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August 3, 2015

Search: a metal sample weighing 45.0 g and at a temperature of 99.1

Number of results: 22,068

Chemistry
A metal crystallizes in a face-centered lattice. The radius of the atom is 198pm and the density of the element is 6.57g/cm^3. What is the identify of the metal?
July 1, 2013 by Mark

Chemical Bonds
metal cations are atoms that have a positive charge. what type of bond is a metal cation likely to form?
January 28, 2014 by Cindy

chem
A cubic piece of metal measures 3.00cmcm on each edge. If the metal is nickel, whose density is 8.90 g/cm3{\rm g/cm}^3, what is the mass of the cube?
September 16, 2014 by dae

College Chemistry
a sample bulb contained 0.712g of H2(g) at a certain temperature and pressure. At the same temperature and pressure, the bulb can hold 13.0g of an unknown gas. What is the molar mass of the unknown gas?
October 24, 2011 by Anonymous

physics
In an old house, the heating system uses radiators, which are hollow metal devices through which hot water or steam circulates. In one room the radiator has a dark color (emissitivity = 0.818). It has a temperature of 64.8 oC. The new owner of the house paints the radiator a ...
May 15, 2012 by RM

Physics
In an old house, the heating system uses radiators, which are hollow metal devices through which hot water or steam circulates. In one room the radiator has a dark color (emissitivity = 0.804). It has a temperature of 65.9 oC. The new owner of the house paints the radiator a ...
December 5, 2012 by StressedStudent

chemistry
At 16C a sample of ammonia gas exerts a pressure of 11.7 atm. What is the pressure when the volume of the gas is reduced to one-fourth of the original value at the same temperature so the inital Temp=16 C initial Pressure. 11.7 final pressure-unknown temperature-same what next?
October 17, 2010 by april

physics
A piece of metal has a mass of 85cg and a volume of 450L. What is its density in g/cm3? What would be the mass of 300 cm3 of this metal? What would be the volume of 00 ounces of this metal?
March 10, 2014 by Anonymous

Physics
A2.0-kg piece of steel with a temperature of 70 degree C is submerged in 1.0 kg of water at 15 degree C. At what temperature does the water/metal system reach equilibrium? The specific heat of steel is 0.107 cal/(g*K). Specific Heat of water is 4185 J/(kg*K.( The answer is 27 ...
July 1, 2012 by AL

Statistics
. A random sample is selected from a normal population with a mean of __40 and a standard deviation of __10. After a treatment is administered to the individuals in the sample, the sample mean is found to be M _ 42. a. How large a sample is necessary for this sample mean to be...
January 26, 2012 by Sharon

chemistry
A sample of gas is at a pressure of 1 atm , a volume of 1 L , and a temperature of 25 degrees celsius. What would happen to the pressure if the volume were reduced to 0.5 L and the temperature increased to 250 degrees celsius?
November 8, 2010 by Anonymous

Chemistry
Assume that 57.0 cal of heat is applied to a 28g sample of sulfur at 27 degrees C. What is the final temperature of the sample if the specific heat of sulfur is 0.175 cal/g degrees C?
December 9, 2012 by Marie

Chemistry
3. A liquid hydrocarbon (Cx Hy) is found to be 16.37% H by mass. A 1.158-g vaporized sample of the hydrocarbon has a 358 mL volume at 71.0 C and 749 mmHg. what is the molecular formula for this hydrocarbon? 4. A 1.00 g Sample of C7H603 (s), us completely burned in a bomb ...
June 21, 2011 by Katrina

chemistry
A 1.500-g sample of a mixture containing only Cu2O and CuO was treated with hydrogen to prduce 1.252 g pure copper metal. Calculate the percentage composition (by mass) of the mixture.
September 26, 2010 by kelly

chem
A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide. Give the number of moles of each element to support you answer.
November 14, 2010 by sam

