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September 21, 2014

Homework Help: High School

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physics
what is velocity of falling salt ball if it had 1 kg mass and placed 5 m high before,now falls after losing 10gm of mass.
Sunday, May 5, 2013 at 11:15am

statistics
The attendance at the school play on Friday was 95% of the attendance on Saturday night. If 203 people attended on Saturday night, estimate how many attended on Friday night. a minute agoEdit Question
Sunday, May 5, 2013 at 9:58am

jules high school
10 ways in which the environmental health hazards can impact negatively on ones health
Sunday, May 5, 2013 at 9:34am

LOGICAL PUZZLE
On the first three downs, the local high school football team had the following gains and losses: 6 yard gain, 10 yard loss, and a 12 yard gain. What is the total gain or loss, and did they manage to get another set of downs?
Saturday, May 4, 2013 at 8:19pm

Chemistry
Assuming equal concentrations, rank these aqueous solutions by their freezing point: low to high NH4Cl, Sn(ClO3)4, Na2SO4, and AlBr3.
Saturday, May 4, 2013 at 6:52pm

st pauls high
What are welfare payments or consumers subsidies ?
Saturday, May 4, 2013 at 7:23am

Statistics
The Education Testing Service conducted a study to investigate differences between the scores of males and females on the SAT. The study identified a random sample of 562 females and 852 males that had achieved the same high score on the math portion of the test. That is, both...
Friday, May 3, 2013 at 10:40pm

Statistics
For questions 1-5, write the null and alternative hypothesis. 1. Does the water temperature have an effect on the number of people in the pool? 2. Does the weather have an effect on the number of people at the beach? 3. A fitness center is running a discounted membership fee. ...
Friday, May 3, 2013 at 11:47am

Statistics
1. A study of 40 people found that they could do on the average15 pull ups with a standard deviation of .6. Find the 99% confidence interval for the mean of the population. 2. A study of 50 pizza delivery workers found that they could make 6 deliveries per hour with a standard...
Friday, May 3, 2013 at 11:45am

Algebra
The stem-and-leaf plot represents the average monthly high temperatures in Tampa, Florida. What is the first quartile (Q1) of the temperatures? Round to the nearest tenth. Stem leaf 6 9 7 1267 8 14799 9 00
Thursday, May 2, 2013 at 9:04pm

physics
A projectile was fired out of a lead ejector at an angle of 45 degrees up from horizontal. The projectile velocity was 1000.00 meters per second. How high did it go? and how far did the projectile go?
Thursday, May 2, 2013 at 7:27pm

Science help.
You make a terrarium for your school’s science fair by putting some soil into a glass container and adding small plants. You moisten the soil with water and add a slug. You cover the terrarium with clear plastic that has vent holes. Then, you place the terrarium in a ...
Thursday, May 2, 2013 at 3:09pm

dlabesuthe high school
In 10-15 lines critically discuss 5 ways in which the human or environmental problem impacts on the community provide relavant sources to support your claims
Thursday, May 2, 2013 at 1:59pm

rivera middle school
pablo made bread and muffins. he used 3/4 cups of flower for bread and 5/8 cups of flower for muffins. how much flower did he use in all.
Thursday, May 2, 2013 at 12:44pm

physics
An object is 38.0 cm from a concave mirror of 12 cm focal length. The object is 1.8 cm tall. Use the mirror equation to find the image position. How high is the image?
Thursday, May 2, 2013 at 12:28pm

Life orientation
Explain 5 factors that contribute to the practice of high-risk sexual behaviour amongst the adolescence
Thursday, May 2, 2013 at 12:10pm

