High School

Physics
Bats chirp at high frequencies that humans cannot hear. They use the echoes to detect small objects, such as insects, as small as one wavelength. If a bat emits a chirp at a frequency of 60.0 kHz and the speed of sound waves in air is 340 m/s, whar is the size in millimeters ...

math
it cost 660 dollars to put on the school play. how many tickets must be sold at 6 dollars piece in order to make a profit?

math
it cost 660 to put on the school play. how many tickets must be sold at 6 piece in order to make a profit?

jkr school , physics
a stone drops from the edge of a roof. it passes a window 2 mtr high in 0.01 sec . how far is the roof above the top of the window?

science
An object 2cm high is placed 20cm in the front of convex mirror of focal length of 10cm.So,that it is perpendicular to the principal axis.Find the poition and the size of the image.

music
choose the word painting format that would go best with the following lyrical line, "The higher I go, the more power i'll have." crescendo with ascending pitches forte with descending pitches allegro with crescendos and decrescendos pianissimo with high pitches Can someone ...

math
A rectangular water tank is5m.high 3m.long and 2m. Wide.how many meters of water can it hold ?

Math
A rubber ball is dropped from the top of a building, which is 40 ft. above the ground. Each time the ball hits the sidewalk, it rebounds 77% of its previous height. How high will the ball rebound after its sixth bounce? Round your answer to the nearest 10th. 8.3 ft. 10.5 ft. ...

English
I'm unsure how to scan these stanzas and mark the accented (/) and unaccented (u) syllables. Could someone help by copying and pasting the stanzas in their reply and marking the syllables above their lines. These stanzas are from different poems. Any help would be greatly ...

Physics?
Which of the following is a possible application of a centrifuge? (More than one answer may be correct.) Test astronaut’s tolerance for high accelerations Produce even mixtures of particles of different densities Separate human blood cells Speed sedimentation of dirt ...

Lauguge arts
IM from connexus and I'm reading a novel called The Cay if anyone knows what I'm talking about please help me out with this question. 1.Which of the following passages from the novel best describes the setting? A. I was not frightened, just terribly excited. B. The fort looks ...

Does Connections or any other school know about
Does connections or any other school know about this website???

Chem
At room temperature and pressure RbI crystallizes with the NaCl-type structure. (a) Use ionic radii to predict the length of the cubic unit cell edge. (b) Use this value to estimate the density. (c) At high pressure the structure transforms to one with a CsCl-type structure. (...

AP Human
How did population distribution and density affect the damage caused by the Red River floods of 2009 and 2010 A) hundreds of thousands died B) loss of life was limited C) casualties were very high*** D) it played no role

Phyics
A boy whose mass is 40kg runs up a flight of 30 steps,each 150mm high,in 6secs.find the average power developed.(take g=10m/s^2.

AP Statistics
I was sick and when I came back to school I received this question as homework and I don't understand it... Jenny is a 60 percent free-throw shooter She gets to shoot a second free throw if and only if she makes her first shot. She can score 0 points( if she misses her first ...

Social Studies
1.For what reason are Serhiy and his friends most likely to leave there village after High School? A.They cannot afford to afford to continue their education B.They are forced to join the military after they graduate from High School C.They want to look for work and other new ...

Social Studies MS. SUE
The monumental cities of the Incas demonstrated their: A intensive trade networks, B High levels of organization, C interest in astronomy, Or D dependence on farming.

Literature
I am doing a collage about Fahrenheit 451 and basically we have to make a collage with chunks of writing about quotes that relates back to our proposal. Would It be okay if someone looked at it? Proposal: I am interested in how the government doesn’t want people  in the ...

Math
Use synthetic division to find the zeroes of the function f(x) = x^3 + x^2 +4x+4 Need help on this we have a test when i go back to school please help this was an example given and i dont understand it.

English
What is a thesis? And how do I write one? Select a topic for an argumentative essay and write a thesis (claim) statement. I already have my topic *Are school uniforms a bad idea?*

math
write an inequality to model the situation the number n of people who ate hot lunch as school was at most 107

English
High school students are still reading A Separate Peace more than forty years after its publication. Compose an essay describing what you think the book's enduring relevance is. What do the characters and the conflict say to people today? Do you imagine the book will retain ...

Algebra
How high is a tree that casts a 22 from shadow at the same time that a 4 ft fence post casts a 4 ft shadow the trees height is

math
Four members of a school first eleven football team are also members of the first fourteen rugby team. How many boys play for at least one of the two teams

algebra
A school fair ticket costs $8 per adult and $1 per child. On a certain day, the total number of adults (a) and children (c) who went to the fair was 30, and the total money collected was $100. Which of the following options represents the number of children and the number of ...

