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August 20, 2014

Posts by graciela


Total # Posts: 27

chemistry121
What mass of silver chloride can be produced from 1.25 L of a 0.264 M solution of silver nitrate?
October 19, 2011

chemistry121
What mass of silver chloride can be produced from 1.25 L of a 0.264 M solution of silver nitrate?
October 19, 2011

chemistry
what is the formula of a pumpkin?
September 19, 2011

Chemistry
Is the mass of the lead 3.4 x 10^(-22) or literally 3.4 x 10 - 22 or just 22g? The problem has given you volume and density. D = mass/ volume You're trying to find mass, so your equation's going to be m= dv m= 15. 82 g Divide this by whatever your mass was, either 3.4 ...
March 7, 2011

Statistics
True or False 1. Chi square tests of independence and homogeneity are both usually right-tailed tests. 2. A chi square goodness-of-fit test is appropriate for determining whether a random number generator is truly random.
March 7, 2011

Statistics
A fair 20-sided die is rolled 60 times, and the value of chi-square is computed using expected counts of 3 for each face. If this process is repeated many times, the shape of the distribution of the values of chi-square should be... A uniform B bimodal C skewed left D skewed ...
March 6, 2011

math
It really just depends. It could be a lot of differen things: 4/2, 6/3, 8/4, e.t.c It just depends on what you want to make it compatible with. For example, say you had 2 + (7/8). You would need to put that 2 into a fraction with a denominator of 8. You would multiply 2 by 8 ...
March 3, 2011

Stats (Chi-Square)
Suppose you have a chi-squars GOF test to test null hypothesis that the age distribution of drivers stopped in 2003 for traffic violations is the same as the age distr. in 2002. You compute chi-square= 14.7. At the 5% significance level, what is an appropriate conclusion? A p-...
March 3, 2011

math
You can set up an equation: 30%= .3, so you'll have .3x= 120 (where x is the number whose 30% is 120) x= 120/.3 x= 400 You can check by multiply .3 x 400= 120 So 30% of 400 is 120
March 2, 2011

math
21% of 82
January 5, 2011

geometry
find the difference between the volume of the cylinder 3-in radius, long 7 and the volume of the rectangular long 8-in wide 5-in and 4-in.round your answer to the nearest cubic inch.
August 18, 2010

geometry
find the height of the 32-inch tv screen shown below. round your answer to the nearent tenth of an inch.
August 18, 2010

math
two cars leave town at the same time. one travels west at 56 mph, and the other travels south at 42 mph. after one hour, how far apart are the cars?
August 18, 2010

math
a driver drove 50 miles in 50 minutes. how many miles per hour was he driving?
August 18, 2010

math
a driver drove 50 miles in 50 minutes. how many miles per hour was he driving?
August 18, 2010

math
together two computers cost $2700 per year to rent. if one costs twice as much as the other, what is the monthly cost of the most expensive one?
August 18, 2010

math
on the illinois state tax form, numbers are to be rounded to the nearest dollar. if heather earned $8265.53 at her part-time job, what number would she enter on the form for earmings?
August 18, 2010

geometry
how many inches long is the radius of the largest circle that can fit inside a rectangle 18 inches long and 12 inches wide?
August 18, 2010

geometry
how many inches long is the radius of the largest circle that can fit inside a rectangle 18 inches long and 12 inches wide? An 84-cm wire is cut into three pieces. the second piece is 4 cm longer than the first piece and the third piece is twice as long as the second piece. ...
August 18, 2010

AP Math
What pattern do you see in the set of numbers 2,7,12,20
April 29, 2010

Lifeskills
What is the the salary for this job? What are the requirements? How much schooling do you need or training? How dangerous is this job? What types of equipment is needed to be successful in this job?
April 29, 2010

word study
shout is to mouth ou sound
April 29, 2010

Math
input: +3 Output -60
April 29, 2010

1301 Education
The meaning of 3 S to a T
December 2, 2008

math
8(x+2)-4x +7 I need help! multiply the parenthsis 8x + 16-4x +7 then combine the x terms, and combine the number terms. the answer to this problem is 4x+23
November 1, 2006

math ( help)
Gli bought 9 cds.some of them cost $12.75, and the rest cost $11.95. the total was $112.35. how many did he buy at each price? Let E be the expensive, and C the cheaper. E+C=9 E(12.75) + C (11.95)=112.35 the answer to your math problem is 6 cds for 12.75 and 3 cds for 11.95
November 1, 2006

news homework
(Help!) In want wed should i go to . to find the news? Graciela, are you looking for a News Website? If so, here are a couple: www.msnbc.msn.com/ www.usnews.com/ GuruBlue," Thank you so much!" thanks a lot!!!!!!!!!
October 29, 2006

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