Homework Help: High School

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graphs and angles
a survey about students government program at a school found that 120 students wanted an after school program and 240 students wanted durning school and 40 students wanted none, If a circle graph is made from this data, what would be the measure of the central angle for the ...
Wednesday, April 25, 2012 at 8:46pm

Essay, please check
Societies Problems: Gangs There are many huge problems in today’s society. One that I will use is gangs and drugs. Gang’s members are usually unemployed and they sell drugs for money. From what I know, living in Tulsa, Oklahoma, there are at least 2 gangs on each ...
Wednesday, April 25, 2012 at 5:54pm

Maths
in a school,7/10 of the pupils like mathematics. half of those who like mathematics are girls.if there are 240 pupils in the school,how many girls like mathematics
Wednesday, April 25, 2012 at 5:10pm

Foreign languages
Can you please check if the following examples containing phrasal verbs are possible? Thank you, Writeacher. 1) She sent her children off to school. She had to change a tyre, but she didn’t know how to set about it. (+ ing) 2) The carpet has worn off. After an hour the ...
Wednesday, April 25, 2012 at 3:05pm

statistics
Let x represent the number of hours of sleep and y represent the number of days missed from school. X 3 5 6 8 10. Y 1 3 3 2 1
Wednesday, April 25, 2012 at 1:49pm

Maphokwane high school
Discuss 5 ways in which the substance abuse human or environmental problem impacts on the community.
Wednesday, April 25, 2012 at 1:16pm

Maphokwane high school
Discuss 5 ways in which the substance abuse human or environmental problem impacts on the community.
Wednesday, April 25, 2012 at 1:13pm

Physics
A 10kg block is released from the top of a ramp 45m high. the track is frictionless except for a 6m stretch in the middle. when the block reaches the end, it compresses the k=2250N/m spring a distance of 0.030m. Find the coefficient of friction over the rough patch in the ...
Wednesday, April 25, 2012 at 6:32am

Human Biology
Starting with the right ventricle of the heart, describe the function of the heart and the movement of the blood through the pulmonary and systemic circuit. Include a description of gas exchange within the lungs. Now consider what happens if Jake starts smoking. Discuss in ...
Wednesday, April 25, 2012 at 3:41am

Physics
A ball is thrown from a building standing 30m high, landing 10m away from the building 3.2 seconds after it was thrown. Find the angle above the horizontal and the initial velocity of the ball
Wednesday, April 25, 2012 at 1:07am

physics
A 10kg block is released from the top of a ramp 45m high. the track is frictionless except for a 6m stretch in the middle. when the block reaches the end, it compresses the k=2250N/m spring a distance of 0.030m. Find the coefficient of friction over the rough patch in the middle.
Tuesday, April 24, 2012 at 10:57pm

English
His mother hoped he would apply to medical school, but his dream was to become the Manager of fast-food franchise operation.
Tuesday, April 24, 2012 at 12:52pm

Chemistry(Please help)
1) Nitrosyl chloride (NOCl) decomposes at high temperature. The equation is 2 NOCl (g) -> 2 NO (g) + Cl2 (g) at 227oC Using delta Ho = 81.2 kJ and delta So = 128 J/K, calculate the value of the equilibrium constant for this reaction. I do not know how to start this problem...
Tuesday, April 24, 2012 at 11:35am

Language Arts
Having some trouble on the comma rule with the word "usually". If it is used in the beginning of the sentence would you put a comma after it? For instance, in the sentence, "Usually castles sat on a hilltop and had high stone walls." Would you put a comma ...
Monday, April 23, 2012 at 10:36pm

english
write whether the words in parentheses show compound subject(CS), compound verb(CV),or independent clauses (IC). 1)Latisha (called me after school)IC ,and (asked for help with her project) IC. 2)(I met her at the library), IC and (we went over the assignment).IC 3) (most of ...
Monday, April 23, 2012 at 10:05pm

Math
I have trouble with math, I'm very good at science and when I grow up I want to be a zoologist, the problem is that. MATH I try to pay attention at school but the teacher is very boring and I'm one of those people that can't pay attention when bored. Any tips?
Monday, April 23, 2012 at 8:26pm

