Questions Asked on
July 7, 2012

math
Julie spent $50 on a book. The cost of the book was $24 less than twice what she spent on a backpack. How much did the backpack cost?.
asked by Larry 
math
compute the value of 0.2^4 express answer numerically
asked by Larry 
Statistics
Answer the question Yes or No. Sam computed a 90% confidence interval for from a specific random sample of size n. He claims that at the 90% confident level, his confidence interval does not contain . Is this claim correct? Answer a. No b. Yes
asked by Desperate 
College Business Statistic
One operation of a mill is to cut pieces of steel into parts that will later be used as the frame for front seats in an automobile. The steel is cut with a diamond saw and requires the resulting parts to be within ±0.005 inch of the length specified by
asked by Heather 
chemistry
A 0.115L sample of an unknown HNO3 solution required 31.1 mL of 0.100 M Ba(OH)2 for complete neutralization. What was the concentration of the HNO3 solution?
asked by Anonymous 
Math
The sum of the ages of a brother and sister is 27. If four times the brother's age is subtracted from three times the sister's age, the difference is 11. Express your answer in terms of the symbols b and s. 27=?
asked by Larry 
Chemhelp
What mass of precipitate will form if 1.50 L of concentrated Pb(ClO3)2 is mixed with 0.750 L of 0.290 M NaI? Assume the reaction goes to completion.
asked by Anonymous 
Statistics
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 52 farming regions gave a sample mean of = $6.68 per 100 pounds of watermelon. Assume that is known to be $1.94 per 100 pounds. A farm brings 35 tons of
asked by Desperate 
Statistics
(1) Gluten sensitivity, which is also known as wheat intolerance, affects approximately 15% of people in U.S. Let p be the proportion in a random sample of 800 individuals who have gluten sensitivity. Find the probability that the value of p is (a) Within
asked by Good learner 
Statistics
What price do farmers get for their watermelon crops? In the third week of July, a random sample of 51 farming regions gave a sample mean of = $7.08 per 100 pounds of watermelon. Assume that is known to be $1.80 per 100 pounds. Find a 99% confidence
asked by Desperate 
Chemistry
You mix 19.5 gallons of a mixture containing 12 wt% NaCl (sol'n density = 1.0837 g/cm^3) with V2gallon sol'n that is 20 wt% NaCl (sol'n density = 1.1453 g/cm^3). Needed mixture is 19 wt% NaCl Whats the V2 in gallons? (all solutions are in water so just
asked by Jason 
math
I hope i am on the right track. Please look at my answer so I am doing correctly. The letters of the word mathematics are written on separate pieces of paper and put in a hat. What is the probability of drawing a vowel from the hat? (vowels are a, e, i, o
asked by Bria 
English
e.g. My father reads the newspaper every day. (What is the meaning of the sentence above? #1 or #2?) 1. My father reads the same/specific newspaper every day /repeatedly. 2. My father reads newspapers every day. He reads newly delivered newspapers every
asked by rfvv 
physics
In Rutherford's scattering experiments, alpha particles (charge = +2e) were fired at a gold foil. Consider an alpha particle, very far from the gold foil, with an initial kinetic energy of 3.3 MeV heading directly for a gold atom (charge +79e). The alpha
asked by mdave 
Language Arts
What kind of poem is Humpty Dumpty? a. Narrative b. limerick c. nonsense
asked by Renea 
english III
In “Luke Havergal,” what relationship has existed between Luke and the speaker? A. They were sweethearts. B. They were mother and son. C. They were sister and brother.
asked by britny 
algebra2 HELP PLEASE
If $8,500 is deposited in a compound interest account paying 3.9% interest annually, how much will be in the account after 12 years? round to the nearest cent.
asked by 26kllt 
math
using exactly four 4s and only addition, subtraction, multiplication, and division, write an expression that equals each of the numbers from 1 to 10. you do not have to use all the operations, and numbers such as 44 are permitted
asked by leo 
science
why does a wadded up foil sink
asked by lora 
science
What is the hydroxideion concentration of a 0.240 M oxalic acid, H2C2O4, solution? For oxalic acid, Ka1 = 5.6 × 10–2 and Ka2 = 5.1 × 10–5. 6)
asked by swapnil 
Statistics
True or False? As the degrees of freedom increase, the Student's t distribution becomes more like the standard normal distribution. Answer True False
asked by Desperate 
Statistics
True or false? If the original x distribution has a relatively small standard deviation, the confidence interval for will be relatively short. Answer True False
asked by Desperate 
Statistics
In the third week of July, a random sample of 61 farming regions gave a sample mean of = $6.88 per 100 pounds of watermelon. Assume that is known to be $1.72 per 100 pounds. A farm brings 30 tons of watermelon to market. Find a 98% confidence interval for
asked by Desperate 
statistics
According to a website about salaries, the national average salary as of October 2003 for a human resources clerk was $29,932. We assume that the annual salaries for clerks are normally distributed with a standard deviation of $1,860. (Give your answers
asked by holly 
algebra
Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The difference between two numbers is 3, and the sum of those two numbers is 21. What are the two
asked by Cory 
calculus
Can some explain how to do this problem? I tried using derivatives...but...I keep getting a different answer from what my teacher told me! A projectile is fired directly upward with an initial velocity of 144 ft/sec and its height (in feet) above the
asked by help 
calculus
A point moving on a coordinate line has position function s. Find the velocity and acceleration at the t, and describe the motion of the point during the indicated time interval s(t)=2t^3+15t^224t6 [0,5]
asked by Anonymous 
chem 151
You need to dissolve CaCl2 in water to make a mixture that is 31.5% calcium chloride by mass. If the total mass of the mixture is 419.0 g, what masses of CaCl2 and water should be used?
