Thursday
September 29, 2016

Homework Help: High School

maths
From the top of a tree,15.5 meters high,the angle of depression of a leopard is 29 degrees. Calculate the distance between the leopard and the tree. I know the answer (it's provided to us as a guide), however the method is stumping me as my working out does not give me the...
Tuesday, August 16, 2016 by Gabi

Biology
why is water vital to maintaining a constant internal environment? A. It is cohesive* B. It is adhesive C. It is a good solvent D. It has a high specific heat
Tuesday, August 16, 2016 by Shun

physic
A tennis ball is projected horizontally from the top of a cliff 50m high with a velocity of 10ms -1 , find (a) the time taken to reach the ground (b) the distance from the foot of the cliff to where the ball hits the ground.
Tuesday, August 16, 2016 by jaja

Biology
Which of the following properties of water would be most important in protecting a fish in a shallow pond on a hot summer day? A. the low density of water in the solid phase B. water's strong forces of adhesion C. the high specific heat of water D. water's solvent ...
Monday, August 15, 2016 by Amber

physics
a stonne dropped from a cliff, takes 3.0secs to reach the sea. how high is the cliff?
Monday, August 15, 2016 by amaka

physics
from the top of a tower which is 122.5 m high,a stone is thrown horizontally with a velocity of 5 m/s. what horizontal distance will be stone travel before hitting the ground
Monday, August 15, 2016 by jessielyn

Math
1110 students at school, 230 of them are boys.if each classroom holds 30 students.how many classroom are needed at school.
Sunday, August 14, 2016 by Dijo

English
1. When school was over, we went home. 2. School being over, we went home. 3. School over, we went home. --------------------------- #1 can be changed into #2, right? What about #3? Can we use #3?
Friday, August 12, 2016 by rfvv

English
1. I walked to school, feeling embarrassed. 2. I walked to school, and I felt embarrassed. 2-2. I walked to school, and felt embarrassed. 2-3. I walked to school and I felt embarrassed. 3. I walked to school, while I felt embarrassed. 3-2. I walked to school while I felt ...
Friday, August 12, 2016 by rfvv

Calculus
The minute and hour hands on the face of a school clock are 8 inches and 6 inches long, respectively. Find the rate of change, in inches per minute, of the distance between the tips of the hands at 9:00.
Thursday, August 11, 2016 by Matt

Math
A man standing on top of a 100 foot building sites the top of a nearby building at an angle of elevation of 3.14/8. If he knows the nearby building is 160 feet high,what is his horizontal distance from that building.
Thursday, August 11, 2016 by Chrissy

Psychology
1.The rational style of learning sometimes conflicts with the traditional school environment. Could a school be created that takes advantage of the characteristics of the rational style? How? Are there types of learning for which the analytical style is clearly superior? 2....
Tuesday, August 9, 2016 by Ashley

Math
At 6th grade school dance , there 132boys and 89 girls and 14 adults
Monday, August 8, 2016 by Jesenia

Math
At 6th grade school dance , there 132boys and 89 girls and 14 adults
Monday, August 8, 2016 by Jesenia

trigonometric
a tower 61 m high is located 44 meters from a tall tree.from the top of the tree.the angle of elevation to the tower is 36 degrees. how tall is the tree?
Sunday, August 7, 2016 by mohammed

Algebra
A 12 foot ladder leans against the side of a house the bottom of the ladder is 8 feet from the side of the house how high is the top of the ladder from the ground
Friday, August 5, 2016 by Shawna

math
The total distance from Timothy's house to school was 9.18 km.He travelled by bus for part of the journey and walked the rest of the way.The distance he walked was 7.95 km less than the distance he travelled by bus.How far did Timothy walk.
Friday, August 5, 2016 by Joshua Yong

biology
Which of the following properties of water would be most important in protecting a fish in a shallow pond on a hot summer day? the low density of water in the solid phase water's strong forces of adhesion water's high specific heat water's solvent properties
Thursday, August 4, 2016 by Nyanka

math
An oil company operates two Southern refineries. The Alabama facility produces 500 barrels of high-grade oil and 200 barrels of medium-grade oil per day. The Texas facility produces 600 barrels of high-grade and 400 barrels of medium-grade oil per day. By operating each ...
Wednesday, August 3, 2016 by Kenny

