# Posts by kate

Total # Posts: 2,023

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....

write the following number as a percent. 1/200

oh thank you very much!!!

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%?

write the following number as a percent. 6 1/2

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)?

MATH
If a boy has 72 inches of copper wire and 42 inches of steel wire would you use factor or multiples?

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?

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

Biololgy
how and why will boiling affect an inorganic catalyst differently than an organic catalyst

math
thank you very much!!! :)

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

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.

math
thank you very much!!! :)

math
what is 2 ÷ 1/2?

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

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 ...

English, Critical Thinking Part 2
Okay, I have my definition. Now I need help with discussing the ideology in the article.

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.

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.

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.

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 ...

math
Ashton broke apart a number into 30 + 7. What number did he start with?

math
Ashton broke apart a number into 30 + 7. What number did he start with?

math
Ashton broke apart a number into 30 + 7. What number did he start with?

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...

what is 1/3 of 3/2? is that means multiply??? or devide???

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

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!

thanks :)

isn't it B?

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

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:???

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?

math
200 + 350= 80 + 30 =

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...

math
yes

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

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

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...

statistics
Got it! Thanks!!

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!

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

English
Is their grammatical error with this sentence?

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!!!

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.

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.

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 ...

algebra
Determine which one of the following values of x is not a soluton of the inequality 0<x+5/6<2.

algebra
Solve the inequlity x^2>16 and give the answer in interval notation.

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

math
3.5x10 to the 3rd 9.82x10 to the 6th

math
1st tell us what you think it is

yes i would agree that is would be less than since he rounded down for both

1.50.but can you explain more detailed about the 0.2 thingy.

20 cents. but what if the next number is 1.5.Then how will i solve it.

but why is 2.0 bigger than 0.15?

but why is 2.0 bigger than 0.15?

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?

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?

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.

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?

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

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

comm 100
I would agree with 2 the definition of ambigious seems to agree with choice 2, as well. Hope that helps!

Math
12/4= 3/1 4/12=1/3

communications100
I would say 1 or 3

algebra
Multiply across to get 16/3 a negative multiplied by a positive=a negative =-16/3 or 5 1/3

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

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?

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?

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?

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

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

spail sheet
what is the fist anwer.

let x=number of kids 1/2 times x times 7 plus x times 3=1625

algebra
16540=2500 using an algebrac equation problem what is x

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...

Precalculus
Thanks reiny! But one question how do you know when to use the triangle method and when to use parallelogram?

math
Thanks for answering! and yes i think there is an error in the question

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

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?

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

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.

biology
from the phenotype of the kernals on each P generation cob what would the predicted genotype of any F1 plant be?

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

maths
simplify 12-1/9 /4/3+(1/2)^2

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?

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?

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?

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?

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?

Math
y=-x^2+1.5x+2 Find the maximum value.

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?

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

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.

Math
Simplify: (3x+5)^3-3x(x^2-1)

Math
If f(x)=5x+2 and g(x)=x^2+3, then what is f(g(x))?

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

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