Education
A good reason to include the study of religions in school is that A) schools are responsible for moral training. B) all children have religious needs. C) religious references and allusions permeate our lives. D) churches expect schools to do it. I believe the answer it C, is ...
Thursday, May 2, 2013 at 11:18am

biology
Consider the following 45 base-pair (bp) DNA sequence: 1 10 20 30 40 | . | . | . | . | . 5’-CGCACCTGTGTTGATCACCTAGCCGATCCACG​GTGGATCCAAGGC-3’ ||||||||||||||||||||||||||||||||||||||||​||||| 3’-GCGTGGACACAACTAGTGGATCGGCTAGGTGC​CACCTAGGTTCCG-5&#...
Thursday, May 2, 2013 at 2:42am

economics
19-1 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high- or low-risk consumers, is there an adverse selection problem? 19-2 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a sale of stock to the ...
Thursday, May 2, 2013 at 1:20am

economics
19-1 Bicycle Insurance and Information Asymmetry If bicycle owners do not know whether they are high- or low-risk consumers, is there an adverse selection problem? 19-2 IPOs and Adverse Selection Should owners of a private company contemplating an IPO (a sale of stock to the ...
Thursday, May 2, 2013 at 12:58am

English II
On a proud round cloud in a white high night. A. alliteration B. consonance C. assonance D. limerick
Wednesday, May 1, 2013 at 8:02pm

math
Jim draws a sketch of his bedroom wall to scale. The actual wall is 10 feet long and 8 feet high. The drawing is one- sixth the length and width of the actual wall. What are the dimensions of the drawing in inches?
Wednesday, May 1, 2013 at 7:12pm

physics
a 1-kilogram block slides down a frictionless inclined plane with an angle of 35 degrees and 1.0 meters high. what is its velocity at the bottom of the plane?
Wednesday, May 1, 2013 at 5:43pm

English
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: ...
Wednesday, May 1, 2013 at 3:44pm

westbrook high
18.75 tons= how many lbs?
Wednesday, May 1, 2013 at 11:52am

islah publek school
a rectangular garden has a perimeter of 140m.its width is three quarter of its length. what is the length and width?
Wednesday, May 1, 2013 at 6:34am

islah publek school
a rectangular garden has a perimeter of 140m.its width is three quarter of its length. what is the length and width?
Wednesday, May 1, 2013 at 6:30am

4th grade math
So far John has run 1/4 of the way to school and walked 3/8 of the way. what fraction of the distance to school does John have left.
Tuesday, April 30, 2013 at 8:59pm

Help please
Samantha Greene is on the negotiating team for the next teacher's contract. The school board is proposing a 6% increase for each of the next four years. The teachers' counterproposal is 12% this year and 4% for each of the next three years. what is the difference in ...
Tuesday, April 30, 2013 at 6:56pm

Biology
1. Bone is formed from the deposition of __________ into connective tissue A. Calcium and Phosphate B.Sodium and potassium C. potassium and calcium D. Sodium and Phosphate E Actin and myosin 2. The major disadvantage of exoskeletons is A. Animal outgrows it B. it is not ...
Tuesday, April 30, 2013 at 5:24pm

Math
There are 5 staircases going from thr first to the second floor in school. Find the total number of ways that Andrea can go from the first floor to the second and then return to the first. Thank you
Tuesday, April 30, 2013 at 4:39pm

Math - Intro to Statistics (High School)
The average square footage in an apartment in a town is 1,800 square feet with a standard deviation of 120 square feet. The square footage is normally distributed. You randomly select 10 apartments in the town. What is the probability that the mean will be more than 1900 ...
Tuesday, April 30, 2013 at 12:10pm

MATHS
Mrs.Koh purchased new books for the school library, of which 6 were Mathematics books, 7 were Science books, 10 were Music books, 3 were Art books, and 4 were social studies books. All of these books were different. She picked a book from each subject to display in a row on a ...
Tuesday, April 30, 2013 at 6:26am

Math
The school's total attendance is 449, there are 81 present in math class, what percent of the total attendance is the attendance in the math class (to the nearest tenth)?
Monday, April 29, 2013 at 2:28pm

English
7. Identify the sentence that contains a word or phrase that should not be in italics. *Is Mel Gibson in the movie version of Hamlet or Macbeth? Lenny has trouble pronouncing the word bonjour. Glenda subscribes to Smithsonian and Time magazines. Thornton Wilder's play Our...
Monday, April 29, 2013 at 11:02am

