Monday
October 24, 2016

# Posts by marty

Total # Posts: 121

Math
A walking area around a pool is going to be frfinished with a nonslip surface. If it costs \$17 per square foot to install what is the total cost? Inner rectangle is length 20 ft by width 10 ft. Outer dimensions of walkway are 14 length by 10ft. I have no idea how to set up ...
October 7, 2016

Math
Betty is supposed to work the same number of hours each week. One week, she worked 42 hours the first week and 34 hours the second week, how many hours is Betty supposed to work?
December 13, 2015

Physics
A block M1 of mass 20.0 kg sits on top of a larger block M2 of mass 30.0 kg which sits on a flat surface. The kinetic friction coefficient between the upper and lower block is 0.415. The kinetic friction coefficient between the lower block and the flat surface is 0.115. A ...
October 2, 2015

Physics
A model rocket is launched straight upward with an initial speed of 46.4 m/s. It accelerates with a constant upward acceleration of 2.18 m/s2 until its engines stop at an altitude of 138 m. What is the maximum height reached by the rocket? How long after lift off does the ...
September 4, 2015

Physics
An airplane has a takeoff speed of 66m/s. Assuming a constant acceleration of 1.62m/s^2, how long is the plane accelerating down the runway?
August 28, 2015

math
Jeff is replacing the tile on his floor. he pans to use square tiles that are 11 inches on a side. the floor is 8 feet long and 6 feet wide. cabinet in the middle of the floor that will not need tile. this space is 2 feet wide and 3 feet long. estimate how many title will be used
April 14, 2015

Math
Mandy got 22 questions correct on her test. Her grade was 80%. How many questions were on the test.
October 20, 2014

math
(1,0) (3,4) (5,8) (7,12) what would be the output value when the input value is 12?
September 22, 2014

LOGS (ALGEBRA)
FIND THE INVERSE: f(x) = 10^(5x+3) - 10 f^-1(x) =
May 5, 2014

statistics
The mean score for all individuals who took the Law School Admission Test (LSAT) in 2010 was 155 and the standard deviation was 7. 9. What is the z score for a person, who received an LSAT score of 167? a. +1.71 b. +1.64 c. +1.74 d. -1.71 10.What is the raw score for a person ...
April 18, 2014

Acct
One of the companies for which you provide accounting services offers office cleaning services and has 8 customers. Cleaning services are provided in the evenings, Sunday through Thursday, at a rate of \$30 per day. Billing is done every Friday. During the month, revenue is ...
February 20, 2014

math
factor 8x^3-8x=0
January 26, 2014

Physics need help now
A daredevil is dead set on jumping the Grand Canyon at its narrowest point (180 meters across). He has set up a ramp at 25 degrees and the ramp's release point is 20 meters above the rim of the canyon. He claims that his bike will be going 40m/s by the time he leaves the ...
September 22, 2013

physics
A daredevil is dead set on jumping the Grand Canyon at its narrowest point (180 meters across). He has set up a ramp at 25 degrees and the ramp's release point is 20 meters above the rim of the canyon. He claims that his bike will be going 40m/s by the time he leaves the ...
September 22, 2013

physics
A rocket ship at rest in space gives a short blast of its engine, firing 26 kg of exhaust gas out the back end with an average velocity of 182 m/s. What is the change in momentum of the rocket during this blast?
April 2, 2013

statistics
A residential treatment facility tests a new group therapy for patients with self destructive behaviors. To decrease scores of behaviors that has a mean in the overall population of 35 and a standard deviation of 4.7. The mean score for patients after new group therapy is 27. ...
March 1, 2013

WAN
Provide a hypothetical situation for each signal type that illustrates how it could be, or is being, used in a WAN. In what circumstance, for example, would a company choose to use a satellite signal
January 31, 2013

math
2 ounces
January 10, 2013

equations
3 dimes+1 nickle+2pennies=1quarter+1dime+?
September 4, 2012

us history
How did the automobile change America both geographically and socially?
August 24, 2012