Physics
A 10 kg monkey wishes to climb a 7.15-meter high vine. The vine will break if the tension exceeds 110 N. The monkey starts from rest and exerts a constant force on the rope as he pulls himself upward. What is the shortest amount of time in which the monkey can climb the vine?
Monday, April 23, 2012 at 7:56pm

english
I will never forget a time I lost something important when I was in high school. 1. It was seven years ago when I was in ninth grade in my home country. 2. My parents gave me some money every month for to buy lunch and school supplies. 3. That money put in my wallet and wallet...
Monday, April 23, 2012 at 2:40pm

chemistry
1 _____is defined as one-half of the distance between the nuclei of two adjacent metal atoms in the close packed crystal lattice ionic radius metallic radius covalent radius atomic radius 2 Except for rubidium and caesium, all common cations are smaller than all common anions ...
Monday, April 23, 2012 at 8:01am

physic
1 A passenger in a moving car and a passerby standing at the road side see each other as moving in the opposite direction. Which of the following is NOT true? The passenger is in motion relative to the passer-by The passer-by is stationary relative to the passenger Both ...
Monday, April 23, 2012 at 8:00am

College Majors?
I am a senior rapidly approaching the end of my high school education. Of course college is on my rader. I plan to go to double-major in journalism and art. I want to get my bachelor's degree in journalism so I can become an editor. I can work this job from home while ...
Sunday, April 22, 2012 at 8:39pm

@damon
I am still getting the wrong answrs, can you please do me a favor and for each part list the formulas and steps i need to do in order to get the answer. thank you At serve, a tennis player aims to hit the ball horizontally. part a)What minimum speed is required for the ball to...
Sunday, April 22, 2012 at 6:44pm

physics @ elena
can you please help me with this one At serve, a tennis player aims to hit the ball horizontally. part a)What minimum speed is required for the ball to clear the 0.90m--high net about 15.0m from the server if the ball is "launched" from a height of 2.50m ? part b)...
Sunday, April 22, 2012 at 6:33pm

ap physics
At serve, a tennis player aims to hit the ball horizontally. part a)What minimum speed is required for the ball to clear the 0.90m--high net about 15.0m from the server if the ball is "launched" from a height of 2.50m ? part b)here (relative to server) will the ball...
Sunday, April 22, 2012 at 6:03pm

Physics
A 2.11 cm high insect is 1.31 m from a -125 mm focal-length lens. Where is the image? Distance of the image is ? How high is it? What type is it?
Sunday, April 22, 2012 at 5:48pm

math
an oil drum is 8ft high and 2 ft in diameter if the drum is half full how much is in cylinder. please show explanation
Sunday, April 22, 2012 at 4:49pm

FACS - Reading Assignment (Q2) Check
3. Explain - Why are foods-lab tasks moved from one person to another? Answer - The reason why are foods-lab tasks moved from one person to another is because when team members work together to complete tasks in the school foods lab, the whole group benefits. am i correct?????
Sunday, April 22, 2012 at 4:32pm

physics
At serve, a tennis player aims to hit the ball horizontally. part a)What minimum speed is required for the ball to clear the 0.90m--high net about 15.0m from the server if the ball is "launched" from a height of 2.50m ? part b)here (relative to server) will the ball ...
Sunday, April 22, 2012 at 4:22pm

Physics
Janet jumps off a high diving platform with a horizontal velocity of 1.73 m/s and lands in the water 1.8 s later. How high is the platform? The acceleration of gravity is 9.8 m/s2 . Answer in units of m
Sunday, April 22, 2012 at 2:47pm

FACS - Reading Assignment Help!
I have this reading assignment for Family and Consumer Science. She gave us this packet for notes and to read to answer questions she gave us (that's our reading assignment which she is grading). So we answer the questions and to find the answers we look in the packet (the...
Sunday, April 22, 2012 at 2:47pm

Please Proofread Any Suggestions Will Help
Every morning, I drive to work; as I get closer I can hear the cadence calling of all the basic training units on Fort Benning, Georgia. Regardless of what is on the training schedule for the rest of the day, we conduct Army Physical Readiness Training (APRT). At a minimum the...
Sunday, April 22, 2012 at 1:44pm

Physics
A 2.11 cm high insect is 1.31 m from a 125 mm focal-length lens. Where is the image? Distance of the image is ? How high is it? What type is it?
Sunday, April 22, 2012 at 9:52am

dav public school
find the product by using distributive property 241*107
Sunday, April 22, 2012 at 4:23am

Statistics
A newspaper article stated that college students at a local university spent an average of $95 on beer a year. A student investigator who believed the average stated was too high polled a random sample of 50 students and found a mean of $92.25 and s = 10 Use these results to ...
Saturday, April 21, 2012 at 5:13pm

physics
A 2 kg metal plate slides down a 11-meter high slope. At the bottom its speed is 7.5 m/s. To the nearest Joule, what was the magnitude of the work done by friction?If the slope in the above problem is 22 degrees, what is the coefficient of friction?
Saturday, April 21, 2012 at 12:54pm

