Friday
July 25, 2014

Posts by TIFFANY


Total # Posts: 800

General Education
I said that I chose D above.

General Education
Only circus animals with a clean bill of health will perform in today’s exhibition. A monkey, a poodle, and a horse will perform in today’s exhibition. No circus animals with a clean bill of health were prescribed medications this week. If the statements above are tr...

General Education
Memmie: The greater the population near a restaurant, the more potential customers it has and the greater chance its popularity will spread through word-of-mouth. O’Sullivans Restaurant just opened in the very densely populated town of Redville, so its chances for success...

General Education
Thank you very much!!

General Education
<11{2[3(02)26]}> Aron: The two double A batteries in my CD player are dead, so the CD player doesn’t work. My television remote control, which also uses two double A batteries, works fine. So if I move the two batteries from my television remote control to my CD pla...

probability and statistics
Suppose every student in your class got a score of 85% on an exam. What are the mean and standard deviation of those exam scores without doing any calculations? I want to say the mean is 100 and the standard deviation is 1 but I don't know why. If all students scored 85% t...

Physics
Josh starts his sled at the top of a 3.0m high hill that has a constant slope of 25 degrees. After reaching the bottom, he slides across a horizontal patch of snow. The hill is frictionless but the coefficient of kinetic friction between his sled and the snow is .05. How far f...

Numer Theory
1+2+3+...+n=(1+n)+(2+(n-1))+(3+(n-2))+... =(1+n)+(1+n)+(1+n)+... How many copies of n+1 are in there in the second line? with n=6 and n=7

SCI 275
I just did this. Talk about asbestos !!!!!

psychology
Can someone give me an example of correlation and causation.

Chemistry
Thanks for your help. Sorry, I accidentally posted the question again without meaning to.

Chemistry
The problem is: Calculate the standard free-energy change for the following reaction at 25 degrees Celsius. 2Au^+3(aq) + 3Cr(s)-> 2Au(s) + 3Cr^+2(aq) I worked it out, getting half reaction: Au^3+ + 3e- -> Au; E = 1.498 Cr^3+ + 3e- -> Cr; E = -0.74 Ecell = 1.498 - (-0....

General Chemistry
Thanks for your help! I got it now. I messed up with second half reaction, it was supposed to be Cr^2+ + 2e- -> Cr; E = -0.91.

General Chemistry
The problem is: Calculate the standard free-energy change for the following reaction at 25 degrees Celsius. 2Au^+3(aq) + 3Cr(s)-> 2Au(s) + 3Cr^+2(aq) I worked it out, getting half reaction: Au^3+ + 3e- -> Au; E = 1.498 Cr^3+ + 3e- -> Cr; E = -0.74 Ecell = 1.498 - (-0....

economics
Do you feel there are any imbalances to our wage structure in our economy?

statistics
a resturant must choose 5 employees from 12 applicants. in how many ways can they do that?

statistics
a machine has 0.04 probability of producing a defective item. If it produces 6 items find: a. probability none is defective b. at least one is defective c. all are defective

statistics
a quiz had 6 questions, each with 4 possible answers (only one of which is correct). If you answer them at random, find the probability that all are correct and at least one is wrong.

Chemistry
Calculate the total heat energy needed to convert 110g of ice at -10°C to steam at 110°C..?

Research and Statistics
Explain how to accept and reject the null? How to identify the null and alternative hypothesis for t-tests in both statistical and experimental hypothesis?

College Algebra
solve by the the substitution method 8x+9y=-39

Social Studies (History)
What changes in society occurred as a result of the Industrial Age?

5TH GRADE MATH PLEASE HELP
Draw an equation or function table. The cost of shipping mittens purchased online is $2 plus $6 for each of pair of mittens. What is the total cost of buying 5 pairs? P = pair of mittens. Can you please help me with this problem?

5th grade math
Draw an equation or function table. The cost of shipping mittens purchased online is $2 plus $6 for each of pair of mittens. What is the total cost of buying 5 pairs? P = pair of mittens. Can you please help me with this problem?

science... PLEASE HELP!
Within which group would all members show the greatest similarities: Phylum kingdom genus Or species?

Social studies (History)
What are three good questions to ask a student to see if they understand the Reconstruction era?

Business Math
What is the compound interest on the previous investment?

Math question
Thank you Ms.Sue

Math question
6yz?

Math question
y + 2y + 3z?

