Monday
February 8, 2016

Posts by Tiffany

Total # Posts: 878

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?
January 14, 2014

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?
January 14, 2014

science... PLEASE HELP!
Within which group would all members show the greatest similarities: Phylum kingdom genus Or species?
January 13, 2014

Social studies (History)
What are three good questions to ask a student to see if they understand the Reconstruction era?
January 9, 2014

Business Math
What is the compound interest on the previous investment?
January 8, 2014

Math question
Thank you Ms.Sue
January 7, 2014

Math question
6yz?
January 7, 2014

Math question
y + 2y + 3z?
January 7, 2014

Math question
5x + 2(x + 6) 7x + 6 7x*2 + 12 7x + 12 7x (x+6)
January 7, 2014

Social Stydies (History)
Correction: How did the Civil War start the Reconstruction era?
January 7, 2014

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!
January 7, 2014

History
What are some positives and negatives results from the reconstruction era?
January 6, 2014

Social Studies (History)
What does it mean by "Uplift America's urban poor"?
December 17, 2013

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&#...
December 16, 2013

Calculus
the answer wasn't correct and I tried to do it myself and it is not working
December 16, 2013

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
December 16, 2013

Calculus
Evaluate the integral. HINT [Use a shortcut or see Example 4.] 4 to 3 x/(3x^2-6)dx
December 16, 2013

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
December 15, 2013

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]
December 11, 2013

Calculus
thank you so much
December 11, 2013

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
December 11, 2013

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
December 11, 2013

Science
Which mineral property is the best way to tell the difference between each type of mineral?
December 3, 2013

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.
December 3, 2013

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!
November 23, 2013

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 ...
November 20, 2013

math
integral problem 8^7dx=
November 20, 2013

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 ...
November 14, 2013

Computers (Internet)
What are 2 credible websites that has information with human evolution?
November 8, 2013

internet
What does, "How is the coverage on the subject?" mean?
November 6, 2013

Internet
What does it mean when a question says, "Has the article been peer reviewed?"
November 6, 2013

Health part 2
Go Ashworth
November 5, 2013

Computers (internet)
What steps would it take you take to discover if the article was accurate? Please list them in order.
November 5, 2013

Computers (internet)
How would you know whether a particular article from Wikipedia is accurate?
November 5, 2013

math
why couldn't the chicken find her egg
November 5, 2013

Computers (internet)
But what is the process if they have an argument/disagree whether or not the information should be included or not?
November 4, 2013

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?
November 4, 2013

Computers (internet information)
Where does Wikipedia get its information?
November 4, 2013

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.
November 4, 2013

Math
y = (x^2.7/9 + 7/x^2.7) (9x-1) dy/dx solve derivative and show work
October 22, 2013

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?
October 21, 2013

Physics
Tangential acceleration and speed are constant. Tangential acceleration is zero
October 8, 2013

chem 2
calculate kc for reaction I2 (g)+Cl2 (g)⇌2ICl(g )Kp=81.9 (at 298 K)
October 6, 2013

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.
October 2, 2013

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.
September 24, 2013

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.
September 23, 2013

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?
September 6, 2013

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?
September 6, 2013

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.
September 3, 2013

3 grade math
8000 counters
August 22, 2013

Science
False
August 21, 2013

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
August 19, 2013

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 ...
August 19, 2013

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?
August 4, 2013

Chemistry
Need help identifying organic functional groups of Mifepristone's lewis structure.
July 20, 2013

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^-...
July 1, 2013

Chemistry
If I have 1.93 x 10^-6 mole of chromium that would equal 100.35 mcg correct?
July 1, 2013

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?
July 1, 2013

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?
June 20, 2013

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?
June 20, 2013

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?
June 19, 2013

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?
June 17, 2013

math
What is the molarity of a 15%w/v HCl solution (GMW=36.46)?
June 17, 2013

math
give x has a poisson distribution with mean=1.6 what is the probability that x=9
June 6, 2013

math
sam burned a CD with 6 songs how many ways can Sam arrange songs on a CD
June 6, 2013

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...
May 9, 2013

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.
May 9, 2013

computers
why is payroll for employees and human resources listed as a co-number 11 business priority
May 3, 2013

Calculus
The limits are 0,3
April 12, 2013

Calculus
It is y^(2/3) - we have not gone over shell method yet so.....
April 12, 2013

