Friday

October 24, 2014

October 24, 2014

Total # Posts: 1,525

**physics**

An object slides on a level surface in the +x direction. It slows and comes to a stop with a constant acceleration of -2.45 m/s2. What is the coefficient of kinetic friction between the object and the floor? (please include explanation)
*October 20, 2014*

**Geometry **

The length of a table is 6 feet on a scale drawing the, length is 2 inches write three possible scales for drawing
*October 19, 2014*

**Geometry **

a game room has a floor that is 120 feet by 75 feet a scale drawing of the floor grid paper uses a scale of 1 unit:5 feet what are the dimensions o the scale drawing
*October 19, 2014*

**geometry**

a game room has a floor that is 120 feet by 75 feet a scale drawing of the floor grid paper uses a scale of 1 unit:5 feet what are the dimensions o the scale drawing ***Show steps please I need this by tomorrow***
*October 19, 2014*

**Science**

0.003mm
*October 13, 2014*

**Science**

Thank you
*October 13, 2014*

**Science**

a reasonable estimate for the size of a cell's nucleus is a. 0.003 b. 3 mm c. 0.003m d. 3m
*October 13, 2014*

**calculus**

ya i just didn't get the second part because its volume not the surface area and i got a big number I'm not sure about it
*October 12, 2014*

**Sociel Studies**

Hello, Thank you, so I was on the right track?
*October 12, 2014*

**Sociel Studies**

Hello, I keep coming the answer of sovereign immunity but I am unsure. I am trying to write a paper and here is the question: Why a government leader, politician, or special interest group invoke sovereignty?
*October 12, 2014*

**Calculus**

Use differentials to determine by approximately what percentage does the perimeter of a square table increase if its diagonal is increased from 30 centimetres to 31.245 centimetres
*October 11, 2014*

**Physics**

The potential difference between the plates of a capacitor is 335 V. Midway between the plates, a proton and an electron are released. The electron is released from rest. The proton is projected perpendicularly toward the negative plate with an initial speed. The proton ...
*October 10, 2014*

**Chemistry **

What is the wavelength of a photon having a frequency of 71.6 THz? So I know 1 THz = 10 to the power of 15 Hz And c= 3 x 10 to the 8th and h= 6.63 x 10 to the -34th
*October 10, 2014*

**Math**

On an airplane,there are two seats on the left side in each row and three seats on the right side. There are 90 seats on the right side of the plane. a. How many seats are on the left side of the plane? b. How many seats are there altogether?
*October 9, 2014*

**Math**

5/8 of the 64 musicians in a music contest are guitarists. Some of the guitarists play jazz solos, and the rest play classical solos. The ratio of the number of guitarists playing jazz solos to the total number of guitarists in the contest is 1:4. How many guitarists play ...
*October 8, 2014*

**Electron transition**

The electron in a hydrogen atom in level n= 8 undergoes a transition to a lower leve by emitting a photon of wavelength 956 mom. What is the final level of the electron? A) 4 B) 8 C) 9 D) 1 E) 3
*October 8, 2014*

**Fraction**

3/4 x 12= 9 eggs
*October 2, 2014*

**Math**

the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The temperature rose another...
*September 29, 2014*

**Math**

the temperature dropped 18 degrees F between 6 am and 6 pm. during the night the temperature fell another 8 degree F. at 6 am the temperature started rising. It rose 1degree F the first hour, 2 degree F the second hour, and 4 degree the third hour. The temperature rose another...
*September 29, 2014*

**ps 84**

rewite you can bake a potato with the rays of the sun on a very hot day as an imperative sentence
*September 25, 2014*

**Maths**

a litre of orange fruit drink contains 22%orange juice.how many millilitres of orange juice must be added to produce a mixture containing 50% orange juice?
*September 25, 2014*

**Physics**

A quarterback is trying to throw a football to a stationary receiver. The receiver is not directly in front of him, so the total velocity of the ball and the velocity of the quarterback has to be 20 m/s at an angle of 21.4 degrees from the vertical direction as shown in the ...
*September 24, 2014*

