Monday
September 22, 2014

Posts by sheri


Total # Posts: 54

Chemistry
How to make 0.086M sodium phosphate when combined with 0.1N HCl has a pH of 6.2?
August 27, 2014

math
how to solve linear functions f(x)= 2x if x greater than or equal to -1 x-1 if x less than -1
February 9, 2014

algebra
how much money must Andrea invest for 2 years in an account that earns an annual simple interest rate of 8% if she wants to earn $300 from the investment?
January 31, 2014

6th grade science
The erosive energy of rivers alters landscapes over periods of millions of years. Which of the following increases a river's rate of erosion? A)low gradient B)high discharge C)small load D)decreased speed
May 22, 2013

math
x=y plus 19 and x plus y=13=
January 15, 2013

math
A circular walkway has a diameter of 182 m. Approximate the distance around the walkway. Use for 22/7 for square root?
September 9, 2012

Chemisty
Please help...I know I'm missing something here if 50.0mL of AgNO3 reacts with 25.0mL of 0.100M of K2CrO4, what is the molarity of silver nitrate?
August 10, 2012

Statistics
ANYONE HAVE ANY HELP FOR ME ON THIS???
July 26, 2012

Statistics
A regression equation was calculated and is given below. The values for Miss America are values such as 0, 1, 2, 3, 4, etc. Regression Analysis: GPA versus Miss America The regression equation is GPA = 3.32 - 0.0890 Miss America b. What is the response variable? The values of ...
July 26, 2012

Statistics
What is the interpretation of the p-value for the Chi-Squared Statistic value of 2.469? -- were do I go from here on this one??
July 26, 2012

Statistics
A researcher wants to see if gender plays a role in where we sit in a restaurant. An analysis of survey data yields the following contingency table, chi-squared value, and p-value: Tabulated statistics: Gender, Seating Rows: Gender Columns: Seating Back Front Middle All Female...
July 26, 2012

Statistics
this answer is wrong
July 26, 2012

Statistics
I am confused --- so the correct answer is 2.965 or do I have to +, - from 3.2454 to get a range?
July 26, 2012

Statistics
Given the sample mean of GPA, the sample SD, and the SE below: SM: 3.2454 SD: 0.4635 SE: 0.0309 construct a 99.7% confidence interval for the population mean gpa. My answer: 3.2145 to 9.6435
July 26, 2012

Statistics
THESE ARE WRONG
July 26, 2012

Statistics
Standard Deviation Standard Error
July 26, 2012

Statistics
Given the sample mean of GPA, the sample SD, and the SE below: SM: 3.2454 SD: 0.4635 SE: 0.0309 construct a 68% confidence interval for the population mean gpa My answer is: 0.4635 to 3.7089
July 26, 2012

statistics
DOES ANYONE EVEN ANSWER THESE HOMEWORK CHECKS?I have posted 3 or 4 Q/A and no one answers---any other sites better???
July 25, 2012

statistics
DOES ANYONE EVEN ANSWER THESE HOMEWORK CHECKS?I have posted 3 or 4 Q/A and no one answers---any other sites better???
July 25, 2012

statistics
Given the sample mean of GPA, the sample SD, and the SE below: SM: 3.2454 SD: 0.4635 SE: 0.0309 constructa 95% confidence interval for the population mean gpa? my answer: 3.2454+0.0309 = 3.2763-0.0.0309=1.2454
July 25, 2012

Statistics
An ESP experiment is done in which a participant guesses which of 8 cards the researcher has randomly picked, where each card is equally likely to be selected. This is repeated for 200 trials. The null hypothesis is that the subject is guessing, while the alternative is that ...
July 17, 2012

Statistics
Are you annoyed with spam e-mail? Suppose a random sample of 200 Kent State students was asked this question of which 80% said that they are annoyed. From the provided information we can find the following: sample percent = 80% (sample proportion = .80) standard deviation (S.D...
July 9, 2012

statistics
A 95 confidence interval for the proportion of men that have ever dozed off while driving is 007 to 0.14. For women, a 95% confidence intervAL for the proportion that have dozed off while driving is 0.19 to 0.25. Assume both intervals were computed using larg random samples ...
July 9, 2012

statistics
A sample of 200 students in a English class were asked- How long did you sleep last night? sample mean: 6.4 hours S.D. = 1.6 HOURS Standard Error = .11 hours sample size = 200 What type of data is used in this example? my answer: MEASUREMENT DATA What would happen to the size ...
July 9, 2012

stats
A set of LSAT scores follows the normal curve. The average is 560, and the standard deviation is 60. Find the 80th percentile.
July 7, 2012

