Saturday
May 25, 2013

# Homework Help: High School

physics
The rear window in a car is approximately a rectangle, 1.8 m wide and 0.33 m high. The inside rearview mirror is 0.58 m from the driver's eyes, and 1.64 m from the rear window.
Wednesday, March 14, 2012 at 1:25pm

English
I urgently need you to check this. Thank you, Writeacher. 1) Sorry for disturbing you again. Our secretary told me she hasn't received your headmaster's email, yet. 2) Can you please send it again to the following email address.....? We'll be organizing a link to ...
Wednesday, March 14, 2012 at 9:02am

geometry
Robert is making a scale drawing of a painting that is 48in. wide by 120in. high. His paper is 12in. wide and 24in. tall. He decides to use the scale 1in.= 4in. Is this a reasonable scale?
Wednesday, March 14, 2012 at 1:59am

math
75 students are absent today. This is 10% of the students enrolled at the school. How many students are enrolled at the school?
Tuesday, March 13, 2012 at 11:16pm

math
75 students are absent today. This is 10% of the students enrolled at the school. How many students are enrolled at the school?
Tuesday, March 13, 2012 at 11:16pm

math
75 students are absent today. This is 10% of the students enrolled at the school. How many students are enrolled at the school?
Tuesday, March 13, 2012 at 11:16pm

statistics
A study of health care planning undertook a mail survey of hospital administrators in Arkansas, Louisiana, and east Texas. Research question: At á = .05, is the type of planning independent of the intensity of competition? (Data are from D. O. McKee, P. R. Varadarajan, ...
Tuesday, March 13, 2012 at 10:34pm

Social studies
Which of the following accurately describes a surplus? Consumer demand for a certain car is below the number of cars that are produced. The production costs for a certain car are below the sale price of that car. A car company tries to charge too high a price for a car and has...
Tuesday, March 13, 2012 at 9:11pm

math
nicks class has 30 students. 2/5 of his class sings in the school chorus. how many students sing in the chorus?
Tuesday, March 13, 2012 at 7:45pm

A ramp leading up to a loading platform is 3 m long and 1 m high at its highest point. If the friction is ignored, what work is needed to slide a 600-kg crate up the ramp at a constant speed? a) 2.00 *10^2 J b) 5.89 *10^2 J c) 1.80 *10^3 J d) 5.88 *10^3 J I believe the answer ...
Tuesday, March 13, 2012 at 5:38pm

English
I urgently need you to help me find the proper words. Thank you Writeacher 1) Thank you very much for sending me the list of your students. I was thinking of creating a link to our partnership ( I don't know how to express this) on my school webpage. 2) Five of your ...
Tuesday, March 13, 2012 at 5:26pm

english
i need proof reading with my work if i did any mistake. thanks 1. I learned that soil take crucial role in growing plants. If the soil is healthy, any plant will grew well on that soil. The plant will have a better quality, better flavor, and better nutritional values. 2. ...
Monday, March 12, 2012 at 11:03pm

math
After school, Chase spends 20 min reading, 30 min practicing the piano, 15 min cleaning his room, and 40 min doing his homework. Chase is busy for 105 min.What fraction of the time does he spends cleaning his room?
Monday, March 12, 2012 at 10:47pm

english ( need proofread)
1. I learned that soil take crucial role in growing plants. If the soil is healthy, any plant will grew well on that soil. The plant will have a better quality, better flavor, and better nutritional values. 2. People buy food that is cheap and convenient. In the market, there ...
Monday, March 12, 2012 at 9:37pm

math
the museum charges \$20 dollars for two people. and 28 for three people what is the equation that realtes the number of people in a group and the cost to enter a museum? write it in slope intercept form
Monday, March 12, 2012 at 8:27pm

math
THE EXPRESSION:553.7X+27,966 CAN BE USED TO APPROXIMATE THE AVERAGE ANNUAL SALARY IN DOLLARS OF PUBLIC SCHOOL TEACHER IN THE YEAR 1985+X 1. WHAT WAS THE AVERAGE TEACHERS SALARY IN DOLLARS OF PUBLIC SCHOOL TEACHER IN 1993? 2. IN WHICH YEAR WILL THE AVERAGE SALARY REACH \$45,000?
Monday, March 12, 2012 at 5:34pm

English
I'm pleased you can help me this week, too, Writeacher. Just a few things. 1) I've just had a parent-teacher meeting today. Some of my new students, whose grammar is very, very low and study very little complained about their bad marks in English. They are in their ...
Monday, March 12, 2012 at 2:35pm

critical thinking test AU
1. Question : The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses: Student Answer: 4 CORRECT an average ...
Monday, March 12, 2012 at 2:10pm