Chemistry-Pressure
The wastewater solution from a factory containing high levels of salts needs to be diluted before it can be released into the environment. Therefore, two containers of waste solution are separated by a semipermeable membrane and pressure is applied to one container, forcing ...
Sunday, April 28, 2013 at 5:47pm

dimani agriculrural high school
describe leukemia and explain factors that contribute to the disease
Sunday, April 28, 2013 at 4:01pm

School (Plz read, really important)
Am I eligible to get a President's Award for Educational Excellence or the President's Award for Educational Achievement and Daughters of the American Revolution??? Here are my grades from last year and this year so far and everything else I accomplish: 7th Grade - 93....
Sunday, April 28, 2013 at 12:40pm

trig
at one point in the day, a tower that is 150 feet high casts a shadow that is 210 feet long. Find, to the nearest tenth of a degree, the angle of elevation of the sun at that point
Sunday, April 28, 2013 at 12:10pm

thohoyandou secondury school
provide 8 ways in which you critically discuss how life style/behaviour of cancer disease impact on the teenager
Sunday, April 28, 2013 at 11:28am

Herndon High
cos15°cos30°- sin15°sin30° =
Saturday, April 27, 2013 at 8:37pm

South Tahoe Middle School
A loan of $20,000 at 8% with payments & interest of $1,800. What is the amount owed after 11 payments have been made?
Friday, April 26, 2013 at 10:23pm

english
Questions about Avi(the author) Why was school a constant struggle for him? Avi kept writing because of the encouragement of his family and the help of whom? After college, what job did Avi take? where? When did Avi become interested in children's literature?
Friday, April 26, 2013 at 8:25pm

computer science
What does it mean when there is a high prior probability in terms of Baynesian statistics?
Friday, April 26, 2013 at 4:55pm

AP Statistics
A school psychologist reports that the mean number of hours the students at this school sleep each night is 8 hours. The students believe the mean is not 8 hours. To find an estimate of the true mean, they select a random sample of 15 students from their school and ask how ...
Friday, April 26, 2013 at 3:25pm

math
An observer is located on the ground 6 kilometers from the point where a space shuttle is launched (vertically). When the shuttle is 8 kilometers high, it is travelling at 500 kilometers per hour. Determine, for that moment, the rate at which the distance between the observer ...
Friday, April 26, 2013 at 1:04am

English
13.The trouble with being a(n) (underscore pessimist) is that you are so taken up with what is going wrong that you are unaware of what is going right pessimist 14.It does not (prosecute detract) in the least from his reputation as a great player to say that all the team ...
Thursday, April 25, 2013 at 10:30pm

math-high school
If the probability of an event happening is 2/5, then the probability of the event not happening is 3/5? This is False. The answer is 1/3. Explain why the answer is 1/3
Thursday, April 25, 2013 at 8:57pm

Statistics
A school is running a raffle. There are 100 tickets, of which 3 are winners. You can assume that tickets are sold by drawing at random without replacement from the available tickets. Teacher X buys 10 raffle tickets, and so does Teacher Y. Find the chance that one of those two...
Thursday, April 25, 2013 at 5:05pm

Physics
Why do the passengers in high-altitude jet planes feel the sensation of weight while passengers in the International Space Station do not? Please help; need an original answer no Google search. Thank you in advance...
Thursday, April 25, 2013 at 3:58pm

English-Room 101 speech
I have to come up with a speech about what I feel should go into room 101. Room 101 is a british tv programme, which came from a book. It's basically when people give reasons of what they don't like. The presenter decides, what goes into room 101. I am doing a similar ...
Thursday, April 25, 2013 at 2:37pm

Right angle trigonometry
A sailor sights both the bottom and top of a lighthouse that is 20 and m high and which stands on the edge of a cliff. The two angles of elevation are 3 and 42. To the nearest meter, how far is the boat from the cliff?
Thursday, April 25, 2013 at 9:33am

physics
A heat engine absorbs 848 J of energy per cycle from a high-temperature source. The engine does 417 J of work during each cycle, expelling 431 J as heat. What is the engine’s efficiency?
Thursday, April 25, 2013 at 1:18am

algebra1
the school bought a new copy machine which makes 20 copies per minute.the old machine makes 12 copies per minute.francine needs 1000 copies,so she uses both machines.how long will it take to have the copies
Thursday, April 25, 2013 at 12:08am