**Chem**

Ohhhh Ok thank you sooo much :) makes more sense Thank you again
*September 22, 2014*

**Chem**

I am a little confused ... the previous questions were What is the concentration in W/V units? (23g/250ml)x100 = 9.2% w/v How many moles of NaCi were dissolved? (23g/1) x (1mol/58.54g)+ .39moles Then it was How many atoms were dissolved? and this is zero because there are no ...
*September 22, 2014*

**Chem**

I have a concentration of saltwater (NaCI) in that there was 23 g of salt dissolved in .025 L of water. How many atoms were dissolved? Is this how you set it up??? .39 x(6.022x10^23)
*September 22, 2014*

**chemistry**

Thank you :)
*September 17, 2014*

**chemistry**

I have 3 grams of CaCI2 and dissolve this into 0.5 L water. What is the concentration in g/dl (grams/deciliter)? I take 10 milliliters of this solution and add it to 990 milliliters of watet fo a total of 1000 milliliters. What is the concentration of this new dilution in ...
*September 17, 2014*

** Math**

helen purchased three books and received a 20% discount. She will pay $10 for shipping. Write an expression that can be used to represent the total amount paid for the three books and the shipping cost.
*September 10, 2014*

**chemistry**

calculate the molality, molarity, and mole fraction of NH3 in an 12.80 mass % aqueous solution (d=0.9651 g/ml)
*September 8, 2014*

**geometry**

what is the perimeter of a 12 * 15 pool with a 3ft non slip surface around it
*September 4, 2014*

**math**

y= tan((pi x)/2) what is the domain of y? My ans. is x= 1/2+k ;k is Z Is it correct Please help!!!
*September 4, 2014*

**math**

12,24,72,288 what is next
*August 26, 2014*

**CHEMISTRY**

A mixture of methane and helium is placed in a 2.0 l flask at 27 degrees the partial pressure of methane is 0.72 ATM and the partial pressure of helium is 0.22 ATM . What is the mole fraction of ch4?
*July 30, 2014*

**Math 221**

Joe rented a truck for one day. There was a base fee of $15.99 , and there was an additional charge of 97 cents for each mile driven. Joe had to pay $295.35 when he returned the truck. For how many miles did he drive the truck?
*July 20, 2014*

**Math 221**

In Cowling's Rule If a doctor prescribes 75 milligrams of tamiflu for an adult, then how many milligrams would she prescribe for a six-year-old child using Cowling's rule?
*July 17, 2014*

**Math 221**

If a doctor uses Cowling's rule to prescribe 187 milligrams of Tamiflu to a child when she would prescribe 500 milligrams to an adult, then how old is the child?
*July 17, 2014*

**Math 221**

In Cowling's Rule If a doctor prescribes 75 milligrams of tamiflu for an adult, then how many milligrams would she prescribe for a six-year-old child using Cowling's rule?
*July 17, 2014*

**Math 221**

The question is using the Cowling's Rule for children's dosage of medication. Explain what the variables in the formula represent and show all steps in the computations. Part A -An adult dose is 75mg Part B- 500mg (adult) 187mg (child)
*July 17, 2014*

**Math**

The question is using the Cowling's Rule for children's dosage of medication. Explain what the variables in the formula represent and show all steps in the computations. Part A -An adult dose is 75mg Part B- 500mg (adult) 187mg (child)
*July 17, 2014*

**Math**

The question is using the Cowling's Rule for children's dosage of medication. Explain what the variables in the formula represent and show all steps in the computations.
*July 17, 2014*

**Math**

Part A -An adult dose is 75mg Part B- 500mg (adult) 187mg (child) How I come up with a formula for this problem?
*July 17, 2014*

**Math pre-calculus**

Write an expression for all of the vertical asymptotes of y=-3 csc(pi/4 *x) Can you list step by step to show how to do it , I don't understand this problem !!! Thanks
*July 9, 2014*

**chemistry**

A mixture of He, N2, and Ar has a pressure of 14.2 atm at 28.0 °C. If the partial pressure of He is 1525 torr and that of Ar is 2807 mm Hg, what is the partial pressure of N2?
*July 2, 2014*