Chemistry
The explosive residue contains carbon, hydrogen and nitrogen where the percentage of nitrogen is high, calculate it from 0.5g of residue which eliminates ammonia gas on reaction with sodium hydroxide, and absorb by 50mL of Nby10 H2SO4. Unused acid is neutralized/titrated with ...
Monday, March 12, 2012 at 2:22am

physics
A 50.2 kg child slides down a water slide with a velocity of 1.1 m/sec at the top. At the bottom of the slide, she is moving horizontally, 1.5 meters above the water. She splashes into the water 2.5 meters to the right of the bottom of the slide. a) Assuming potential energy ...
Sunday, March 11, 2012 at 10:45pm

English
I have completed this test and I missed 4 questions. My answers are submitted in blue, can you tell me which questions are wrong. 1.Having studied small engine repair in night school, fixing the lawn mower was easy. dangling modifier 2. When I asked for a submarine, the ...
Sunday, March 11, 2012 at 10:37pm

English
Ms Sue or Damon, as Writeacher is on vacation, I really hope you can check my today's post. I still have a few other sentences.It is extremely urgent!!! 1) To be honest, I had never heard of Derek Landy, but I found out, to my surprise, that he is a well-known Irish ...
Sunday, March 11, 2012 at 3:25pm

As a growing number of producers pursue multichannel distribution, they could probably learn some lessons from the masters at the game—the big soda companies. Think of all the places in your community where you can purchase a Coke or a Pepsi. How is the soda promoted ...
Sunday, March 11, 2012 at 2:13pm

physics
Consider a system of N identical particles. Each particle has two energy levels: a ground state with energy 0, and an upper level with energy . The upper level is four-fold degenerate (i.e., there are four excited states with the same energy ). (a) Write down the ...
Sunday, March 11, 2012 at 1:20pm

MATH...YUCK!!!H8 IT
IM DOING A PROJECT FOR SCHOOL AND CAN"T FIND THE ANSWER.... WHY IS Pi so important?
Sunday, March 11, 2012 at 12:38pm

English
Which one of the following sentences demonstrates correct subject-verb agreement? A. A number of my friends have bought new cars recently B.Epena thinks five dollars are a lot of money C.Roberts friend Steve ,as well as his wife are going to the fair D. Each of his sisters go ...
Sunday, March 11, 2012 at 10:48am

Chemistry
Boron Phosphide, BP, is a semiconductor, and a hard, abrasion resistant material. It is made by reacting Boron tribromide and phosphorus tribromide in a hydrogen atmosphere at high temperature (>750 degrees C) (a) Write a Balanced chemical equation for the synthesis of BP (...
Sunday, March 11, 2012 at 4:11am

HELP! College Physics
A skateboarder shoots off a ramp with a velocity of 6.7 m/s, directed at an angle of 59° above the horizontal. The end of the ramp is 1.1 m above the ground. Let the x axis be parallel to the ground, the +y direction be vertically upward, and take as the origin the point ...
Saturday, March 10, 2012 at 4:10pm

English
I still have some sentences to check. Thank you very much to you all! 1) He was one of the most famous foreigners participating in the efforts against the fascist rebels/the fascists/fascism (are they all possible?) 2) His indifference to accepted values is caused by various ...
Saturday, March 10, 2012 at 3:32pm

calculus
A projectile is launched from a platform 20 feet high with an initial velocity of 72 feet per second, The height h of the projectile at t seconds after launch is given by h = –16t2 + 72t + 20 feet. (a) How many seconds after launch does the projectile attain maximum ...
Saturday, March 10, 2012 at 2:40pm

Just for I.AM..RUNNING.FROM.MYSELF,
I'm doing a poster in science and its about radon. Radon is a radioactive gas and it causes lung cancer, but i dont know what to do for the poster and it's due March 16,2012 but i have to turn it in by tomorrow so that the poster can get to the science specalist so the...
Friday, March 9, 2012 at 5:45pm

English
I've varied a few things. Can you check if everything is OK? Thank you. 1)If you want, I can ask my students to use both English and Italian for their messages so that your students can get enough practice of our language, too. They will be delighted to host their new ...
Friday, March 9, 2012 at 5:03pm

physics
Starting from rest at the top, a child slides down the water slide at a swimming pool and enters the water at a final speed of 4.00 m/s. At what final speed would the child enter the water if the water slide were twice as high? Ignore friction and resistance from the air and ...
Friday, March 9, 2012 at 4:36pm

English
Writeacher, I need your help to develop a few ideas. Thank you very much. 1) It would be really important if in the future a science teacher from your school could embark in a Comenius project (I don't know how to express it), which will enable him, on the one hand, to ...
Friday, March 9, 2012 at 4:00pm

Geometry
The ramp on the back of a mvoing van is 3 feet high and rises at an angle of 25 degrees. How high is the ramp? Round to the nearest foot.
Friday, March 9, 2012 at 1:40pm