English Essay:NCLB
can some proofread my paragraph it is for a persuasive essay? Please,Thank You!! Is Education system taking the risk for students learning? Is the capital that we have been giving helping students to improve their performance in schools ? What can be done to futher advance ...
Saturday, April 21, 2012 at 12:16pm

chemistry
Nitrosyl chloride (NOCl) decomposes at high temperature. The equation is 2 NOCl (g) -> 2 NO (g) + Cl2 (g) at 227C Using delta H = 81.2 kJ and delta S = 128 J/K, calculate the value of the equilibrium constant for this reaction. a 1.60 X 10-2 b. 2.1 X 10-7 c. 62.8 d. 4.9 X ...
Saturday, April 21, 2012 at 11:56am

English
Thank you very much, Writeacher. I need to revise these sentences, too. 1) I was last proud of myself when I helped one of my friends one week ago. She lost her father after a tragic accident (better: in) and I'm currently supporting her emotionally. 2) I often blamed (...
Saturday, April 21, 2012 at 4:45am

Statistics
An investigator wants to estimate caffeine consumption in high school students. How many students would be required to ensure that a 95% confidence interval estimate for the mean caffeine intake is within 15mg of the true mean? Assume the standard deviation in caffeine intake ...
Saturday, April 21, 2012 at 2:43am

math
Determine the cost of painting the exterior walls and top of a cylindrical wheat silo that is 40 m high and 20 m in diameter. given that each litre of paint costs $7.25 and covers 8 meter square.
Friday, April 20, 2012 at 9:58pm

not in school
Does age determine brain size?
Friday, April 20, 2012 at 9:34pm

economics
Over the last 30 years in the United States, the realprice of a college education (i.e., after adjusting for inflation) has increased by almost 70 percent. Over the same period, an increasing number of high school grad- uates have sought a college education. (Nationwide ...
Friday, April 20, 2012 at 4:59pm

Maths
need extra classes for my son grade2 Parsons Hill Primary school
Friday, April 20, 2012 at 10:26am

English
Can you please tell me where I can interview homeowners, will they agree if its for school purpose? Thank you!
Friday, April 20, 2012 at 8:38am

English
ms. sue you please help me with story questions? if you have time then this be story Field of Broken Dreams by Sharon Butala My memories of drives in the country when I was a child in the 1940s and early 1950s, after the devastation of the 1930s, are of abandoned farmstead ...
Thursday, April 19, 2012 at 8:54pm

science
what is the word for high energy body on outer edge of space
Thursday, April 19, 2012 at 7:51pm

3 grade english ms sue
ADJECTIVES AND ARTICALES DIRECTIONS CIRCLE EACH ARTICAL. UNDERLINE EACH ADJECTIVE 1-PEOPLE HAVE WORN MANY DIFFERENT STYLES THROUGHOUT THE YEARS. MY SON CIRCLE THE WORD (THE) AND UNDERLINE THE WORD IS (different) 2-When Aunt Rose was a teacher,she wore long,straight skirts my ...
Thursday, April 19, 2012 at 6:40pm

Economics
In a market supply, what factor would cause a decrease in meals served? A. lifting of excise taxes B. government farm subsidies C. high global demand for fuel My grandmother says A. but i say B. whos right me or her? Someone help please!!
Thursday, April 19, 2012 at 6:31pm

English
Sorry, for asking you the same thing again, but I really don't know if I have to leave these two sentences as they are. 1. I have already been at school today. 2. I have already been to school today. (Is there a difference between them?) 3.I haven't been to the cinema ...
Thursday, April 19, 2012 at 4:57pm

English
Writeacher, I really hope you can have a look at my last examples. I need to know which are wrong. I still have a few doubts on the use of to/at/in after have been. Thank you for helping me. 1) I haven't gone out for a walk. I have already been to school (or at school) ...
Thursday, April 19, 2012 at 1:51pm

English
I still have a few doubts on the use of to/at/in after have been. Thank you for helping me. 1) I haven't gone out for a walk. I have already been to school (or at school) today. I haven't been to the cinema yet today. 2) I've already gone shopping online. I've ...
Thursday, April 19, 2012 at 11:56am

lOTS OF PHYSICS :)
41. Is the speed of light constant as it passes through transparent materials? Yes, the speed of is always constant No, light travels at different speeds through different materials 42. A lens that causes light to diverge is A converging lens A diverging lens Fish-eye lens 43...
Wednesday, April 18, 2012 at 7:56pm