Algebra
One more... Faye wants to know how tall her school building is. On a sunny day, she measures the shadow of the building to be 6 feet. At the same time, she measures the shadow cast by a 5 foot statue to be 2 feet. How tall is her school building? Thank you so much for your help.
Wednesday, April 24, 2013 at 9:54pm

english
these are questions based on the book to kill a mockingbird 1. how does atticus explain to scout a way of getting along in school and with other people, in chapter 3 2. why does atticus think it is just as well that the ewells do not attend school, chapter 3 3. what does his ...
Wednesday, April 24, 2013 at 7:33pm

Physical science
A ball is thrown up at 8m.s from the roof which is 60m high.it strikes the balcony below after 4s.the ball then bounces off the balcony and strikes the ground.ignore the effects of friction.calculate magnitude of the velocity at which the ball strike the balcony?
Wednesday, April 24, 2013 at 4:08pm

math
If a rocket is shot upward with an initial speed of 176 feet per second from a platform 64 feet above the ground, when will the rocket be at its maximum height and how high will it be? Hint: The graph of a parabola is symmetric.
Wednesday, April 24, 2013 at 12:25pm

statistikc
We want a confidence interval for the mean IQ of all the 7th grade girls in that school district. We do not know the population standard deviation so we use the confidence interval that uses the t. In order to use the t-interval we need to assume that the variable IQ has a ...
Wednesday, April 24, 2013 at 11:15am

algebra1
the school bought a new copy machine which makes 20 copies per minute.the old machine makes 12 copies per minute.francine needs 100 copies,so she uses both machines.how long will it take to have the copies
Tuesday, April 23, 2013 at 11:04pm

biology
In a natural population of outbreeding plants, the variance of the total number of seeds per plant is 16. From the natural population, 20 plants are taken into the laboratory and developed into separate true-breeding lines by self-fertilization—with selection for high, ...
Tuesday, April 23, 2013 at 6:45pm

Psychology
Janet has been attending Killian High School for three years. At the beginning of her senior year, she is enrolled in Ms. Brosham's AP English Class. She heard from her two older siblings that Ms. Brosham was a hard-nosed, crusty teacher who did not tolerate uncertainty. ...
Tuesday, April 23, 2013 at 4:06pm

statistics
2. Why is it important to know the mean and standard deviation for a data set when applying the empirical rule? 3. If we are focused on 68% of the normal distribution, what percentage of the distribution is left in the upper tail only? 4. What value separates the 50% of the ...
Tuesday, April 23, 2013 at 3:43pm

English
Take the subject you explored in Part 1 of Submission 2 and narrow it down so that it can be covered in one paragraph. You might use one of the two techniques below. 1. Use one incident from the Answers column of your chart to illustrate an idea. Example: Writing Idea: Fads ...
Tuesday, April 23, 2013 at 2:58pm

khesethwane sec school
hw to address air pollution
Tuesday, April 23, 2013 at 1:29pm

Medical Billing and Coding
1. You're an outpatient coder in Dr. Smith's office. When you code procedures, you're probably using _______ codes. A. ICD-10-CM B. ICD-9-CM C. HCPCS D. CPT ANSWER 2. You're a coder who's reviewing the record of a 62-year-old woman who was admitted to the ...
Tuesday, April 23, 2013 at 1:16pm

english Ms. Sue Help Please check my answers
Jaws of the Water ACT TWO At rise we see DAD, TINA, and MARK rushing in and out of the living room. Each enters carrying important items—such as sleeping bags, rain gear, and gallons of water—sets them down, and exits. All three come in together, and MOM bursts ...
Tuesday, April 23, 2013 at 12:40pm

Operations Research
The Ploughman family farm owns and operates a 640-acre farm that has been in the family for several generations. The Ploughman’s always have had to work hard to make a decent living from the farm and have had to endure some occasional difficult years. Stories about ...
Monday, April 22, 2013 at 9:10pm