Math
While walking from her house to school, Miriam walks at a pace of 5 km/h. When she walks in the hallways at school, she slows down to 3 ½ km/h. If she spent 2 ½ hours walking to and from school and ¾ of an hour walking in the hallways, what was her average walking speed?

Math
Jake sold 39 tickets to the school fair, and Jeanne sold 12 tickets. What is the ratio, in simplest form, of the number of tickets Jeanne sold to the number of tickets Jake sold? A. 13/4 B. 39/12 C. 12/39* D. 4.13 Is it C?

English
Hi,i'm an ESL student right now in High School,so i got stuck in writing sentence in present and past tense,i want to say this "After a long research for a perfect profession,I have chosen of *becoming or being (which one do i use ?)* accountant.

math
The books for Mathematics, Geography and Science in a school are in the ratio 5:7:8. There is a proposal to increase these books by 40%, 50% and 75% respectively. What will be the ratio of the increased books? #Please anyone who can help me out with the clearly solution#

physics
an arrow is shot at a 30 degree angle with the horizontal. it has a velocity of 49 m/s how high will the arrow go? what horizontal distance will the arrow travel? and how long will the arrow be in the air?

Social Studies
Alexander Hamilton favored a strong federal government because he believed it would benefit the economy. As a result of this belief, he also supported-- A. the abolishment of all tariffs B. the establishment of a national bank C. Increasing the agricultural activitiy D. ...

Art
1. This drawing was made using what natural resource? A. Clay B. Wax based colored pencils c. graphite pencils* d. watercolors. Heres the link so you can see the image: (put a com after the dot) //imgur./a/dQ7OZ 2. The clay for pottery is usually acquired by A. Harvesting the ...

Language
While television can be entertaining and educational, it also has a dark side, especially for children. On average children spend nearly 4 hours a day watching television. The harmful effects of television viewing far outweigh any benefits. Doing poorly in schools is one ...

Pre-Algebra
1. Write the fraction 8/9 as a percent. Round to the nearest hundredth of a percent where necessary. A. 88.89% B. 1.13% C. 44.44% D. 66.67% 2. Write 0.063 as a percent. A. 0.63% B. 6.3% C. 63% D. 630% 3. A study in your town found that 54 in 1,762 people have a post office box...

Accounting
Fender Company had the following data for four months. Total Cost Production Units January $50,000 1,000 February$53,750 1,150 March $61,250 1,450 April $65,250 1,610 Use the “high-low” method to calculate the estimated variable cost per unit. A. $25 per unit B. $44.19 per...

Language
Let me introduce Javier Solas, who is running for president of the student council. As than Liu, last year's president, said " I can't imagine voting for anyone but Javier. He's clearly the best-qualified candidate. Nearly every other member of last year's student council has ...

chemistry
Iodide and diamond crystals both contain covalent bonds and yet the physical properties of their crystals are very different. Their melting points are 387K and 3827K respectively. State this type of structure present in each case and explain why the melting point of diamond is...

chemistry
Do you think that there is a high correlation between proficiency in mathematics and proficiency in chemistry? Explain why or why not. Use details about the components of each field to support your answer.

math
A middle school is made up of grades 6, 7, and 8, and has about the same number of male and female students in each grade. Explain how to use a simulation to find the experimental probability that the first 50 students who arrive at school are male and 7th graders.

Math please help !!!!!!
How many blocks 1 inch on each edge would it take to fill a shoe box that is 12 inches long , 6inches wide , and 5 inches high ?

Chemistry
A student breaks a thermometer and spills most of the mercury (Hg) onto the floor of the laboratory that measure 15.2 m long, 6.6 m wide and 2.4 m high. a) (1 mark) Calculate the volume of the room in m3 and L. b) (2 marks) If the vapour pressure of mercury at 293.15 K is 1.7...

just writing
So, this isn't for school or anything- but I want to know if just by this first page if you would read this book. It's got facts about history and helping you plan for the future. Let me know what you think! Written on the Wall Life is rarely fair. That’s why people work ...

Culutral Anthro
I left my book at school and now trying to search everywhere to find some of these answers. I've complete more than half of my questions but have 4 that I cant figure out to include this one: Which of the following is NOT valid? 1 Outside forces have lead to the extinction of ...

