Questions Asked on
April 4, 2014

Algebra
A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the equation y = –0.02x² +
asked by Sandra 
Algebra
A community group is planning the expansion of a square flower garden in a city park. If each side of the original garden is increased by 9 meters, the new total area of the garden will be 169 square meters. Find the length of each side of the original
asked by Sandra 
Physics
An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.5× 104 kg, and the force causes its speed to change from 7000 to 5000m/s. (a) What is the work done by the
asked by Elle 
Algebra  help
A model rocket is launched from a roof into a large field. The path of the rocket can be modeled by the equation y = –0.06x² + 9.6x + 5.4 where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters,
asked by Sandra 
statistics
Dylan wants to determine a 90 percent confidence interval for the true proportion of high school students in the area who attend their home basketball games. How large of a sample must he have to get a margin of error less than 0.03? [To find n, use the
asked by fm 
math
The Smiths want to buy a 9 ft. by 12 ft. carpet and center it in a 15 ft. by 20 ft. room. Can a 3 1/2 foot by 12 foot couch be placed against one of the long walls of the room without touching the carpet?
asked by justin 
Algebra
Use the quadratic formula to solve the equation. If necessary, round to the nearest hundredth. x² – 21 = –4x • 7, 3 • –7, 3 • 7, –3 • –7, –3
asked by Sandra 
Algebra
DeSean throws a ball up with an initial vertical velocity of 30 feet per second from a platform that is at ground level. How long will the ball be in the air?
asked by Kylie 
science
which of the following examples does not demonstrate a change in velocity? an elevator coming to a stop as it reaches the top floor a cruise ship heading west at a constant speed a soccer ball passed across the field a train remains at a constant speed as
asked by steve 
science
Which of the following examples does not demonstrate a change in velocity? An elevator slows down in order to stop at the top floor ← A cruise ship travels west at a constant speed A soccer ball is passed across the field or ← A train remains at a
asked by steve 
Calculus Help
When a foreign object lodged in the trachea (windpipe) forces a person to cough, the diaphragm thrusts upward causing an increase in pressure in the lungs. This is accompanied by a contraction of the trachea, making a narrower channel for the expelled air
asked by Selda 
Algebra
Solve the equation using the Zero Product Property. (3x + 1)(x – 5) = 0 • and 5 • and –5 • and 5 • and –5
asked by Sandra 
Biographical Essay Evaluation (Writeacher)
Write a 3paragraph Biographical Essay. Discuss your experiences with summer: the things you enjoyed and the things you missed about school. What I have written: "A strong sense of freedom is one of my favorite things about summer. It rids me of the stress
asked by Anonymous 
science
Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other my answer is c
asked by steve 
Algebra
I can't figure this out.. A physics student stands at the top of hill that has an elevation of 37 meters. He throws a rock and it goes up into the air and then falls back past him and lands on the ground below. The path of the rock can be modeled by the
asked by Sandra 
physical science
Which of the following pairs of objects would have the strongest gravitational pull? two buildings in the same city ← two tall buildings in different cities two stars very far away from each other two stars very close to each other my answer is c
asked by steve 
physics
Two manned satellites approaching one another at a relative speed of 0.500 m/s intend to dock. The first has a mass of 3.50 ✕ 103 kg, and the second a mass of 7.50 ✕ 103 kg. Assume that the positive direction is directed from the second satellite
asked by Anonymous 
Science
5.00 mol of solid A was placed in a sealed 1.00L container and allowed to decompose into gaseous B and C. The concentration of B steadily increased until it reached 1.10 M, where it remained constant. Then, the container volume was doubled and equilibrium
asked by Susie 
physical science
a model train moving at a constant speed around a circular track has a constant velocity?
asked by steve 
science
When a basketball changes shape as it bounces off the floor is it because of balanced force acting on it?
asked by steve 
math
A customer earned $3,262.50 interest on a 9month CD. How much was the opening deposit?
asked by kay 
Math
a wall in front of a house is shown below if 3/5 of the wall is brick how do you determine the height of the brick portion of the wall
asked by Anonymous 
Math, Geomertry
A total solar eclipse occurs when the moon passes between the earth and the sun, and the darkest shadow cast by the moon, called the umbra, hits the surface of the earth. If the umbra does not hit the surface, as shown in the following figure, then a total
asked by Luis 
Statistics
You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability =??