Math
Shaun rides 8 kilo meters west from his house to school. After school he rides 6 kilo meters north to Mario's house. What is the distance from Mario's house to Shaun's house measured in a straight line?
Monday, April 22, 2013 at 9:07pm

Medical Billing & Coding
1. You're an outpatient coder in Dr. Smith's office. When you code procedures, you're probably using _______ codes. A. ICD-10-CM B. ICD-9-CM C. HCPCS D. CPT ANSWER 2. You're a coder who's reviewing the record of a 62-year-old woman who was admitted to the ...
Monday, April 22, 2013 at 8:53pm

Math
The school bus stops at Randy's stop at 8:15 a.m. Randy arrived at the bus stop at quarter after 8. Did he miss the bus? Explain.
Monday, April 22, 2013 at 7:52pm

Study?
I have to take a test tomorrow on math to decide whether or not I can make it into the next grade same for tomorrow for reading. What should I do to study? I don't have a textbook to study cause it's at school. Should I look over my notes on everything I covered in ...
Monday, April 22, 2013 at 7:48pm

constitution/essay
Write your paper about a hypothetical proposal that is before the elected school board for the public schools in your city. The proposal stirs deep controversy in the community. Opponents claim that it would violate the Constitution’s prohibition against an “...
Monday, April 22, 2013 at 7:13pm

Art Appreciation
Compare Raphael's School of Athens with Veronese's Christ in the House of Levi. How did each work reflect the environments of Rome or Venice?
Monday, April 22, 2013 at 11:19am

Principles of Management
Question 1 of 20 5.0 Points Which of the following is NOT a benefit of planning? A. Helps you check on your progress B. Helps you think ahead C. Helps you cope with uncertainty D. Helps you compare your results to a standard Reset Selection Question 2 of 20 5.0 Points XYZ ...
Monday, April 22, 2013 at 9:51am

High School Diploma - Writing Skills
Pennfoster - Questions 1 - 20 I need to compare the answer. Please help.
Monday, April 22, 2013 at 9:02am

college physics
How many seconds would it take a 7.00hp motor to raise a 475 lb boiler to a platform 38.0 ft high?
Monday, April 22, 2013 at 8:18am

Physics
Neglecting air resistance, how high could a 0.15kg baseball be thrown if it is throw straight up at a speed of 25m/s?
Monday, April 22, 2013 at 12:05am

MATH HELP!!!!!!!!!!
If the first bell is at 8:12 but the all the buses are at the school at 8:00 (around 8:05 they let all the students out of the bus). It's takes 41 minutes from home to get to school. What time does your bus comes in the morning and what time you have to walk up? please ...
Saturday, April 20, 2013 at 8:45pm

COOP Exam?? (practice)
Is there any online COOP exam I can practice to pass that COOP exam I'm taking (I'm applying to catholic high school. It's a private school). This what it will be on the exam: Test 1 Sequences This test measures the student’s ability to comprehend a rule or ...
Saturday, April 20, 2013 at 5:52pm

Daycare managment
1. Which of these is a benefit of unstructured outdoor play? A. Learning of rules B. Emotional well-being C. Video game skill D. Learned helplessness 2. Children are considered obese when they're ______ percent over their ideal body weight. A. 15 B. 10 C. 20 D. 40 3. A(n) ...
Saturday, April 20, 2013 at 4:29pm

chemistry
At high temperature, 2.00 mol of CH2O was placed in a 4.00 L container where it decomposed via the equilibrium CH2O(g)<=>CO(g)+H2(g) . At equilibrium, the concentration of CO was measured to be 0.0317 M. What is Kc for this reaction at this temperature?
Saturday, April 20, 2013 at 9:56am

theology class????
I'm Christian and I'm applying to a catholic high school (due to the budget cuts in my district). The thing is that I'm required to take theology (Religion class) for four years of high school. ... I'm just wondering, it's theology interesting, fun... and ...
Saturday, April 20, 2013 at 9:07am

westonaria high school
Critically discuss 6 Ways in which the drought can impact negatively in one's health
Saturday, April 20, 2013 at 8:17am