English comp
I need suggestions on how I could rephrase these without being repetitive and that the point comes across. Thank you (: 1. Alcohol is a dangerous recreational substance that many Americans very much abuse to what their body could take. 2. The reason why people start consuming ...

Middle school digital art and design questions
So, I need to check these, thx guys!!! When a artist receives royalty It Is A fee for the use of the art*** The right to create your own art Permission to use someone else's art The cost associated with making a product I think A, But that may be wrong, Idk For literature, a ...

algebra
Here are yesterday's high temperatures (in Fahrenheit) in 13 U.S. cities. 50 , 56 , 56 , 58 , 60 , 61 , 63 , 66 , 67 , 71 , 71 , 80 , 83 Notice that the temperatures are ordered from least to greatest. Give the five-number summary and the interquartile range for the data set.

Math-Middle School NO FRACTIONS OR DECIMALS PLEASE
A collector has 120 movie posters and 80 band posters. She wants to sell 24 movie posters but still have her poster collection maintain the same ratio of 120:80. If she sells 24 movie posters, how many band posters should she sell? Complete the explanation to find out how many...

math
a hang glider flying in the air is 56 meter from an observation point on the ground. if it is 50 meter along level ground from the observation to a point directly under the glider, how high is the glider?

Physics
Dahnay Travels On A Bus To School.He Gets On The Onthe Bus Which Then Accelerates From Rest To 18m/s In 20secnds.The Bus Travelr At This Velocity For 60seconds.Tge Bus Slows Down And Comesto Rest In 15seconds.Itis Stationary For 30seconds While People Get Onthe Bus.The Bus ...

Math
A school has bought 20 desks and 4o chairs at a total cost of 2400. The cost of one desk was equal to the cost of three chairs. How much did a desk and a chair cost respectively?

Sociology
Please check my answers. 1. Population growth is an issue because A. sociologists cannot track all the social groups that arise. B. infrastructure within cities is insufficient. C. it goes hand in hand with lowered life expectancy. D. natural resources are limited.* 2. Renee ...

English
What tone does Henry Gilbert create in lines 8-11 of the excerpt of King Arthur’s Knights? horror and alarm excitement and anticipation peace and joy resignation and defeat C? Text Then, when the queen came unto King Arthur, there was great feasting and joustings and merry ...

Physics
A 58.7-kg lead ball is dropped from the Leaning Tower of Pisa. The tower is 55.0 m high. A) How far does the ball fall in the first 3.08 seconds of flight? = 46.5 m B) What is the speed of the ball after it has traveled 2.10 m downward? = 6.42 m/s C) What is the speed of the ...

English
Identify the sentence with a verb usage error. (A) Everyone on the baseball team has drank all of the water bottles by the end of the game. (B)That is the silliest thing I have ever seen. (C)Their school choir had sung with gusto for each competition. (D)He did not know his ...

Physics
In an aviation test lab, pilots are subjected to vertical oscillations on a shaking rig to see how well they can recognize objects in times of severe airplane vibration. The frequency can be varied from 0.0240 to 39.1 Hz and the amplitude can be set as high as 1.87 m for low ...

Math
Maria plots the locations of 4 places on a coordinate grid as given below Her house is at (−4, 9). Her school is at (−4, 3). The community center is at (1, 3). The grocery store is at (−4, −8). Part A: Use absolute values to calculate the distance in units from Maria's...

Keyboarding and Applications
You are researching the Holocaust for a school paper and have located several Web sites for information. In three to five sentences, describe the method you would use to determine whether each Web site is a suitable source of information for your paper.

SS helppp
The World Bank is an organization that strives to reduce poverty, especially in "Third World," or developing, nations. Which continent has the greatest need for assistance from the World Bank due to drought, political corruption and instability, and a high rate of HIV/AIDS? A...

character education
Why should you consider your society's hierarchy of values when ranking your own? conformity should always be a high value society is always right about their values the cost of violating a societal value often outweighs its benefits C? Who acts according to his or her code of...

MAth
A high school purchases a printing machine that can put lettering on clothing for $6000. The school plans to print T-shirts with the school logo and sell them. Each T-shirt costs the school $4 and will sell for 412. hOW MANY t-SHIRTS MUST THE SCHOOL SELL BEFORE BREAKING EVEN? ...

Physics
In an aviation test lab, pilots are subjected to vertical oscillations on a shaking rig to see how well they can recognize objects in times of severe airplane vibration. The frequency can be varied from 0.0240 to 39.1 Hz and the amplitude can be set as high as 1.87 m for low ...

pleaseee im begging you
connections 7th graders unit 7 lesson 11 7th grade math help hello my grandmother is in the hospital suffering from leukemia and my mom is really out of it right now and my dad works a lot so the house is a mess right now my mom gets better for a moment when she sees I got ...

