Friday

November 28, 2014

November 28, 2014

Total # Posts: 1,712

**Chemistry**

To find the molarity of a solution the equation is: molarity = (moles of solute)/(volume in Liters (this is important you must convert any other volume to liters)) a)0.175 mol ZnCl2 in exactly 150 mL solution. First note that 150ml = .150 L solution Set up the equation M = (0....
*October 31, 2011*

**6th grade math**

write the following number as a percent. 1/200
*October 30, 2011*

**6th grade math**

oh thank you very much!!!
*October 30, 2011*

**6th grade math**

what if 3 2/5??? should I change the mixed number to a improper fraction by multipling the 3x5=15 then add 15+2=17, then 17/5 as the improper fraction. Then convert 17/5 = ?/100, divide 5 into 100 =20. then multiply 17x20=340. So the percent is 340%?
*October 30, 2011*

**6th grade math**

write the following number as a percent. 6 1/2
*October 30, 2011*

**math**

The area of a rectangular floor is 72 ft2. The length of the floor is 1 ft more than 3 times the width. How wide is the floor (rounded to the nearest whole number)?
*October 19, 2011*

**MATH**

If a boy has 72 inches of copper wire and 42 inches of steel wire would you use factor or multiples?
*October 18, 2011*

**college algebra**

how long will it take an investment of $5000 to grow to $8000 if it is invested at 7.8% per year compounded weekly?
*October 15, 2011*

**english**

How do I cite an in- text citation in mla format that has more than 3 authors do I list all the authors and how will this ciation appear in my work cited page
*October 12, 2011*

**Biololgy**

how and why will boiling affect an inorganic catalyst differently than an organic catalyst
*October 12, 2011*

**math**

thank you very much!!! :)
*October 9, 2011*

**math**

calculate 2/3 ÷ 1/2. In your own words, describe how the quotient of two fractions can be calculated.
*October 9, 2011*

**math**

A common error to think that since 5/3 - 4/3 = 1/3, the quotient 5/3 ÷ 4/3 is equal to 1 1/3. Explain why this is incorrect.
*October 9, 2011*

**math**

thank you very much!!! :)
*October 9, 2011*

**math**

what is 2 ÷ 1/2?
*October 9, 2011*

**I need more HELP!**

Please look at the acticle in the Critical Thinking post about Stiglitz and then answer the question. Also look at my above attempt and provide feedback. Thank you
*October 9, 2011*

**English, Critical Thinking Part 2**

Okay, here's what I came up with by breaking the argument down: Prmise 1: All people posses self interest and are dependent on each other. Premise 2: The top 1% posses a high self interest. Conclusion: Thus the top 1% are dependent on the other 99%. Therefore the ideology ...
*October 9, 2011*

**English, Critical Thinking Part 2**

Okay, I have my definition. Now I need help with discussing the ideology in the article.
*October 9, 2011*

**English, Critical Thinking Part 2**

This is regarding the same article by Stiglitz. Define and discuss the term "ideology" as related to the article. Explain the ideology in the article.
*October 9, 2011*

**I need more HELP!**

I need someone to actually read the article and attempt to answer my question. I already know the approach to writing but need input.
*October 9, 2011*

**English, Critical Thinking**

I already have a handout on fallacies. I can't identify them in the article. Please read the article. I agree with the author's argument but have to look for discrepencies.
*October 9, 2011*

**English, Critical Thinking**

PLEASE HELP. I have this essay due tomorrow. I need help with the following: I have to critique the following article and write an essay. But first I need help identifyine Fallacies and the Types of evidence present. Then state whether or not his arguement is compelling. Its ...
*October 9, 2011*

**math**

Ashton broke apart a number into 30 + 7. What number did he start with?
*October 3, 2011*

**math**

Ashton broke apart a number into 30 + 7. What number did he start with?
*October 3, 2011*

**math**

Ashton broke apart a number into 30 + 7. What number did he start with?
*October 3, 2011*

**physics**

a superball of mass .125 kg is dropped onto a concrete floor from a height of 1m it bounces back at a height of .9m. What is the net force acting on the ball before and after its released? Work done by the net force while the ball is falling until just before it hits the floor...
*October 1, 2011*

