Saturday
March 28, 2015

Homework Help: High School

Post a New Question | Current Questions

Math
Wendy is building a set for a school play. She is putting up a fence around a rectangular plot of fake grass measuring 3 feet by 5 feet. She needs a fence post every foot. How many posts does she need?
Thursday, March 12, 2015 at 7:27pm

English.
Please check my answers? Letter of Recommendation Mary O'Dell PLTW Program Willow High School 1400 Old Tamah Road Irmo, SC 29067 April 11, 2007 Subject: Letter of Recommendation for Mr. Chris Moses To Whom It May Concern: Chris studied under my supervision as a student ...
Thursday, March 12, 2015 at 7:01pm

Math
Wendy is building a set for a school play. she is putting up a fence around a rectangular plot of fake grass measuring 3 feet by 5 feet. She needs a fence post every foot. How many posts does she need?
Thursday, March 12, 2015 at 6:58pm

English*Checking Answers*
Hello, can someone check my english answers? The story: You have taken me prisoner with all my warriors. I am much grieved, for I expected, if I did not defeat you, to hold out much longer, and give you more trouble before I surrendered. I tried hard to bring you into ambush, ...
Thursday, March 12, 2015 at 6:53pm

Analytical Chemistry
Given a 300 ml solution containing 0.2M H2L+ calculate the pH after the addition of 130.00 ml of 0.6M KOH. -----pH = 9.377 What total volume of KOH must be added to reach pH of 10.00 ---0.386 moles However, I am getting an amount of ml that is way too high, according to the ...
Thursday, March 12, 2015 at 5:55pm

Science - 7th grade
Can you check my homework? (don't think I'd posted before) 38. How does natural selection lead to evolution? a. Organisms mutate to adapt to their environment. b. Helpful traits accumulate among surviving members of the species. c. Overproduction provides food for ...
Thursday, March 12, 2015 at 5:41pm

7th grade geometry
When wrapping a present in the shape of a rectangle prism, joe adds an additional 2.5 feet of paper to allow for overlap. How many sq ft does he use to wrap a gift 3.5 ft long, 18 inches wide, and 2 ft high?
Thursday, March 12, 2015 at 5:34pm

english confused
ive read this story over five times and still dont really get the meaning of bia's dream help plzz RED MESA, Arizona (Achieve3000, July 21, 2007). Although she grew up as a Diné, the term Navajo members use to describe their nation, young Andrethia Bia measured her ...
Thursday, March 12, 2015 at 3:58pm

Physics
A 100 lb block of ice slides down an incline 5.0 ft long and 3.0 ft high. A worker pushes up on the ice parallel to the incline so that it slides down at constant speed. The coefficient of friction between the ice and the incline is 0.10. Find (a) the force exerted by the ...
Thursday, March 12, 2015 at 1:33pm

Physics
A diver running 1.8 m/s dives out horizontally from the edge of the cliff and 3 s later he reaches the water below. (a) Calculate the resultant velocity (with direction) of the diver just before he hits the water. (10) (b) How high is the cliff, and how far from its base did ...
Thursday, March 12, 2015 at 8:55am

English
For school I have to read Pride and Prejudice. My teacher gave us an assignment where we have to find a different literary element every couple of chapters. I have been searching for a while now and can't seem to find anything. It has to be between chapters 44 and 50 and ...
Wednesday, March 11, 2015 at 11:25pm

Physics
A 100 lb block of ice slides down an incline 5.0 ft long and 3.0 ft high. A worker pushes up on the ice parallel to the incline so that it slides down at constant speed. The coefficient of friction between the ice and the incline is 0.10. Find (a) the force exerted by the ...
Wednesday, March 11, 2015 at 10:10pm

algebra
how long does it take for a rock that is falling down from a distance of 200ft high? what is the formula is used for this problem?
Wednesday, March 11, 2015 at 9:19pm

social studies 8th
1. The authorization to create counties for the purpose of carrying out state laws and programs originally came from the (1 point) Supreme Court.*** Georgia General Assembly. Declaration of Independence. Georgia’s Constitution of 1777. 2. The primary role of counties in ...
Wednesday, March 11, 2015 at 8:55pm

Math 5th grade
John brings fruit punch to a school party. He brings 6 gallons of fruit punch but the students only drink 3/4 of it. How much did they drink?
Wednesday, March 11, 2015 at 8:48pm