Chem
A 0.1098 g sample of copper metal is dissolved in 34 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a total volume of 209.5 mL. (Calculate the molarity of Cu2+.)
November 2, 2011 by ALMA

Chemistry
A 0.1052 g sample of copper metal is dissolved in 55 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a total volume of 208.5 mL. (Calculate the molarity of Cu2+.)
June 21, 2013 by Ashley

Chemistry
A 0.1052 g sample of copper metal is dissolved in 55 mL of concentrated HNO3 to form Cu2+ ions and then water is added to make a total volume of 208.5 mL. (Calculate the molarity of Cu2+.)
June 21, 2013 by Ashley

Probabilty & Statistic
A random sample is selected from a normal population with a mean of __40 and a standard deviation of __10. After a treatment is administered to the individuals in the sample, the sample mean is found to be M _ 42. a. How large a sample is necessary for this sample mean to be ...
January 23, 2012 by Sharon

Chemistry
Suppose that in your experiment you conducted in lab you neglected to account for pressure due to water vapor in your collected sample of hydrogen gas. How, if at all, would this affect your final value of atomic weight of the metal?
November 12, 2009 by Lillian Nguyen

chemistry
a 5.00g sample of Al pellets (specific heat=0.89J/oC*g) and a 10.00g sample of Fe pellets (specific heat=0.45J/oC*g) are heated to 100.0oC. The mixture of hot iron Al is then dropped into 92.1g of water at 21.8oC. Calculate final temp of metal and water mixture, assuming no ...
November 6, 2007 by Rebekah

SAT Math
A cubical block of metal weighs 6 pounds. How much will another cube of the same metal weigh if its sides are twice as long?
June 3, 2010 by Hardy

Chemistry
A metal foil has a threshold frequency of 5.45 1014 Hz. Which of the colors of visible light have enough energy to eject electrons from this metal.
October 10, 2013 by Jake

physics
A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless. Neither the plunger nor...
April 10, 2014 by Paige

physics
A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless. Neither the plunger nor...
April 10, 2014 by Paige

physics
A 0.527 kg metal cylinder is placed inside the top of a plastic tube, the lower end of which is sealed off by an adjustable plunger, and comes to rest some distance above the plunger. The plastic tube has an inner radius of 7.07 mm, and is frictionless. Neither the plunger nor...
April 11, 2014 by Paige

Physics
A 1.45 mol sample of an ideal gas (γ = 1.40) is carried through the Carnot cycle described in the figure below. At point A, the pressure is 28.5 atm and the temperature is 600 K. At point C, the pressure is 1.00 atm and the temperature is 400 K. How do I get the pressure ...
June 6, 2011 by Alex

chemistry
A sample of gas has increased in temperature from 20 Celsius to 22 Celsius. Which of the following happens as the temperature of the gas goes up? A.The gas undergoes a phase change. B. The velocity of the gas particles decreases. C.The kinetic energy of the particles ...
July 29, 2011 by kendra

Chemistry
Determination of Ksp, ΔG, ΔH and ΔS for Ca(OH)2. *** Need help on problem #3 & #4 *** CALCULATIONS: 1. Calculate the average solubility of calcium hydroxide, Ca(OH)2, at each temperature. 2. Calculate the Ksp for Ca(OH)2 at each temperature. 3. Calculate the...
March 18, 2014 by Airin

Chemistry
A sample of gas with a volume of 14.9 liters at 2.6 atmospheres pressure and a temperature of 25C is allowed to expand to a volume of 29.3 liters at a temperature of 15C. What is the final pressure (atm)atof the gas?
March 25, 2013 by Linzy

Chemistry
A 63 gram block of an unknown metal at 88 degrees C was dropped into an insulated flask containing approx. 30 g of ice and 30 g of water at 0 degrees C. After the system had reached a steady temp. it was determined that 12.1 g of ice had melted. What is the specific heat of ...
May 15, 2007 by Lindsay

gre math prob of a sample
sample standard deviation = 3 sample mean = 68 n=30 what is the probability that one student selected at random from the sample will have a height within one sample standard deviation of the sample mean? a. 1.00 b. 0.73 c. 0.57 d. 0.23
January 10, 2012 by luckybee