Fluids
A pipe of constant diameter d = 10.5 cm carries water up a hill h = 38.1 m high. How much pressure is required at the bottom of the hill if the water is to reach the top? Any help would be great
Friday, March 9, 2012 at 12:27pm

English
I urgently need you to check this message I need to include in an email. Thank you, Writeacher. 1) Our students have started receiving post from their new Irish partners. It would be nice if you could send me a list of the students participating in the email partnership. 2) It...
Friday, March 9, 2012 at 9:22am

Homework Help: Catering(Gourmet Essentials) 1. In the dining room brigade system, the positions of maitre d’hôtel and/or captain may be combined under the title of A. communard. C. chef de salle. B. boulanger. D. sommelier. 2. Rachel and Mark are discussing the ...
Friday, March 9, 2012 at 6:35am

biology
humans have a double circulation system. there is a low pressure circulation and a high pressure circulation. (a) explain how the structure of the heart enables it to pump blood into two circulations at different pressures
Friday, March 9, 2012 at 6:24am

physics
At a low point in its swing, a pendulum bob with a mass of 0.2kg has a velocity of 4m/s. Ignoring air resistance, how high will the bob swing above the low point before reversing direction? Please explain and show work.
Friday, March 9, 2012 at 1:49am

math
In a particular year group one quarter of the pupils come to school by and 40% take the bus the remaining 42 pupils walk to school. How many pupils are in the year group
Thursday, March 8, 2012 at 2:06pm

physics
Calculate the hang time of a person who moves horizontally 2.00 m during a 1.23 m high jump. Express your answer with the appropriate units
Thursday, March 8, 2012 at 1:18pm

Science
Which of the following conditions would likely cause the activation energy to be high? A. atoms are close together B. the temperature is hot C. atoms are not close together D. a catalyst is present.
Thursday, March 8, 2012 at 11:37am

English
I don't have time to express these ideas more clearly. I really rely on your help, Writeacher. My sister's husband works as a journalist and therefore she and the children will probably accompany him to London for the Olympic Games and will be attending a summer ...
Thursday, March 8, 2012 at 7:44am

English
Writeacher, you didn't manage to check my post yesterday. I really need you to check just this part. I also included a few other things. Thank you very much in advance! 1) Mr. Gradgrind turns his attention to Bitzer, perhaps because he, though sitting a few rows in advance...
Thursday, March 8, 2012 at 7:11am

Algebra
31 - 2/3X > 27, then X < ?
Thursday, March 8, 2012 at 6:49am

Catering(Gourmet Essentials)
THURSDAY March 8, 2012 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...
Thursday, March 8, 2012 at 6:03am

Statistics
What significance does variance have to a set of data? is variance the same as coefficent of variation? when using coefficient of skewness, if you have a +1 or -1 value it signifies a high degree of skew. So does that refer to a postive/ negative skew or if not what exactly ...
Thursday, March 8, 2012 at 4:53am

Physics
A projectile mass of 0.500 kg is shot straight up with an initial speed of 28.0 m/s. A. How high would it go if there were no air friction? I got this answer, it is 40 m. B. If the projectile rises to a maximum height of only 34.0 m, determine the magnitude of the average ...
Wednesday, March 7, 2012 at 11:20pm

physics
Josh starts his sled at the top of a 2.0 m-high hill that has a constant slope of 25 degrees . After reaching the bottom, he slides across a horizontal patch of snow. The hill is frictionless, but the coefficient of kinetic friction between his sled and the snow is 0.07.
Wednesday, March 7, 2012 at 10:14pm

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. They decide to pool their resources to purchase the company. This would be called a _______ buyout. A. leveraged C. ...
Wednesday, March 7, 2012 at 10:05pm

physics
A high-speed sander has a disk 8.00 cm in radius that rotates about its axis at a constant rate of 1100 revolutions per minute. Determine the angular speed of the disk in radians per second.
Wednesday, March 7, 2012 at 9:19pm

Next to Willow,our school is in the Dark Ages. How does the author organize the support for this argument? A.By using cause and effect B.By using comparisons C.By using problem and solution D.By using opinions B?
Wednesday, March 7, 2012 at 5:30pm

statistics
Of all 3- to 5-year old children, 56% are enrolled in school (p=0.56). We are looking at a sample of 500 (n=500) such children, and this is thought to follow a binomial distribution. Use the normal approximation to the binomial to find the probability that at least 300 of ...
Wednesday, March 7, 2012 at 4:58pm

physics
A penny is dropped from a 300ft high bridge. a. How long does it take for the penny to reach the ground below? b. What is the velocity of the penny upon impact?
Wednesday, March 7, 2012 at 3:26pm

Physical science
Using the kinetic theory and explain why the weather balloon will burst at high heights?
Wednesday, March 7, 2012 at 8:55am

west oktibbeha school
chemistry question help me find the answer to this question How many atoms of chlorine are present in 6 moles of chlorine gas
Tuesday, March 6, 2012 at 11:15pm