Phala high school
Two institution/ community organization that are involved in supporting or giving redress to the teenage pregnancy?
Wednesday, April 18, 2012 at 12:54pm

not for school
Hi I'm writing a story and I had a question. I am saying that one person has to jump across this... well it is kind of a pit of doom... no ending... into eternal darkness... but anyways I need to know how far the average human can jump if they have a 3ft running start. I ...
Wednesday, April 18, 2012 at 1:04am

statistic
suppose we wish to construct a confidence interval for a population proportion p. if we sample without replacement from a relatively small population of size N, the margin or error E is modified to include the finite population correction factor as follows: E=Za/2 pq/n N-n/N-1...
Tuesday, April 17, 2012 at 11:03pm

martha valle high school
Find to the nearest meter the height of a building if its shadow is 42 meters long when the angle of elevation of the sun measures 42°
Tuesday, April 17, 2012 at 10:34pm

Math
At a track meet, competitors could win gold, silver or bronze medals. Kennedy High Schools track team won a total of 18 medals. Three of the medals were gold. There were twice as many bronze medals as silver medals. How many bronze medals did the track team win?
Tuesday, April 17, 2012 at 7:44pm

physics
Humans can hear sounds with frequencies up to about 20.0 kHz, but dogs can hear frequencies up to about 40.0 kHz. Dog whistles are made to emit sounds that dogs can hear but humans cannot. If the part of a dog whistle that actually produces the high frequency is made of a tube...
Tuesday, April 17, 2012 at 5:14pm

physical
how many time outs do you get in a middle school backetball game. how many fouls have you gotten when you foul out of a middle school basketball game. what does B.E.E.F stand for? how long is a full time out. what is the size OF a girls basketball how high is the basketball ...
Tuesday, April 17, 2012 at 5:03pm

maths
A class of thirty students in a school has 18 boys. How many boys would you expect there to be in the year group of 130 students?
Tuesday, April 17, 2012 at 3:57pm

Physics
James Joule once attempted to measure the increase in temperature of the water in a waterfall resulting from its decrease in gravitational potential energy. How high would the waterfall have to be for the temperature at the bottom to be 1°C higher than at the top?
Tuesday, April 17, 2012 at 3:40pm

Reading/English
Question 1 of 20 5.0 Points Critical Reading Identify the letter of the choice that best completes the statement or answers the question. What is Mr. Gradgrind’s opinion of horse riders? A. He does not approve of them. *B. He is fascinated with them. C. He believes they ...
Tuesday, April 17, 2012 at 1:59pm

NYS ELA Online Practice Exam - PLEASE read!
Today is my NYS ELA Exam Book 1: Multiple Choice Questions. I know I'm supposed to be at school but the 7th graders take the exam around 12:30 or 12:40. Right now the 8th graders are (still) taking the exam so I'm still at home. Tomorrow is Book 2: Listening and Note-...
Tuesday, April 17, 2012 at 10:21am

English 12
Question 1 of 20 5.0 Points Critical Reading Identify the letter of the choice that best completes the statement or answers the question. What is Mr. Gradgrind’s opinion of horse riders? A. He does not approve of them. B. He is fascinated with them. C. He believes they ...
Tuesday, April 17, 2012 at 9:33am

English
I have a few further doubts. Thank you very much for the help. 1) I sent her two emails last week, but he hasn't replied to any of them. (I think both the simple past and the past perfect are acceptable). 2) How long does it take him to drive to wrok? 3) Why was she ...
Tuesday, April 17, 2012 at 9:33am

calculus
A 160-lb man carries a 25-lb can of paint up a helical staircase that encircles a silo witha radius of 20 ft. If the silo is 90 ft high and the man makes exactly three complete revolutions, how much work is done by the man against gravity in climbing to the top? I looked at ...
Monday, April 16, 2012 at 11:08pm

Physics
a 65 kg sled starting from the rest slides down a 14 m high frictionless ramp. at the bottom of the ramp the sled encounters a level area that is not frictionless. how much work is done by friction to stop the sled?
Monday, April 16, 2012 at 9:02pm

Math
Nico was stunned when he opened the mail. Here was a check for $322.50! This was the interest he earned on his investment. One year ago Nico had been given $5,000. His parents made him put it in the bank and save it for college, but they said he could keep the interest it ...
Monday, April 16, 2012 at 4:40pm

Business math
As a professional photographer, Marion has seen the trend away from film cameras as customers purchase low-end digital cameras and printers in order to avoid processing fees associated with film-based cameras. She would like to offer a new service to customers by offering ...
Monday, April 16, 2012 at 4:20pm

Math
A ladder is placed 6 ft aainsgt a 25 ft building. How high above the ground does the ladder touch the wall?
Monday, April 16, 2012 at 1:35pm