Physics
A metal tank with volume 3.10 L will burst if the pressure of the gas it contains exceeds 100 atm. (a) If 11.0 mol of an ideal gas is put into the tank at a temperature of 23.00C, to what temperature can the gas be warmed before the tank ruptures? You can ignore the thermal ...
February 25, 2010 by Baker

chemistry
A metal rod has a mass of 17.62 g. A graduated cylinder contains 29.9 mL of water. The metal rod is added to the cylinder. The final water level in the cylinder is 36.1 mL. What is the density of the metal rod?
October 7, 2014 by suzy

chemistry
a sample containing 1.50 mol neon gas has a volume of 8.00L.what is the new volume of the gas in liters when the following changes occur in the quantity of the gas at constant pressure and temperature? a.a leak allows on-half of the neon atoms to escape. b. a sample of 25.0g ...
June 27, 2010 by Jetta

IPC-Science
The specific heat of gold is 0.031 calories/gramC. If 10.0 grams of gold were heated and the temperature of the sample changed by 20.0C, how many calories of heat energy were absorbed by the sample? 6.2 calories 0.016 calories 6,451 calories 0.062 calories
January 10, 2014 by Kali

chemistry
A sample of helium at 20 C occupies a volume of 3.63 L at a pressure of 3.07 atm. What volume does this helium sample occupy if the pressure is reduced to 2.43 atm while maintaining the temperature at 20 C?
April 23, 2014 by Michelle

science
The specific heat of silver is 0.057 calories/gramC. If 10.0 grams of silver were heated and the temperature of the sample changed by 20.0C, how many calories of heat energy were absorbed by the sample? (A)3,508 calories (B)0.029 calories (C)11.4 calories (D)0.114 calories
October 17, 2011 by emily

Energy multiple choice question
Which of the following samples has the highest specific heat capacity? a) A 100 kg sample of lead requires 13 000 J to increase its temperature by 1 K b) A 50 g sample of water releases 1050 J as it cools by 5 degree Celsius c) A 2 kg sample of copper receives 2340 J of ...
April 12, 2014 by Liz

Chemistry
I want to see if i got my answer correct for #1 but I need help on #2 1.A 150g aluminum pan containing 500g of water is heated on a stove for 5 minutes. The temperature goes from 23.5C to 48.9C. How much heat was absorbed. (s for Al is .900j/g C, s for H2O is 4.184 j/g C) I ...
March 8, 2011 by Ashley

Chem
I want to see if i got my answer correct for #1 but I need help on #2 1.A 150g aluminum pan containing 500g of water is heated on a stove for 5 minutes. The temperature goes from 23.5C to 48.9C. How much heat was absorbed. (s for Al is .900j/g C, s for H2O is 4.184 j/g C) I ...
March 8, 2011 by Ashley

Chemistry
A sample of iron weighing 15.0 g was heated with potassium chlorate (KClO3) in an evacuated container. The oxygen generated from the decomposition of KClO3 converted some of the Fe to Fe2O3. If the combined mass of Fe and Fe2O3 was 17.9g,calculate the mass of Fe2O3 formed and ...
August 22, 2013 by Francis

Chemistry
The Densities of Liquids and solids O.k. so here is my problem. I will give you the whole problem just incase my mistake is somewhere else, but the volume for the metal and the density for the metal in the end seem to be wrong. (Density of unknown liquid) Mass of empty flask ...
August 22, 2007 by Sara

CHEMISTRY
As you may well know, placing metal objects inside a microwave oven can generate sparks. Two of your friends are arguing over the cause of the sparking, with one stating that the microwaves "herd" electrons into "pointy" areas of the metal object, from which the electrons jump...
October 26, 2014 by KTM