Chemistry
What is the pH of a saturated solution of lead(II) hydroxide? The Ksp= 4.0 X 10-15. a) 4.7 b) 7.2 c) 9.0 d) 9.1 e) 9.3 What should I do to solve for this? Thank you
April 5, 2012

Chemistry 2
A saturated solution of a certain metal(II) chloride has a chloride ion concentration of 0.032M. The Ksp for this compound can be determined to be a) 2.6 X 10-7 b) 4.1 X 10-6 c) 1.6 X 10-5 d) 2.6 X 10-4 e) 1.6 X 10-2 I am unsure how to approach this problem or the steps to ...
April 5, 2012

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...
March 27, 2012

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...
March 27, 2012

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...
March 27, 2012

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the vector ...
March 27, 2012

math
4 csc 2x = 2 csc2 x tan x
March 22, 2012

Calculus
What is total volume for 36" X 2" X 2"
January 22, 2012

literature
All literature involves some kind of performance which is intended for an audience. Sometimes, however, the performative quality of a work (i.e., the fact that it is being presented to an audience) is more obvious than at others. Drama and poetry, for example, tend to ...
October 6, 2011

AU
What is probablity of 62 and probability of 59 with Mean of 60 and SD of 7
March 20, 2011

adult development psyc 307
identify and decribe the physical,conitive, and socioemotional changes that we experience during the early adult stage of development?
March 2, 2011

us history
I need help on an essay. My essay is on immigration but my teacher wants us to compare and contrast immigration from 1800's to now. HELP!
February 7, 2011

chemistry
How do I determine which of the following aqueous solutions should demonstrate the most ideal behavior? 1.0M MgSO4 or 1.0M NaCl?
February 3, 2011

microeconomics
why might a profitable motel shut down in the long run if the land on which it is located becomes extremely valuable due to surrounding economic development?
January 12, 2011

chemistry
If you have 18 g of Ag2O, how many moles do you have
December 2, 2010

chemistry
how many molecules are there in 53 g of CaO ?
December 2, 2010

chemistry
how many molecules are there in 5 moles of zinc sulfide?
December 2, 2010

geometry
Draw two parallel lines on your paper. Locate four points on the paper, each an equal distance from both lines. Describe the figure you get if you continue to locate points, eahc an equal distance from both lines.
August 10, 2010

Math B30
8+2+1/2+...(find the first 11 terms)
June 15, 2010

math B30
must be answered with a series/sequences formula over the past 10 years, the number of CD's sold by a mail order music company has increased an average of 12% per year. If the company sold 1.5 million CD's ten years ago, the total number of sales they have made over ...
June 15, 2010

math b50
i have figured out on my calculator what the answer is but the answer wont work when i use a formula.. HELP
June 15, 2010

math b50
must answered in sequences/series formulas If the profit earned by a company is $100 in the first year, and doubles each year such that the profit earned in the second year is $200, $400 in the third year and so on. Find the total profit earned by the company in 15 years of ...
June 15, 2010

statistics
There are a few steps missing from the above solution. It ended too quickly: If P(X>=a) then P(X-.5) so P(X=14-.5 or 13.5) z=13.5-9.5/2.427 = 1.65 = .9505. Since the number is more than take 1-.9505 = .0495 The answer now matches the back of the book.
February 3, 2010

college Medical coding 1
Ms. Sue, you forgot the word "highest" was also misspelled. Makes me wonder what field you are in!
February 2, 2009

Philosophy
I have to explain what suspension of belief is according to skeptics and how it comes about? I cannot find a reasonable explanation, can someone help me out? Thanks!
April 16, 2008

science
the movement of static electricity into an object is a(n)?
April 14, 2008

science
search about classification of animal
January 16, 2008

social studies
I have completed my education but can't find a job. How can I organize politically to change this situation within the norms of Canadian politics? Work to get your Native population better conditions. Always a needfull situation. What kind of job are you looking for that ...
November 23, 2006

organic chemistry
should you use decolorizing charcoal before allowing the hot solution to cool in? Explain Your answer is here. http://www.google.com/search?hl=en&lr=&ie=ISO-8859-1&q=decolorizing+charcoal&btnG=Search
November 12, 2006

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