**algebra**

I need help solving this equation. 7y+5/3 = -8/y-3. I am stuck. please help me.
*June 26, 2014*

**math**

draw a number line to show that the fractions are equivalent 3/4=6/8 and 1/4=2/8
*May 20, 2014*

**math**

how you can use a number line to show that 3/6 and 1/2 are equivalent fractions
*May 20, 2014*

**Matrices **

A triangle has vertices (1, 4), (1, 1), and (−3, 1). The triangle is dilated by a scale factor of 2, then translated 5 units up, and then rotated 90° counterclockwise about the origin. What are the vertices of the image of the triangle
*May 7, 2014*

**Algebra 1/2**

Thanks for answering
*April 30, 2014*

**Algebra 1/2**

The spinner has number 1 thru 8. And is spun twice. What is the probability it will stop on either 3 or 5 the first time and will stop on 2 the second time?
*April 30, 2014*

**Algebra 1/2**

With numbers 1 thru 8
*April 30, 2014*

**Algebra 1/2**

The spinner is spun twice. What is the probability it will stop on either 3 or 5 the first time and will stop on 2 the second time?
*April 30, 2014*

**Chemistry **

Use intermolecular forces to explain why alkanes with 1-4 C are gases; 5-16 C are liquids; and greater than 16 C is solid
*April 21, 2014*

**Math**

Andy needs to pay off a loan of $18,000 in 5 years. Find the amortization payment he would need to make each semi-monthly pay period (twice a month)at 6% compounded bi-monthly, in order to pay off the loan.
*April 17, 2014*

**managerial accounting**

The break-even point in dollar sales for Rice Company is $480,000 and the company’s contribution margin ratio is 40 percent. If Rice Company desires a profit of $84,000, how much would sales have to total? Answer: Fixed cost $288,000 Variables cost $192,000 (0.4)= $76,800...
*April 16, 2014*

**PreCal**

Please Can Someone Help Me Solve For x Using Log Properties: log(base 3) x*(x-80)=4
*April 4, 2014*

**PreCal**

Solve Using Log Properties: 1/4 = 8^3x+5
*April 4, 2014*

**Math**

Write recursive equation: 1/3,3,27,81,243
*April 2, 2014*

**math**

If you pay $585 a month or $135 a week for 2 work days, then how much do you get paid per day?
*March 31, 2014*

**math**

you just did the problem
*March 24, 2014*

**math**

whoever answers me again It should be..... 1 3/8, 1 3/4, 2 1/8, __, 2 7/8
*March 24, 2014*

**math**

ill wit for more answers
*March 24, 2014*

**math**

thank you Steve :-)
*March 24, 2014*

**math**

PLEASE ANSWER!!!???!!!
*March 24, 2014*

**math**

anbody there
*March 24, 2014*

**math**

patterns with fractions write a rule for the sequence.then,find the unknown number how do you do this?ill give you an example...1/2, 2/3, 1, 1 1/6.it says,think:the pattern is increasing.add 1/6 to find the next term.here is a problem.... 1 3/8, 1 3/4, 2 1/8, 2 7/8 rule: I ...
*March 24, 2014*

**PreCal**

Solve The Inequality 0 < -9x/x-x^2
*March 23, 2014*

**english**

So, the correct answer is A
*March 20, 2014*

**english**

Select the sentence in which all pronouns are used correctly. A. I sat between him and her during the sales conference. B. Just between you and I, I am not impressed by our new manager. C. Be sure to divide all income from the suburban property between he and I. D. I hope she...
*March 20, 2014*

**PHYSICS**

thank you.
*March 18, 2014*

**PHYSICS**

A 5.00-kg box slides 7.00 m across the floor before coming to rest. What is the coefficient of kinetic friction between the floor and the box if the box had an initial speed of 3.00 m/s?
*March 18, 2014*

**personal finance**

Chloe has a $2,500 credit limit on her credit card and has charged $1,295.19 to her account. There is a 1.5% finance charge on the $1,295.19. How much must Chloe pay to clear her account?
*March 14, 2014*