**6th grade math**

what is 1/3 of 3/2? is that means multiply??? or devide???
*September 29, 2011*

**physics**

If a race car completes a 2.8 mi oval track in 41 s, what is its average speed? Answer in units of mi/h
*September 29, 2011*

**Book Summary**

In the book: "A Tale of Two Cities"; in book one chapter one "The Period". What is that chapter taliking about it is really confusing. You don't really meet any characters yet. HELP PLEASE!
*September 25, 2011*

**6th grade math**

thanks :)
*September 25, 2011*

**6th grade math**

isn't it B?
*September 25, 2011*

**6th grade math**

Chan drove for X miles at 45 miles an hour, Y miles at 60 miles an hour, and Z miles at 55 miles an hour. Which expression can be used to find the total numbers of hours that Chan drove? A. (45+60+55)(XYZ) B. 45X + 60Y + 55Z C. (45+60+55)/XYZ D. X/45 + Y/60 + Z/55
*September 25, 2011*

**6th grade math**

Ye Olde Toy Shoppe wants a set of toys: 1/4 of the toys should be blue, and 1/2 of the toys should be green. 2/3 of the toys should be giraffes, and 1/4 of the toys should be monkeys. Decription:???
*September 24, 2011*

**Precalculus**

Instead of graphing the arc length against the height, Olivia decides to make graphs of Paul's x - and y - coordinates against time. Suppose paul walks 1 meter per second. How would Olivia's graph compare to her graph of arc length against the height?
*September 22, 2011*

**math**

200 + 350= 80 + 30 =
*September 22, 2011*

**Dynamics**

Problem 13.185 A 9.13 kg sphere A of radius 90 mm moving with a velocity magnitude v(0)= 2 m/s strikes a 830 g sphere B of radius 40 mm which is hanging from an inextensible cord and is initially at rest. Sphere B swings to a maximum height h after impact. Determine the range...
*September 22, 2011*

**physics**

jason drives due west with a speed of 35.0 mi/h for 30.0 min, then continues in the same direction at 60 mi/h for 2.00 hrs, then farther west at 25 mi/h for 10.00 minutes, What is Jason's average velocity
*September 21, 2011*

**physics**

jason drives due west with a speed of 35.0 mi/h for 30.0 min, then continues in the same direction at 60 mi/h for 2.00 hrs, then farther west at 25 mi/h for 10.00 minutes, What is Jason's average velocity
*September 21, 2011*

**Dynamics**

Fundamental Problem 15.12 The cannon and support without a projectile have a mass of 250 kg. If a 20 kg projectile is fired from the cannon with a velocity of 400 m/s , measured relative to the cannon, determine the speed of the projectile as it leaves the barrel of the cannon...
*September 21, 2011*

**statistics**

Got it! Thanks!!
*September 20, 2011*

**statistics**

My stats book wasn't very helpful in the teaching of this. I'm not really sure how to do it, so if you could teach me some EASIER methods, I would greatly appreciate it!
*September 20, 2011*

**statistics**

# A stoplight at the corner of Lincolnway and Duff Avenue is red 20% of the time. For someone who drives through this stoplight 10 times a week, what is the probability that they will stop at least three times? a: .201 b: .771 c: .878 d: .322
*September 20, 2011*

**English**

Is their grammatical error with this sentence?
*September 19, 2011*

**English**

I'm not so good with English would you please help me Wood frame houses are caught fire. Clothing bursts into flame and people suffered intense third-degree flash burns over their exposed flesh. Which do you think is incorrect? Please!!!
*September 19, 2011*

**English**

Choose the one that is not correct Wood frame house are caught fire. Clothing burst into flame and people suffer intense third-degree flash burns over their exposed flesh.
*September 19, 2011*

**6th grade math**

a dog can run as fast as 39.35 miles per hour.without calculating,would about 12,14,or 16 be a reasonable answer for the number of miles a dog could run at this rate in 0.4 hour?Explain your reasoning.
*September 18, 2011*