Animal. Homework
Do male dogs go through heat? My girlfriend asked me to look it up for her school, but neither of us are finding it.
Friday, April 19, 2013 at 4:05pm

P&P
Peter is walking from the library to school at a rate of 40 meters per minute. At the same time, Paul is walking from school to the library. After they meet each other, Peter still needs 6 minutes to get to school, while Paul is 200 meters away from the library. What is the ...
Friday, April 19, 2013 at 3:31pm

Probability
If 5 juniors and 4 seniors apply for a job at a school which has 2 openings, what is the probability that 1 junior and 1 senior will be randomly chosen for the job.
Friday, April 19, 2013 at 12:52pm

Algebra
A shingle falls straight down from the roof of a building that is 144 feet tall. a. Use a vertical motion model to write an equation that gives the height h of the shingle t seconds after it falls. b. When does the shingle hit the ground? c. If the same shingle were dropped ...
Thursday, April 18, 2013 at 9:13pm

math
melissa walks 1 and a half miles to school. After school she walks 7 eights of a mile to the park. how many more miles does she walk to school?
Thursday, April 18, 2013 at 8:08pm

Math
4.At the school pep rally 3 out of 7 students wore colors. Based on this info if 350 students attend the next pep rally how many of these students will wear school colors A.150 B>50 C>200 D.not here A
Thursday, April 18, 2013 at 7:22pm

Maths/ Calc
Supplies are dropped from a stationary (not moving up or down) helicopter and, after some amount of time, land on the ground with a velocity of -160 feet per second. Assumptions: Start time at t = 0 and ignore air resistance. Recall that the height function is given by y(t)= ...
Thursday, April 18, 2013 at 6:46pm

Math
Melanie is going to read a 219 page book. She reads at a rate of 20 pages per day. BAsed on this info which of the following statements is a reasonable conclusion A.she will have read less than 1/2 of the book after 5 days B.She will have read more than 13 of the book after 3 ...
Thursday, April 18, 2013 at 5:52pm

Math
Max asked 50 students in his school which breakfast cereal they prefer. The table below shows the results of his survey. What decimal represents the fraction of students who prefer Fruit Crunchies? 12 like Yummy Flakes 25 like Choco Crunch 13 Like Fruit Crunchies .6 2.Emmer is...
Thursday, April 18, 2013 at 5:33pm

History
4. Which of the following influenced the presidential election of 1980? high inflation low gas prices racial tensions *a war with Iraq Thank You.
Thursday, April 18, 2013 at 11:32am

chemistry
Suppose you do not know the enthalpy of decomposition of the process: CaCO3 = CaO + CO2 Explain in terms of thermodynamic parameters why heating to a high temperature might turn this decomposition to a spontaneous process.
Thursday, April 18, 2013 at 10:10am

LIFE ORIENTATION
RECOMMENDATIONS ON HOW TO ADRESS PRACTISE OF HIGH RISK SEXUAL BEHAVIOUR AMONG ADOLESCENTS
Thursday, April 18, 2013 at 7:54am

Statistics
A high school counselor is interested in the percentage of students who will be going to college. She randomly picks 60 students and finds that 53 will be going to college. Use a 95% confidence level to find the population proportion. a) State the 95% confidence interval for ...
Wednesday, April 17, 2013 at 11:20pm

Math
pedro and maria spend the same amount of time driving to school. pedr average is 50 mph and maria's average is 30 mph. pedro drives 10 miles farther than maria, how long does each drive to school?
Wednesday, April 17, 2013 at 10:51pm

math
160 blocks , each block is 2 cm wide, 1 cm long & 4 cm high, what will be size of box that will hold all 160 blocks (each side cannot be less than 6 cm)
Wednesday, April 17, 2013 at 9:55pm

English
11.Financiers are planning to (accommodate amalgamate) various businesses in the US and England into one huge multinational corporation amalgamate 12.The US has a long history of providing (upheaval sanctuary) to those fleeing persecution abroad sanctuary 13.He enjoys (...
Wednesday, April 17, 2013 at 9:52pm

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