SOCIAL STDIES HELP!!!!!
A case in which a group or individual claims that another group or individual has done them wrong is called a(n) (1 point) trial case. civil case. criminal case. appellate case.*** Which court has jurisdiction over death penalty cases in Georgia? (1 point) state court juvenile...
Wednesday, March 11, 2015 at 8:24pm

Science
After an avalanche, a huge block of a stone slid down a mountain and landed in the middle of a road. People in the nearby town had a very difficult time moving it out of the road, The block of stone is difficult to move because. it has a high amount of momentum has balanced ...
Wednesday, March 11, 2015 at 6:25pm

Physics
A 100 lb block of ice slides down an incline 5.0 ft long and 3.0 ft high. A worker pushes up on the ice parallel to the incline so that it slides down at constant speed. The coefficient of friction between the ice and the incline is 0.10. Find (a) the force exerted by the ...
Wednesday, March 11, 2015 at 4:36pm

math
An aeroplane leaves a runway and climbs at an angle of 15 degrees. After flying 800 meters, how high is it above the runway?
Wednesday, March 11, 2015 at 4:28pm

not school
Needing help setting up equation.if 1/4 of inch is equal to one foot of actual size dimension,determine the length represented by 7/8.is it a division problem.and if so he would I write it out
Wednesday, March 11, 2015 at 3:04pm

Chemistry
High-pressure liquid chromatography (HPLC) is a method used in chemistry and biochemistry to purify chemical substances. The pressures used in this procedure range from around 500 kilopascals (500,000 Pa ) to about 60,000 kPa (60,000,000 Pa ). It is often convenient to know ...
Wednesday, March 11, 2015 at 11:24am

language arts
WEDNESDAY March 11, 2015 SCHOOL SUBJECTS Art Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th ...
Wednesday, March 11, 2015 at 9:45am

Physics
A 100 lb block of ice slides down an incline 5.0 ft long and 3.0 ft high. A worker pushes up on the ice parallel to the incline so that it slides down at constant speed. The coefficient of friction between the ice and incline is 0.10. Find the force exerted by the worker. (I&#...
Wednesday, March 11, 2015 at 2:48am

Statistics
In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. More than a decade ago, high levels of lead in the blood put 87% of children at risk. A concerted ...
Tuesday, March 10, 2015 at 10:43pm

Science Help Please
1. Which of the following correctly describes a radio wave? A. long wavelength and high frequency B. long wavelength and low frequency C. short wavelengh and low frequency D. short wavelengh and high frequency Is the answer B? 2. When the energy of a light wave is transferred ...
Tuesday, March 10, 2015 at 10:24pm

Penn Foster
06042500 Which of the following situations is an example of overall cost leadership? A. A dress manufacturer wants to make its product unique in its category B. A company that manufactures school desks is looking for ways to make its desks less expensive than its competition C...
Tuesday, March 10, 2015 at 8:52pm

math
in 2010, 25 parents participated in the band booster organization at king middle school. participation increased to 40 parents in 2011 and 55 parents in 2012. if the trend continues, about how many parents can be expected to participate in 2013? i think it is 70 parents in 2013
Tuesday, March 10, 2015 at 8:17pm

math
in 2010, 25 parents participated in the band booster organization at king middle school. participation increased to 40 parents in 2011 and 55 parents in 2012. if the trend continues, about how many parents can be expected to participate in 2013? i think it is 70 parents in 2013
Tuesday, March 10, 2015 at 7:59pm

ECE 311
a child who acquires a reputation for being a trouble maker? A usually has a high level of self-esteem B can easily overcome it C may experience increasing difficulty in forming friendships D also exhibits a strong degree of reactive aggression
Tuesday, March 10, 2015 at 6:52pm

Math
for a school assignment, santiago has to give three possibilities for the dimensions of a retangle that has a perimeter of 28 ft and an area greater than 30 ft. what are two other possibilities other than 10ft of base and 4 ft for height
Tuesday, March 10, 2015 at 6:03pm

math
Nikki's school day last 7 hours, 20 minutes. How many minutes does Nikki's school day last? Explain how you found the answer
Tuesday, March 10, 2015 at 4:59pm

