Wednesday
August 27, 2014

Posts by anna


Total # Posts: 1,924

statistics
Construct a 95% confidence interval for the population mean. 5. Airfare A random sample of airfare prices (in dollars) for a one-way ticket airfare between two cities MN. Key: 21|1=211 21 | 1 2 22 | 1 1 1 2 3 5 7 8 23 | 2 3 4 7 7 8 9 9 24 | 2 3 4 8 8 25 | 1 2 6 6 6 6 8 9
February 23, 2014

statistics
Construct a 95% confidence interval for the population mean. 5. Airfare A random sample of airfare prices (in dollars) for a one-way ticket airfare between two cities MN. Key: 21|1=211 21 | 1 2 22 | 1 1 1 2 3 5 7 8 23 | 2 3 4 7 7 8 9 9 24 | 2 3 4 8 8 25 | 1 2 6 6 6 6 8 9
February 23, 2014

Physics
Sherlock Holmes examines a clue by holding his magnifying glass (with a focal length of 26.5 cm) 15.1 cm away from an object. Find the image distance. Answer in units of cm
February 21, 2014

Chemistry
Thank you!
February 10, 2014

Chemistry
A 76.00-pound flask of mercury costs $151.50. The density of mercury is 13.534 g/cm3. a) Find the price of one cubic inch of mercury by calculating the following intermediate values. What is the price of one pound of mercury? =$1.99 What is the price of one gram of mercury? =$...
February 10, 2014

Chemistry
A 76.00-pound flask of mercury costs $151.50. The density of mercury is 13.534 g/cm3. a) Find the price of one cubic inch of mercury by calculating the following intermediate values. What is the price of one pound of mercury? =$1.99 What is the price of one gram of mercury? =$...
February 10, 2014

Chemistry
A 76.00-pound flask of mercury costs $151.50. The density of mercury is 13.534 g/cm3. a) Find the price of one cubic inch of mercury by calculating the following intermediate values. What is the price of one pound of mercury? =$1.99 What is the price of one gram of mercury? =$...
February 10, 2014

Math Urgent help please
A lamppost casts a shadow of a man who is standing 15 feet away from the lamppost. The shadow is 5 feet long. The angle of elevation from the tip of the shadow to the lamp is 50. To the nearest foot, the lamppost is _____ feet tall. (Points : 2)
February 10, 2014

SICK
no matterfact I am sorry im not going to argue with teachers because that is very wrong.but I can give you all links to questions I posted through out the week with no answers??
February 1, 2014

SICK
ive been posting the same question for 2 days and you guys have been ignoring me no joke -_-
February 1, 2014

Math
Angie read 2 books in 5 days, and each book contained 340 pages. If Angie read the same number of pages each day, how many pages did she read per day? A.)75 B.)340 C.)680 D.)136
February 1, 2014

social studies(CHECK ASNWERS)
please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few key leaders. C.It ended ...
January 31, 2014

socialstudies(CHECK ANSWERS)
PLEASE CHECK MY ANSWERS please check my answers and if there wrong maybe you could tell me the correct one.but thanks anyways. 1. How did the formation of the National Action Party change Mexican politics? A.It ended the one-party system. B.It consolidated power among a few ...
January 31, 2014

chemistry
Need help balancing this chemical reaction equation Ca(NO3)2+2NaOH>Ca(OH)2+2NaNO3
January 30, 2014

Calculus
Find the critical numbers of the function. h(t) = t3/4 − 5t1/4
January 28, 2014

Calculus
A poster is to have an area of 160 in2 with 1 inch margins at the bottom and sides and a 7 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.)
January 28, 2014

Calculus
Find the absolute maximum and absolute minimum values of f on the given interval. f(x) = (x2 - 1)3 [-1, 6]
January 28, 2014

Calculus
Find the absolute minimum and absolute maximum values of f on the interval below. f(x) = x4 - 8x2 + 6 [-3, 4]
January 28, 2014

Calculus
Find two numbers whose difference is 132 and whose product is a minimum.
January 28, 2014

Calculus
A box with a square base and open top must have a volume of 4,000 cm3. Find the dimensions of the box that minimize the amount of material used.
January 28, 2014

Calculus
A poster is to have an area of 160 in2 with 1 inch margins at the bottom and sides and a 7 inch margin at the top. What dimensions will give the largest printed area? (Give your answers correct to one decimal place.)
January 28, 2014

Please help with Physics Quickly
1. How are impulse and momentum related? (Points : 1) Impulse is the change in momentum of an object. Momentum is the change in impulse acting on an object. Impulse and momentum are always equal in magnitude. Impulse and momentum are the same thing. Question 2. 2. Which of ...
January 27, 2014