English
I left out two exercises for you to check. Thank you very much, Writeacher. By the way, do you say "talk about a topic of your choosing/or of your choice? 1) I ……………… 3;…… buy any butter, mum has just bought some. (Shall I...
Monday, April 16, 2012 at 1:01pm

math
A building has 4 stories that are each 15 feet high. A scale drawing has the height of the building at 5 inches. Which of the following is the correct scale?
Monday, April 16, 2012 at 9:29am

physics- help please !!1
A toy rocket moving vertically upward passes by a 2.2m -high window whose sill is 7.0m above the ground. The rocket takes 0.17s to travel the 2.2m height of the window part a) what was the launch speed of the rocker ? assume the propellant is burned very quickly at blastoff ...
Monday, April 16, 2012 at 12:54am

physics
A toy rocket is shot vertically from the base of a multiple level parking garage. the rockets height in feet is modeled by the equation h(T)= -16T squared+ 128 T, where T is the time in seconds if the rocket just reaches the top of the parking garage, how high is the parking ...
Sunday, April 15, 2012 at 11:38pm

math
which unit would be BEST to use to measure the time it takes a school bus to drive from its first stop to school? a)hour b)week c)month d)second
Sunday, April 15, 2012 at 4:03pm

@ elena - intro to physics
I posted this question earlier and thank you for respnding, but the answer you give me was incorrect. I try looking at hw you solve and cant find the mistake but when when I check your answer it said it was wrong. Can you please look over it again, I greatly appreciate it a ...
Sunday, April 15, 2012 at 2:54pm

chem 101
In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV. Electrons with this kinetic energy have a velocity of 2.67 x 10^8 ...
Sunday, April 15, 2012 at 2:01pm

Introduction to Business
1. The employees of Abs "R" Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. This would be called a ______ buyout. A. Leveraged C. Negotiated B. hostile D. Management Answer: A 2. According to ...
Sunday, April 15, 2012 at 12:55pm

Economics
1. The employees of Abs "R" Us, which includes 12 fitness parlors in and around the metro area, feel they can improve the performance of the company. This would be called a ______ buyout. A. Leveraged C. Negotiated B. hostile D. Management Answer: A 2. According to ...
Sunday, April 15, 2012 at 12:52pm

psyc355
Children below the 30th percentile (in the bottom 30%) are in need of special assistance prior to attending school. What raw score marks the cut-off score for these children?
Sunday, April 15, 2012 at 12:48pm

intro to physics
a toy rocket moving vertically upward passes by a 2.2m- high window whose sill is 7.0m above the ground. the rocket takes 0.17s to travel the 2.2m height of the wondow part a): what was the launch speed of the rocket ? assume the propellant is burned very quickly at blastoff ...
Sunday, April 15, 2012 at 12:18pm

physics
A 2 kg metal plate slides down a 14-meter high slope. At the bottom its speed is 11.1 m/s. To the nearest Joule, what was the magnitude of the work done by friction?
Sunday, April 15, 2012 at 6:12am

physics
Just as a car tops a 51 meter high hill with a speed of 84 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?
Sunday, April 15, 2012 at 6:10am

programming logic
Find Bugs in the pseudocode // A high school is holding a recycling competition // This program allows a user to enter a student's // year in school (1 through 4) // and number of cans collected // Data is entered continuously until the user wnats to quit // After headings...
Sunday, April 15, 2012 at 12:19am

calculus
2. A bullet is fired from the ground at an angle of 45o above the horizontal. What initial speed vo must the bullet have in order to hit a point 550 ft high on a tower located 600 ft away (ignoring air resistance)? 3. The Giant Ferris Wheel in Vienna has radius R = 30 m (...
Saturday, April 14, 2012 at 11:04pm

physics
Just as a car tops a 51 meter high hill with a speed of 85 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill?
Saturday, April 14, 2012 at 5:25am

english story
From Emperor to Citizen: The procession was temporarily abolished because of the emperor's interest in? wars viands bicycles poisons -- prepared food only for the sake of appearances. the imperial kitchens the high consorts his mother eunuchs any suggestions?
Friday, April 13, 2012 at 11:44pm

math
In an 8 inch by 12 inch rectangular photograph, the image of a building is 5 inches high. If the photograph is magnified until its perimeter is 720 inches, what is the height, in inches, of the image of the building in the larger photograph?
Friday, April 13, 2012 at 8:21pm

chem 101
. In an electron microscope the electrons generate the image. For one of the scanning electron microscopes in our Central Analytical Facility, the electrons are accelerated to have a kinetic energy of 200,000 eV. Electrons with this kinetic energy have a velocity of 2.67 x 10^...
Friday, April 13, 2012 at 2:32pm