Calculus
Find the volume using the shell method - about the x-axis x=y^2/3
April 12, 2013

calculus
Where does the 4/3 and 3/2 come from? Thank you
April 12, 2013

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...
April 12, 2013

exponential equation
Solve the exponential equation e^x + e^-x = 6
April 7, 2013

chemistry
0.0048 ml
March 20, 2013

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?
March 19, 2013

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 ...
March 4, 2013

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?
March 4, 2013

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
March 1, 2013

math
George finds a company that charges 59 cnets per day for each 1000 borrowed. if he borrows 3000 for 60 days, what amount will he repay, and what annual interest rate will he pay the company?
March 1, 2013

Math 75
if you paid $120 to a loan company for the use of $2000 for 90 days, what annual rate of interest did they charge?
March 1, 2013

math
A woman 5ft 6in tall stands so that the tip of her shadow coincides with the tip of the shadow of a tall tree. The woman stands 18 ft from the tip of her shadow and 100 ft from the base of the tree. How tall is the tree?
March 1, 2013

algebra
what is 0.0446 rounded to the nearest hundredth of a percent
February 28, 2013

Math
How did you get that?
February 28, 2013

Math
factor the polynomials using whatever strategy seems appropriate. 12m^2n^2-8mn+1
February 28, 2013

Help math calc
Find the future value of $700 deposited at 3% for 9 years if the account pays simple interest and the account pays compounded annually? The future value of an account that pays simple interest is what?
February 21, 2013

Math college
Find the future value of $700 deposited at 3% for 7 years if the account pays simple interest and the account pays interest compounded annually
February 21, 2013

Mth
Find the slope of the line. 2x-4y=2
February 18, 2013

Chemistry
A solution contains 314 mg/L of Ca2 . What is the solution in nmol/m3?
February 15, 2013

Physics
We want to find how much charge is on the electrons in a nickel coin. Follow this method. A nickel coin has a mass of about 4.9 g. Find the number of atoms in a nickel coin. Each mole (6.02 × 10 23 atoms) has a mass of about 58.1 g. Answer in units of atoms Find ...
February 7, 2013

Physics
An electroscope is a simple device consisting of a metal ball that is attached by a conductor to two thin leaves of metal foil protected from air disturbance in a jar. When the ball is touched by a charged body, the leaves that normally hang straight down, spread apart. Why? 1...
February 7, 2013

Physics
A plastic rod is rubbed against a wool shirt, thereby acquiring a charge of −4.9 µC. How many electrons are transferred from the wool shirt to the plastic rod? The elemental charge is 1.6 × 10^-19C.
February 7, 2013

Physics
In a crystal of salt there are electrons and positive ions. How does the net charge of the electrons compare with the net charge of the ions? 1. Unable to determine 2. Sometimes the net charge of the negative electrons is greater than the net charge of the ions and sometimes ...
February 7, 2013

Physics
Why are the tires for trucks carrying gasoline and other flammable fluids manufactured to be electrically conducting? 1. To make the truck easier to drive 2. To move the positive charges from the truck to the ground and avoid fire 3. To neutralize the charges...
February 7, 2013

Physics
At some automobile toll-collecting stations, a thin metal wire sticks up from the road and makes contact with cars before they reach the toll collector. What is the purpose of this wire? 1. To warn the drivers 2. To count the vehicles 3. To transfer positive particles to the ...
February 7, 2013

math
a baker made 100 dozen cookies she sold 3/5 of them before noon how many dozen were sold before noon
January 31, 2013

Physics
You have collected exactly 2800 aluminum cans for recycling, each with a mass of 13.6 g. How much energy is needed to melt them if their initial temperature is 26.2◦C? Assume the specific heat, the latent heat and the melting point of aluminum are 899 J/kg ·◦...
January 30, 2013

Physics
How much energy is required to change a 58 g ice cube from ice at −1◦C to steam at 101◦C? The specific heat of ice is 2090 J/kg ·◦ C and of water 4186 J/kg ·◦ C. The latent heat of fusion of water is 3.33 × 105 J/kg, its latent...
January 30, 2013

Physics
You have collected exactly 2800 aluminum cans for recycling, each with a mass of 13.6 g. How much energy is needed to melt them if their initial temperature is 26.2◦C? Assume the specific heat, the latent heat and the melting point of aluminum are 899 J/kg ·◦...
January 30, 2013

Physics
A 123 g cube of ice at 0◦C is dropped into 1.9 kg of water that was originally at 81◦C. What is the final temperature of the water after after the ice melts? The latent heat of fusion of water is 3.33 × 105 J/kg . Answer in units of ◦C
January 30, 2013

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