Statistic
In the following problem, check that it is appropriate to use the normal approximation to the binomial. Then use the normal distribution to estimate the requested probabilities. More than a decade ago, high levels of lead in the blood put 87% of children at risk. A concerted ...
Monday, March 9, 2015 at 11:53pm

english
Fire from the Rock is a great book that I would definitely recommend to others. It is set in 1957 Little Rock, Arkansas, a city boiling over racial segregation. Black and white youths are hot blooded and hot tempered, and many adults fan these flames of anger and violence. The...
Monday, March 9, 2015 at 11:30pm

MATH!!!!! NEED HELP NOW !!!!
John rolled a standard number cube 20 times. The cube landed on the number 3 six times. What is the experimental probability that John will roll a number 3 the next time he rolls the number cube? * 3/5 2/5 3/10 7/10 There are 12 girls and 8 boys in Mrs. Laterrade's LL. ...
Monday, March 9, 2015 at 10:08pm

MATH!!! NEED HELP FAST!!!
which of the following types of information is NOT suited for display on a double bar graph? A. populations of boys and girls at three different schools B. number of records versus compact discs sold each week during a one month period at music den C. the weekly interest rate ...
Monday, March 9, 2015 at 8:40pm

Math Please Help
In a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana...
Monday, March 9, 2015 at 5:31pm

Math
in a recent survey of middle school students about pizza toppings, it was found that 25 students like pepperoni pizza, 31 like banana peppers pizza, and 5 likes both pepperoni and banana peppers on their pizza. if 66 students were surveyed, how many students do not like banana...
Monday, March 9, 2015 at 5:09pm

Science
The Periodic Table 1) What conclusions can be drawn about the relationship between the arrangement of elements on the periodic table and the patterns observed in their properties? :Properties of elements are related to atomic numbers.*** :Properties of elements are related to ...
Monday, March 9, 2015 at 12:16pm

Math
A flower planter is to be made from landscape ties that are 4 feet long, four inches high and six inches wide. Each planter is 4 ties high. Describe how to build the planters so that they are square
Monday, March 9, 2015 at 12:10pm

physics for physical science
A stone thrown vertically upwards with a speed of 12m/s from the edge of Cliff 70m high. Calculate the time the stone takes to hit the bottom of the cliff.
Monday, March 9, 2015 at 6:58am

Physics - Mini Lab
The reason I didn't do this was because I was gone the day they did this at school. And the teacher said I couldn't do it at school. So I need help and my teacher is a jerk, so I have no idea what to do. Please help me. I really need a good grade in this class. Please...
Sunday, March 8, 2015 at 8:25pm

High School Algebra II
Hey friends, I have a big assignment I've been given that I really, really could use an 100% on. I've been working on it for hours and have a decent amount done, have had teacher help, and have had friends work with me on it, but I still need help. If anyone has any ...
Sunday, March 8, 2015 at 7:24pm

laws/georgia
1. Which of the following are accurate statements regarding the origins of county government? (1 point) County seats served as social and economic hubs. County governments gave rural Georgians a voice in the legislature. The county seat contained the courthouse. all of the ...
Sunday, March 8, 2015 at 4:27pm

Math
Mike and Lani stand 21.2 meters apart. From Mike’s position, the angle of elevation to the top of the Eiffel Tower is 40°. From Lani’s position, the angle of elevation to the top of the Eiffel Tower is 38.5°. How many meters high is the Eiffel Tower? Round to...
Sunday, March 8, 2015 at 2:13pm

Math
Mike and Lani stand 21.2 meters apart. From Mike’s position, the angle of elevation to the top of the Eiffel Tower is 40°. From Lani’s position, the angle of elevation to the top of the Eiffel Tower is 38.5°. How many meters high is the Eiffel Tower? Round to...
Saturday, March 7, 2015 at 9:10pm

math word problem
A high school student created a remote control car that can travel 66 feet in 6 seconds. Express as a unit rate A. 11 feet/sec B. 66feet/sec C. 11sec/feet D. 6 feet/sec
Saturday, March 7, 2015 at 7:43pm

statistics
The mean cost of domestic airfares in the United states rose to an all-time high of $385 per ticket
Saturday, March 7, 2015 at 3:26pm