Math 7 - NYS Math Exam Review - Book 1 (HW)
C = 2nr!?!??!??! Since the NYS Math Exam is coming up (in my district in my school we have it next week). You see in my class were not done with our geometry and ratio, proportion unit and plus we are missing one unit: algebra. We didn't get to solving the formulas. Ratio ...
Friday, April 13, 2012 at 11:28am

Geometery
A cylindrical water tank near Lisa's school is 18 meter high and has a circumference or 33 meter. The given formula can be used to determine the (v) of a cylinder?
Thursday, April 12, 2012 at 10:39pm

English
How is my grammar and punctuation in the folowing paragraph? Picture this, you are taking a test and the person next to you is chewing their gum loudly,so you can't concentrate. How disrespectful is that? The school board needs to make a rule no chewing gum in school.
Thursday, April 12, 2012 at 9:14pm

Physics
Roger (mass of 75 kg) is travelling on a new ride called the Riddler's Revenge. On a 7.1 m hill he is moving along at 31.3 m/s, then slows down to 24.7 m/s on the second hill. How high is the second hill?
Thursday, April 12, 2012 at 8:42pm

English
How is my introductory paragraph to persuasive writing? Picture this, you are taking a test and the person next to you is chewing their gum loudly,so you can't concentrate. How disrespectful is that? The school board needs to make a rule no chewing gum in school.
Thursday, April 12, 2012 at 8:24pm

Understanding percentages
Check my answer,, A store advertises a shirt at 25% off the original price of $44. What is the sale price? MY ANSWER: $33.00 What is the percentage increase in high school enrollment from 1,165 students to 1,320? MY ANSWER: 13.3%
Thursday, April 12, 2012 at 7:48pm

6th grade geo
in which area would you find coal veins? in contrast to the southern uplands and the highlands, the central lowlands of Scotland which of the following is an accurate statement about the way that the welsh economy has changed in the late twentieth century Scotland’s lakes...
Thursday, April 12, 2012 at 4:20pm

ENGLISH--HELP
Every sentence in the paragraph below violates some principle of good persuasive writing. Revise the paragraph, following the directions at the end of each sentence; use your imagination where necessary. Type the revised paragraph in the text box provided below. CAUTION: ...
Thursday, April 12, 2012 at 3:24pm

math
Reading readiness of preschoolers from an impoverished neighborhood (n=20) was measured using a standardized test. Nationally, the mean on this test for preschoolers is 30.9 with SD=2.08. A) Children below the 30th percentile (in the bottom 30%) are in need of special ...
Thursday, April 12, 2012 at 2:37pm

English
I included a few things about correct behaviour in class. Can you please check them, too? 1) I should get top marks in all subjects. I should apply myself (fully) when in class. I should get involved in the lessons. 2) I should ask my classmates about next time's homework ...
Thursday, April 12, 2012 at 1:29pm

statistics
You think that the best sampling strategy is stratified sampling. Youd like to list the characteristics of schools in this district, then randomly select 80 schools who roughly match the demographic characteristics of the entire population of schools in this district. 40 of ...
Thursday, April 12, 2012 at 1:25pm

physics
A 400g lemming waddles horizontally off a small 4.9m high cliff with a horizontal velocity of 0.5m/s. a. How far from the base of the cliff will the lemming land? b. What will be the lemmings speed just before landing? c. What is the lemmings kinetic energy just before landing?
Thursday, April 12, 2012 at 6:59am

English
I still have a few sentences to check. Thank you very much, Writeacher. 1) I would worl at a passion (my passion), because even if I know it is difficult to take off, I think that the job itself can motivate me. In fact, I'd prefer to have a job in which I can do what I ...
Wednesday, April 11, 2012 at 4:19pm

science
2. An electric fan having a radius of 0.5 m is running on HIGH. After the LOW button is pressed, the angular speed of the fan decreases to 83.8 rad/s in 17.5 s. the deceleration is 42.0 rad/s2. Determine a) The initial angular speed of the fan b) the linear speed of a point on...
Wednesday, April 11, 2012 at 1:32pm

physic
a bullet is fired from the ground at the angle of 30 degree above the horizontal,What initial speed must the bullet have in order to hit a point 250 ft high on a tower located 400 ft away (ignoring air resistance),what the solution?
Wednesday, April 11, 2012 at 4:30am