Kopanang Senior Secondary school
What is MDCS and LDCS mean
Wednesday, August 3, 2016 by Pretty Molapo

general
RIDDLE:-! I like to twirl my body,but i keep my head up high,when i go in everything tight.what am I
Wednesday, August 3, 2016 by Reshma

mathematics
a school has 1800 students on its roll,40% of whom are girls.how many boys are there in the school
Wednesday, August 3, 2016 by piyush

biomechanics
A 50 kg pole vaulter has a horizontal velocity of 8 m/s at the completion of her approach run, and her center of gravity is 1.0 m high. Estimate how high she should be able to vault if her kinetic and potential energies were all converted to potential energy.
Wednesday, August 3, 2016 by anonymous

Budini ss chem
Describe the preparation of sodium hydroxide in the school laboratory.
Tuesday, August 2, 2016 by Isaac

Math
Building Bricks A child is playing with building bricks like this one. He decides to build the simple tower shown. How many bricks would he need to build this tower? If the last column was 14 bricks high how many bricks would he need? If the last column was 50 bricks high how ...
Monday, August 1, 2016 by Sandy

maths
in a school there are 15 more boys than girls. if the number of boys is increased by 20% and the number of girls is increased by 15% there would be 29 more boys than girls. how many students are there.
Monday, August 1, 2016 by Balaji

mathematics
There are thrice as many girls as boys at a school. If 35% of the girls and 45% of the boys have already completed their holiday project, what percentage of the learners still needs to complete their project?
Thursday, July 28, 2016 by edna

Math
The school is having a big event in the gym and wants to use their rectangular tables. 6 people can sit together at one rectangular table. If 2 tables are placed together, 10 people can sit together. So the pattern I noticed is 4 people added whenever a table is added, 1 table...
Wednesday, July 27, 2016 by John Dosley

Maths
James decided to paint his bedroom. His bedroom walls are 5 metres long and 3 metres high. If 6 litres of paint can cover 10 square metres of the wall, how much paint should James buy to paint all the walls of his bedroom. If paint costs $12.00 per litre, how much will James ...
Wednesday, July 27, 2016 by Ana

maths
james decided to paint his bedroom.his bedroom wall are 5 metres long and 3 metres high.if 6 metres of paint can cover 10 square metres of the wall,how much paint should james buy to paint all the walls of his bedroom.
Wednesday, July 27, 2016 by ana

math
Ravinder surveyed 36 student in the school. nine of them said they would attend the dance. if the school has 900 students, how much can Ravinder expect to attend the dance.
Tuesday, July 26, 2016 by sue

Army school math
Area of isosceles tringle if base is 6 cm and perimeter is 26 cm
Tuesday, July 26, 2016 by Ritesh

Fg public school quetta cant
_1_under root3i
Monday, July 25, 2016 by Abid

Math
A right circular cylindrical can is 6 inches high , and the area of its top is 36 square root square inches . What is the minimum number of square inches of construction paper it would take to cover the lateral surface of this can ?
Sunday, July 24, 2016 by Amy

MATHEMATICS
There are thrice as many girls as boys at a school. If 35% of the girls and 45% of the boys have already completed their holiday project, what percentage of the learners still needs to complete their project?
Sunday, July 24, 2016 by SERIRI

physics
a pendulum swing with a speed of 1.5 m/s at its lowedt point. How high will it rise before it stops
Sunday, July 24, 2016 by Anonymous