asked by Student 
Statistics
The heights of 18 year old men are approximately normally distributed, with a mean of 67 inches and a standard deviation of 5 inches. What is the probability an 18 year old man selected at random is between 66 and 68 inches? Use FOUR decimal places.
asked by Breeanna 
science
what doesn't have to be measured in order to describe motion
asked by steve 
Physics, science
An electric kettle contain 1.5kg of water at 100 degree and powered by a 2.0kw electric element. He the thermostat of the kettle falls to operate, approximately how long will the kettle boil dry? (take the specific latent heat of vaporization of water as
asked by Shedrack 
English
In which sentence are the conjunctions used correctly? A. Either Fred nor John knew about the accident. B. The top award was given to neither Steve or Jim. C. Neither beauty nor popularity was considered in the contest. D. Mary enjoyed neither roller
asked by NightShade 
Calculus Help Please!!!
does the function satisfy the hypotheses of the Mean Value Theorem on the given interval? f(x) = 2x^2 − 5x + 1, [0, 2] If it satisfies the hypotheses, find all numbers c that satisfy the conclusion of the Mean Value Theorem. (Enter your answers as a
asked by Uygur 
algebra
divide 15x^2 + 10x 5 by 5x
asked by anna 
grammar
The hospitalization was prolonged because of the absence of any good choices for oral medications to treat his UTI.
asked by Mia 
math
The PJC department of McIntyre Company shows gross sales of $730,600 for computer supplies and $934,900 for general office supplies. It has determined that computer supplies cost $534,000 and that general office supplies cost $391,400. What is the total
asked by tota 
math
As a savings plan for college, when their son Bob was born, the Wilburs deposited $10,000 in an account paying 8% compounded annually. How much will the account be worth when Bob is 18 years old?
asked by tota 
Physics
An infinitely long thin metal strip of width w=12cm carries a current of I=10A that is uniformly distributed across its cross section. What is the magnetic field at point P a distance a=3cm above the center of the strip? I have tried using the integration
asked by Joel 
Statistics
You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability=
asked by Ryan 
Decorating today
What tool can you use during the initial interview to gather information from a prospective client
asked by Rasheena 
chemistry/science
Not sure if i posted this but Need help with my pH calculations? 0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are dissolved in the same beaker of water, transferred to a volumetric ﬂask and made to 250.0 mL. The Ka
asked by dan 
MATH
Ella ordered 16 pizzas for a p. After the party,, there were 3 5/8 pizzas left. How much pizza was eaten? solve the problem
asked by RAJ 
Physics
a 5 kg crate falls from a height of 2.0 m into an industrial spring scale. When the crate comes to rest the compression of the spring is 24 cm. what is the spring constant?
asked by Valerie 
Science/Biology
Please check my answers: 1. Which of the following correctly states the relationship between monkeys and humans? A. Humans and monkeys evolved from apes. B. Humans evolved from monkeys. C. Humans and monkeys evolved from the same ancestor, which is now
asked by Anon 
Math, Geometry
The percent grade of a highway is the amount that the highway raises or falls in a given horizontal distance. For example, a highway with a four percent grade rises 0.04 mile for every 1 mile of horizontal distance. a. How many feet does a highway with a
asked by Luis 
Math
The percent grade of a highway is the amount that the highway raises or falls in a given horizontal distance. For example, a highway with a four percent grade rises 0.04 mile for every 1 mile of horizontal distance. a. How many feet does a highway with a
asked by Jose 
Business statistics
You take a trip by air that involves three independent flights. If there is an 67% chance each specific leg of the trip is on time, what is the probability all three flights arrive on time? (Round your answer to 3 decimal places.) Probability=
asked by Student 
Algebra 2
1.) According to the American College Test (ACT), results from the 2004 ACT testing found that students had a mean reading score of 21.3 and a standard deviation of 6.0. The scores are normally distributed. A student scores a 35. What percent of the data
asked by Lanie 
math
the compound amount on an investment of $8,500 at 12% interest, compounded quarterly, for 1 year.
