High School

chemistry
Calcium is determined gravimetrically by precipitating it as CaC2O4â‹… H2O, followed by isolating the precipitate as CaCO3. The sample to be analyzed is dissolved in 10 mL of water and 15 mL of 6 M HCl. After dissolution, the resulting solution is heated 24 to boiling, ...

pgcc
Two identical steel balls, each of mass 4.40 kg, are suspended from strings of length 25.0 cm so that they touch when in their equilibrium position. We pull one of the balls back until its string makes an angle θ = 70.0◦ with the vertical and let it go. It collides ...

Maths
A school spends a quator of it's money on books and a third on salaries. If the school spends a fifth of the remainder on transport, the remainig amount was sh.40,000. How much money did the school have at first?

SAT
What is the best study plan for SAT option? (like should i do Kaplan, C2, Testmasters, self study, private tutor...etc) I want to get a high score on my SAT since i am considering competitive colleges. Also I will most likely be sitting down for the SAT early next year in Jan ...

Ashford
In hiring officials it is considered best to: A. Pay a salary plus expenses rather than a flat fee B.Have officials selected with the approval of the opponents C.Use local officials D.Have officials chosen strictly by the home team. A and C Which of the following is not ...

Ashford
In hiring officials it is considered best to: A. Pay a salary plus expenses rather than a flat fee B.Have officials selected with the approval of the opponents C.Use local officials D.Have officials chosen strictly by the home team. A and C Which of the following is not ...

Physics
An object 5cm high is placed at a distance 60cm in front of a concave mirror of focallength 10cm.find the position and size of the image by drawing.

Math
The music teacher would like to have the same number of girls and of boys in the chorus. She finds that 5/8 of the chorus are girls but that if she can get 10 more boys, the chorus will have the same number of boys as of girls. (a) How many students are in the chorus? (b) If ...

American gov
But freedom to differ is not limited to things that do not matter much. That would be a mere shadow of freedom. The test of its substance is the right to differ as to things that touch the heart of the existing order. . . . If there is any fixed star in our constitutional ...

American gov
Check my answers pleaseee i have a star * by my answer 4. Rights are not absolute. Which of the following examples would support this statement? Select all that apply. (3 points) ( this one has 3 answers) A citizen criticizes public policy. A man yells “Bomb!” at an ...

Fractions
Mother saved 7/8 of a pie for dinner. Her son came home from school and ate the pie. How much pie is now left for dinner

Math
Now I really need help with this one because every time I think it is one answer it ends up wrong. Identify the question that is NOT statistical. A) According to the rules, how many swimmers are on a team? B) What were the times of the top five swimmers in the competition? C...

Physics
a boy whose weight is 600 N runs up a flight of stairs 10 m high in 12 second .What is his average power?

Punakha central school. Bhutan
Dissociation constand of propanoic acid is 1.76. Determine degree of dissociation of P ropanoic acid in 0.2molar in aqueous solution?

Math
a school bus has 1000 students. on wednesday, 300 students went on a field trip. what percent the students did not go on the field trip.

english
If you are very good with people, you have a high level of __________ intelligence.

Math
A school has 1200 pupils of 3/4 of the pupils travel to school by bus how many of the pupils travel to school by bus

6 grade math
Middle School Mathematics How can I write a question In words that could be answered using expression for each and a diagram. 3/4 ÷ 1/2 and vise versa 1/2 ÷ 3/4 OK so I found a sample but I just can't think how would I write it out for my problems.

Math
2. A survey about the student government program at a school finds the following results: 190 students like the program, 135 students think the program is unnecessary, and 220 students plan on running for student government next year. If a circle graph were made of this data, ...

College
I have a genuine question.. I have taken 3 years of Spanish in high school, but when I go into college, do I need to take another language class for my prerequisite, or do I not have to take any more language classes?

Algebra 1
A high school club has a performance, with 800 tickets to sell. Tickets are $6 before the day of the show, and $9 on the day of the show. They must sell $5000 in tickets. How do I write a system of inequalities to represent the equation?