Math question
5x + 2(x + 6) 7x + 6 7x*2 + 12 7x + 12 7x (x+6)

Social Stydies (History)
Correction: How did the Civil War start the Reconstruction era?

Social Stydies (History)
What happened that started the creation of the Reconstruction era? I believe it was the Civil War, but I do not know if there was anymore situations that started it. And if not how did the Civil War start the War? Please help!

History
What are some positives and negatives results from the reconstruction era?

Social Studies (History)
What does it mean by "Uplift America's urban poor"?

Calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. Between y = x^2 − 4x + 1 and y = −x^2 + 4x − 5 for x in [0, 3] Please don&#...

Calculus
the answer wasn't correct and I tried to do it myself and it is not working

Calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. Enclosed by y = x and y = x^4

Calculus
Evaluate the integral. HINT [Use a shortcut or see Example 4.] 4 to 3 x/(3x^2-6)dx

Calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. HINT [See Example 3.] Enclosed by y = x and y = x^4

Calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. (Round your answer to three decimal places.) Between y = e^x and y = x for x in [1, 2]

Calculus
thank you so much

Calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. Enclosed by y = x^2 − 4x + 1 and y = −x^2 + 4x − 5

Calculus
Find the area of the indicated region. We suggest you graph the curves to check whether one is above the other or whether they cross, and that you use technology to check your answer. Enclosed by y = x^2 − 4x + 1 and y = −x^2 + 4x − 5

Science
Which mineral property is the best way to tell the difference between each type of mineral?

Science
Which mineral property test is the best way to tell the difference between each type of mineral? Why? Mineral Properties are: -Luster -Color -Magnetism -Hardness -Streak -Cleavage There are other mineral properties like Odor and Taste.

Grade 8 Math
Oh, so all we need to do is make combinations, so that all the area adds up to 500m2. Thank you Steve and Aryan!

Computers (Internet)
Is this considered plagiarism? Original passage: A letter of thanks is a courteous acknowledgment of a gift or of something that was done for you. Another passage: A thank you note is a polite acknowledgment of a present or something nice someone did for you. Please also expla...

math
integral problem 8^7dx=

statistics
David wants to rent an unfurnished apartment for next semester. He took a random sample of 9 apartments adversised in the local Halifax paper, and recorded the rental rates. The rents (in $ per month) were: 500 650 600 505 450 550 515 495 640 a) Find a 90% confidence interval ...

Computers (Internet)
What are 2 credible websites that has information with human evolution?

internet
What does, "How is the coverage on the subject?" mean?

Internet
What does it mean when a question says, "Has the article been peer reviewed?"

Health part 2
Go Ashworth

Computers (internet)
What steps would it take you take to discover if the article was accurate? Please list them in order.

Computers (internet)
How would you know whether a particular article from Wikipedia is accurate?

math
why couldn't the chicken find her egg

Computers (internet)
But what is the process if they have an argument/disagree whether or not the information should be included or not?

Computers (internet)
If there is some debate about whether a particular bit of information should or should not be included in an article, what is the process for deciding?

Computers (internet information)
Where does Wikipedia get its information?

Science
He said it measures mass. However, the question does not make sense for it to be mass. I said it was mass, but I have second thoughts of whether it could be grams that it is measuring.

Math
y = (x^2.7/9 + 7/x^2.7) (9x-1) dy/dx solve derivative and show work

Math
If I had the math problem: 2^4 x 3^9 ---- ---- 3^5 2^7 And I used the method of sorting the bases and subtracting the exponents. Would my answer be 2^-3 x 3^4?

chem 2
calculate kc for reaction I2 (g)+Cl2 (g)⇌2ICl(g )Kp=81.9 (at 298 K)

history
. Parliament passed the Coercive Acts, known in America as the Intolerable Acts, in response to A. Patrick Henry's Resolves. B. the Boston Tea Party. C. insults addressed to the customs commissioners. D. the Boston Massacre.

Math
mr blackwell tracks sales of ski equipment each week for a month. complete the table to determine which week had the highest percent of ski equipment sales.

Math
a group of friends went on a hiking trip. they planned to hike a total of 38 miles. they want to complete 25% of the hike by the end of the first day.

Accounting
Annual interest of 5% paid if balance exceeds 800, $7 monthly fee if account falls below minimum balance, average monthly balance $1,160, account falls below $800 during 5 months. What is the annual net cost of this checking account?

