Sunday

May 29, 2016
Total # Posts: 869

**chemistry**

The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X c)12X occurs less ...
*December 2, 2010*

**patients records**

what are three ways you can ensure that you maintain standard measures of performance when you work in records management?
*November 23, 2010*

**Math question**

In a car race, there are 6 Chevrolets, 4 Fords, and 2 Pontiacs. In how many ways can the 12 cars finish if we consider only the makes of the cars?
*November 19, 2010*

**physics (work shown)**

2.52 is the total weight. Subtract weight 1 from that to get your answer.
*November 17, 2010*

**calculus**

Rice production requires both labor and capital investments in equipment and land. Suppose that if x dollars per acre aer invested in labor and y dollars per acre are investd in equpiment and land, then the yield P of rice per acre is given by the formula P = 100 times the ...
*November 16, 2010*

**math**

6(3+6x)-4=230
*November 16, 2010*

**Chem**

What volume do 3.8 x 10^22 molecules of NO2 gas occupy at STP?
*November 8, 2010*

**biology**

What’s one advantage to being eukaryotic rather than prokaryotic? What’s one advantage to being prokaryotic rather than eukaryotic?
*October 25, 2010*

**Biology (multiple choice!)**

I didn't type the subject as multiple choice, it popped up as that after I submitted it. The questions aren't multiple choice.
*October 25, 2010*

**Biology (multiple choice!)**

What’s one advantage to being eukaryotic rather than prokaryotic? What’s one advantage to being prokaryotic rather than eukaryotic?
*October 25, 2010*

**Algebra Percent ( Check + Help)?**

Yes, or you could use the "fish" method. 85*60/100=x
*October 25, 2010*

**Physics**

Two people start at the same place and walk around a circular lake in opposite directions. One walks with an angular speed of 1.10 10-3 rad/s, while the other has an angular speed of 3.90 10-3 rad/s. How long will it be before they meet?
*October 24, 2010*

**French**

thank you sooo much! :)
*October 20, 2010*

**French**

I am writing a journal in the subjonctif which is fine. except i have NO idea how to write it in the passe compose. For example, i wanted to write It is clear that she had the attention of the class..but i cannot figure out how to write in the the past (only present : il est ...
*October 20, 2010*

**physics**

a block of mass slides off the edge of a 2 foot tall table at 3.13m/sec. how far away from the edge of the table does it land?
*October 17, 2010*

**College Physics**

The drawing shows a version of the loop-the-loop trick for a small car. If the car is given an initial speed of 4.5 m/s, what is the largest value that the radius r can have if the car is to remain in contact with the circular track at all times?
*October 6, 2010*

**8th grade**

I think what she is trying to say is, 3m=8m because you have to divide 3m by 8m.
*October 5, 2010*

**math question. **

are all whole numbers real numbers?
*October 5, 2010*

**Math.. 3rd time posting /: HELP PLEASE!**

Okay.
*October 5, 2010*

**Math.. 3rd time posting /: HELP PLEASE!**

All the whole numbers are rational because they can be written as a fraction, and irrational are the ones that can't be written as fractions. I understand that part.
*October 5, 2010*

**Math.. 3rd time posting /: HELP PLEASE!**

I don't understand how to do it, that's the thing I know that 8 is a whole number, and that the square root of four is 2, and that's a whole number, and the aquare root of 49 is 7, that's a whole number too, and -3 is an interger.
*October 5, 2010*

**Math.. 3rd time posting /: HELP PLEASE!**

Tell whether each number is a real number, rational number, irrational, interger, or whole number, and then order then from least to greatest. ( Square root sign) 49, 8, -( square root sign) 4, and -3.
*October 5, 2010*

**Math, ( Help please?)!**

Tell whether each number is a real number, rational number, irrational, interger, or whole number, and then order then from least to greatest. ( Square root sign) 49, 8, -( square root sign) 4, and -3. Could someone explain to me how they found the answers to this?
*October 5, 2010*

**Math homework**

Tell whether each number is a real number, rational number, irrational, interger, or whole number, and then order then from least to greatest. ( Square root sign) 49, 8, -( square root sign) 4, and -3. Could someone explain to me how they found the answers to this?
*October 5, 2010*

**Math**

How do I evaluate the expression for.. The square root of 4? ( I don't know how to do the sign on the computer)
*October 5, 2010*

**English**

The Great Coral Reef almost circles New Zealand it has more marine life than anywhere else in the world
*October 5, 2010*

**Math**

-7.5
*October 4, 2010*

**Math**

What is the mean of these numbers? -1,-4,-5,10
*October 4, 2010*

**Math**

Ah, okay. Thank you.
*October 4, 2010*

**Math**

Inverse means the recpitile right? so like if it was 15, it'd be 15/1 x (-3/4ths) which -3/4ths is actually 4/3s? so 15/1x4/3
*October 4, 2010*