Physics
Hello so my question is an 85kg kangaroo acquires 2.2kJ of energy in jumping straight up and down from rest. How high does the kangaroo jump? My solution: When he's at rest Eg=2200J but in air Eg=0 Eg=mhh 2200=85(9.8)h 2.64m=h Looking at it now it doesn't really make sense ...

math
the low tempuerture was 35 f. This was 13 f lowewr than the daytime high temputure.Write an equation to determin whete the high temperature was 48 f or 42 f

Grade 4 Math - fractions
On pet day, 18 children brought a pet to school. Two-thirds of the pets were dogs. One ninth of the pets were cats. How many were dogs? How many were cats? How many animals were neither dogs nor cats?

chem 111
state fist ionization energy of calcium high than pottatium

Physics
A half pipe can be thought of as half of a cylinder with radius of 7.00m. If a skater with mass 75.0 kg, starts with an initial velocity of 5.00 m/s at the top of the ramp, (a), what is his velocity at the very bottom of the ramp? The skater then approaches the other quarter ...

CHECK THIS LANGUE ARTS THING AS FAST AS YOU CAN!
1. What purpose for reading do the stage directions suggest to readers? (1 point) • to learn about a subject • to be inspired • to be entertained • to gain understanding*** A Surprising Point of View A Television Play in Two Acts Characters (in order of appearance) 1 ...

math
The box and whisker plot below shows the numbers of text messages received in one day by students in the seventh and eighth grades at Lincoln Middle School.

statistics
41% of the student body at Urban High are "cool". Mr. Uppity has devised a test for determining if a student is "cool" or not. What is the average number of students Mr. Uppity needs to test in order to find one who is "cool"? a. 3 b. 3.57 c. 2.43 d. 1.44 e. 2

Math
A girl starts to walk to her school, which is 20 miles away, at 6:50 and at a rate of 3 miles per hour. After a while, her dad picks her up and drives her through the remainder of the way at 30 miles per hour. If they arrived at school at 9:00, how far did she walk?

Ruwaydah
This is my hw, however i do not know to put these quotations in my sentences can someone help me? and please do not copy this!I repeat I have recently read Liane Beam Wansbrough’s article on the topic of cosmetic plastic surgery, and I am writing to express my viewpoint and ...

Math
All 500 students at Robinson Junior High were surveyed to find their favorite sport. How many more students played football than basketball? Soccer has 10% Basketball has 27% Baseball has 25% Football has 38% A.325 students B. 135 students C. 190 students D. 55 students Im ...

Math
Byron’s house has a roof with dimensions shown. (Roof: 1m Height, 7m Hypotenuses, 12m length) He knows that the average rainfall in his suburb is 30cm per year. Byron would like to install a cylindrical rainwater tank to hold the water that runs off the roof. The tank is to ...

Math
A 25 ft. Ladder is placed 8 ft. From the base of the house. How high up the side of the house can the ladder reach?

Chemistry
Of the compounds below,_____ has the smallest ionic separation and why? A.RbF B.K2S C.SrBr2 D.KF E.RbCl --> How does one determine if a compound has a high or low ionic separation, and what is ionic separation?

Chemistry
Of the compounds below,_____ has the smallest ionic separation and why? A.RbF B.K2S C.SrBr2 D.KF E.RbCl --> How does one determine if a compound has a high or low ionic separation, and what is ionic separation?

English
1. Are you happy with your school uniform? 2. Are you satisfied with your school uniform? 3. Are you happy related to your school uniform? 4. Are you happy because of your school uniform? -------------------------- Does #1 mean #2? What about the other sentences? The meaning ...

statistics
A school club consists of 22 male students and 15 female students. If 3 students are selected to represent the club in the student government, what is the probability 2 will be male and 1 will be female?

Math
4.In the town of sleepy oak the fine for a speeding ticket is $32.65 + s dollars, where s is the miles per hour over the speed limit. A. What is the fine for going 38.4 miles per hour o=in a 25-miles-per-hour school zone? B. Mr.Taylor was fined $50.15 for speeding speeding in ...