Math
A gift box is 15 inches long, 10 inches wide, and 3 inches high. How much wrapping paper is needed to wrap the gift box? 225 in.2 450 in.2 525 in.2(my answer) 650 in.2
Saturday, March 7, 2015 at 3:12pm

algebra
Sheila is climbing on a ladder that is attached against the side of a jungle gym wall. She is 5 feet off the ground and 3 feet from the base of the ladder, which is 15 feet from the wall. How high up the wall is the top of the ladder?
Saturday, March 7, 2015 at 2:00pm

maths
there are 104 students in class 10th and 96 students in class 9th in a school .in a house examination the students ate to be evenly seated in parallel rows such that no two adjacent rows are of the same class. (a) find the maximum number of parallel rows of each class for the ...
Saturday, March 7, 2015 at 10:35am

story writing
Write a story from this line :- OUR SCHOOL LIBERIAN WAS HAPPY SUDDENLY...
Friday, March 6, 2015 at 8:54pm

MaTH
the school's track team ran the 220 relay in 7 minutes 46 seconds at their first track meet. The next meet, their time was 42 seconds shorter. At the next, their improvement was twice as great. What was their total running time at the last met?
Friday, March 6, 2015 at 5:22pm

@SraJMcGin Spanish Check
Hola! SraJMcGin was helping me yesterday with my Spanish sentences,(which was very helpful). Could you please check these last two I had and see if I'm on the right track? Thank you so much! :) Directions: Re-write the Spanish sentences in the present subjunctive. 1.) She ...
Friday, March 6, 2015 at 7:53am

5th grade math
It takes Marty 1 1/4 hours to get ready for school. If 1/5 of that time is used to shower, what fraction of an hour does it take him to shower? 1/4answer
Thursday, March 5, 2015 at 11:18pm

Math
At middle Avenue school,1/30 of students are on the track team. Of the track coach offered to buy pizza or subs for everyone 3/5 ordered pizza. What fraction of the students at middle Avenue school ate pizza? 1/30 divided by 3/5,1/30x5/3=5/90=1/18
Thursday, March 5, 2015 at 11:11pm

Math
When dropped on a hard surface, a rubber ball takes a series of bounces, each one about 4/5 as high as the preceding one. If the rubber ball is dropped from a height of 20 ft, what is the approximate distance the ball travels before coming to rest? Please explain how you got ...
Thursday, March 5, 2015 at 10:36pm

math
At a school camp, 30% of the students were boys. When 87 students left the camp after the second day, half the original number of boys were left behind, and the number of girls decreased by 20%. How many girls were at the camp in the beginning?
Thursday, March 5, 2015 at 3:29pm

Physics
A rocket moves upward, starting from rest with an acceleration of 26.3 m/s2 for 5.43 s. It runs out of fuel at the end of the 5.43 s but does not stop. How high does it rise above the ground?
Wednesday, March 4, 2015 at 9:33pm

Physical science
i push a 500n box up an inclined plane that is 4 m long and 1.2 m high. what force is applied to push the box up the ramp?
Wednesday, March 4, 2015 at 8:24pm

math
Nokia school day last 7 hours and 20 minutes how many minutes does Nikki's school day last explain how you found the answer
Wednesday, March 4, 2015 at 6:18pm

english work
Over the past ten years more than two dozen athletes have died from the medical condition known as heatstroke. Heatstroke occurs when the body’s internal temperature becomes so elevated that its cooling system begins shutting down. Who is most at risk? Surprisingly, it is...
Wednesday, March 4, 2015 at 5:28pm

Lititure
1. In the poems in this collection, who faces life with the most hopefulness and self-confidence? (1 point) the speaker in “Life Doesn’t Frighten Me” the speaker in “A Dream Within a Dream” the Oysters in “The Walrus and the Carpenter” the ...
Wednesday, March 4, 2015 at 10:03am

higher school
determine the fishers' ideal price index formular from both the laspeyre and paasche price indices formular
Wednesday, March 4, 2015 at 3:52am

Physics
Please help me with this question How much work is done by a boy of mass 70kg who ran up a flight of 31steps each15m high. Take g=10m/s^2
Wednesday, March 4, 2015 at 12:33am

Question
Im thinking of taking French for one of my electives for high school. If i ever need help would any one, be able to help me? Thank you.
Wednesday, March 4, 2015 at 12:13am

math
Emma's school plans to build a rectangular basketball court with an area of 150+175t square feet. The length of the basketball court is 25 feet.What is the width of the basketball court? Thank you!
Tuesday, March 3, 2015 at 10:42pm

math
Emma's school plans to build a rectangular basketball court with an area of 150+175t square feet. The length of the basketball court is 25 feet as shown in the following diagram. Thank you!
Tuesday, March 3, 2015 at 10:35pm

social studies
The North liked high tariffs on foreign goods because?
Tuesday, March 3, 2015 at 9:55pm