**Math**

-1 divided by -7/2? I tried this on my calculator and got a demical, my teacher want's it in fraction form though.
*October 4, 2010*

**operating system**

What is your question?
*October 4, 2010*

**Math**

Thank you!!
*October 4, 2010*

**Math**

Find the quotient Explain please!!!! -18 divided by -6
*October 4, 2010*

**Math homework**

18?
*October 4, 2010*

**Math homework**

Find the multipacative inverse of the number -18
*October 4, 2010*

**Biology (multiple choice!)**

In a symbiotic relationship between organisms of significantly different sizes, the larger organism is called the ___________, and the smaller organism is called the ___________________.
*October 4, 2010*

**Math**

Thank you!
*October 3, 2010*

**Math**

How would I simplify this? Explain please!!! 7(2x+2)-9(-1+6x)
*October 3, 2010*

**Math**

How did you get that?
*October 3, 2010*

**Math**

How would I simplify this? 2x-(9x-4)
*October 3, 2010*

**Math**

:) Thank you
*October 3, 2010*

**Math**

So for this one.. 2x+9y+6x It'd be 8x+9y?
*October 3, 2010*

**Math**

How do I simplify this expression? 2x+7+3x
*October 3, 2010*

**College Physics**

In designing rotating space stations to provide for artificial-gravity environments, one of the constraints that must be considered is motion sickness. Studies have shown that the negative effects of motion sickness begin to appear when the rotational motion is faster than ...
*October 2, 2010*

**pre algebra**

Distribute the -5. 13-3p=-15-10p Arrange the equation so all of the numbers with "P" are on the same side. 7p=-28 Divide both sides by 7. p=-4
*October 2, 2010*

**College Physics**

Got it. Thank you!
*October 2, 2010*

**College Physics**

A block is hung by a string from the inside roof of a van. When the van goes straight ahead at a speed of 29 m/s, the block hangs vertically down. But when the van maintains this same speed around an unbanked curve (radius = 135 m), the block swings toward the outside of the ...
*October 2, 2010*

**physics**

Use the equation v=sqrt(rmug) and solve for r. Then plug r into the same equation and solve for v for car b.
*October 2, 2010*

**English- Frankenstein**

If you have read Frankenstein please help me me with some review questions pertaining to chapters 17-end. 1.How does the settings in these chapters, especially nature reflect the events and character development of the chapter. 2. How are victor and his creature alike in these...
*September 30, 2010*

**How to post links**

Ohhhhh, okay. Thank you both. :)
*September 29, 2010*

**How to post links**

How do you post links on here? I tried to post one, but it didn't let me.
*September 29, 2010*

**math**

3 & 4, 30+4, 23_+ 11,
*September 29, 2010*

**ecology**

Welcome!
*September 29, 2010*

**ecology**

Coevolution :)
*September 29, 2010*

**Translation simple question**

Try google translator, I'd post a link but it isn't letting me.. Soo.. just google google translater, it's really good!
*September 29, 2010*

**math**

Oh shoot! I read the problem wrong, what Ms.Sue said!
*September 29, 2010*

**math**

2, 8, 9.
*September 29, 2010*

**Not complete**

Your question needs to be more complete, we cannot help you, need more info, then we will try to help you.
*September 29, 2010*

**About the website**

I see, I see. :)
*September 29, 2010*

**About the website**

Does it matter how old you are? Because my daughter may want to help out.
*September 29, 2010*

**About the website**

Thank you very much, you both!
*September 29, 2010*

**About the website**

Is there anyway you can apply to be a tutor on here?
*September 29, 2010*

**physics**

A 5.10 kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.450. Determine the kinetic frictional force that acts on the box for each of the following cases. (a) The elevator is stationary. (b) The...
*September 20, 2010*

**math**

i'm trying to help my neice out, and i'm a little rusty here.... R(r1+r2)=r1r2
*September 20, 2010*

**Physics**

thanks...got the right answer!
*September 20, 2010*

**Math.. sorry for posting so many, I just don't get**

Let W repersent the width of a rectangle, the length is 7cm more then the width A. 7cm more than four times the width How do I write that into an algebraic expression?
*September 15, 2010*

**Math**

How would I write an algebra expression if You let Zog's Age repersent the letter A. Question: Nine times Zog's Age four years ago.
*September 15, 2010*

**math**

Let A repersent Zog's age. Write a algebraic expression for each phrase. How would I write one if: 9 times the sum of Zog's age and 4 years?
*September 15, 2010*

**Math**

Evaluate for A=7 B=2 6ab would I do 6x7x2?
*September 15, 2010*

**10th grade math**

?... what's that supposed to be?~
*September 13, 2010*

**10th grade math**

Number of pages of a 5 page articile left to read if you read p pages.
*September 13, 2010*