Calculus
A 20m ladder is leaning against a wall. Top of ladder is sliding down at 3m per second and the bottom is sliding away from the wall at 4m per second. How high is the top of the ladder and far is the bottom of the ladder from the wall.
Saturday, July 23, 2016 by Erica

physics
if an 80 meter high object placed 2 meter from a convex lens forms an image whose distance from the object is 2 meter; show with the aid of a diagram with appropriate scale the height of the image formed and confirm your answer using mirror law formula?
Saturday, July 23, 2016 by amara

Physics
Searches related to a stone is projected vertically upward with a speed of 14m/s from a tower 100m high. find the maximum height attained and the speed with which it strikes the ground
Friday, July 22, 2016 by Anonymous

Economics
Suppose you are a producer of friendship bracelets. How would the following events affect your/the market's willingness and ability supply friendships bracelets? Match the event on the left to the proper determinant on the right. 1. The price of friendship bracelets ...
Thursday, July 21, 2016 by Courtney

Economics
Suppose you are a producer of friendship bracelets. How would the following events affect your/the market's willingness and ability supply friendships bracelets? Match the event on the left to the proper determinant on the right. 1. The price of friendship bracelets ...
Thursday, July 21, 2016 by Madison

Math
You wish to paint your room. It's four walls measures 9ft high and 10ft wide. If one gallon of paint covers 120sq. ft, how many gallons of paint will you need? Please help?!!! Need this. Urgent.. With solutions please 🤖
Thursday, July 21, 2016 by Dianne

geography
examine the sphere of influence of an organisation that renders a service in your are. e.g. clinic, hospital, a local high school?
Wednesday, July 20, 2016 by josephinah

math
Anna earned some movie money by shoveling the driveway. sHe shoveled 1/5 of the driveway after school, then 1/2 of what was left after she did her math homework, then finished the remaining 200 square feet after supper.
Tuesday, July 19, 2016 by zoraida

Flying birds english school
a person in a kayak starts paddling, and it accelerates from 0 to 0.36 m/sec in a distance of 0.8m if the combined mass of the person and the kayak is 80 kg,what is the magnitude of net force acting on the kayak...??
Monday, July 18, 2016 by Aakash

English
1. She spoke in a very loud voice. 2. She spoke in a very high voice. 3. She spoke in a very low voice. 4. She spoke in a very soft voice. 5. She spoke with a very loud voice. ----------------------------------- Does #1 mean #2? Can we use both #3 and #4? What about #5? Can we...
Thursday, July 14, 2016 by rfvv

Economics
1. According to the data table below, what is the unemployment rate?: Total Population: 1,500 Population under 16 or institutionalised: 360 Not in the labor force: 450 Unemployed: 69 Workers with part-time work who want full-time: 30 A. 10% B. 11% C. 8.4% D. 6.9% E. 14% 2. ...
Wednesday, July 13, 2016 by Wesley

math
A boy reaches his school 1.4km away in 1hr 40mins at what speed does he travels?
Wednesday, July 13, 2016 by karan

pre cal
NASA launches a rocket at t=0 seconds. Its height, in meters above sea-level, as a function of time is given by h(t)=−4.9t^2+115t+220. Assuming that the rocket will splash down into the ocean, at what time does splashdown occur? The rocket splashes down after ? seconds. ...
Tuesday, July 12, 2016 by Anonymous

Econ
Please help me and review my answers for my quiz. Let me know which ones you believe to be right and wrong. 1. When P = AR = MR = AC = MC: X economic profits are positive. economic profits are zero. economic profits are negative. normal profits are zero. normal profits are ...
Sunday, July 10, 2016 by Frank

statistics
A large school district would like to estimate the mean score for all of its 5th grade students on a certain mathematics achievement test known to produce scores that are normally distributed in this population. In a pilot study, n = 25 randomly selected 5th graders take the ...
Saturday, July 9, 2016 by ella