**Math-Problem of the Week**

There are 32 teams in the NFL. 16 of them are in the AFL. The other 16 are in the NFC. At the beginning of the season Julia tried to predict the teams that would be in each Conference championship by randomly drawing 4 teams (2 AFC teaams and 2 NFC teams) from 2 hats. What is ...
*September 18, 2011*

**algebra**

Determine which one of the following values of x is not a soluton of the inequality 0<x+5/6<2.
*September 18, 2011*

**algebra**

Solve the inequlity x^2>16 and give the answer in interval notation.
*September 18, 2011*

**Math**

1. turn them into improper fraction 9 2/3= 29/3 3 5/6= 23/6 2. convert each to the same denominator= 58/6-23/6 you should be able to figure it out from there then simplify if possible
*September 15, 2011*

**math**

3.5x10 to the 3rd 9.82x10 to the 6th
*September 15, 2011*

**math**

1st tell us what you think it is
*September 15, 2011*

**4th grade math help!**

yes i would agree that is would be less than since he rounded down for both
*September 15, 2011*

**6th grade math**

1.50.but can you explain more detailed about the 0.2 thingy.
*September 15, 2011*

**6th grade math**

20 cents. but what if the next number is 1.5.Then how will i solve it.
*September 15, 2011*

**6th grade math**

but why is 2.0 bigger than 0.15?
*September 15, 2011*

**6th grade math**

but why is 2.0 bigger than 0.15?
*September 15, 2011*

**6th grade math**

sally's pencil is 15 hundredths of a meter long(0.15).Edward's pencil is 2 tenths a meter long(0.2).whose pencil is longer?
*September 15, 2011*

**statistics**

Lubbock, Texas ran a survey and determined that 27% of all households subscribed to the daily paper, 32% watched the evening news, and 9% did both. If a household is chosen at random, what is the probability that the evening paper was received or the news was watched?
*September 15, 2011*

**statistics**

An office has 8 secretaries and 5 computer operators. If one employee is picked at random, find the probability that it will be a secretary.
*September 15, 2011*

**statistics**

If a card is drawn at random from a deck of 52, what is the probability that it is an ace or a heart?
*September 15, 2011*

**statistics**

37% of all doctors are family practitioners. If four doctors are picked at random, what is the probability that all four are family practitioners? a.1.48 b.0.0187 c. 0.0168 d. .1369
*September 15, 2011*

**maths**

I apologize but the onnly way I can currently think of involves algebra if you would like to know it let me know. :)
*September 10, 2011*

**comm 100**

I would agree with 2 the definition of ambigious seems to agree with choice 2, as well. Hope that helps!
*September 9, 2011*

**Math**

12/4= 3/1 4/12=1/3
*September 9, 2011*

**communications100 **

I would say 1 or 3
*September 9, 2011*

**algebra**

Multiply across to get 16/3 a negative multiplied by a positive=a negative =-16/3 or 5 1/3
*September 9, 2011*

**8th grade math**

Like Ms. Sue showed, you need to combine like terms. 3n-5n=-2n -7+1=-6 You cannot combine -2n and -6 so the answer would be -2n-6. -2n-6
*September 9, 2011*

**6th grade math**

A resturant manager wants to order new glasses. The ratio of the number of water glasses to the number of juice glasses in the resturant is 15 to 2. How many juice glasses did the resturant manager order if she ordered 180 water glasses?
*September 8, 2011*

**Biology Help!!**

Estimates of the quantity of water required in the production of a pound, or Kg, of beef range from _______________ to __________________. What do you think is the most reasonable estimate of the quantity of water needed to yield a Kg. of edible beef - and why?
*September 7, 2011*

**Biology Help!!**

Estimates of the quantity of water required in the production of a pound, or Kg, of beef range from _______________ to __________________. What do you think is the most reasonable estimate of the quantity of water needed to yield a Kg. of edible beef - and why?
*September 7, 2011*

**3rd grade math**

You could add the 2 numbers she broke it down into to get the answer. 30+7=37 37
*September 6, 2011*

**math (please help)**

f(x)=-(x-1/2)^2(x+1) How to find the y-intercept of the function?
*September 5, 2011*