Designing Specialty Areas
Which of the following statements about the involvement of fathers is true? A. Fathers parent in a way that's different but complementary to mothers. B. With the emphasis on father involvement in early childhood programs, father involvement is now nearly equal to mothers' ...

science
A ball is projected vertucally upward from ground with avelocity of 20m/s .How high willit go.a 5m b10m c15m d20m e25m correct options of this question.

science
A ball is projected vertucally upward from ground with avelocity of 20m/s .How high willit go.a 5m b10m c15m d20m e25m correct options of this question.

Math - Trigonometry
Standing on top of a building 42 m high, an observer sights two objects at P and Q on opposite sides of the building. The angles of depression from the observer to P and Q are 23° 18' and 35° 33' respectively. What is the distance between P and Q to the nearest m? Again, ...

Mink high school MatheMatics
Peter deposit k180600 with bsp which offers 6 1/4%per annum interest. Calculate the interest earned After 6years if it is compounded:

Physics
Physics lab need help with sources of error. In our lab, we had to use carbon tape and a spark timer to find out the maximum velocity and maximum acceleration of a high school student. I'm having a hard time to find sources of errors. Any ideas or insights would be really ...

Connections Academy
Sooo this isn't really a question about something in school or anything, but I was wondering, how many Connections Academy student really go on here ( Whether its to cheat or not [We don" cheat shame here] )

6th grade math
Am aquarium in the shape of a right rectangle prism is 12.5 inches long,6 inches wide and 8 inches high is the total amount of water needed, to the nearest cubic inch, to fill 90% of the aquarium with water

English
1. His salary is the same as mine. 2. Middle school is not the same as elementary school. (What is the part of speech of 'as' in each sentence?)

English
(1) I get a kick out of creating model airplanes. (2) I've been making them since I was knee-high to a grasshopper. (3) My grandfather used to fly bush planes in the Outback. (4) He would tell me stories and say that he and I were two peas in a pod. Which sentence in the ...

Calculus
A bowl is created with circular cross sections so that its radius (in cm) is a function of height (in cm) according to the equation r=4sqrt(h+1). Find the volume of soup that fills the bowl if the bow is 2 cm high.

math
Amy leaves home at the same time every morning and gets to school exactly at 8 AM. If she traveled at 70 meters per minute she would arrive 10 minutes early. If she traveled at 60 meters per minute she would arrive 8 minutes early. What time does Amy leave home each morning?

math
John let out 50 foot of kite string when he observes that his kite is directly above a point on the ground 30 feet away from him, how high is the kite ?

World History
Which of the following was an effect of Allied defeats and high casualty rates on the Eastern Front? A. Russia entered the war on the Allied side B. Russia experienced a revolution and dropped out of the war. C. The United States issued the Four Points. D. The United States ...

math
Dench manufacturing has received a special order from Sands to produce 225 components to be incorporated into Sand's product. The components have a high cost, due to the expertise required for their manufacture. Dench produces the components in batches of 15, and as the ones ...

Mathematics
If the radii of the circular ends of a conical bucket,which is 45cm high,are 28cm and 7cm.Find the capacity of the bucket?

Software Engineering
Create an automatic question paper generator system in JAVA which involves Artificial Intelligence with the following requirements:  The system should generate a test paper automatically based on the difficulty level. For this create a fake data for 25 questions and collect...

Creating High-Quality Centers
The reading center needs to represent a variety of cultures. Which of the following teachers' responses reflects the philosophy found in your textbook? A. "I choose books that represent the cultures that are in my community. We live in a community with many American Indians, ...

Creating High-Quality Centers
Which of the following statements accurately reflects what we know about facilitating science learning for infants and toddlers? A. It's important to have a science circle each week where the teacher demonstrates a science concept to the infants and toddlers. B. Infant and ...

Creating High-Quality Centers
The reading area needs to be well-stocked with quality books. A well-stocked reading area should contain which of the following? A. Three to four books per child in the classroom B. Ten books per child in the classroom C. Five to eight books per child in the classroom D. One ...

Creating High-Quality Centers
Which of the following teachers is using the computer most effectively? A. "I use the computer to manipulate figures and place the actual hands-on manipulatives nearby." B. "I use the computer so that children can manipulate geometric figures." C. "I believe that my preschool ...

