Friday
October 24, 2014

Posts by maria


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

math 3
88
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
Idk
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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