English
To Mr. Reed who had previously answered my question on realism in A Raisin In the Sun and told me to to write about Travis sleeping on the couch , thank you but I need to write realism in Acts 1, 2, 3 and since you thought that only the second one was wrong and isn't ...
Tuesday, March 3, 2015 at 8:36pm

math
At a school camp, 30% of the students were boys. When 87 students left the camp after the second day, half the original number of boys were left behind, and the number of girls decreased by 20%. How many girls were at the camp in the beginning?
Tuesday, March 3, 2015 at 7:08pm

Math, Analytic Geometry
Derek wants to determine the height of the top of the backboard on the basketball goal at the playground. He places a standard 12-inch ruler next to the goal post and measures the shadow of the ruler and the backboard. If the ruler has a shadow of 10 inches and the backboard ...
Tuesday, March 3, 2015 at 2:24pm

word problem
Ieda bakes 73 cupcakes and accidentally drops 5 of them. She divides them equally into 13 containers for a bake sale for the school band. How many cupcakes does Ieda have left?
Tuesday, March 3, 2015 at 12:40pm

physical science
A stone of 8 kg mass falls from the top of an 80 m-high building. Find the velocity of the stone when it reaches the ground
Tuesday, March 3, 2015 at 9:59am

utu secondary school papuanew guinea
A given mass of air has a volume of 6.0l at 1 atom.what volume will it occupy at 190mm hg if the temperature does not change?
Tuesday, March 3, 2015 at 5:06am

English
1. If I miss so much school again, how can I become a teacher? 2. If I miss so many schools again, how can I become a teacher? -------------------------- Which one is correct? Is #2 grammatical?
Tuesday, March 3, 2015 at 1:00am

ss
1. Which of the following are accurate statements regarding the origins of county government? (1 point) County seats served as social and economic hubs. County governments gave rural Georgians a voice in the legislature. The county seat contained the courthouse. all of the ...
Monday, March 2, 2015 at 7:57pm

grammar
The task was to add commas in the correct places. Did I place them correctly in the sentence below? One of the greatest classes he ever took was after school, as many of his friends left, he had to go to band practice, play the drums, guitar, and saxophone. (Personally, I ...
Monday, March 2, 2015 at 7:50pm

MATH
I dont get it. At all. HELP!! ¤Ð-¤Ð 😭 Jenna lives 4 3/10 miles from school. She estimates that she travels 4¡¿2¡¿5, or 40 miles each week. Is her estimate an overestimateor an underestimate? EXPLAIN!!!!
Monday, March 2, 2015 at 7:17pm

SOCIAL STDIES HELP!
Clyde is appearing before a judge today because he has missed 30 days of school this year without any medical excuse. Clyde is best described as (1 point) a juvenile delinquent. an unruly child. a deprived child. a guardian ad litem.*** 7. In which of the phases of the ...
Monday, March 2, 2015 at 6:19pm

Social Studies
1. Why did Japan need to rebuild its economy following World War II? because bombing had destroyed almost all of the country’s industry because Japan had a new democratic government because Japan wanted to switch to an agriculturally based economy because Japan had been ...
Monday, March 2, 2015 at 4:12pm

social studies
what is the greatest challenge facing people in turkey as a result of its diversity? 1. Turks must protect their status as the largest ethnic group 2. Turks must encourage other to follow Turkish traditions 3. Kurds must struggle to keep their cultures alive 4. Kurds must ...
Monday, March 2, 2015 at 11:55am

social studies
what is the greatest challenge facing people in turkey as a result of its diversity? 1. Turks must protect their status as the largest ethnic group 2. Turks must encourage other to follow Turkish traditions 3. Kurds must struggle to keep their cultures alive 4. Kurds must ...
Monday, March 2, 2015 at 11:27am

To "WOK..."
Please put your School Subject in the School Subject box (Examples: math, science, algebra, geography). When all you put is one letter, most tutors are not inclined to open your post since you are not following instructions.
Monday, March 2, 2015 at 8:59am