Creating High-Quality Centers
Which of the following would assist toddlers to learn one-to-one correspondence? A. Number cards to trace B. Pegs and pegboards C. Play dough to create letters D. Old calculators My answer is b.

Creating High-Quality Centers
The sensory center can help children develop skills and knowledge in which of the following domains? A. Physical and social B. Physical only C. Physical, social, emotional, and cognitive D. Physical, social, and cognitive my answer is c.

Creating High-Quality Centers
To enhance children's creativity, it's best to do which of the following? A. Teach children techniques and the proper use of tools as they're developmentally ready B. Teach children the correct way to draw an item such as a person C. Use a hands-off approach to children's art ...

Creating High-Quality Centers
Which of the following teachers is providing the children in the classroom the needed opportunity to develop skills through block building? A. "I have a small classroom so I rotate the block and dramatic play center since children develop the same skills in both centers." B. "...

Creating High-Quality Centers
Superhero and war play concern many teachers. These teachers describe how they manage this type of play. Which is most effective? A. "I allow this type of play only on Fridays. On that day I have extra help to keep an eye on the play." B. "I focus on real-life heroes, inviting...

Language Arts?
I am applying or a Med Camp at Penn State and I have to write a thesis. This is what I have so far. "I have always been interested in the medical field. I remember when my dad used to take me hunting, we would gut the animal and I would always be asking "What's that?" "What ...

Maths
There are 2 towers that are each 10m high.  A rope that is 15m long is strung between the tops of the towers.  At its lowest point the rope sags 2.5m above the ground (see schematic diagram).  How far apart are the towers?

Creating High-Quality CentersCreating High-Quality
To enhance children's creativity, it's best to do which of the following? A. Teach children techniques and the proper use of tools as they're developmentally ready B. Teach children the correct way to draw an item such as a person C. Use a hands-off approach to children's art ...

Math
the graphs below shows the number of honor roll students in each grade at bridgeport middle school. which statement is true A. According to Graph 2, there are more than twice as many sixth graders on the honor roll than eighth graders on the honor roll B. The scale on Graph 1 ...

Oceanography
Algae can survive on the seafloor only in ____. A) Polar Areas B) Deep Areas C) Shallow Areas D) High-density areas I think it might be B or C.

Math
Three fourth of the number of girls in a school is equal to half of the number of the boys.if the school has 1420 pupils.how many of them are boys.

english
Which four lines in this excerpt from Stephen Crane’s “An Episode of War” show that there were poor medical facilities during the Civil War, and the injured were not properly tended to in the field hospital? a. The drivers were tossing the blame of it back and forth, ...

Math
When wrapping a birthday gift in the shape of a rectangular prism for his mother, Kenji adds an additional 2.5 square feet of gift wrap to allow for overlap.How many square feet of gift wrap will Kenji use to wrap a gift 3.5 feet long, 18 inches wide, and 2 feet high? In this ...

English 11
Can you send me a good reference about how to create a project proposal for a middle school stude like me? Thanks a lot.

math
A tower casts a shadow of 16m at the same time that a 2.5m post cast a shadow of 4m. How high is the tower?

Math
Building A is 40m high.The angle of depression of the top of Building B from the top of A is 26 degrees.if the two buildings are 10m apart,find the height of building B

calculus
A circular swimming pool has a diameter of 20 meters, the sides are 3 meters high, and the depth of the water is 2.5 meters. The acceleration due to gravity is 9.8 m/s2 and the density of water is 1000 kg/m3. How much work is required to: (a) pump all of the water over the ...

SS
3. What would be a good economic strategy for an area with tropical weather but few skilled workers? A. focus on growing high-­yield crops B. focus on urban planning and housing C. focus on developing education and a technology sector D. focus on building specialized ...

English
1. Middle school is the same. 2. Elementary school is the same. 3. Middle school is not the same as elementary school. 4. Middle school is different from elementary school. ------------------ In each sentence, Is 'same' an adjective or a pronoun? #3 is the same as #4 in ...

