Wednesday

February 10, 2016
Total # Posts: 63

**chemistry - HELP!**

The equilibrium constant, Kc, for the reaction A(g) + B(g) <-->AB(g) is 115 at 25 degrees C. If 1.580 x 10^(‐1) mol of A and 4.721 x 10^(‐5) mol of B are introduced into a 1.00 liter vessel at 25 degrees C, calculate the equilibrium concentration of all ...
*October 11, 2015*

**physics**

A hang glider pilot is flying horizontally over an open field when her shoe falls off. She was going 23.0 m/s and was 81.0 m above the ground. How long did it take for the shoe to hit the ground?
*October 8, 2015*

**Math**

Sum of 3/4 + 1/3 _ _ 8 4 Simplest form
*September 24, 2015*

**Math**

If you save 1/5 of your allowance and spend 2/3 how much is left?
*September 24, 2015*

**genetics**

why are there not many clinical studies done on rare diseases such as Batten disease?
*April 13, 2015*

**spanish 3**

I need help understanding how to answer a question for example like Escribe el pronombre para este adjetivo y sustantivo. I'm having trobule understanding what it wants me to do and how do do it.
*March 4, 2015*

**math**

Yes the answer is he can cut the board into 6 pieces. All you have to do is use a fraction grid, then see how many 1/8's goes into 3/4s.
*March 3, 2015*

**spanish 3**

Escribe unas frases hablando de las cosas en tu vida o en tu familia. Usa los adjetivos demostrativos (este, ese, aquel) y luego escribe esas oraciones de nuevo, la segunda vez, usando los pronombres en vez de los adjetivos + sustantivos. Escribe por lo menos diez oraciones ...
*February 20, 2015*

**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*

**Chemistry**

0.05
*February 2, 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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