Math
A new school has opened with fewer than 500 students. 1/3 of the students is a whole number. So are 1/4, 1/5 and 1/7 of the students. How many students go to this school?
Wednesday, April 11, 2012 at 3:13am

math
2. A bullet is fired from the ground at an angle of 45o above the horizontal. What initial speed vo must the bullet have in order to hit a point 550 ft high on a tower located 600 ft away (ignoring air resistance)?
Wednesday, April 11, 2012 at 12:43am

Math
The time it takes Javier to go to school and his walking rate are inversely proportional. If it takes him 12 mins walking at 3 mph how long does it take if he walks at 4 mph?
Tuesday, April 10, 2012 at 8:02pm

physics
An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting on the alpha particle when the alpha particle is 1.7 multiplied by 10-14 m from the gold nucleus? N
Tuesday, April 10, 2012 at 8:01pm

physics
Touch a 5000-V charged balloon and you're not harmed because, although the energy/charge ratio is high, there is ____________________. A) very little conduction of electricity.B) very little energy on the balloon.C) no way this large amount of energy can transfer under ...
Tuesday, April 10, 2012 at 6:59pm

money
how would you ask someone for money for school???
Tuesday, April 10, 2012 at 2:59pm

Computer Question for school
is there a way to, on an online video, copy the screen? I am watching a direct instruction for schoolwork and don't know if i can, can I?
Tuesday, April 10, 2012 at 2:20pm

physics
Boxing gloves are padded to lessen the force of a blow. (a) Calculate the force exerted by a boxing glove on an opponent's face, if the glove and face compress 7.00 cm during a blow in which the 8.00 kg arm and glove are brought to rest from an initial speed of 10.0 m/s. 1...
Tuesday, April 10, 2012 at 1:26pm

organic chemistry
what happens to so3 when placedat high temp?
Tuesday, April 10, 2012 at 1:02pm

physics
The source of all wave motion is ____________________. A) something vibrating.B) a harmonic object, or system of objects.C) any energy source.D) a region of high and low pressures.E) transverse motion.
Tuesday, April 10, 2012 at 12:55pm

Physics please help!
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) How high is the image...
Tuesday, April 10, 2012 at 11:53am

physics
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) How high is the image...
Tuesday, April 10, 2012 at 10:51am

economics
Suppose that a business has developed a very high-quality product and operates more efficiently in producing that product than any other potential competitor. As a consequence, at present it is the only seller of this product, for which there are few close substitutes. Is this...
Tuesday, April 10, 2012 at 10:16am

English
Thank you very much. Here are some more sentences on the same subject. Thank you. 1) The Hundred Years' War received a severe check from the 'Black Death', the bubonic plague which spread all over England in 1348. It was caused by fleas living on black rats which ...
Tuesday, April 10, 2012 at 3:44am

physics!
The far point of a nearsighted person is 5.8 m from her eyes, and she wears contacts that enable her to see distant objects clearly. A tree is 18.7 m away and 1.8 m high. (a) When she looks through the contacts at the tree, what is its image distance? (b) How high is the image...
Tuesday, April 10, 2012 at 1:08am

chemistry
In the chemistry exp molar mass of a volatile liquid what will be the outcome if the hole in the aluminu foil was larger would it make the molar mass high or low. Or what will happen if yhr water vapors condensed under the aluminum foil before the final weighing
Tuesday, April 10, 2012 at 12:32am

Circuits
How do I design a low pass filter for an Fc = 4000 Hz and a high pass filter for Fc =2000 Hz?
Monday, April 9, 2012 at 11:05pm

algebra
Jane spent 62% of her school budgets on books. In degrees what measurement would would that section be on a circle graph
Monday, April 9, 2012 at 8:39pm

Physics
A large solid cylinder rolls without slipping down a 40 m long hill with a 30 degree slope. The cylinder then rolls a short distance over level ground and then off a 20 meter high sheer cliff. How far from the base of the cliff does the cylinder land? Ignore friction and air ...
Monday, April 9, 2012 at 8:22pm

algebra
Jane spent 62% of her school budgets on books. In degrees what measurement would would that section be on a circle graph
Monday, April 9, 2012 at 8:19pm

English
Can you please check these sentences on history? Thank you, Writeacher. 1) Richard was succeeded by his younger brother John I, called Lacklan because he lost Normandy and most of his French territories. 2) He levied higher taxes an his policy (of heavy taxation) met with ...
Monday, April 9, 2012 at 6:55pm

Financial Math
Suppose that you decide to lease a car. At the end of the 48-month lease period, you need to make a lump-sum payment of $5000 if you want to keep the car. You decide to save up, just in case you decide to keep the car; if you don’t keep this car, you will still have saved...
Monday, April 9, 2012 at 2:01am