**spail sheet**

what is the fist anwer.
*August 30, 2011*

**6th grade math**

let x=number of kids 1/2 times x times 7 plus x times 3=1625
*August 24, 2011*

**algebra**

16540=2500 using an algebrac equation problem what is x
*August 12, 2011*

**Precalculus**

A discus is thrown from a height of 3 feet with an initial velocity of 55 ft/s at an angle of 44° with the horizontal. How long will it take for the discus to reach the ground? I started off with 55cos(44)=40 then I made an equation 40t-16(t)=2.5 seconds? I feel like I did...
*August 9, 2011*

**Precalculus**

Thanks reiny! But one question how do you know when to use the triangle method and when to use parallelogram?
*August 9, 2011*

**math**

Thanks for answering! and yes i think there is an error in the question
*August 8, 2011*

**math**

Find cos x if sin x cot x = 4. I got 4 but isnt it impossible for cos to equal 4? Isnt it only supposed to range from -1 to 1? the answer choices are 1)4 2)2 3)1 4)sqrt 2
*August 8, 2011*

**math**

So i need to figure out what the angle and speed was of a foot ball that traveled 59 yards how can i figure that out? what formula can i use?
*August 8, 2011*

**physics**

which of the following is there no net work? A car accelerates down a hill. A car travels at constant speed on a flat road. A car decelerates on a flat road. A car decelerates as it travels up a hill. I say its the first one
*August 6, 2011*

**Math-please help!!**

Normally, the first 3 key points of a sine curve are (0,0), (90,1), and (180,0). If the function is changed to y=-2sin(3x-120)+5, the key points given above change to... Please explain this to me so that I can do it myself.
*August 4, 2011*

**biology**

from the phenotype of the kernals on each P generation cob what would the predicted genotype of any F1 plant be?
*August 3, 2011*

**biology**

Based on what you know about phenotypes and figure 2 for the p generation what is the corn plant genotype on each cob containing the P corn kernals
*August 3, 2011*

**maths**

simplify 12-1/9 /4/3+(1/2)^2
*August 3, 2011*

**Math**

How long will it take for a 1 g sample of Polonium 210 to lose all but 1/28 of its radioactivity if the half-life is 140 d?
*August 1, 2011*

**Math**

How long will it take for a 1 g sample of Polonium 210 to lose all but 1/28 of its radioactivity if the half-life is 140 d?
*August 1, 2011*

**Math**

In a recent dig, a human skeleton was unearthed. It was later found that the amount of 14C in it had decayed to (1/rt8) of its original amount. If 14C has a half life of 5760 years,how old was the skeleton?
*August 1, 2011*

**Math**

In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of this radium will the hospital have in the year 6836 if the half-life of radium is 1620 years?
*August 1, 2011*

**Math**

In 1976 a research hospital bought half a gram of radium for cancer research. Assuming the hospital is still exists, how much of this radium will the hospital have in the year 6836 if the half-life of radium is 1620 years?
*July 31, 2011*

**Math**

y=-x^2+1.5x+2 Find the maximum value.
*July 31, 2011*

**Math**

What are some examples of exponential function (Using the formula: Al = A0(1/2)^t/h ), trig functions that are used to find amplitude, period, max, min etc., and combinations of transformation at home or in life in general?
*July 30, 2011*

**Math**

Use the information provided to write the vertex form equation of each parabola. a)y + 60x + 294 = -3x^2 b)−(y+1) = (x−4)^2
*July 27, 2011*

**Math**

A piece of cardboard has a length of 60cm and a width of 40cm. In order to make the cardboard into an open box, a box with no lid), a piece of length x must be cut out of each corner. Write an equation to represent each dimension of the box.
*July 26, 2011*

**Math**

Simplify: (3x+5)^3-3x(x^2-1)
*July 26, 2011*

**Math**

If f(x)=5x+2 and g(x)=x^2+3, then what is f(g(x))?
*July 25, 2011*

**Math**

Which of the following is a solution to the trigonometric equation 2cos2 x - 5cos x + 2 = 0? A) 240 degrees B) 135 degrees C) 270 degrees D) 90 degrees
*July 23, 2011*

**Math**

Identify the period in degrees and radians: y = sin2x: y = cos(3/2)x: y = 2sin(1/2)x: y = 1.5cos0.25x:
*July 23, 2011*

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