PHYSICS
At he lowest point in its swing, a 2.5 kilogram pendulum bob has 40 joules of kinetic energy. How high will it swing when it reaches the highest point in its swing? 40/2.5 x 9.8 = 1.63 joules
Tuesday, March 6, 2012 at 10:02pm

math
everyday when lisa returns from school she puts her change from buying lunch into a jar on her hair dresser. this weekend she decided to count her savings. she found that she had 72 coins all nickels and dimes. the total amount was \$4.95. how many coins of each kind did she ...
Tuesday, March 6, 2012 at 7:59pm

Geometry
An A-frame house is 40 feet high and 30 feet wide. Find the angle that the roof makes with the floor. Round the angle nearest degree.
Tuesday, March 6, 2012 at 5:53pm

english
How teachers of secondary school students can engage and capture their students in spite of all temptations in life. what i think teacher can do is to make some jokes in between class. i dont know what else to write please help.
Tuesday, March 6, 2012 at 5:42pm

Science HELP!!!!!
Why isn't there a solar eclipse and a lunar eclipse each month??????? Compare the size of high and low tides in a spring tide and a neap tide.What causes the difference???????
Tuesday, March 6, 2012 at 5:39pm

math
the ratio of boys to girls is 9 to 10. There are 189 boysin the school. How many girls are there?
Tuesday, March 6, 2012 at 5:36pm

math
at hill school 112 new books arrived for each grade 2nd, 3rd and 4th which shows one way to find about how many books arrived at the school in all
Tuesday, March 6, 2012 at 3:38pm

English
Just two more things. I can't find a proper verb to include in 1. 1) Can I officially inform the parents about the existing cooperation between our schools, which will be accomplished (??)through various projects? 2) As I wrote you or as I wrote to you in my previous email...
Tuesday, March 6, 2012 at 2:12pm

Principle
"the maximum blood pressure in the upper arm of healthy person is about 12mmHg.If a vertical tube open to the atmosphere is connected to the vein in the arm of the person,determine how high the blood will rise in the tube.Take the density of blood to be 1050kg/m3"
Tuesday, March 6, 2012 at 11:59am

English
I varied my original email including other information. I wonder if you could help me express the new things, in 4 and 7. Thanks a lot! 1) Thank you very much for your prompt reply. 2) Our students would really like to be involved in a student exchange programme with your ...
Tuesday, March 6, 2012 at 10:02am

English
I urgently need you to check the following sentences. Thank you,Writeacher. 1) They left to go back home. 2) They always sulk about having to do too much homework. 3) He's having a sulk about ... (could you help me complete this sentence?) 4) Peter and Mary are looking for...
Tuesday, March 6, 2012 at 9:46am

English
Writeacher, I urgently need you to check this email. In particular, I wrote a few things I need to express better. 1) He has such a strong determination he always menages to achieve his goals. Thank you very much for your prompt reply. 2) Our students would really like to be ...
Tuesday, March 6, 2012 at 8:16am

Physics
What type of spectrum is produced by a hydrogen gas when a high potential difference is applied to it? a visible spectrum emission spectrum absorption spectrum a continuous spectrum I've been all through my notes and cant figure this one out :/
Tuesday, March 6, 2012 at 12:33am

statistics
The average middle-distance runner at a local high school runs the mile in 4.5 minutes, with a standard deviation of 0.3 minute. Find the percentage of a runners that will run the mile in less than 4 minutes?
Monday, March 5, 2012 at 11:27pm

algebra
Use the following to answer the next three questions: the height, h, of a ball t seconds after it is released for a jump shot in a basketball game can be modeled with the equation h = −16t2 + 12t + 8. The rim of the basket is 10 feet high. Which of the following is the ...
Monday, March 5, 2012 at 9:10pm

algebra
Use the following to answer the next three questions: the height, h, of a ball t seconds after it is released for a jump shot in a basketball game can be modeled with the equation h = −16t2 + 12t + 8. The rim of the basket is 10 feet high. Which of the following is the ...
Monday, March 5, 2012 at 9:10pm

Physics
Pilots can be tested for the stresses of flying high-speed jets in a whirling "human centrifuge," which takes 1.8 min to turn through 21 complete revolutions before reaching its final speed. 1. What is the angular acceleration?(rev/min^2) 2. What is the final angular...
Monday, March 5, 2012 at 9:05pm

English
Writeacher, could you please check the very last things. It's really late here and I need to go to bed. Thank you. 1) Unfortunately, we have just sent in our Comenius proposal for a science project on biodiversity in water with both a German and a French school. 2) However...
Monday, March 5, 2012 at 6:05pm

English
I left out a few other things I would like to include in an email. Thank you very much. 1) Unfortunately, we have just sent in our Comenius proposal for a science project on biodiversity in water with a German and a French school. 2) However,being an English teacher myself, I ...
Monday, March 5, 2012 at 5:06pm