Psychology
Within each gene, elements of DNA are arranged in a particular order, forming a code that influences the synthesis of particular proteins. This code affects every aspect of the body, from its structure to the chemicals that keep it running. The above process describes:
January 27, 2014

chemistry
What is the concentration of a solution, in gsolute/100gsolvent, made using 2.29 g of KNO3 in 2.03 g of H2O?
January 24, 2014

literature
Can someone help me in scansion of the poem "the poplar field" by William Cowper? need help to find base meter, scheme, stanza forms if any, and the metrical peculiarities such as end-stopped lines, run-on lines, elision, pause, feminine ending, masculine ending and ...
January 15, 2014

Math
the length of a rectangle is seven less than four times the width. Find the length if the area is 65 square units.
January 11, 2014

physics
A mass M of 7.00E-1 kg slides inside a hoop of radius R=1.30 m with negligible friction. When M is at the top, it has a speed of 5.47 m/s. Calculate the size of the force with which the M pushes on the hoop when M is at an angle of 39.0°.
December 24, 2013

language arts
#4. C
December 18, 2013

language arts
This the passage for #2 &3: I checked into a hotel called the Olympia, which is right on the main street and the only hotel in the town. After lunch I was hanging around the lobby, and I got to taking to the guy at the desk. I asked him if this wasn't the town where that ...
December 18, 2013

Physics
A stone is thrown vertically upward at a speed of 27.70 m/s at time t=0. A second stone is thrown upward with the same speed 2.140 seconds later. At what time are the two stones at the same height? At what height do the two stones pass each other? What is the downward speed of...
December 17, 2013

Physics
A stone is thrown vertically upward at a speed of 27.70 m/s at time t=0. A second stone is thrown upward with the same speed 2.140 seconds later. At what time are the two stones at the same height? At what height do the two stones pass each other? What is the downward speed of...
December 17, 2013

physics
A stone is thrown vertically upward at a speed of 27.70 m/s at time t=0. A second stone is thrown upward with the same speed 2.140 seconds later. At what time are the two stones at the same height? At what height do the two stones pass each other? What is the downward speed of...
December 15, 2013

Algebra
A roadside vegtable stand sells pumpkins for $5 each and squashes for $3 each. One day they sold $6 more squash than pumpkins, and their sales totaled $98. Write and solve a system of equations to find how many pumpkins and squash they sold?
December 10, 2013

Chemistry
In a solution with carbon tetrachloride as the solvent, the compound VCl4 undergoes dimerization: 2VCl4 <-> V2Cl8 When 6.6834 g VCl4 is dissolved in 100.0 g of carbon tetrachloride, the freezing point is lowered by 5.97*C/ Calculate the value of the equilibrium constant ...
December 10, 2013

21
help me 9th gradge
December 4, 2013

math
45yards/minutes=______in./s
December 2, 2013

PRE-ALGEBRA
A 55-minute long distance phone costs 2.75.What is the cost per minute
December 2, 2013

Math help, anyone?
Solve the proportion. Where necessary, round to the nearest hundredth. Plz help i really need 2 get this in!! 11. 9/10 = x/10 9 *** 90 10 100 12. x/4 = 6/7 168 0.21 28 3.43 13.Write the ratio as a fraction in simplest form. 22:36 14. Write the ratio as a fraction in simplest ...
November 26, 2013

Biology
What do you think, is it likely that we will insert genes for new and better properties in humans? Is it desirable? What dangers can you see with such a development?
November 26, 2013

Plz help :(
Mrs. Sue plz help!!!
November 25, 2013

Science
Luis wanted to create a clay model of earth and the sun. To show how Earth rotates, Luis wants to use a toothpick to represent Earth's axis of rotation. Where should Luis place the toothpick? A. Horizontally through Earth in the direction Earth is traveling B. Vertically ...
November 20, 2013

US History
What times is Paine referring to? “These are the times that try men's souls. The summer soldier and the sunshine patriot will, in this crisis, shrink from the service of their country; but he that stands it now, deserves the love and thanks of man and woman."
November 16, 2013

US History
What is Patrick Henry referring to when he states : "Their clanking may be heard on the plains of Boston"?
November 14, 2013

US History
What does Patrick Henry mean when he writes "Shall we acquire the means of effectual resistance, by lying supinely on our backs..."
November 14, 2013

US History
thanks again
November 12, 2013

US History
What is Thomas Jefferson trying to say in this excerpt from the Declaration of Independence ? :The Right of the People to Control Their Government . . . We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain...
November 12, 2013