Accelerated Math
The cost of a student ticket to the school play is $7. Write an equation that correctly relates the total cost, c, for a particular number, s, of student tickets purchased. Identify the independent and dependent variables. (3 points)

English
What do you suppose McPhee means by “the influence of Ernest Hemingway evidently extended to the Pentagon”? This is the context this question is referring to: And inevitably we have come to Ernest Hemingway and the tip of the iceberg—or, how to fashion critical theory ...

English
I have to Write a short story about a main character who undergoes a change or learns something. obviously i don't want you to write it for me but i would like some ideas like i don't know about school or something because i seem to not have any creativity at the moment. thankyou

math
An 11-ft ladder leans against the side of a house. The bottom of the ladder is 8 ft from the side of the house. How high is the top of the ladder from the ground? If necessary, round your answer to the nearest tenth.

Science
Plzz Help me i need help Why is California's high speed rail such a groundbreaking effort??

world history
Please check my answers. 1. Which of the following separates the Arabian Peninsula from Africa? 1.The Persian Gulf 2.The Red Sea*** 3.the Indian Ocean 4.The Mediterranean Sea 2. Why is food often used as a positive benefit of the Colombian exchange, as described in this lesson...

maths
Mere, Sam and Nathan go to a bookshop to buy supplies for their school. Mere bought two erasers and four pencils and paid $2.40 for it. Sam bought six erasers, one pencil and two pens and paid $3.95 while Nathan paid $4.15 for an eraser, a pencil and four pens. Write a system ...

Math
A utility company charges $67.65 plus $1.1917 per therm for gas usage in excess of 50 therms. Last​ winter, one​ homeowner's bill ranged from a low of $196.35 to a high of $214.23. Over what range did gas usage vary​ (in therms)?

Calculus
At a sand and gravel plant, sand is falling off a conveyor and onto a conical pile at a rate of 6 cubic feet per minute. The diameter of the base of the cone is approximately three times the altitude. At what rate is the height of the pile changing when the pile is 22 feet high?

Math
Peter spends 1/4 of his salary on food, 1/3 on clothing and 1/5 on school fees. He saved the rest. What fraction if his salary did he save?

English
this is a sentence from Another Evening at the Club The spectres of the eucalyptus trees ranged along the garden fence rocked before her gaze, with white egrets slumbering on their high branches like huge white flowers among the thin leaves The author most likely compares the ...

Math
A middle school wants to have its students see a movie at a local theater. The total cost of the theater and movie rental is $1,500. What equation shows how the cost per student depends on the number of students who attend? I'm not really sure what this question is asking me ...

English
Write the correct word. The student was ____ of school rules and usually arrived late to class. disdain or disdained answer: disdained

Physics
A ball is thrown with a speed of 19m/s and at an angle of 46 degrees. How high does it go above the cliff to the nearest tenth?

Science
Can Someone explain this? Should other states wait to see if the high-speed rail system works well before starting their own plans for similar systems?

seabreeze high
A girl spends on fifth of the money in her purse. She then spends one fifth of what remains in the purse. She spends $72 in all. How much money did she have from the beginning?

Algebra
Suppose you throw a ball up in the air from the top of a 160 foot building. It's height h in feet after t seconds is given by the function h= -8t^ + 48t + 160 a) When does the ball reach it's maximum height? b) What is the ball's maximum height? c) How long does it take before...

Math
cheryl used 1 inch thick wood to build a planter for some flowers. the planter has 4 sides and a bottom but no top. the outside dimensions are 3 feet long, 6/12 inches wide, and 6/12 inches high. cheryl wants to know how much space the planter takes up. what is the volume of ...

math
from the top of 50 metre high hill the angle of depression of the top and the bottom of a tower are 30°and45°.find the hight of the tower

Algebra I
Suppose you throw a ball up in the air from the top of a 160 foot building. It's height h in feet after t seconds is given by the function h= -8t^ + 48t + 160 a) When does the ball reach it's maximum height? b) What is the ball's maximum height? c) How long does it take before...

Math - Trig
Two buildings of equal height are 850 feet apart. An observer on the street between the buildings measures the angles of elevation to the tops of the buildings as 29° and 40°. How​ high, to the nearest​ foot, are the​ buildings? I don't know how to set this up

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