asked by Anonymous 
statistics
mean cholesterol is 175mg/dl..standard deviation =20mg/dl assume approx normal distribution ..is varied. what percentage has a cholesterol level above 155mg/dl?
asked by michelle 
English
1. She goes skiing every winter. 2. She goes skiing in winter. (What is the difference between the two? Are both the same?)
asked by rfvv 
Bio HELP!!!!
what is the name of the process throughh which polypeptides, polysaccharides or triglycerides are catabolised (broken down)?
asked by Jess 
MATH
Solve the following system of equations for the unknown variables. a + b = 7 a + c = 12 b + c = 15
asked by SAMMY 
accounting please help!
I have a total of 100 questions and am unsure about my answers to these ones 3. Margaret is a customer of Tammy Company. The company wrote off her account of $1,200 on August 15. On October 12, she sent in a payment of $560. What will Tammy Company record
asked by sady 
physics
suppose your car is on a 5% grade,if your car weighs 15,000N what is the component of its weight parallel to the road?
asked by Chad 
chemistry
What is the wavelength of a photon that has an energy of E = 4.01×10^19J ?
asked by Larry 
Statistics
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of some
asked by Desperate 
algebra
Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The sum of two numbers is 36. Their difference is 4. Determine the two unknown numbers.
asked by keith 
Chemistry
Distillation Scale up: In an experiment 100 lbmol of 47 lbmol % ethanol, 53 lb mol % water sol'n is fed into distillation column and separated into two streams: 100lbmol 0.470 lbmol ethanol 0.530 lbmol water goes to: steam 1: 17 lbmol 0.890 lbmol
asked by Simon 
stat
Find the area under the standard normal curve to the left of z = 1.88, P(z < 1.88). (Give your answer correct to four decimal places.)
asked by janet 
STATISTICS
An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.9 years of age. If the standard deviation is assumed to be 4.9 years, find the probability that a random sample of 33 U.S. women would
asked by judy( Help needed ,Please!? 
statistics
First graders who misbehave in school may be more likely to be regular smokers as young adults according to a new study presented in the July 2004 issue of the American Journal of Epidemiology. After following a group of U.S. first graders for 15 years, it
asked by jennifer 
physics
Suppose a cars brakes can produce an acceleration of 7m/s^2. If the car is traveling at an initial speed of 28m/s, what is the minimum distance necessary to stop the car?
asked by james 
math
The end points of the diameter of a circle are P(7,4)and Q(1,10).Find the coordinates of the center of this circle.
asked by makhdoom tayyaba 
physics
1\ Acar is moving with acceleration 200 m in 50 sec reached to velocity 10 m\sec .what the total distance the car moved in 60 sec
asked by fatma 
statistics
An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.9 years of age. If the standard deviation is assumed to be 4.9 years, find the probability that a random sample of 33 U.S. women would
asked by jennifer 
8th Grade English
Basic Skills Survey???? I went on my school's website for 8th grade this what we be doing in september: English Diagnostic Basic Skills Survey Summer Reading Assessment Friendly Letter Review Business Letter i already know about the summer reading and
asked by Laruen 
World History
The most common way the early river valley civilizations expanded was by. A. peaceful means. B. force of arms. C. political means. D. blending of cultures.
asked by Tito 
cjs/210
Will someone please help me find a website to find the answer to the following questions? What are the various functions of a police agency? Compare how the functions of a police agency differ at the federal, state, and local levels. What would happen if
asked by Picaboo 
math
Solve the following problems using Partial Quotients a. 7752/17 b. 651/3
asked by dan 
geometry
Two rectangles are graphed on a coordinate plane, which number represents the scale used to enlarge Rectangle ABCD to Rectangle LMNO? Answer choices 1/2 1 and 1/2 2 4
asked by Kim 
English
Where is the gas station? 1. It's opposite to the flower shop. 2. It's opposite the flower shop. (Which answer is right? Are both OK? Then, which answer is commonly used?)