English
1. The mountain is so high. We had better go for it. 1-1. The mountain is so high. We had better not go for it. 2. The mountain is so high. We had better go from it. 3. The mountain is so high. We had better go away from it. 4. The mountain is so high. We had better go around ...
Saturday, July 9, 2016 by rfvv

physics
A high fountain of water is located at the center of a circular pool as in the figure. A student walks around the pool and estimates its circumference to be 177 m. Next, the student stands at the edge of the pool and uses a protractor to gauge the angle of elevation of the top...
Saturday, July 9, 2016 by imani

math
A carpenter wants to use a 12-foot ladder to reach a window that's 10 feet high. Which formula would you use to determine how far to place the ladder from the base of the house?
Thursday, July 7, 2016 by lissy

precalc
A projectile is launched from a platform 10 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 + 10 feet.
Thursday, July 7, 2016 by Tony

math
The angle of elevation of the top of a tower from a point on a level ground 450m away is 20° find how high the tower is from the ground
Thursday, July 7, 2016 by lise

Physics
An astronaut wearing a spacesuit can jump 0.5 m vertically at the surface of the earth. The gravitational acceleration on Mars is 0.4 times that on the earth. If her takeoff velocity is the same, how high can the astronaut jump on Mars?
Wednesday, July 6, 2016 by Mathusha

physics
6. Cleo and Clare are looking from their balcony to a swimming pool below that is located 15 m horizontally from the bottom of their building. They estimate the balcony is 45 m high and wonder how fast they would have to jump horizontally to succeed in reaching the pool. What ...
Wednesday, July 6, 2016 by dario

math
John walks 600m from his house to the bus stop. He then travels 3200m by bus to his school. How far does john travel to get to school
Wednesday, July 6, 2016 by fgjjjj

intermediate algebra
Mr. Lakandula would like to increase his production of milkfish due to its high demand in the market. He is thinking of making a larger fishpond in his 8000 sq. m lot near a river. Help Mr. Lakandulaby making a sketch plan of the fishpond to be made. Out of the given sutuation...
Wednesday, July 6, 2016 by sylvia

Delta
According to a previous report, 25% of households had some type of high-speed Internet connection. Suppose 8 households are selected at random and the number of households with high-speed Internet is recorded (a) Find the probability that exactly 3 households have high-speed ...
Wednesday, July 6, 2016 by Anonymous

math
please help me solve this problem quickly! John and Melanie are designing a science experiment for the school science fair. Their experiment requires a large amount of copper wire. They need 22 spools of copper wire that each contains 31 meters of wire. How many kilometer of ...
Tuesday, July 5, 2016 by Nicole

Prealgebra
I've got a couple questions here, and I'm not sure how to solve any of them. 1. Armen is covering his countertop with new tile. His countertop is 3 meters long, and 2 meters wide. Each square tile is 10.5 centimeters on either side. Approximately how many tiles does he...
Tuesday, July 5, 2016 by Jinx

Physics
A roller coaster cart is pulled up to the top of the hill 45 m high before it plunges down to its lowest point, 5 m above the ground. What is the cart’s speed at this point? What is its potential energy if the mass of the object is 5 kg?
Tuesday, July 5, 2016 by mocampo

math
In a school of 960 pupil,48 were absent on a day. Calculate the percentage absent that day?
Sunday, July 3, 2016 by Nana

maths
In the school 4/5 of the students are boys and the no of girls is 100.find the no of boys?
Sunday, July 3, 2016 by vanitha

WRITTING SKILLS
(1)When you are in school any subject seems a potential area for a good job.(2)But when you are out on your own,you may find it difficult to land a job.(3)When you are told time after time that there are no jobs.(4)And it is time for some creative thinking and acting. (5)Do ...
Saturday, July 2, 2016 by ASIA

MATH
Out of 1200 pupils in a school, 900 are boys and the rest are girls. If 20% of the boys and 30% of the girls wear spectacles,find: a.how many pupils in wear spectacles b.what percent of the total number of pupils wear spectacles.
Friday, July 1, 2016 by DD

English Check answers
Transportation Strike Disrupts Westridge Thousands unable to get to work or school WESTRIDGE, Ohio—More than 600 transportation employees went on strike at midnight last night after the Westridge City Council rejected their demand for a 10% pay increase. The strike ...
Thursday, June 30, 2016 by Rebecca