Physics
In an aviation test lab, pilots are subjected to vertical oscillations on a shaking rig to see how well they can recognize objects in times of severe airplane vibration. The frequency can be varied from 0.0190 to 38.3 Hz and the amplitude can be set as high as 2.08 m for low ...

Science
A hormone is under negative feedback regulation. This hormone stimulates water retention by the body. Which of the following will happen if water levels in the body get too high? 1) hormone levels will increase 2) hormone levels will decrease 3) antibodies will form 4) the ...

MATH HELP ME PLZZ
The school library has 2,469 books. Two-thirds of the books are paperbacks. How many books are paperbacks? HELP I don't understand any of this!!

physics
a block of stone has a density of 2.75 g/cm3. the block has a mass of 3.30 kg. it measures 6.00 cm wide by 8.00 cm high by L cm long. if i found L to be 68.6927cm by doing m=D*V, is that right? Also if it was in fresh water (density=1000kg/cm^3), would the buoyant force be 32,...

Sociology
A rational-legal authority figure would most likely be someone like a A. war chief B. principle of a school C. religious leader D. parent My guess is A

Math
A school wants to build a fence to enclose a rectangular 4-sided playground of 144m^2. What is the min cost for a fence if it costs $5.70 per meter of fencing? 2. The principal checks the budget an sees that only $228 is available for the purchase of fencing. What s the ...

Probability and Statistics
A high school baseball player has a 0.193 batting average. In one game, he gets 7 at bats. What is the probability he will get at least 2 hits in the game?

character education
Which of the following school issues is a moral issue? plagiarism or cheating on exams not doing required work the certification of teachers A? Why are laws created? to sanction desired behavior to define the highest standard of morality expected by a society to educate the ...

physics
a block of stone has a density of 2.75 g/cm3. the block has a mass of 3.30 kg. it measures 6.00 cm wide by 8.00 cm high by L cm long. how do i find L? if the block was in water with density of 1000kg/cm3 what would the buoyant force on the block be? anything helps!! thank u

5th grade LA
Can you check the following? Past Perfect Tense 1. My teacher __ us three chapters, but I only finished one of them. (assign) answer:had assigned 2. Before their fossils __, we knew nothing about dinosaurs. (discover) answer:had been discovered 3. The team celebrated because ...

Language arts
7 .Which of the following is an important detail in the selection 1 The Park Road leads to Gila National Forest. 2 When sand and other forces school did the rocks. 3 The Rocks were created when volcanoes erupted. 4 The rocks are amazing colomns of stone.

Phychology CHECK my answers
My answers have the star 1. The nervous system is the body’s ______________ network. (1 point) communication*** organization reactive production 2. The central nervous system (CNS) consists of the brain and the ___________. (1 point) heart neural network skeletal system ...

Literature
I need to write a literature review using the following Research Question: How does one's self attitude/worth play a role in deviant behavior? The following is my outline. I am having two problems. The articles are so complex that I am having difficulty understanding them. ...

Science
before you say "The answers are in your text" I don't have one this is based on memory and guessing. Welcome to the 2017 school system. 1. Objects with like charges ___________ each other while opposite charges ______________ each other. 2. The direction of an electric field ...

Algebra I
The vertical drop of a roller coaster is the largest difference in height between any high point and the next low point. The vertical drops of five roller coasters at Mandelbrot Amusement Park are shown in the table. The Parabola - 165 feet The G Force - 119 feet The Mean ...

geometry
How high is a tree that casts a 34ft shadow at the same time a 7 ft pole cast a shadow which is 9ft long. What is the tree's hight

ELA
Which sentence includes an infinitive used as a direct object? A) As a new faculty member, Susan wanted to succeed. B) To win requires an enormous effort from our team. C) Golnesa’s career goal, to write, was never quite met. D) The principal of the school is the individual...

Algebra I
The vertical drop of a roller coaster is the largest difference in height between any high point and the next low point. The vertical drops of five roller coasters at Mandelbrot Amusement Park are shown in the table. The Parabola - 165 feet The G Force - 119 feet The Mean ...

math
School started at 8:05 a.m. and ended at 2:40 p.m. The work below shows Erica’s calculation of the length of the school day. Which two errors did Erica make? 1.She subtracted instead of adding the times. 2.She subtracted the end time from the start time. 3.She did not ...