Trigonometry
From a window of one building, the angle of depression to the base of the second building is 29.5, and the angle of elevation to the top is 47.833333. If the building are 200m apart, how high is the second building?
Monday, March 2, 2015 at 8:32am

Math
0.6 of students walk to school. Of those 3/4 live within 1 mile of the school there are 640 students at the school. How many students walk to school and live 1 mile or farther from school? Thanks for the Help!
Monday, March 2, 2015 at 5:06am

Criminal Justice/Probation & Parole
The PSI: A. is based on the concept of parens patriae. B. is required in all felony cases. C. reflects classical school interest in the offender. D. None of the above I don't see A,B,C, in my textbook, so I am assuming it's D. Am I right?
Sunday, March 1, 2015 at 8:24pm

math
a traffic sign casts a shadow 6ft long while a mailbox next to it casts a shadow 3ft long. if the traffic sin is 7 ft high how tall is the mailbox
Sunday, March 1, 2015 at 5:00pm

science
A sandbag falls from a hot air balloon that is rising with a constant velocity of 15m.s 1)What is the acceleration of the bag the moment it fell from the hot air balloon? 2)What is the acceleration of the hot air balloon the moment the sandbag fell from it? 3)What is the ...
Sunday, March 1, 2015 at 2:39pm

Physics
A group of soldiers hid at the bottom and against the wall of a 100 m. high cliff. Unknown to them, the Evil rebels have positioned a cannon on top of the cliff; 8,000 m. from the edge. If the cannon has a muzzle speed of 320 m/sec, how close to the bottom edge of the cliff ...
Sunday, March 1, 2015 at 9:09am

tablun elementary school
the side of a square is 7x - 8y cm. what isthe area?
Sunday, March 1, 2015 at 7:07am

Statistics
Science scores for high school seniors in the United States are normally distributed with a mean of 78 and a standard deviation of 10. Students scoring in the top 10% are eligible for a special prize consisting of a laptop and $2,000. What is the approximate cutoff score a ...
Saturday, February 28, 2015 at 9:29pm

Chemistry
Acetone is one of the most important solvents in organic chemistry, used to dissolve everything from fats and waxes to airplane glue and nail polish. At high temperature, it decomposes in a first order process to methane and ketene (CH2=C=O).At 600C, the rate constant is 8....
Saturday, February 28, 2015 at 2:02pm

To Nombuso
I removed your post because you included personal contact information. That is not a safe thing to do online. --------------- Ask your school counselor for help. What are your grades in those classes? If they're high, then you have more choices. What do you want to do? Try...
Saturday, February 28, 2015 at 11:21am

Chemistry
Consider the uni molecular reaction cyclopropane? Propylene. The value of log A for high pressure limit is 15.17. Calculate the value of S? For the reaction. Calculate the contribution of S trans in the above reaction at 298K?
Saturday, February 28, 2015 at 7:25am

math
Each homeroom of a middle school receives 1/12 of a 5/6 acre of land. How many homerooms receive a plot of land?
Friday, February 27, 2015 at 10:38pm

ela
. In The Diary of Anne Frank, Act I, what causes the Franks and the Van Daans to move into the rooms on the top floor of the warehouse? A. Their own homes have been destroyed by bombs. B. They are hiding from the Nazis, who have been persecuting Jews. C. The warehouse has more...
Friday, February 27, 2015 at 6:40pm

statistics
For classes of 273 students, find the mean and standard deviation for the number born on the 4th of July, Ignore leap years. For a class or 273 students, would two be an unusually high number who were born on the 4th of July? I don't know how to find how many out of 273 ...
Friday, February 27, 2015 at 4:13pm

Statistics
1200 high school freshman were randomly selected for a national survey. Among survey participants, the mean grade-point average was 2.8, and standard deviation was 0.6. What is the margin of error, assuming a 95% confidence level?
Friday, February 27, 2015 at 1:18pm

Science
Hormones and Homeostasis 1) The human endocrine system is made up of which of the following structures? :Vessels. :Receptors. :Glands.*** :Chambers. 2. Which of the following best describes the function of the endocrine system? :It secretes chemical messengers that travel ...
Friday, February 27, 2015 at 1:16pm

Statistics
A criminologist is studying school violence, she selects a random sample of 25 adolescents aged 12 to 15 from a local middle school and asks the following,"How many times within the past school year have you been physically assaulted at school? She calculated the ...
Friday, February 27, 2015 at 1:15pm

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