asked by rfvv 
Physics
Modern bowling alleys have automatic ball returns. The ball is lifted to a height of 2.50 at the end of the alley and, starting from rest, rolls down a ramp. It continues to roll horizontally and eventually rolls up a ramp at the other end that is 0.700
asked by Sherry 
history
Examine the effects of World War II on the American family.
asked by Steve 
Mat 117
John has decided that he wants a newer car. So, he headed to the dealership, and rather than purchasing a model with 0% interest, the salesman encourages him to look at some of the new model year vehicles, with the statement, “With the 5.9% interest,
asked by Diane 
Statistics
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 61
asked by Desperate 
History
What do the colours and the symbols on the Canadian flag represent?
asked by Anonymous 
economics
entrepreneur edward is planning to open a business selling ice cream. he knows that the price of ice cream is determined by the forces of supply and demand but wants a report outlining five specific events that can be expected to cause the equilibrium
asked by Anonymous 
calculus
How do I take the partial derivative of P with respect to r of the following: D ~ P = ‡”(t=1 to T)[t ~ (CF)_t/(1+r)^t ]
asked by David 
spanish
Could we walk Monday or Tuesday instead?
asked by kathy 
us history
compare and contrast early settler's relations with native Americans in early Virginia and new England, thanks!
asked by skye 
statistics
An April 15, 2002 report in Time Magazine stated that the average age for women to marry in the United States is now 24.9 years of age. If the standard deviation is assumed to be 4.9 years, find the probability that a random sample of 33 U.S. women would
asked by jilla 
Foreign languages
I'd like you to revise these sentences. I need to include words really used when enquiring for a hotel room. Thank you very much,Writeacher. 1)My husband and I would like to spend the period from 3 August to 20 August at Your hotel. In particular, we are
asked by John 
Physics
When a mass is attached to a vertical spring, the spring is stretched a distance d. The mass is then pulled down from this position and released. It undergoes 53 oscillations in 30.6 s. What was the distance d? The answer is supposed to be 8.28 cm. How can
asked by James 
stats
A set of LSAT scores follows the normal curve. The average is 560, and the standard deviation is 60. Find the 80th percentile.
asked by sheri 
XMGT.216 / Ethics
I am needing workplace examples of ethical dilemmas involving a manager as a role model, everything I have searched so far on internet gives all other examples except this one, can you help?
asked by Cis 
physics
a 10,000hg car rounds a curve of radius 1200ft at 50mph what is its centripetal acceleration?
asked by John 
Physics
A 65kg box is sitting on a level surface, and a 208N force is pulling on the box to the right. find both the normal force and acceleration of the box
asked by Chad 
CJS/230
Will someone please hwlp me find a wesite to find the answer to the follwing questions? What is corrections accreditation? How does corrections accreditation affect the professional development of corrections officers? How can industry leaders plan for
asked by Picaboo 
Math
please help please show work so i can do others ok so i have to find the equation of the linethat contains given point and is parallel to the given line then write a slope intercept form if possible (8,4) y=1/2x+11 I also have to do the same for this
asked by chchch 
algebra
What is the answer for 4.(5)(5)35+21(3)(3)(3)
asked by ellen 
Math
Why is the asymptote of the function in Example #1 y=2 ? ( y = 4x+3 + 2 )
asked by Tony 
medical coding
Which of the following code categories should be chosen over codes from other chapters for the same condition? A. Complications of pregnancy B. Neoplasms C. Blood disorders D. Metabolic and nutritional diseases 2. Pyuria or bacteria in the urine should be
asked by Anonymous 
physics
1\ Acar is moving with acceleration 200 m in 50 sec reached to velocity 10 m\sec .what the total distance the car moved in 60 sec
asked by Anonymous 
science
I have an older furnace dryer which is used for drying copper ore, it operates at a temperature of 1000to 2500 degrees F.I have low concentrations of hydrogen sulfide in the area.My question is can sulfur dioxide be produced without the ore present at
asked by pierre 
math
give exact and approximate solution to the third decimal (x6)^=18
asked by tami 
Physics
A 100g block hangs from a spring with k = 5.2 N/m. At t = 0 s, the block is 20.0 cm below the equilibrium position and moving upward with a speed of 216 cm/s. What is the block's speed when the displacement from equilibrium is 27.0 cm? The answer is 172
asked by Annabelle 
Grammar
Is the word MUCH a verb?
asked by Losa 
math
Michel is twice as old as his sister sylvia. In four years three times Micheal's age is equvialent to five times of sylvia's age. How old is Micheal now
asked by Maryam 
science
step one of average pendulum was 38.0, 41.0, 35.0 period is 1.90 move bob back 15cm
asked by lora 
Math
f(x) = (x  0.6)2 + .66. turn into h/k form what is the quadratic regression equation using your calculator
asked by Tony 
geography
who the british isles formed geologicaly
asked by azim 
Social Studies
What are 3 reasons the DREAM act is fair? What are 2 examples for each reason?
asked by Maryam (: