whether or not to stop and vote as you are driving home on election day 2.Deciding whom you will vote for 3.Deciding which school to attend 4.Reading through the entire ...
*Thursday, June 11, 2015 by ANYOMOUS*

**L.A.**

2.the most likely reason the author includes lines 17-25 is to A:Show how the main one another. B:provide an explanation of the values and rules that existed during the time in which the play is set. C:inform the audience of Jack's secret identity before other characters ...
*Wednesday, June 10, 2015 by L.A.*

**Social Studies**

In The Wealth of Nations, Adam Smith mentions that very good grapes could be grown in Scotland. However, growing high quality grapes in Scotland would be about 30 times as expensive as purchasing grapes from foreign countries. Some nations are better than others at producing ...
*Wednesday, June 10, 2015 by (ASAP)HelpPLZ*

**Science**

One of the most common commercial methods for the production of pure silicon that is to be used for the manufacture of semiconductors is the Siemens process (see Figure P5.3.5) of chemical vapor deposition (CVD). A chamber contains a heated silicon rod and a mixture of high-...
*Tuesday, June 9, 2015 by Tyla*

**physics**

indicate the direction and select the total displacement of A caterpillar tries to climb straight up a wall two meters high, but for every 2 cm up it climbs, it slides down 1 cm. Eventually, it reaches the top. When it reaches the top, it does not pull itself over so it will ...
*Tuesday, June 9, 2015 by Jorge Alaniz*

**sikhethuxolo high school**

any four factors that could threaten or limit the core functions of the media
*Tuesday, June 9, 2015 by banele luthuli*

**gwalior glory school**

I am a three digit number between four hundred and five hundred my on3s place is same as number of eyes you have my tens place is four more than the number at ones place i am ?
*Tuesday, June 9, 2015 by jaivardhan *

**science**

Which of the following properties of water explains its characterization as the universal solvent? Which of the following properties of water explains its characterization as the universal solvent? A. Kinetic energy of liquid water molecules B. High specific heat C. Polarity ...
*Tuesday, June 9, 2015 by wedi*

**Algebra**

You want to determine the average number of songs people keep on their MP3 players. You want to collect data from a random sample of at least 300. Which of these would be the most valid method of collecting data? a. Survey students coming in and out of your school cafeteria...
*Sunday, June 7, 2015 by SkatingDJ*

**Algebra**

You have the numbers 1-25 written on slips of paper. If you choose a slip at random, what is the probability that you will select a number that is divisible by 4? 1/5 6/25***? 4/25 2/3 You have the numbers 1-24 written on slips of paper. If you choose a slip at random, what is...
*Sunday, June 7, 2015 by SkatingDJ*

**math**

A can of oil is 8 inches high and 8 inches in diameter. What is the approximate volume of the can?
*Saturday, June 6, 2015 by scott*

**Language Arts**

Can someone please check these answers I cant risk getting a bad grade at this point. These are from the book "The Giver" 1. At the beginning of the novel, Jonas describes himself as apprehensive. Why is he apprehensive? A. An unknown plane is flying overhead. B. The...
*Friday, June 5, 2015 by Nick*