Math( Assignment Due Today)
During a nature trip, Joni, Billy and Larry documented the location of an eagles nest. From point a, the campers observed the Eagles best on tip of a tree directly across a deep stream. The angle of elevation to the nest from point a is 35 degrees. The campers walked 42 m ...
Wednesday, June 29, 2016 by Candice

WRITING SKILLS
When you are in school, almost any subject seems a potential area for a good job. What correction should be made to this sentence? 1 replace your are with one is 2 remove the comma after school 3 change Subject to subject 4 insert a comma after area 5 no correction is necessary
Tuesday, June 28, 2016 by PIPER

Math
A framed picture 20 inches wide and 36 inches high is shown in the diagram below. The picture will be hung on a wall where the distance from the floor is 10 feet. The center of the picture frame must be 2 3/4 feet from the floor. A) determine the distance from ceiling to the ...
Monday, June 27, 2016 by Brooke

Grammer
I need to find a subject, verb and a object in this sentence. 1.Set a high value on spontaneous Kindness. Subject- verb- Object-
Sunday, June 26, 2016 by Mikey

Math
Ama, Karla and Daniel are siblings. Ama is 3 years older than Karla and Daniel is 2 years older than Ama.The sum of their ages is 32. How old is each child. Please help me I don't know what to do, it's my High School Summer Holiday Homework!!! But I'm still in ...
Saturday, June 25, 2016 by Laiba

Adulte Electronic school
s=k ln W * lottery numbers / g!^¥ + ([x:86:23]<€{fn t}) 1-How can I use this formula to get the five lotto numbers for 5/90 2-How can I place the 5 variable numbers (baseline)? 3-What are these values? 4-What compiler can I use to compile this formula?
Saturday, June 25, 2016 by Serge

Math
An observer atop a cliff sees a speedboat approaching a dock located at the base of the cliff directly below the observer. Express the distance, d, from the observer tot he boat as a function of the distance, x, from the boat to the dock, if the cliff is 150 feet high. State ...
Friday, June 24, 2016 by Brad

math
in city high school,the marching band has 48 members and the orchestra has 36 member.if there are only 12 students who belong to only one group and all students belong to at least one group how many students belong to both group?
Friday, June 24, 2016 by tina

Algebra
The Pi (π) Club at Math High School was planning a fundraiser to sell pepperoni pizza. A pizza company donated enough ingredients to make the equivalent of 300 extra large pepperoni pizzas (16” diameter). In trying to determine the number of pizzas of each size to ...
Thursday, June 23, 2016 by Carl

Algebra
The Pi (π) Club at Math High School was planning a fundraiser to sell pepperoni pizza. A pizza company donated enough ingredients to make the equivalent of 300 extra large pepperoni pizzas (16” diameter). In trying to determine the number of pizzas of each size to ...
Wednesday, June 22, 2016 by Carl

Math
The path of a satellite orbiting the earth causes it to pass directly over two tracking stations A and B, which are 35 mi apart. When the satellite is on one side of the two stations, the angles of elevation at A and B are measured to be 87.0° and 84.2°, respectively...
Wednesday, June 22, 2016 by Jennifer

Math: Personal Finance
Over the past 30 years, interest rates have varied widely. The rate for a 30-year mortgage reached a high of 14.75% in July 1984, and it reached a low of 4.64% in October 2010. A significant impact of lower interest rates on society is that they enable more people to afford ...
Wednesday, June 22, 2016 by Kinsey

Math (pre-celc 12)
In how many ways can a school president, a vice-president, and secretary be chosen from 21 students? I'm not sure to find this answer since there is no order in which they are chosen.
Monday, June 20, 2016 by Jana

math
The planet Mercury travels 180,600 miles in its orbit during the 7 hours that make up a typical school day. Find the unit rate.
Monday, June 20, 2016 by tyjuan carter