**Physics**

Two dogs pull horizontally on ropes attached to a post; the angle between the ropes is 66.0∘. Dog A exerts a force of 278N , and dog B exerts a force of 324N . =Find the magnitude of the resultant force. =Find the angle the resultant force makes with the rope of dog A.
*March 9, 2014*

**Math**

x varies directly as y3 . If x is 32 when y is 2, find x when y is –3
*March 8, 2014*

**Does not have an Agreement error**

After the walk he developed some sharp chest pains and was helped with a nitroglycerin tablet.
*March 7, 2014*

**chemistry**

A 1.009g mixture of Na2SO4 (molar mass=142.04 g/mol) and Pb(NO3)2 (molar mass= 331.20 g/mol)? A)write th3 molecular form of the equation for the reaction. b)write the net ionic equation for the reaction.
*March 5, 2014*

**social studies**

Please Mrs.Sue will you grade my answers.
*February 23, 2014*

**social studies**

1.c 2.a 3.d 4.b 5.b 6.a 7.c 8.d 9.a 10.d 11.d 12.b 13.a 14.c 15.b 16.a 17.a 18.c 19.b 20.a
*February 23, 2014*

**math**

Sally has 5 hershey bars she has to share the bars with 7 friends how much will each friend get?
*February 19, 2014*

**Pennfoster**

Today, government and corporate security officials are most worried about
*February 18, 2014*

**Management**

On an organization chart, span of control refers to the
*February 16, 2014*

**Physics**

4. A basketball is thrown from a height of 1.60(m), with an angle of 45o above the horizontal. (a) With what initial speed must the basketball be thrown so that it reaches the basket at the highest point of its trajectory? The basket is at a height of 3.05(m) above the ground...
*February 15, 2014*

**Social Studies**

Mrs. Sue are my answers correct 1.b 2.d 3.a 4.b 5.c
*February 13, 2014*

**math**

C(x) = 9x for x <= 150 = 9*150+6(x-150) for 150 < x < 210 = 9*150 + 6*59 + 3(x-209) for x >= 210
*February 12, 2014*

**physics**

thank you so much Damon!
*February 10, 2014*

**physics**

A remote-control vehicle moves forward with constant acceleration. During the ﬁrst two seconds, it travels 55.0(cm), and during the following two seconds, another 77.0(cm) (a) Calculate the vehicle’s initial velocity and its acceleration. (b) What distance will it...
*February 10, 2014*

**Physics**

You're driving down the highway at 20m/s when you see a snowman you don't want to crush 35 m in front of you. Your reaction time before stepping on the brakes is 0.5s, and acceleration created by your brakes is 10 m/s^2 what was the distance travelled before coming to ...
*February 7, 2014*

**social studies**

Who invented the cotton quill
*February 7, 2014*

**reading**

Thank you for your cooperation
*February 6, 2014*

**reading**

Ms.Sue
*February 6, 2014*

**reading**

Can you search the book
*February 6, 2014*

**reading**

I answered both of your questions Ms.Sue.Now can you please search it?
*February 6, 2014*

**reading**

#1-I disagree #2-i don't know that's what's need help with
*February 6, 2014*

**reading**

Well can you please try to search it :-(
*February 6, 2014*

**reading**

The is called Rachel Carson pioneers of ecolegy
*February 6, 2014*

**reading**

I disagree ms.sue And I need help
*February 6, 2014*

**reading**

In the book Rachel Carson I'm suppose to agree or disagree about "a person can be a professional scientist or writer but rarely both".the chapter is 3 it says use details and examples from the chapter to support your decision and it's hard for me and I don&#...
*February 6, 2014*

**math**

I guess it's $48
*February 6, 2014*

**Biochemistry**

A buffer solution is prepared by mixing 2.50 mL of 2.00M sodium acetate with 3.30mL of 0.500M HCl and diluting the buffer with water to a final volume of 500.0mL. pK acetic acid: 4.76 what is ph of buffer? what is final concentration of buffer?
*February 4, 2014*

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