Math
Two hundred four students go to after school care at Ming's school. The students are divided into 12 equal groups. Six groups play on the playground while 6 gropus work on their homework. What is the greatest number of students that play on the playground at 1 time? A.17 B...
Monday, March 5, 2012 at 4:26pm

English
Writeacher, I included a few sentences for you to check. I wonder if you coud help me organize my ideas more clearly. 1) Winston is tortoured by the Thoughtpolice and threatened that he will be attacked by rats, the thing which he hates most. 2) They make him believe that ...
Monday, March 5, 2012 at 3:48pm

physics
An egg is thrown nearly vertically upward from a point near the cornice of a tall building. It just misses the cornice on the way down and passes a point a distance 48.0 m below its starting point at a time 5.00s after it leaves the thrower's hand. Air resistance may be ...
Monday, March 5, 2012 at 3:45pm

University Physics
Building A and Building B are 30m away from each other, on the 4th floor; 35m high, someone has set up a slingshot from the window on the 4th floor of building A and is trying to sling a balloon into the window directly across from them in building B. the balloon weights 1 kg...
Monday, March 5, 2012 at 2:46pm

Chemistry
I wanted to calculate the average equivalent weight of an unknown acid for an acid-base titration experiment. The mass of the unknown that I had to obtain is 0.2 g and the equivalents of the acid is .001046 L x N. But is this equation right? Does the equivalent mass equal to ...
Monday, March 5, 2012 at 2:40pm

English
Writeacher, I need you to check these sentences to be transformed into the passive. (the last two examples don't belong to the same exercise). I'm also looking for a short reading comprehension to be included in a test designed for pre-intermediate EFL learners. The ...
Monday, March 5, 2012 at 2:11pm

Trigonometry
A side 2.8m long makes an angle of 25 degrees with the ground how high is the top of the slide above the ground .
Monday, March 5, 2012 at 1:06pm

Physics
A man with a mass of 60 kg skis down a frictionless hill that is h = 2.2 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal distance from the edge of...
Sunday, March 4, 2012 at 11:23pm

Physics--Newtons Second Law
A high diver of mass 60.0 kg steps off a board 10.0 m above the water and falls vertical to the water, starting from rest. If her downward motion is stopped 1.80 s after her feet first touch the water, what average upward force did the water exert on her?
Sunday, March 4, 2012 at 9:02pm

20
If you are overweight or obese, getting active can help you lower your risk of? A. Leukemia B. Stroke C. Alzheimer’s disease D. High self-esteem c
Sunday, March 4, 2012 at 8:19pm

physics
A diver with a mass of 70.0 kg stands motionless at the top of a 3.0 m high diving platform. Calculate his speed when he enters the pool. Thanks so much for helping!
Sunday, March 4, 2012 at 8:16pm

physics
A 0.125 kg cart rolls along a metal track with a kinetic energy of 0.25 J. How high up an inclined metal track will the cart roll?
Sunday, March 4, 2012 at 8:14pm

Hearne High
Find the exact value of each of the other 5 trigonometric functions for the angle of theta (without finding theta) when cos theta is 3/5
Sunday, March 4, 2012 at 3:24pm

Biology
my sister still be sick so i still helping her post questions. i write paragraph from her textbook that go with question. Ultimately, Darwin recognized in nature a process that operates in a manner similar to the way artifical selection worked on farms and in fields. Darwin ...
Sunday, March 4, 2012 at 12:20pm

Simon went to the store to buy new school supplies. Simon spent 1/4 of his money on pencils and paper and 1/2 of his money on a backpack. If Simon has \$12.50 leftover, how much did the backpack cost?
Sunday, March 4, 2012 at 11:29am

Physics
At the lowest point in its swing, a 2.5 kilogram pendulum bob has 40 Joules of kinetic energy. How high will its swing when it reaches the highest point in its swing?
Saturday, March 3, 2012 at 10:27pm

Physics
An unknown substance is found to require a very large amount of heat energy to raise its temperature a single degree. Does it have a high specific heat capacity or a samall specific capacity? Explain
Saturday, March 3, 2012 at 3:48pm

statistics
You and three (3) of your friends were in the same advance placement high school chemistry class in high school. All four (4) of you decided to take the same chemistry class together at the local university along with 21 other students. On the first day of class, the professor...
Saturday, March 3, 2012 at 3:29pm

math
a school has purchased a large field that has a square area of 19,500 ft squared. what is the approximate length of each side of the square area?
Saturday, March 3, 2012 at 2:01pm

Chemistry
In our lab we had to experiment with an apparatus in order to find such things as the percent of KClO_3 in the solution.. Assume that you heated your sample too rapidly and some of the sample spattered onto the rubber stopper of the test tube. Will your calculated percent ...
Saturday, March 3, 2012 at 12:50am

geometry
The Giant Ocean Tank in Boston's New England Aquarium is a cylinder that is 23 feet high and has a volume of 200,000 gallons, (1 gallon = 0.134 ft^3). Find the diameter of the tank.
Friday, March 2, 2012 at 10:24pm