SCIENCE
A PIPE FULL DIESEL HAS 5 PSI ON IT, AT 70 DEGREES AND ONE DEGREE OF CHANGE = WHAT PRESSURE
August 24, 2012

american history
I believe if I had an example of the arguments for and against I would be able to go from there.
August 13, 2012

american history
I need to present arguments for and against imperialism in the 19th century and state if it was UN-American or not.
August 13, 2012

american history
What did the Compromise of 1877 have to do with the end of Reconstruction?
August 3, 2012

Health
Write a 200- to 300-word response to the following: What is long-term care? Provide an example. What is continuum of care services in the United States? Why is long-term care one of the greatest challenges facing the health care delivery system today?
July 19, 2012

Physics
an electron in a mercury atom jumps from level a to level g by absorbing a single photon. determine the energy of the photon in joules.
April 19, 2012

chemistry
100 mL of water is already in the calorimeter. Use the density of water at 25°C (0.998 g/mL) to determine the mass
June 27, 2011

chemistry
100 mL of water is already in the calorimeter. Use the density of water at 25°C (0.998 g/mL) to determine the mass
June 27, 2011

Tech math
The sum of two numbers is 32. Ten more than half of the sum of the numbers is 26. What are the numbers?
May 26, 2011

physics
I don't quite understand
January 14, 2011

physics
If a polonium-210 (Po-210) atom has just decayed, how close can the ejected alpha particle get to a neighboring Po-210 nucleus? Hint: W = F*r F=kq1q2/r 2
January 14, 2011

Nuclear Physics
If a polonium-210 (Po-210) atom has just decayed, how close can the ejected alpha particle get to a neighboring Po-210 nucleus? Hint: W = F*r F=kq1q2/r 2
January 13, 2011

accounting
John's specialty store uses a perpetual inveentory system. the following are some inventory transaction for the month of may 2009. John's purchased merchandise on account for \$5,000. FREIGHT CHARGE OF \$300 WERE PAID IN CASH. JOHN'S RETURNED SOME OF THE MERCHANDISE ...
November 28, 2010

medical coding and billing
discuss coding or obstetrics, including items covered by the global fee for antepartum and pospartum periods of normal pregnancy
September 22, 2010

mat116
G(z)=4z+2 how to work this
July 25, 2010

computers
hl=en&lr=&as_qdr=all&ei=pAQqTJXuBsP38AaSnPTRCA&q=how+does+an+information+system+work+what+are+its+people+organizational+and+technological+components+List+and+describe+the+people+organizational+and+technological+components&start=10
June 29, 2010

algorithms and logic
i need an example of a peer review of the currency conversion test procedure exercises
June 10, 2010

Cultural Diversity
if some one made the following statement Asian americans and pacific islander belong to a single -asian American culture, how would you explain that the statement is a misconception? include whether you think ,most americans believe this misconceptions and why or why not.
April 12, 2010

Cultural Diversity
if someone made the following statement asian americans and Pacific Islanders are a model minority, how would you explain that the statements are misconceptions and why or why not. include whether you think most americans believe these mixconceptions, and why or why not.
April 12, 2010

algebra
7r-3s=18 3r+7s=16 Solve by the elimination method, please.
April 11, 2010

cultural diversity
2-3 consequence situations that are associated with group known as native americans.
February 26, 2010

algebra
solve the equation for x 1 + 1 = 1 - - - x 12 8
December 13, 2009

Algebra
Factor completely 6a-9a^2
December 13, 2009

algebra
Perform and give answer in simplified form Find the product (2x-5)^2
December 13, 2009

Functioning labor unions
September 13, 2009

math
why is it necessary to find the gcf of two or more numbers
April 11, 2009

havelock high
An object accelerates (changes its speed) only if the forces acting on it in one direction are greater than the forces in the opposite direction, All of the following objects will accelerate EXCEPT? A) a ball striking a wall, in which the force of the ball on the wall is ...
March 29, 2009

A radius and a diameter both have to ___________.
March 17, 2009

Calculus
Find the volume of the cone of maximum value that can be inscribed in a sphere of radius 10cm.
March 9, 2009