MATH
JUST WOULD LIKE TO KNOW IF I DID THESE PROBLEMS RIGHT. THANKS IN ADVANCE Starting a Business Starting your own business can be exciting and daunting at the same time. Businesses use math when managing finances, determining production levels, designing products and packaging, ...
Monday, April 9, 2012 at 12:34am

physics-HS
Just as a car tops a 49 meter high hill with a speed of 77 km/h it runs out of gas and coasts from there, without friction or drag. How high, to the nearest meter, will the car coast up the next hill? plzzz help!
Sunday, April 8, 2012 at 12:51pm

6th G Math
The school pep squad members wanted to make rectangular spirit flags with bases of 7 inches and heights of 8 inches. Each flag is divided evenly into a red triangle and a white triangle. How much fabric would be needed to make the white triangle for 100 spirit flags?
Saturday, April 7, 2012 at 11:26pm

english
josephine has lived at shady pines for three years. A month ago,Josephine close friend moved into high care.Josephine is sad,becoming more isolated and not happy to join in any activites. There are many activities run at the facility on a weekly basis that Josephine would ...
Saturday, April 7, 2012 at 12:27am

economics
What is one advantage of a centrally planned economy? A. low unemployment due to guaranteed jobs B. high levels of consumer satisfaction C. quick adjustment to changing conditions D. incentives for workers have new ideas Can someone please help me!!!
Friday, April 6, 2012 at 10:49pm

pre-algebra 2
Twenty-five members of the eighth grade class at Park Center Middle School are going to a museum and then to lunch. Each student must pay an entrance fee to the museum and $7.25 for lunch. The total cost for the trip is $443.75. What is the entrance fee for one student? A. $10...
Friday, April 6, 2012 at 5:01pm

light
An object 5 millimeters high is located 15 millimeters in front of a plane mirror.How from the mirror is the IMAGE LOCATED?
Friday, April 6, 2012 at 2:26pm

Current/Magnetic force
A high voltage power line carries a current of 110 A at a location where the Earth's magnetic fields has a magnitude of 5.9 x 10^-4 T and points north at an angle of72 degrees below the horizontal (toward the earth surface). Find the direction and magnitude of the magnetic...
Thursday, April 5, 2012 at 1:55pm

Physics
A 5.80 kg ball is dropped from a height of 14.5 m above one end of a uniform bar that pivots at its center. The bar has mass 9.00 kg and is 6.40 m in length. At the other end of the bar sits another 5.30 kg ball, unattached to the bar. The dropped ball sticks to the bar after ...
Thursday, April 5, 2012 at 10:35am

micro economics
1) Assume that the gold-mining industry is competitive. a) Illustrate a long-run equilibrium using diagrams for the gold market and for the a representative gold mine. b) Suppose that an increase in jewellery demand induces a a surge for in the demand for gold. Using your ...
Thursday, April 5, 2012 at 2:14am

Human resources
Role Play In this mock executive team meeting, you will assume the role and responsibility for a specific function (for example, human resources, marketing, finance, legal, and operations). The team will be given a scenario in which strategic decisions are to be made for rapid...
Wednesday, April 4, 2012 at 8:51pm

chemistry
please help Calculate the volume in mm3 of a slice of potato if it is cut into the shape of a rectangular prism (volume = length x width x height), which is 2.24 cm long, 0.84cm wide and 2.88cm high
Wednesday, April 4, 2012 at 8:08pm

chemistry
OK how does 4H+O2 got to 2 H2O? I have no idea and it doesn't help that i just moved to a new school and I didn't even know what this stuff was!
Wednesday, April 4, 2012 at 7:22pm

Precalc
A restaurant uses a cable for the servers to slide orders down to the kitchen. The end where the servers place the order is 5 feet high. The end where the kitchen receives the order is 1 foot high. The angle of elevation from the kitchen to the servers stand is 25°. ...
Wednesday, April 4, 2012 at 6:32pm

chemistry
Methanol (CH3OH) is used in the production of many chemicals. Methanol is made by reacting carbon monoxide and hydrogen at high temperature and pressure. CO(g) + 2 H2(g) CH3OH(g) (a) How many moles of each reactant are needed to produce 4.83 102 g CH3OH? CO mol H2 mol (b) ...
Tuesday, April 3, 2012 at 9:15pm

TRIGONOMETRY ASAP!
fountains are designed so that the height and distance the water travels is dependent on θ, the angle at which the water is aimed. for any given angle θ, the ratio of maximum height H of the water to the horizontal distance D it travels is given by the formula H/D=1/...
Tuesday, April 3, 2012 at 6:13pm

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