English
I urgently need you to check this email, Writeacher. Many thanks. 1) I’m really glad you answered my email! My school will be very pleased to cooperate with your school in the future. 2) As I wrote in my previous email, our students are between fourteen and eighteen years...
Friday, March 2, 2012 at 6:36pm

physics
Two identical steel balls, each of mass 5.0 kg, are suspended from strings of length 29 cm so that they touch when in their equilibrium position. We pull one of the balls back until its string makes an angle θ = 25° with the vertical and let it go. It collides ...
Friday, March 2, 2012 at 1:12pm

trig and geometry
bernhardt and julia are observing an eagles nest in a tree. Julia is 75m from the tree, and sees it at an angle of elevation of 42 degrees A)How high up the tree is the nest B)Bernhardt is standing 30m behind julia. At what angle of elevation does he see the nest?
Friday, March 2, 2012 at 1:49am

math
the height, h, of a ball t seconds after it is released for a jump shot in a basketball game can be modeled with the equation h = −16t2 + 12t + 8. The rim of the basket is 10 feet high. Which of the following is the correct way to set up the problem to solve when the ...
Thursday, March 1, 2012 at 9:52pm

Greenspun middle school
you have 4 pennies, 2 nickels and 3 dimes in your pocket, if you radmonly choose 2 coins, what is the probabioity that both are dimes?
Thursday, March 1, 2012 at 8:06pm

English
What do you think about my essay? "A little bit longer and I will be fine" “..And you do not know what you got until it is gone, and you do not know what i s like to feel so low...” A quote written by Nick Jonas to express how he felt after being diagnosed ...
Thursday, March 1, 2012 at 7:27pm

when you read you can somethimes make a general statement, or generalization,about inividual ideas in the text. a generalization tells how ideas are mostly alike or all alike. directions read the following passage. people of all ages can play basketball young children join ...
Thursday, March 1, 2012 at 6:38pm

Math
Three students will represent your school at a conference at the state capitol. A drawing will be held to select the three representatives from a group of five finalists. If you and you friend are both finalists, what are the chances that both of your names will be drawn?
Thursday, March 1, 2012 at 6:20pm

English
Thank you very much, Writeacher. Could you please check these sentences I need to include in an email? Thank you. 1) I got the email address of your school on the the E-Twinning platform. I really hope your school is still interested in a school exchange programme with other ...
Thursday, March 1, 2012 at 4:38pm

trig
bernhardt and julia are observing an eagles nest in a tree. Julia is 75m from the tree, and sees it at an angle of elevation of 42 degrees A)How high up the tree is the nest B)Bernhardt is standing 30m behind julia. At what angle of elevation does he see the nest?
Thursday, March 1, 2012 at 4:05pm

Contract Law
1. Herb Appleseed had a contract with Abrams Stores to deliver one thousand boxes of candied fruit for a St. Valentine’s Day sale. He was the deliver the fruit by 1:00PM on Friday, the 4th of February. He drove up to the Abrams store at 1:00PM and found a note on the ...
Thursday, March 1, 2012 at 2:17pm

Calculus
Please help this is due tomorrow and I dont know how to Ive missed a lot of school sick Consider the curve given by the equation x^3+3xy^2+y^3=1 a.Find dy/dx b. Write an equation for the tangent line to the curve when x = 0. c. Write an equation for the normal line to the ...
Thursday, March 1, 2012 at 1:13pm

geometry
a school playground is in the shape of a rectangle 500 feet long and a 100 feet wide if fencing cost 15 dollars per yard what will the cost be to place fencing around the playground ?
Thursday, March 1, 2012 at 11:57am

physics
A man with a mass of 62 kg skis down a frictionless hill that is h = 3.3 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal distance from the edge of...
Thursday, March 1, 2012 at 11:25am

physics
A man with a mass of 62 kg skis down a frictionless hill that is h = 3.3 m high. At the bottom of the hill the terrain levels out. As the man reaches the horizontal section, he grabs a 20-kg backpack and skis off a 2.0-m-high ledge. At what horizontal distance from the edge of...
Thursday, March 1, 2012 at 11:20am

