Wednesday

December 2, 2015
Total # Posts: 44

**Chemistry**

An electron of a hydrogen atom falling from n=3 in the excited state to back to ground state gives off about 12eV. what form the "light" will it give off?
*November 7, 2015*

**Chemistry**

Is anyone able to answer this one? I am really struggling.. Identify the predominant intermolecular forces in dimethyl ether (CH3OCH3) and ethanol (C2H5OH) and predict which will have the higher boiling point.
*April 29, 2015*

**Statistics**

A simple random sample is conducted of 1486 young adults who were once college students seeking bachelor’s degrees at a specific university. The study found that 780 of these young adults actually earned bachelor’s degrees. Use a 0.05 significance level to test the ...
*April 22, 2015*

**Statistics**

A savings and loan association needs information concerning the checking account balances of its local customers. A random sample of 20 accounts was checked and yielded a mean balance of $664.14 and a standard deviation of 235.29. Assume the data is normally distributed. Find ...
*April 22, 2015*

**Statistics**

A modification is made to a computer component to try to increase its mean time between failures, which was originally 520 hours. Tests on a simple random sample of 10 modified components resulted in the following times (in hours) between failures. Assume that the sample comes...
*April 22, 2015*

**Math Check**

1.) Find 1/2([5 -2 4 0]+[14 6 -18 9]) A. [19/2 2 -7 9/2] B. [-9/2 -4 -11 9/2] C. [ 19/2 2 -7 9] D. [19 4 -14 9] My answer: C. 2.) Is it possible to find AB when you are give A= [3 2 1] and B= [2 3 0]? (this 2, 3, 0 is suppose to line up like up and down.) A. [12] B. [6 6 0] C...
*March 26, 2015*

**Math**

Solve the following system of equations. Then, write the final answer in (x, y, z) form. -12x+y-x=-20 -2x-4y+2z=10 x+2y+2z=25
*March 19, 2015*

**Chemistry Honors**

A sample of 2.0 moles of dihydrogen gas is placed in a container with a volume of 10.4 L. What is the pressure of of the gas in torr if the gas is at 25 degrees Celsius.
*February 24, 2015*

**math**

There are 17 goats in the barn. 8 goats go outside. How many are still in the barn? Use ten frames show work
*December 2, 2014*

**HISTORY**

nature I think
*April 21, 2014*

**English**

The answer is B
*November 9, 2013*

**math**

3*2-1
*November 28, 2012*

**Math**

Yes I think for the first one it is 19 out of 20 and you are correct for the second one cuz if the other cards have different numbers on them then there's a probability that you will pick dat instead of ten
*November 28, 2012*

**science**

Think about something creative and out of the box even if you nor creative what is something that you want to know in science try to figure it out make an experiment on how pop rocks pop I don't know wat grade you are in bye
*November 28, 2012*

**Math **

A man invests $5500 dollars in three accounts that pay 5%, 8%, and 9% in annual interest respectively. He has two times as much money invested at 9% as he does at 8%. If the total interest earned for the year is $449, how much is invested at 5%?
*October 26, 2012*

**Math **

A man invests $5500 dollars in three accounts that pay 5%, 8%, and 9% in annual interest respectively. He has two times as much mondy invested at 9% as he does at 8%. If the total interest earned for the year is $449, how much is invested at 5%?
*October 26, 2012*

**science DUE FIRST THING IN THE MORNING PLEASE HELP**

Condensation the water evaporated cuz of de heat and then it condensed to make tiny water droplets
*October 24, 2012*

**geometry**

A rhombus has base angles of 60 and 120. The length of each side is 16. What is the area of the rhombus?
*February 15, 2012*

**Psychology**

Using the format of an experimental write-up*, describe (and illustrate) 2 of the following 3 important Behavioral/Learning experiments: 1) Seligman’s “Learned Helplessness” experiment 2) Skinner’s “Latent Learning” experiment 3) Bandura’s ...
*January 31, 2012*

**physics**

calculate the period and frequency of a 3.500 m long pendulum at the following locations: a) the north pole, where acceleration due to gravity is 9.832 m/s^2 b) chicago, where acceleration due to gravity is 9.803 m/s^2 c) jakarta, indonesia, where acceleration due to gravity ...
*March 15, 2011*

**math**

algebra;40-20=50-_?
*March 4, 2011*

**Pre Calc**

Solve the non-linear inequality: x^3-5x^2-14x<0
*February 14, 2011*

**Pre Calc**

thanks!
*February 14, 2011*

**Pre Calc**

Solve the non-linear inequality: x^3-5x^2-14x<0
*February 14, 2011*

**8th grade science**

heey
*February 8, 2011*

**English**

what matters is on the inside not the outside
*January 23, 2011*

**Statistics and Probability**

Thank you Soo much!
*January 2, 2011*

**Statistics and Probability**

it has been estimated that about 30% of frozen chickens contain enough salmonella bacteria to cause illness if imprperly cooked. A consumer purchases 12 frozen chickens. What is the probability that the consumer will have more than 6 contaminated chickens? A) .882 B) .961 C) ....
*January 2, 2011*

**Algebra**

A 23 inch rope is cut into 4 pieces.the first piece is 3 inches longer than the other three pieces of rope .what is the length of the longest piece of rope
*August 26, 2010*

**math**

solve by factoring 6x - 5 = 6/x
*April 27, 2010*

**Math**

Simplify 5x-10/x^2-4x+4 Please help me simplify, I am at a loss. Thanks!
*April 23, 2010*

**Business**

Consider the wide spectrum of business organizations, ranging from gigantic corporations to working at home. Describe at least three types of business organizations that you are familiar with or that you would like to know more about. How is each one advantageous to the ...
*April 21, 2010*

**2nd grade**

I AM A NUMBER BETWEEN 20 AND 30.WHEN YOU PUT ME INTO 6 EQUAL GROUPS,THERE IS AN EVEN NUMBER IN EACH GROUP AND 1 IS LEFT OVER.WHAT NUMBER AM I?
*April 5, 2010*

**2nd grade**

I AM A NUMBER BETWEEN 20 AND 30.WHEN YOU PUT ME INTO 6 EQUAL GROUPS,THERE IS AN EVEN NUMBER IN EACH GROUP AND 1 IS LEFT OVER.WHAT NUMBER AM I?
*April 5, 2010*

**chemistry**

-6.18 Celcius
*January 27, 2010*

**math**

ah your right =)
*January 26, 2010*

**math**

solve. 6t + 7/ 4t - 1 = 3t +8/2t - 4
*January 26, 2010*

**english**

whose job is it to interpret the law in light constitutional safeguards
*September 10, 2009*

**science**

What part of the vertebrae provides an articulation point for the ribs?
*January 8, 2009*

**3rd grade**

yes it is correct, because when you have equal groups you can multiply, but when the groups are unequal you must add.
*November 12, 2008*

**calculus**

What does it mean to be be an inside or outside function? for example: tell which is the inside function and which is the outside: f(x)=sin3x
*October 9, 2008*

**Math/Algebra**

In a certain game, each of 5 players received a score between 0 and 100, inclusive. If their average (arithmetic mean) score was 80, what is the greatest possible number of the 5 players who could have received a score of 50? Explain. (A)None (B)One (C)Two The average is ...
*July 23, 2007*

**math**

in which order do the follownig fractions go in?3/8,2/7,4/9 arrange them this way: 2/7 ; 3/8 ; 4/9 This looks like n/(n+5) at low n, this approacthes zero (n=0) at hign n, it approaches 1 (n/n) So the order listed is from lowest to highest.
*April 30, 2007*

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