Calculus
An indoor physical fitness room consists of a rectangular region with a semicircle on each end. The perimeter of the room is to be a 200m running track. Find the dimension that will make the area of the rectangular as large as possible.
March 7, 2009

Need weight of Iron vs magnesiium
January 12, 2009

Math word problem
The cost of producing x bags of pretzels is modelled by C(x)=0.5x^2 + x + 2 where x=# of bags per hundred. State the function that represents the average cost.
November 9, 2008

Math (Functions)
he cost of producing x bags of pretzels is modelled by C(x)=0.5x^2 + x + 2 where x=# of bags per hundred. State the function that represents the average cost. Do you just have to factor it?
November 9, 2008

woops i mean this........ the answer to this question is..... OMG KID THAT IS HARD, WHAT GRADE R U IN
November 4, 2008

the answer to this question is OMG THAT ISHARD JESE KID WAT GARDE R U IN
November 4, 2008

Psychology
Describe other measurements sociologists use to calculate prejudice.
August 27, 2008

Com 220
Actually it is called the SQ3R method, my bad.
August 27, 2008

Com 220
Read, Recite, Review! It always works.
August 27, 2008

Thank you
August 4, 2008

socialization process of caregivers. what are the implications for patients?
August 4, 2008

Physics
Two identical charges are 36 mm apart. The electrostatic force between them is 1.3 N. What is the size of each charge?
June 3, 2008

Physics
A student photographs a 18cm flower so it fills half of a 24mm slide. What is the magnification?
May 20, 2008

Physics
The first and second resonant lengths of an air column that is closed at one end are 15.5 cm and 45.5 cm, respectively. What is the best value for the wavelength?
April 26, 2008

Physics
If the third harmonic of a standing wave in a vibrating string is 600 Hz, what is the fundamental frequency?
April 26, 2008

Physics
At a height of 3.00 m above the ground, a 0.500-kg ball is thrown with an initial speed of 30.0 m/s in an arc from point A to point C. When the ball is 6.00 m above the ground travelling upward, what is the speed of the ball?
March 26, 2008

Physics
Calculate the work done by planet X on its moon. Planet X applies a force of 5.6 x 10^10 N on its moon and the moon is 4.0 x 10^8 km away from the planet and it continues to circle the planet in a circular orbit of circumference of 2.5 x 10^9 m.
March 26, 2008

math
2/6 of the insects were centipedes. 1/2 were millipedes, 12 were flies. How many insects were there? Please explain.
March 11, 2008

Maths
Thanks
March 6, 2008

Maths
the interest charge would be 11.96*36 = \$3833.60 a difference of 76 cents Hi how did you get the 3833.6 from multiplying 11.96*36. Thanks
March 6, 2008

Maths
In order to make some home improvements, a home owner spent \$40,000. He paid 20% as a down payment and financed the balance of the purchase with a 36-month fixed installment loan with an APR of 7.5%. Determine the home owner’s a) total finance charge and b) monthly ...
March 6, 2008

Physics
If you weighed 112 N on the Moon where g=1.6N/kg, how much would you weigh on Earth?
March 5, 2008

physics
How much would a 60-kg person weight on the Moon where the gravitational field has a magnitude of 1.6 N/kg?
March 5, 2008

Physics
A 2500kg car is travelling due west at 30m/s when the brakes are applied, exerting a force of 5000 N [E]. What is the car's acceleration due to the braking?
March 2, 2008

The proper form would be -x^2 +2x -1. You could also put it as x^2 -2x -1. Either way they will both factor the same. Just make sure its in standard form (ax^2 +bx +c)
March 2, 2008

Physics
The applied force of a 2.0-kg object is 8.4 N [E] and the friction is 2.2 N [W]. What is the motion of the object? Can I use the formula Fnet = ma?
March 2, 2008

economics
What changes if any to the current condition of these tools would you make at the next meeting of the Federal Reserve Explain why and the benefitsdrawbacks of this strategy
December 4, 2007

accelerated math
i woudn't know the answer to this ? but i would think there is
November 26, 2007

accelerated math
is there a ruler thhat is just made for fractions like 1/8ths and lower
November 26, 2007

math mesurment
i do not ahve a clue but then again im only in 7th grade
November 26, 2007