Word PROBLEM
if an animal is h high at the shoulder, the the number of steps per second that the animal takes while walking is estimated by N(h)=1.6^1/2...estimate the stepping frequency of a dog that is 1.9 feet high at the shoulders
Thursday, March 1, 2012 at 9:32am

math
In polk middle school, 45% of the students are 6th graders, 35% of the students are 7th graders and the remainder are 8th graders. Would a circle graph of this data that had 3 sections each with a central of 120% be misleading?
Wednesday, February 29, 2012 at 9:23pm

physics
a 70.o kg student runs up a 5.00 meter high stairway in a time of 5 seconds. how many watts of power did she develop?
Wednesday, February 29, 2012 at 7:38pm

physics
if 12,000 j of work is used to raise a large crate to a 4.1 m high shelf in a warehouse, then what was the weight of the crate of newtons?
Wednesday, February 29, 2012 at 7:36pm

graphic sources are sources of information such as maps charts illustractions,and captions. graphic sources help us understand information in a text,or they can provide information on their own. directions read the following chart. then answer the questions. michael jordan ...
Wednesday, February 29, 2012 at 6:16pm

English
Writeacher, here are my sentences on phrasal verbs I urgently need you to check. Thank you. 1) I can’t get around to thanking you for your hospitality.I’ll get back at you for being so rude to me. 2) When will you get around to clearing your room?He is a good writer ...
Wednesday, February 29, 2012 at 4:33pm

question
anyone who knows that the school of journalism in Indiana university is a good one? how about the major public relation in the school?
Wednesday, February 29, 2012 at 3:25pm

math
A trough is 11 feet long and has ends that are isosceles triangles that are 1 foot high and 2 feet wide. If the trough is being filled at a rate of 9 cubic feet per minute, how fast is the height of the water increaseing when the height is 7 inches?
Wednesday, February 29, 2012 at 3:13pm

Physics
A high-jumper clears the bar and has a downward velocity of -6.00 m/s just before landing on an air mattress. The mass of the high-jumper is 50.4 kg. What is the magnitude and direction of the impulse that the air mattress exerts on her? Assume that upward is the positive ...
Wednesday, February 29, 2012 at 2:55pm

English
Writeacher, I left out these sentences on the same topics. I included various possibities. Thank you. 1) Sorry, I’ve been out of touch. (Sorry, I haven’t been in touch is the same? How are things with you? Any good news? I’ve been busy with my mum recently since...
Wednesday, February 29, 2012 at 12:34pm

English
I urgently need you to check these sentences on the use of the present perfect. Thank you. 1) I’ve never messaged my friends in another country or posted a message on a message board.I have never missed meals because of the Internet and have never spent more than three ...
Wednesday, February 29, 2012 at 12:31pm

World History
Can't figure these two out: 35. Rivalry among various sections of a country- ? 38. Bombings and assassinations of high officials by political groups- ? Thanks -MC
Wednesday, February 29, 2012 at 12:17pm

Math
A scale drawing of a house is 15 cm high. If the drawing was built with a scale of 1 cm: 2.5ft, how high was the actual house
Wednesday, February 29, 2012 at 7:05am

Catering(Gourmet Essentials)
1. In the dining room brigade system, the positions of maitre d’hôtel and/or captain may be combined under the title of A. communard. C. chef de salle. B. boulanger. D. sommelier. 2. Rachel and Mark are discussing the requirements of a healthy diet. Rachel says that...
Wednesday, February 29, 2012 at 4:44am

Econnomics
Historically, officials from 23 northeastern colleges with selective admissions policies and high tuition met each spring to compare financial aid packages for more than 10,000 common applicants. The meetings, known as “Overlap”, were designed to eliminate any ...
Tuesday, February 28, 2012 at 11:24pm

math
James spent 62 % of high school budget on books. In degrees what measurement would that be on a circle graph? A. 62% B. 162% C. 177% D. 223%
Tuesday, February 28, 2012 at 10:49pm

i have two problems that i need to write an inequality for. a) One third of a number, decreased by thirty six, is at most twenty two. Find the number. b) A school's Spanish club is welling bumper stickers. They bought 100 for \$55, and have to give 15 cents for every ...
Tuesday, February 28, 2012 at 10:17pm

Math for the middle school and elementary teacher
3 red balls, 4 green balls, and 5 yellow balls are in a bag. If 2 balls are drawn randomly (without replacement) find the probability that the balls are different colors. I got 47/66 that the balls are different colors...is that right?
Tuesday, February 28, 2012 at 9:51pm

PHYSICS
A 7 kilogram bowling ball is dropped from a fourth story window. If each story is 3 meters high, use energy conservation (not the equations of motion) to find the ball's velocity when it strikes the ground. Ignore air resistance. 1/2 m v^2= mgh v= sqrt (2g*(3+.5)) V=sqrt(2...
Tuesday, February 28, 2012 at 9:14pm

math for the middle school and elementary teacher
Which one of the following situations a permutation? a) the number of ways 10 people can be lined up in a line for basketball tickets. b) The number of possible four member bowling teams from a family of six siblings. c) The number of ways to choose a committee of three from ...
Tuesday, February 28, 2012 at 8:58pm

Math for the middle school and elementary teacher
A prof. teaches 2 calc. classes. The first class has 25 students and their mean on the 1st test was an 82. The 2nd class has 15 students and their mean on the same test was a 74. What is the mean on this test if the prof. combines the score for both classes? Is the answer the ...
Tuesday, February 28, 2012 at 8:55pm

Math
Need some help on a word problem. It has a storage chest. The dimensions for the top of the chest are 28 in wide, 46 in long, and 1 in high. The bottom of the chest is 28 in wide, 46 in long, and 17 in high. The word problem is Cynthia packs the chest with sweater bags that ...
Tuesday, February 28, 2012 at 7:48pm

Chemistry
Indicate how each of the following would affect the value of the absorbance (too high, too low, or not effect) of the indicated solution. I really need help. I do not understand these questions! This is from a chemistry activity to determine the unknown concentration of an ...
Tuesday, February 28, 2012 at 6:55pm

math
in the formula d=rt the time t varies inversely with the rate r. a student running at 5 mph runs one lap around the school campus in 8 ninutes. if a second student takes 10 minutes to run one lap around the school campus, how fast is she running?
Tuesday, February 28, 2012 at 5:31pm

strayer
You and three (3) of your friends were in the same advance placement high school chemistry class in high school. All four (4) of you decided to take the same chemistry class together at the local university along with 21 other students. On the first day of class, the ...
Tuesday, February 28, 2012 at 4:39pm

physics
a person is sled-riding down a hill that is 15.0 ft high. starting at the top with a speed of 10.0 ft/s, the sled reaches the bottom with a speed of 25.0 ft/s. (A) determine whether mechanical energy has been conserved. (B) why might mechanical energy not be conserved?
Tuesday, February 28, 2012 at 3:34pm

English
Writeacher, I left out the following sentences. Can you please check them, too? 1) How are things? I'm sorry we haven't been in touch with each other recently. I've had a busy month. We've been on holiday, and we only got back last week. 2) I spent two weeks in...
Tuesday, February 28, 2012 at 2:57pm

physics
ursula and her 2 year old daughter unice descend a flight of stairs 10 m high, if ursula carries unice and their combined mass is 75 kg and reach the ground in 8 seconds. compute for a.) work done in going down b.) power developed by ursula in going down
Tuesday, February 28, 2012 at 8:36am

physics
jeritex mass is 60kg. if he climbs up the flight of stairs 13 meters high in 20 seconds, what is his power output?
Tuesday, February 28, 2012 at 8:33am

math
if 600 kids go to school and 240 walk to school what percentage walk to school ? show how to get the answer
Tuesday, February 28, 2012 at 8:05am

Ms Sue- Help me check
My parents always told me to brush my teeth morning and night, nevertheless it was not until high school that I actually realized why I did that. So let us presume my parents learned from their school and encouraged me, but if a villager living in a shanty town does not know ...
Monday, February 27, 2012 at 11:54pm

Inferential Statictics
Welsh, Davis, Burke, and Williams (2002) conducted a study to evaluate the effectiveness of a carbohydrate-electrolyte drink on sports performance and endurance. Experienced athletes were given either a carbohydrate-electrolyte drink or a placebo while they were tested on a ...
Monday, February 27, 2012 at 11:43pm

Essay Check
My parents always told me to brush my teeth morning and night, but it was not until high school that I actually realized why I did that. So imagine my parents learned from their school and encouraged me, but if a villager living in a shanty town does not know the importance of...
Monday, February 27, 2012 at 11:07pm

calculus
A trough is 10 feet long and 1 foot high. The vertical cross-section of the trough parallel to an end is shaped like the graph of y=x10 from x=−1 to x=1 . The trough is full of water. Find the amount of work in foot-pounds required to empty the trough by pumping the ...
Monday, February 27, 2012 at 11:01pm

physics
A 7 kilogram bowling ball is dropped from a fourth story window. If each story is 3 meters high, use energy conservation (not the equations of motion) to find the ball's velocity when it strikes the ground. Ignore air resistance. 1/2 m v^2= mgh v= sqrt (2g*(3+.5)) V=sqrt(2...
Monday, February 27, 2012 at 10:03pm

Math. Proportions
Can u check these. ? What percent of 230 is 23? I got : 28.75% is this. Right? 80% of what number is 15? I got : 18.75% is that right? Word problem A school holds classes from 8a to 2p For what percent of a 24hr day does this School hold class? I got 25% BasedEd on the census ...
Monday, February 27, 2012 at 9:45pm

Math
The largest tree in the world is the General Sherman sequoia in Sequoia National Park, California. It is 275 feet high, has a diameter of 36.5 feet, and has an estimated weight of 2,150 tons. Fin the sequoia's circumference to the nearest tenth of a foot. Use 3.14
Monday, February 27, 2012 at 8:51pm

math
If there are 32 students and 5/8 walk to school . How many walk to school. HOw is this problem worked out
Monday, February 27, 2012 at 7:16pm

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