asked by tota 
Math
An organization is planning a dance. The band will cost $400 and advertising costs will be $100. Food will be supplied at $2 per person. a. How many people need to attend the dance in order for the organization to break even if tickets are sold at $7 each?
asked by Jose 
Algebra Help
What is the value of c so that y = x² + 9x + c is a perfect square trinomial?
asked by Sandra 
Statistics
A survey of top executives revealed that 37% of them regularly read Time magazine, 21% read Newsweek and 38% read U.S. News & World Report. Eleven percent read both Time and U.S. News & World Report. What is the probability that a particular top executive
asked by Ryan 
Calculas
The profit obtained when x barbecues are sold is P(x) = 100 x − 3x^2 (lnx) dollars . Find the marginal profit when 4 are sold.
asked by jake 
chemistry
Plan how you would make 100mL of a buffer solution with a pH of 10.80 to be made using only sodium carbonate, sodium hydrogen carbonate and water. You should specify the amount of sodium carbonate and sodium hydrogen carbonate that you would use. Below is
asked by dan 
geometry
a a swimming pool having the shape of a rectangular solid has a length of 100 feet, a width of 32 feet,a depth of 8 feet. if the pool is 3/4 full with water,how many cubic feet of water are in the pool
asked by Anonymous 
alg
Sound intensity (loudness) varies inversely as the square of the distance from the source. If a rock band has a sound intensity of 100 decibels 25 feet away from the amplifier, find the sound intensity 50 feet away from the amplifier.
asked by f 
Science
Discuss how the structure of a virus correlates with its function.
asked by Shauna 
Biographical Essay Evaluation (Writeacher)
Write a 3paragraph Biographical Essay. Discuss your experiences with summer: the things you enjoyed and the things you missed about school. What I have written: "A strong sense of freedom is one of my favorite things about summer. It rids me of the stress
asked by Anonymous 
economics
what are welfare payments or consumer subsides
asked by Teacher 
Sentence Completion
Which word best completes this sentence? 1. Although the biographer claimed to admire his subject, his writing had a ______ tone. A. Tumultuous B. Sentimental C. Condescending D. Poignant I think the word that best completes this sentence is either a. or
asked by Anonymous 
chemistry
Need help with my pH calculations? 1) 0.10 mol of solid sodium hydrogen carbonate and 0.20 mol of solid sodium carbonate are dissolved in the same beaker of water, transferred to a volumetric ﬂask and made to 250.0 mL. The Ka for HCO3 – is 4.7 x
asked by dan 
Calculus Help Please!!!
Consider the following. f(x) = 8x(square root of (x − x^2)) Use a graph to find the absolute maximum and minimum values of the function to two decimal places.
asked by Malkoc 
CHEM ABSTRACT
I need to write an abstract for my chemistry lab for identifying an unknown acid, is there a generic list of what to do for an abstract? because mine are always to long
asked by Amber 
English
Determine Narrator's perspective They were standing under a tree, each with an arm round the other's neck, and Alice knew which was which in a moment, because one of them had "DUM" embroidered on his collar, and the other "DEE." "I suppose they've each got
asked by Anonymous 
Math
Here's a really tough question on Probabilities which I found on SnapQuiz! snapquiz.sg/viewQuestion.html?id=277 Is anyone able to explain the answer better?
asked by Geoffrey 
science
what type of friction does a maglev train reduce
asked by steve 
health
Anabolic steroids promote growth of skeletal muscle and the development of male sexual characteristics in ________. A. Males only B. Females only C. Both males and females D. Children only
asked by mix_lks 
English
1. Stop at the red light. 2. Stop on the red light. (Which preposition should we use?) 3. Turn slightly right. 4. This is a oneway street. (Are both grammatical?) 5. Fill it up with regular unleaded, please. 6. Fill her up with regular, please. 7. Fill it
asked by rfvv 
Math, Geomertry
A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel AC=10cm, BD=3 cm and D is the midpoint of AC. Round to the nearest hundredth.
asked by Luis 
physical science
would 2 stars very far away from each other have a strong gravitational pull
asked by steve 
Algebra
What is the value of c so that y = x² + 9x + c is a perfect square trinomial?
asked by Sandra 
Statistics
A survey of top executives revealed that 37% of them regularly read Time magazine, 21% read Newsweek and 38% read U.S. News & World Report. Eleven percent read both Time and U.S. News & World Report. What is the probability that a particular top executive
asked by Ryan 
Biographical Essay Evaluation (Writeacher)
Write a 3paragraph Biographicl Essay. Discuss your experiences with summer: the things you enjoyed and the things you missed about school. What I have written: "A strong sense of freedom is one of my favorite things about summer. Setting in only once the
asked by Anonymous 
Math
Each square represents 625 square feet, each line segment represents 25 feet. A galapagos tortoise must use 550 feet of fencing to enclose a space of 15,000.
asked by Anna 
Maths
If the 7th term of an AP is twice the third term and the sum of the first four terms is 42
asked by Eny 
Physics
A pitcher throws a 0.192kg baseball, and it approaches the bat at a speed of 43.2 m/s. The bat does 69.8 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 32.6 m above the
asked by Elle 
Persuasive Speech
I am doing a speech on why my college should add more bus shelters to the bus stops. So far I have a few points about more students using buses so less pollution and protecting students from the elements, talking about how if they are dressed nice for a
asked by Rebekah 
Math
one fourth of a box of cereal was shared equally among 3 people how much cereal did each person get ?
asked by Anonymous 
English
Determine the Narrator's perspective The huge man dropped his blankets and flung himself down and drank from the surface of the green pool. The small man stepped behind him. "Lennie!" he said sharply, got God sakes don't drink so much." Lennie continued to
asked by Anonymous 
English
Determine Narrator's perspective They were standing under a tree, each with an arm round the other's neck, and Alice knew which was which in a moment, because one of them had "DUM" embroidered on his collar, and the other "DEE." "I suppose they've each got
asked by Anonymous 
alg
Divide: (y3 − 44) ÷ (y + 2).
asked by f 
PHYSICS
A grinding wheel 0.3m in diametre has amass of 5kg is rotating at an angular velocity of 2300rev/min.what is the kinetic energy?
asked by Abeje 
science
Develop hypotheses predicting the effect of pyrite and coal on the acidity of water?
asked by debie 
Math
A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel AC=10cm, BD=3 cm and D is the midpoint of AC. Round to the nearest hundredth.
asked by Jose 
Physics
I'm having trouble setting up/solving this physics problem? Can someone please help me? Thank you. A 4700 kg lunar lander is in orbit 45 km above the surface of the moon. It needs to move out to a 340kmhigh orbit in order to link up with the mother ship
asked by Walter 
ADVANCED WORD PROCESSING
Sally will clear and set tabs in the Tabs dialog box. Desi will set and clear tabs on the Horizontal Ruler. Who is correctly setting and clearing tabs?
asked by nina 
math lit,business studies,accounting and computer
Can I be an accountant when doing these subjects?
asked by pamela 
Calculus Help Please!!!
Verify the given linear approximation at a = 0. Then determine the values of x for which the linear approximation is accurate to within 0.1. (Enter your answer using interval notation. Round your answers to three decimal places.) ln(1 + x) ≈ x Y1= I
asked by Tanya 
Social Studies
Read the speech below. It is a fictitious political speech by Peter, a candidate for the upcoming national election. Then answer the following questions: List all of the arguments in the speech List all of the nonarguments in the speech List all of the
asked by Mary 
L.A
Educating and caring for young children in changing society?
asked by Soso 
Chemistry
When you write rate laws, can you have a halforder?
asked by Anonymous 
PreCal
Solve Using Log Properties: 1/4 = 8^3x+5
asked by Maria 
PreCal
Please Can Someone Help Me Solve For x Using Log Properties: log(base 3) x*(x80)=4
asked by Maria 
science
how the structure of a virus correlates with its function.