ELA
Which sentence uses an infinitive as an adverb? A) My favorite board game to play is stored in the basement. B) Nicole wants to learn the art of rhetoric before next year. C) Dave's favorite thing to do is to walk his dog every evening. D) We met after school to study for the...

physics
Draw a speed v against time graph by guessing of the values of your trip to school this morning. show how this graph can be used to determine distance

physics
Draw a speed v against time graph by guessing of the values of your trip to school this morning. show how this graph can be used to determine distance

Math
Mark leaves the house for school walking at the rate of 4 km. per hour. Two hours later Kris follows Mark at a walking rate of 6 km. per hour. How long will Kris have to walk to overtake Mark?

Physics
You hear the sonic boom of a high-speed jet plane exactly 3.10 s after it passes directly overhead in level flight. At the time you hear the boom, you see the plane at an angle of 22.0 o above the horizon. Assume that the speed of sound at the altitude of the plane is 325 m/s...

Physics
Can anyone explain this? If the particles in the upper atmosphere have a very high temperature (when using the definition that relates temperature to kinetic energy), why would the measured temperature be very low?

Algebra
John is planning to build an arched trellis for the entrance to his botanical garden. The arch is to be in the shape of the upper half of an ellipse that is 4 feet wide at the base and 7 feet high. Find the equation for the ellipse when a rectangular coordinate system is ...

physical
Hi! I really need help! have plans this weekend and they start today but I have to do this and soon! What is the best definition of friendship? 1:A LONG-TERM CONNECTION WITH ANOTHER PERSON. 2:A SPECIAL RELATIONSHIP BETWEEN PEOPLE WHO ENJOY BEING TOGETHER. 3:A SPECIAL ...

math
Hi y’all, me again. Can you help me on this? I got some answers, and I hope they are all right. Please let me know! Thanks! :) 1.2(y + 1) for y = 2 A. 6 B. 5 C. 7 D. 8 Is it “A”? 2. The cost in dollars of a school banquet is 74 + 12n, where n is the number of people ...

math
1.2(y + 1) for y = 2 A. 6 B. 5 C. 7 D. 8 Is it “A”? 2. The cost in dollars of a school banquet is 74 + 12n, where n is the number of people attending. What is the cost for 52 people? A. $550 B. $698 C. $624 D. $138 Is it “B”? 3. Write a word phrase for p / 3. A. a ...

social studys
Hi! please help me!!!!!!!!!!!!! I have a quiz due today my grandma was in the hospital and I couldn't do school! I promise on my life that that is the case....here is the question : WHY DID BUDDHISM BECOME POPULAR IN INDIA?: its 28 percent of my grade plz help!

algebra
Hi I'm having trouble with this question I don't understand it at all. This is the question: Suppose y varies directly with x, and y = 15 and x = 5. Write a direct variation equation that relates x and y. What is the value of y when x = 9? If somebody could help me & let me ...

MATH HELP ASAP
Levi earns $6.25 per hour working after school. He needs at least $143.75 for a stereo System how many hours h does he need to work to reach his goal? A) h/ 6.25 > 143.75;h> 23;23hours*** B) 6.25h(<underlined)143.75;h (< underlined) 23;23hours C)h/6.25< 143.75;h...

math
In which sentence does the author make an appeal to emotion. A. shouldn't that determination be rewarded B. not only that but Javier is an egale scout and editor in chief of the school newpaper. (this one) C as than liu last years president said I cant imagine voting for ...

math
In which sentence does the author make an appeal to authority. A. vote for Javier! ( this one) B. now he speaks English fluently C as than liu last years president said I cant imagine voting for anyone but Javier. D. not only that but Javier is an egale scout and editor in ...

Algebra
While going for my daily run, I passed a squirrel carrying a nut in her mouth. When she saw me, she ran towards a safe place and, coming to a stone wall, easily jumped up on it and disappeared. I began to wonder how high I could jump if I were a squirrel. If an average ...

History
Hello please help me, if you go to connections academy plsssss tell me the answers to history unit 4 lesson 15 test, I will get sent to boarding school if I fail this test :( PLSSSSS HEEEEELLLLPPP MEEEEEEEE!!!!!!!!!!!!!!!!!!!!!!!

Social Studies
What did Alexis de Tocqueville observe on his visit to the United States that reflected changes that were happening in the country during Jackson's administration? (1 point) a strict divide between rich and poor a growing spirit of democracy and equality between classes a ...

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