Physical Science Please Check Answers?
I have difficulties understanding physical science and I'd really appreciate it if someone would check over the answers of my practice quiz. I have a test coming up and I really don't want to fail it. I marked my answers with a ******. Thank you in advance! 1. A ...
Sunday, June 19, 2016 by Anya

Math
A cliff on the bank of a river is 250m high if d angle of depression of d point of d opposite side of the river is 50 degree,find the width of d river
Sunday, June 19, 2016 by Esther

Maths
A cliff on the bank of a river is 250m high if the angle of depression of the point of the opposite side of the river is 50 degree,find the width of the river
Sunday, June 19, 2016 by Temitope

Maths
A cliff on the bank of a river is 250m high if the angle of depression of the point of the opposite side of the river is 50 degree,find the width of the river
Sunday, June 19, 2016 by Anonymous

Physics
a ball of mass 100g is dropped from the top of a vertical cliff 45m high. Given that the velocity just before striking the sandy beach is 30m/s and the ball penetrates the sand to a depth of 10cm. Determine its average retardation force
Saturday, June 18, 2016 by Mercie

accounting
Tyler Constructions constructed a new campus block to house Business School. The building cost a tool of $180,000,000 to construct and was completed 30 March 2011, with an expected useful life of 60 years and residual value of $10,000,000. The building is depreciated on a ...
Saturday, June 18, 2016 by ss

social studies.
1. In 1886, a group of national trade unions formed the _____. b. American Federation of Labor. 2. Who was the steel company owner who built his company through vertical integration? c. Andrew Carnegie 3. John D. Rockefeller built his oil empire by creating _____. b. a ...
Friday, June 17, 2016 by cuz im cool.

math
A certain baseball hit straight up in the air, is at height represented by: h(t) = 4 + 50t – 16t2 , where t is time in seconds after being hit and h(t) is in feet. The function is valid for t > 0, until the ball hits the ground. a) Sketch the graph of this function. b...
Thursday, June 16, 2016 by hesse

statistics
the verbal section of GRE exam for admission into graduate school has a mean of 456 (s=140). Assuming the scores are normally distributed what percent of students will score 600 or higher? (choose range that fits your answer)
Thursday, June 16, 2016 by marisa

Pre-Cal
A 13-ft ladder leans against a building so that the angle between the ground and the ladder is 63 degrees. How high does the ladder reach on the building? (round your answer to the nearest foot)
Wednesday, June 15, 2016 by Jennifer

English
Write a speech in the following situation- You are the leading actor in a school play It is the interval in the play. The first half was dreadful, with actors forgetting their lines, props falling over and the audience laughing for the wrong reasons..‟ Use a range of ...
Wednesday, June 15, 2016 by Bob

science
When you return to your house from school, what is your displacement
Wednesday, June 15, 2016 by Anonymous

English
When every pencil meant a sacrifice his parents boarded him at school in town, slaving to free him from the stony fields, the meagre acreage that bore them down. They blushed with pride when, at his graduation, they watched him picking up the slender scroll, his passport from ...
Tuesday, June 14, 2016 by Anastasia

physics
In 1956, Frank Lloyd Wright proposed the construction of a mile-high building in Chicago. Suppose the building had been constructed. Ignoring Earth's rotation, find the change in your weight if you were to ride an elevator from the street level, where you weigh 532 N, to ...
Tuesday, June 14, 2016 by sonam

Math , new Oxford public school.
Find value of x and y in : 1/7x + 1/6y =3 1/2x - 1/3y =5 BY SUBSITUTING METHOD.
Tuesday, June 14, 2016 by Rishi

math
A cone-shaped glass and a tin can are filled with water. The height of the cone is 12" (12 inches) and it has a radius of 1.5" (1½ inches). The can is 2 inches high and has a diameter of 4 inches. Which container holds more water? How much more water does the ...
Monday, June 13, 2016 by Kate

physics
an elevator weighs 8000N. It leaves the main floor and arrives to the 15th floor which is 45 meters high. How much work was done by the motor
Sunday, June 12, 2016 by ryan

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