Thursday
August 21, 2014

Posts by Esmeralda


Total # Posts: 30

algebra
a random sample of 1000 people was chosen for a survey. 80% of them had health insurance. Find the 95% confidence interval
July 23, 2014

math
How do we know how to do the expanded form for 3,552,308,725
September 2, 2013

Penn Foster
ms.sue, thank for taking your time to help. now on question 2 i am between a&d after reading up on the link you provided. both make sence to me.
April 9, 2012

Penn Foster
Would you please help me with these two questions on which i am not sure of my answers.? I marked my answers with a parenthesis. On the second question I can not make up my mind between c & d. Thank you for any assistance you can provide. waiting for your prompt response. 1. ...
April 9, 2012

us history
how might the overall atmosphere of the 1920's have contributed to the failure of prohibition?
March 9, 2012

us history
do you think the passage of the volstead act and the verdicts of the scopes trial are in line with traditional american values?
March 9, 2012

u.s.history
how successful was Harding in fulfilling his campaign pledge pf returning the country to normalcy?
March 9, 2012

Pre-Algebra with PIZZAZZ
You should say HALO when you meet an angel.
February 1, 2012

Math
Three different numbers are chosen at random from the set {1,2,3,4,5}. The numbers are arranged in increasing order. What is the probability that the resulting sequence is an arithmetic sequence?
December 9, 2011

Math
Three different numbers are chosen at random from the set {1,2,3,4,5}. The numbers are arranged in increasing order. What is the probability that the resulting sequence is an arithmetic sequence?
December 9, 2011

physics
(A)A runner is jogging at a steady 7.7 km/hr. when the runner is 3.9 km. form the finish line, a bird begins flying from the runner to the finish line at 46.2 km/hr (6 times as fast as the runner). When the bird reaches the finish line, it turns around and flies back to the ...
September 9, 2011

science
(A)A runner is jogging at a steady 7.7 km/hr. when the runner is 3.9 km. form the finish line, a bird begins flying from the runner to the finish line at 46.2 km/hr (6 times as fast as the runner). When the bird reaches the finish line, it turns around and flies back to the ...
September 9, 2011

books
what tense is the feminine mystique written in? first , third or omniscient?
January 10, 2011

social studies
In 1973, Congress enacted the endagered species Act (ESA) to protect plants and animals from extinction. Many methods are used for protection. Residential or commercial developments may be banned in an area that is set aside to protect animal or plant life. People may ...
December 15, 2010

Chemistry
I have a lab for chemistry that I have to turn in soon, and I have no idea what the major and minor species if any of each of the substances we tested. Can someone please help me answer which one is the major/minor species of each of the elements? They are: 1. H2O(deionized)[...
September 12, 2010

Chemistry
I have a lab for chemistry that I have to turn in soon, and I have no idea what the major and minor species if any of each of the substances we tested. Can someone please help me answer which one is the major/minor species of each of the elements? They are: 1. H2O(deionized)[...
September 12, 2010

3rd grade math
a b c
May 11, 2010

3rd grade
dont know
May 3, 2010

Physics
where should an object be placed in front of a concave mirror so that it produces an image at the same location as the object? Is the image real or virtual? Is the image inverted or upright ?
April 19, 2010

Chemistry
A 45 g sample of a ketose with a general formula CnH2nOn gives 18.45 liter of CO2 at 27C and 2 atm and 27 g of water when burned. If 1.204 x 10 23 molecules of this ketose weigh 30 g, what are its molecular and structural formulas ?
April 18, 2010

Chemistry
A 45 g sample of a ketose with a general formula CnH2nOn gives 18.45 liter of CO2 at 27C and 2 atm and 27 g of water when burned. If 1.204 x 10 23 molecules of this ketose weigh 30 g, what are its molecular and structural formulas ?
April 18, 2010

physics
A shaving/makeup mirror is designed to magnify your face by a factor of 1.33 when your face is placed 20.0 cm in front of it. (a) What type of mirror is it? (b) Describe the type of image that it makes of your face. (c) Calculate the required radius of curvature for the mirror.
April 17, 2010

physics
A shaving/makeup mirror is designed to magnify your face by a factor of 1.33 when your face is placed 20.0 cm in front of it. (a) What type of mirror is it? (b) Describe the type of image that it makes of your face. (c) Calculate the required radius of curvature for the mirror.
April 17, 2010

physics
A shaving/makeup mirror is designed to magnify your face by a factor of 1.33 when your face is placed 20.0 cm in front of it. (a) What type of mirror is it? (b) Describe the type of image that it makes of your face. (c) Calculate the required radius of curvature for the mirror.
April 17, 2010

12th grade
Think of a business in your local area. Describe its operation in terms of factor markets and product markets.
September 21, 2008

Chemistry using concentration
that makes no sense....better explanation please
May 12, 2008

Chemistry using concentration
How many milliliters of 0.1256 M NaOH are required to provide 1.852 g of NaOH?
May 12, 2008

chemistry
thank you
May 11, 2008

chemistry
The specific gravity of a sample of concentrated nitric acid is 1.42. What is the volume in liters at 20oC occupied by 145.3 g of this concentrate nitric acid?
May 11, 2008

world history
What freedoms were the people of Napoleon's day willing to sacrifice?
November 15, 2006

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