US History
thank you so much i was having problems because i dont speak the way that he speaks but thank you so much
November 12, 2013

US History
What does this excerpt from Common Sense by William Paine mean: But there is another and greater distinction for which no truly natural or religious reason can be assigned, and that is, the distinction of men into KINGS and SUBJECTS. Male and female are the distinctions of ...
November 12, 2013

Physics
n,bhyguftchg vb
November 12, 2013

math
Yes
November 12, 2013

Business
$1,604,505
November 5, 2013

math
Slope intercept form is y=mx+b m- slope b- y-intercept To finish this problem, you have to find what the y-intercept is. Just put in what you know first, and try to figure out b. 3=4(-3)+b 3= -12 =b +12 +12 15=b You can know see that 15 is b, and you can fill in the slope ...
November 4, 2013

5TH GRADE Math
To find the common factor of something, you have to post all the factors of each number. For #1 you would do: 1- 1 4- 1, 2, 4 8- 1, 2, 4, 8 32- 1, 2, 4, 8, 16 Obviously the first one is 1. A easy way to find the common factor of these questions, is simply by seeing the first ...
November 3, 2013

Organic Chemistry
3.What would be the major product if 1,4-dibromo-4-methylpentane was allowed to react with: a)One equivalent of NaI in acetone? b)One equivalent of Silver Nitrate in ethanol?
November 1, 2013

Science
how does energy provided by the sun influence global weather patterns?
October 26, 2013

Science
thank you!
October 26, 2013

Science
How is earth like a system?
October 26, 2013

english
Which one of the following sentences is correctly punctuated? A. Look up, look down, and look all around? B. Smile when you say that, Partner? C. When will the winter end? D. Look at me, then say what you have to say?
October 20, 2013

Science
Calculate the amount of energy in the form of heat that is produced when a volume of 3.56 L of SO2(g) is converted to 3.56 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 bar and 25.0 °C. Assume ideal gas behavior.
October 15, 2013

chemistry
Calculate the amount of energy in the form of heat that is produced when a volume of 3.56 L of SO2(g) is converted to 3.56 L of SO3(g) according to this process at a constant pressure and temperature of 1.00 bar and 25.0 °C. Assume ideal gas behavior.
October 15, 2013

calculus
Determine the value(s) of x where the function will have an instantaneous rate of change of 14. (Enter your answers as a comma-separated list. If an answer does not exist, enter DNE.) f(x) = x3 + 33 x2 + 14 x + 39
October 3, 2013

math
A NUMBER X IS INCREASED BY 27 AND THE RESULT IS MULTIPLED BY 6 GIVING 372 AS THE RESULT
October 3, 2013

math,pre algebra
Apples sell for 1.29 a pund and there is an average of 3 apples per pund.About how many apples would you expect to get for 5.00
October 3, 2013

Math
During a week-long dry spell,the water level in a pond decreased by 4 inches per day except for two days when it decreased by half of that amount. How much did the water level decrease in the pond in one week?
September 30, 2013

Spanish
Thanks btw what would gusto mean?
September 30, 2013

Spanish
I dont get what word to choose: Estudias mucho, ¿ (blank)? Do I fill it in with verdad or gusto? Why?
September 30, 2013

chemistry 1405
how to write a nuclear equation for the nuclear decay of Ra-226 to an isotope of radon-222
September 25, 2013

Physics
A bicyclist makes a trip that consists of three parts, each in the same direction (due north) along a straight road. During the first part, she rides for 21.0 minutes at an average speed of 9.48 m/s. During the second part, she rides for 43.5 minutes at an average speed of 3....
September 17, 2013

science
'The subscripts in the chemical formula for a molecular compound are not always in the lowest ratio.' Using what you know about naming binary molecular compounds, provide evidence that supports this statement.
September 14, 2013

English
i have to take out embellishments, misquotations,false benefits and unethical tactics out of these sentence can some one help me All customers qualify for the maximum discount available.
September 8, 2013

Math
A school cafeteria sells sandwiches for $4.50 each, cartons of milk for $1 and bananas for $0.50 each. One table of students spent $36.00 total. They bought 2 more milks than sandwiches and they bought two time more sandwiches than bananas. How many bananas did the students buy?
September 5, 2013

Maths
If Joseph can consume in one sitting one medium (30cm) deep dish (2.5 cm thick)pizza, what is the minimum from nine to ten centimeters?
August 12, 2013

Math
Consider the weighted voting system [75: 31, 29, 23, 16, 8, 7]. Find each: a. The total number of players b. The total number of votes c. The weight of P3 d. The minimum percentage of the votes needed to pass a motion 9rounded to the next whole percent)
August 9, 2013

statistical analysis
According to the “January theory,” if the stock market is up for the month of January, it will be up for the year. If it is down in January, it will be down for the year. According to an article in the Wall Street Journal, this theory held for 29 out of the last 34 ...
August 1, 2013

statistical analysis
Hi there, I am a senior trying to get some assistance with one of my many papers. Thank you!
August 1, 2013

statistical analysis
New Process, Inc., a large mail-order supplier of women’s fashions, advertises same-day service on every order. Recently, the movement of orders has not gone as planned, and there were a large number of complaints. Bud Owens, director of customer service, has completely ...
August 1, 2013

statistical analysis
Compute the mean and variance of the following discrete probability distribution. x P(x) 2 .50 8 .30 10 .20 Please assist and guide accordingly. Thank you so very much!
August 1, 2013

statistical analysis
2. The Computer Systems Department has eight faculty, six of whom are tenured. Dr. Vonder, the chair, wants to establish a committee of three department faculty members to review the curriculum. If she selects the committee at random: a. What is the probability all members of...
August 1, 2013

statistical analysis
A _________ is the total collection of individuals or objects.
July 24, 2013

algebra
Company A rents copiers for a monthly charge of $360 plus 12 cents per copy. Company B rents copiers for a monthly charge of $720 plus 6 cents per copy. What is the number of copies above which Company A's charges are the higher of the two?
July 20, 2013

ENGLISH
aha i really didnt know what is this for shure so thans anyway
June 27, 2013

ENGLISH
hahahahah ok thanks for help :))
June 27, 2013

ENGLISH
hahaha ok i hope this is it: ok,everyone,listen,please,I want to go over the plans for tonight one more time.Henrys train A)gets in at eight o'clock and he B)is expecting to be picked up by me and taken to a late meeting.On a way from a station,I C)will stop to get some ...
June 27, 2013

ENGLISH
is this correct:A A C B D C C D B A C B
June 27, 2013

ENGLISH
you really help me at a last one and if you have some time can you help me whit this too? Read the text and choose the correct answer. ok,everyone,listen,please,I want to go over the plans for tonight one more time.Henrys train_________at eight o'clock and he________ to be...
June 27, 2013

ENGLISH
can you please help me to solve this task? Complete the sentences with the correct form of the verbs in brackets. I 1 _____________________ (go) to the gym for quite a long time and I 2 _____________________ (still wait) to see some results. Every time I go, I 3 ...
June 27, 2013

Business Math
Abe Wolf bought a new kitchen set at Sears. Abe paid off the loan after 64 days with an interest charge of $12. If Sears charges 9% interest. What did Abe pay for the kitchen set (assume 360 days
June 22, 2013

Physics
Light of intensity 2 Wm^–2 is traveling through air (n = 1.0) is normally incident on a dielectric surface. If the intensity of the reflected light is 0.3 W m^–2 what is the refractive index of the dielectric material?
June 13, 2013

spanish
Que es Yaocuicatl?
June 9, 2013

english
what are some example of how the tv parlor in fahrenheit 451 is harmful
May 21, 2013

social studies
what happened to Denver after the gold rush?
May 16, 2013

School
How much force would you need to apply to a 1.7kg object to have it reach 5.8 m/s if it starts from rest?
May 16, 2013

Physics
Susie weighs 100lbs. Sam weighs 150. The seesaw is 20ft long. The seat on one side only is movable in one foot increments. At what distance from the axis should the seat be placed in order for them to balance? Where should each person sit?
May 12, 2013

music
HOW DO I IDENTIFY INTERVALS???? I need to know major, minor, augmented, diminished, and perfect. so here is what I kind of understand so far: PU: 0 half steps P4: 5 half steps P5: 7 half steps P8: 12 half steps, and for any one of these to be diminished, there needs to be one ...
May 12, 2013

CHEMISTRY Homework
What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are platinum.)
May 10, 2013

Chemistry Question
Thank you I really appreciate your help!
May 10, 2013

Algebra
Are you doing ashworth Brittany?
May 8, 2013

algebra
A coffee shop sells small cups of coffee and large cups of coffee. A small cup of coffee costs $2. A large cup of coffee costs $3. On Tuesday, the store sold a total of 155 cups of coffee for a total of $335. How many small cups of coffee did the store sell on Tuesday?
May 7, 2013

chemistry
WHEN DOES A CHEMICAL BECOME A DRUG?
May 5, 2013

computers
Which type of chart would best illustrate each department's sales as a percentage of the overall store sales? Answer a. area b. bar c. line d. pie
May 2, 2013

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