**10th grade math**

Which expression repeersents the phrase'' twice the quotient of 50 and the sum of a number y and 8?''
*September 13, 2010*

**computers**

an introduction to programming and visual basic 2008 page 39 programming challenges rules form design and flowchart for #3 sales tax. how do i do this?
*August 30, 2010*

**Statistics**

63.4 65.0 64.4 63.3 54.8 64.5 60.8 49.1 51.0 Assume that these observations are an SRS from the late Cretaceous atmosphere. What is the mean percent of nitrogen in ancient air with a 90% confidence level? Hint: uses one-sample t confidence
*August 21, 2010*

**algebra**

This is actually part of a statistics problem I'm working but I forgot how to do this and if someone can refresh my memory, I might be able to solve these. The problem is with factorials. 20! / 5! (20-5)! I know I can reduce and cancel, but how and where? If I do 20! / 5...
*August 4, 2010*

**Statistics**

Many women take oral contraceptives to prevent pregnancy. Under ideal conditions, 1% will become pregnant within one year. In typcal use, 5% become pregnant. Choose 20 random women taking the pill. How many become pregnant in the next year? a. What is the probability that at ...
*August 4, 2010*

**substitution method**

x=8-4y,3x+5y=3
*July 20, 2010*

**english**

thank you so much
*June 20, 2010*

**english**

Financial planning will seem easier with a good education.
*June 20, 2010*

**english**

I am confident that my education will make financial planning easier to understand
*June 20, 2010*

**english**

can someone answer my question without sarcasm? Or even answer it? I need help writing a sentence with a linking verb. it has to be about the role of education in sucessful financial planning
*June 20, 2010*

**english**

I need two sentences about the role of education in successful financial planning using a linking verb in one and subject-verb agreement in another. Please highlight the verbs
*June 20, 2010*

**writing**

I need a sentence about the role of educatin in successful financial planning using a linking verb (put in bold) and another one using the subject verb aggreement
*June 20, 2010*

**chem**

57.3 qts how many 25ml vials can they fill ( round to the nearest full vial
*June 18, 2010*

**chem**

eon is 1 billion yrs (1x10^9)how long is this in min Assume 1 year=365.25 days
*June 18, 2010*

**college**

Thank you Damon!!!
*June 18, 2010*

**college**

12.2 ft/sec how many days will it take to complete its journey with the circumference of the earth is 25000 miles. How do i work this problem out dont want the answer just want to know how to solve it!
*June 18, 2010*

**college**

I need a subject verb sentence for about the roll in of education in successful financial planning
*June 18, 2010*

**Math**

What is the minimum, lower quartile, upper quartile, maximum of these numbers? 45 52 52 68 71 71 75 77 82 84 89 90 90 94 96
*June 10, 2010*

**Math**

I did what mrs sue posted and i got a desmo answer.. is that right?
*June 8, 2010*

**Math**

klogg weighs 170 lb. He is loading a freight elevator with identical 69-pound boxes. The elevator can carry no more then 2000lb. If klogg rides up with the boxes how many boxes can be loaded on the elevator?
*June 8, 2010*

**HCR/210**

consider how you think records management procedures have had to respond to this piece of legislation.
*April 23, 2010*

**psychology**

Consider that you are having an informative discussion with your adolescent child about sex. Your goal is to explain to your child that sexual arousal is a normal sensation attributed to the brain, neurochemicals, and sex hormones all working together. Describe, in language ...
*April 23, 2010*

**math**

runner A runs 5.6 miles/hr so it will take him 4.68 hrs to run the marathon. runner B runs 6.4 miles/hr so it will take 4.09 hrs to run the marathon however runner B started half and hour later than runner A 4.68 - .5 = 4.18 so runner B will finish the marathon .09hrs before ...
*April 7, 2010*

**chemistry**

if 2.0 x 10-5 mol of sparingly soluble Cu(IO3)2 can dissolve in 2L of a very soluble NaIO3 sol'n, what is the molar concentration of the NaIO3 sol'n? (Ksp=1.4x10-5 for Cu(IO3)2)
*April 7, 2010*

**chemistry**

pH = -log[H] pH = -log[0.0001] pH = 4
*April 7, 2010*

**math**

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?
*April 6, 2010*

**math**

how many liters of water must be added to 30 liters of a 20% alcohol solution to dilute it to a 15% solution?
*April 6, 2010*

**Probability/Stas**

An instant lottery gives you probability of 0.023 of winning on any one play, which are independent of each other. If you play 6 times, the probability that you win on none of your plays is: The answer is suppose to be .8902, but I got 0.895. I took 0.23 to the 6th power and ...
*March 30, 2010*