asked by hov 
English
Determine the narrator's perspective Harold Davis took a deep breath and slowly started to peel the gauze from the wound on his grandmother's leg. "Hold on Grandma. I'm almost done," he said quietly. "Don't worry, baby. It doesn't hurt too much," she
asked by Anonymous 
English
Determine the Narrator's perspective The previous night, make your plans for the next day and write them down...If you attend an exclusive Samurai's party and feel timid, you cannot do your part in making it a successful party. You had first better prepare
asked by Anonymous 
English
Determine the Narrator's perspective The previous night, make your plans for the next day and write them down...If you attend an exclusive Samurai's party and feel timid, you cannot do your part in making it a successful party. You had first better prepare
asked by Anonymous 
helath
The MTF survey has measured drug, alcohol, and cigarette use and related attitudes among adolescent students nationwide. What does MTF stand for? A. Monitoring the future B. Managing the functioning addicts C. Mentoring the future D. Maintaining the
asked by mix_lks 
Calculus
Find the polynomial endbehavior asymptote in the graph of f(x)=(2x^3 +6x1)/(x+2)
asked by bex 
Physics
If an object has a work of 300J and a displacement of 20m, how would I determine the net force?
asked by Dan 
Algebra
Solve the equation by completing the square. x² – 7x – 4 = 0 • 7.53, –0.53 • –7.53, –0.53 • –7.53, 0.53 • 7.53, 0.53
asked by Sandra 
English
Determine the narrator's perspective Harold Davis took a deep breath and slowly started to peel the gauze from the wound on his grandmother's leg. "Hold on Grandma. I'm almost done," he said quietly. "Don't worry, baby. It doesn't hurt too much," she
asked by Sue 
PHYSICS
A grinding wheel 0.3m in diametre has amass of 5kg is rotating at an angular velocity of 2300rev/min.what is the kinetic energy?
asked by Anonym 
ALG
1 r = 1 r1 + 1 r2 for r2
asked by T 
physical science
is an elevator slowing down as it reaches the top floor a change in velocity?
asked by steve 
algebra
Solve for u: u − 2 u − 4 + 6 = u + u − 6 4 − u
asked by TT 
algebra
Simplify (2/3k)+(k/k+1) divided by (k/k+1) (3/k)
asked by TT 
alg
Solve for u: u − 2/ u − 4 + 6 = u + u − 6/ 4 − u
asked by TT 
Algebra
Find the solutions to the system. y = x² + 5x + 6 y = 4x + 12 (1 point)
asked by Sandra 
Statistics
The National Center for Health Statistics reported that of every 894 deaths in recent years, 25 resulted from an automobile accident, 185 from cancer and 309 from heart disease. What is the probability that a particular death is due to an automobile
asked by Ryan 
physics. PLEASE HELP
Where do I start? Calculate the water pressure at the bottom of the 50m {\rm m}high water tower shown in the photo. Express your answer to two significant figures and include the appropriate units. The question says to neglect the pressure due to
asked by Anonymous 
Physical science
1) how does the electric force between two oposite charges changes when the distance between the charges is tripled? 2)how does the electric force between two oposite charges changes when the amount of one charge is doubled?
asked by Melissa 
science
How can water cause both mechanical and chemical weathering?
asked by victoria 
math
he compound amount on an investment of $8,500 at 12% interest, compounded quarterly, for 1 year.
asked by tota 
PC
A piece of a broken wheel is shown. It was taken to a machine shop to be replaced with a new “whole” wheel. Find the radius of the wheel AC=10cm, BD=3 cm and D is the midpoint of AC. Round to the nearest hundredth.
asked by Jose 
Math
The curvature of a circle with radius r is defined as Descartes’ formula gives a relationship between the curvatures of the four circles. What are Descartes’ formula and the curvature of a circle? What does the sign of the curvature of a circle mean?
asked by Jose 
maths
Find the lenght of the arc from t : 2 to t : 6 for x : 5t3.y : 1 3t, z : 4t 5.
asked by sage 
math
Put 0.25 1/3 3/4 & 49% in order from least to greatest
asked by justin gonzalez 
MATH
IF 810 BOYS WEED A PLOT OF LAND IN 4 YEARS, HOW MANY YEARS WOULD IT TAKE 1080 BOYS TO WEED THAT SAME PLOT OF LAND?
asked by EMMANUEL 
Algebra need help
I do not know how to do this  also please explain... What is the value of c so that y = x² + 9x + c is a perfect square trinomial?
asked by Sandra