Physics
how long will it take a bobsled with a velocity of 6 meters a second o stop if it decelerates at a rate of 3 meters per second?

math
The cost of renting tuxes for the Choral Society's formal is $20 down, plus $80 per tux. Express the cost C as a function of x, the number of tuxedos rented.

3 grade math
8000 counters

Science
False

Physics
thank you, i was making sure i was correct before i responded back to steve. i thought the 2 represented half of 4s, which is the delay of the echo

Physics
An oceanic depth-sounding vessel surveys the ocean bottom with ultrasonic waves that travel at 1530 m/s in seawater. Show that when the time delay of an echo to the ocean floor below is 4 s, the depth of the water is 3060 m. d=vt=1530ms x 2 =3060 not sure if i did it correct o...

Physics
In grandpa’s time automobiles were previously manufactured to be as rigid as possible, whereas autos are now designed to crumple upon impact. Why?

Chemistry
Need help identifying organic functional groups of Mifepristone's lewis structure.

Chemistry
An antacid contains 200mg of aluminum hydroxide and 200mg of magnesium hydroxide per capsule. a. How many moles of Al(OH)3 does each capsule contain? 2.56 x 10^-3 mol Al(OH)3 is that correct? b. What is the mass in milligrams of 0.0457 mole of magnesium hydroxide? 2.665 x 10^-...

Chemistry
If I have 1.93 x 10^-6 mole of chromium that would equal 100.35 mcg correct?

Chemistry
If I have 40mg of potassium, that would be how many moles of potassium? mols= grams/atomic number 0.04g/39.0983= .001023062 would equal 1.02 x 10^-3 correct? Did I do this problem correctly?

calculus
1.Ruth has 240 feet of fencing available to enclose a rectangular field. Express the area A of the rectangular field as a function x, where x is the length of the field. 2. For what value of x is the area largest? 3. What is the maximum area?

Math
If I had to report calculations precision to +/-1, 23.40-18.2= 5.2 948.75+62.45=1011.20 Would those answers be correct?

Chemistry
When one gram of gas, is burned, 55.5kJ of heat are released. How many pounds of methane gas must be burned to release 2.578 x 10^3kJ of heat?

smith
The Smiths want to buy a 9 ft. by 12 ft. carpet and center it in a 15 ft. by 20 ft. room. What is the area of the carpet?

math
What is the molarity of a 15%w/v HCl solution (GMW=36.46)?

math
give x has a poisson distribution with mean=1.6 what is the probability that x=9

math
sam burned a CD with 6 songs how many ways can Sam arrange songs on a CD

math
Suppose a third world country in the last five years is now expanding their Internet access. If they went from 2.5% of their citizens having access to the Internet to 7.5% now having access, calculate the following: a) How many percentage points did they increase in access? b)...

Writing skills 1
12. Sentence (i) has been shortened in sentence (ii) by using a(n) _______. (i) She likes a location that is in the sun. (ii) She likes a sunny location.

computers
why is payroll for employees and human resources listed as a co-number 11 business priority

Calculus
The limits are 0,3

Calculus
It is y^(2/3) - we have not gone over shell method yet so.....

Calculus
Find the volume using the shell method - about the x-axis x=y^2/3

calculus
Where does the 4/3 and 3/2 come from? Thank you

calculus
Find the volume of the solid generated by revolving the region about the given line. The region in the second quadrant bounded above by the curve y = 16 - x2, below by the x-axis, and on the right by the y-axis, about the line x = 1 I have gathered, that washer method is to be...

exponential equation
Solve the exponential equation e^x + e^-x = 6

chemistry
0.0048 ml

Physics
The current in a 5.00mH inductor drops from 2.50A to zero in 5.ooms. What is the average emf induced in he inductor?

Physics
A battery with an emf of 7.9 V and internal resistance of 1.37 Ω is connected across a load resistor R.If the current in the circuit is 0.88 A, what is the value of R? Answer in units of Ω What power is dissipated in the internal resistance of the battery? Answer i...

Physics
If the emf of a battery is 23 V and a current of 66 A is measured when the battery is shorted, what is the internal resistance of the battery? Answer in units of Ω How would you set up the equation to solve?

math
An investor purchases 75 shares at 37.90 a share, holds the stock for 150 days, and then sells the stock for 41.20 a share. Find the annual interest rate earned. principal under 3000 3000-10,000 over 10,000 commission 32+1.8% of principal 56+1% of principal 106+0.5% of principal

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