Chemistry
What are some factors that affect the solubility of ionic substances?
November 24, 2007

Chemistry
what are the units of 100 and 40?
November 14, 2007

Chemistry
on the x axis is temperature (degrees celsius) and on the y axis is solubility (g/100g H20). Is there any mathematical way to figure this out instead of using the solubility curve.
November 14, 2007

Chemistry
Would a solubility curve help?
November 14, 2007

Chemistry
At what temperatures can 40mL of water dissolve the follownig quantities of potassium nitrate? (a) 35.0g (b) 20.0g can anyone start me off with a formula or a hint?
November 14, 2007

Chemistry
I'm trying to find if potassium nitrate is polar or non-polar by using the electronegativity scale. Can someone check my work? Electronegativity: potassium: 0.82 nitrogen: 3.04 oxygen: 3.44 =3.44-3.04 =0.82-0.4 =0.4 =0.42 So the final answer is 0.42 and by looking at the ...
November 10, 2007

Chemistry
Could you explain your "like dissolves like" statement?
November 6, 2007

Chemistry
Would this be a correct general statement about the type of solute dissolves in non-polar solvents: Compounds that are non-polar will dissolve in non-polar solvents. Do you have any tips on how I could elaborate on this?
November 6, 2007

Chemistry
1. Water is a polar molecule. Therefore, it acts as a polar sollvent. a) Think about the following compounds: iodine, cobalt (II) chloride and sucrose (C12H22O11). Which compounds are soluble in water. b) Assume that the interaction between solutes and solvents that you ...
November 6, 2007

Chemistry
That helps! Thanks!
October 29, 2007

Chemistry
6ClO2 + 3H2O -> 5HClO3 + HCl a) If 71g of ClO2 is mixed with 19g of water, what is the limiting reactant? b) What mass of HClO3 is expected in part (a)? c) How many molecules of HCl are expected in part (a)? I completed part a and b but got stuck on part c. Help!
October 29, 2007

Chemistry
So I calculated the mass of MgSO4 (120.37g/mol) and the mass of 7H2O (126.14g/mol). Then I divided the mass of MgSO4 by MgSO4 . 7H20 multiplied by 100%. My answer was 95.426%. But how do I get the amount of magnesium?
October 22, 2007

Chemistry
What would be the mass of a bag of anhydrous magnesium sulfate, MgSO4, if it contained the same amount of magnesium as a 1.00kg bag of Epsom Salts, MgSO4 . 7H2O?
October 22, 2007

Chemistry
Got it! Thanks
October 22, 2007

Chemistry
Could you explain the steps you did for the first part? Do I multiply 3.49 x 10^23 by the mass of H2O?
October 22, 2007

Chemistry
How many atoms of H are in a mixture of 3.49 x 10^23 molecules of H2O and 78.1g of CH3OH?
October 22, 2007

Chemistry re-post URGENT
Awesome! Thanks
October 22, 2007

Chemistry re-post URGENT
Well i found the moles of each element. Carbon has 5.91mol Hydrogen has 8.51mol Oxygen has 0.988mol Nitrogen has 0.328mol Then I put the moles as subscripts and divded each subscript by the lowest amount of moles (nitrogen with 0.328mol). Then as the empirical formula I get ...
October 22, 2007

Chemistry re-post URGENT
Chemical analysis reveals capsaicin to contain 71.0% of carbon, 8.60% hydrogen, 15.8% oxygen and 4.60% nitrogen. a) Determine the empirical formula of capsaicin b) Each molecule contains one atom of nitrogen. What is the molecular formula of capsaicin? I figured out the ...
October 22, 2007

Chemistry
A hydrate of zinc nitrate has the formula Zn(NO3)2 . xH2O. If the mass of 1 mol of anhydrous zinc nitrate is 63.67% of the mass of 1 mol of the hydrate, what is the value of x?
October 22, 2007

Chemistry
that doesn't answer the question. what is the molecular formula of capsaicin and please show work
October 22, 2007

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