Chemistry
When light having a wavelength of 497 nm strikes a metal coating of an emitter, an elector with kinetic energy of 2.52 x 10^-19 is ejected. What is the threshold frequency for this metal?
March 28, 2011 by Kamila

physics
A flexible metal sheet of length 6.0cm, breadth 5.00cm and the average thickness of 0.883cm has a mass of 23.00g. calculate the density of the metal
October 18, 2012 by betty

maths
from a rectangular piece of metal sheet of length and breadth 1.60 m and 80 cm respectively, 3 circular sheets of 20 cm radius are cut out. what area of metal is left?
March 23, 2013 by parth

physics
Light with a frequency of 4.32 1015 Hz strikes a metal surface and ejects electrons that have a maximum kinetic energy of 5.8 eV. What is the work function (in eV) of the metal?
March 25, 2013 by John

Physics
When UV light of wavelength 295nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.50eV. What is the work function of the metal? W0 in eV
April 23, 2013 by Sheila

physics
a metal wire has a resistance of 8 Ohms at a temperature of 20 degrees. if the same wire has a resistance of 8.40 Ohms at 70 degrees. What is the resistance of this wire in Ohms when its temperature is -10 degree celsius
November 13, 2013 by Anton

chemistry
What are properties of metal and non-metal?
June 7, 2010 by Anonymous

chemistry
how do we determine Cmolar ,metal from Cs,metal
November 14, 2013 by Anonymous

math
(TEMPERATURE CHANGE) The rate at which the temperature of an object changes is proportional to the difference between its own temperature and the temperature of the surrounding medium. Express this rate as a function of the temperature of the object
November 12, 2011 by math

statistics
Your samle is normally distributed with a mean age of 57. The standard deviation iin this sample is 5 years.The 2000 census shows your sample is older than a randomly selected national sample. The median agein your sample is?
June 3, 2013 by statistics

Analytical Chemistry (Titrations)
About 10ml of concentrated HCl was transferred to a 1-L volumetric flash and diluted to mark with distilled water. When this solution was used to titrate a sample of pure sodium carbonate, Na2Co3, weighing 0.3054 gram, it took 35.09 ml to reach the methyl red end point. The ...
September 23, 2014 by Alex

chemistry
When a 16.9-g sample of NaOH dissolves in 70.0 g of water in a calorimeter, the temperature rises from 22.4C to 86.6C.
June 16, 2010 by kala

chem
when K temperature increases, the average kinetic energy of the particles in a sample do?
September 14, 2010 by montery

chemistry
At what temperature (oC) will a gas sample occupy 6.1 L if it originally occupies 17.8 L at 27.1oC?
October 13, 2010 by kellie

Chemistry
At what temperature (oC) will a gas sample occupy 9.8 L if it originally occupies 14.2 L at 25.9oC?
October 17, 2011 by Sven

Chemistry
A 26.0 g sample of ice at -17.0C is mixed with 124.0 g of water at 81.0C. What is the equilibrium temperature?C.
April 3, 2014 by Eliza

Chemistry
The temperature of a 2.25L sample of gas decreases from 45.0'C to 20.0'C. What is the new volume?
May 17, 2014 by Han

chemistry
When weighing liquid ethanol, why do you have to place water in the beaker prior to adding the ethanol to that same beaker? We were told to make a to make a 0.40% (wt/vol) stock solution by weighing 400 mg of absolute ethanol into a tared beaker that contained 15 mL of water ...
November 25, 2013 by Anonymous

chemistry
What is the specific heat of a metal if 24.8 g absorbs 65.7 cal of energy and the temperature rises from 20.2 degrees celsius to 24.5 degrees celsius?
September 4, 2012 by jenn

Chemistry
My Chem professor is out for the weekend and I'm confused about what the question is asking or the equations needed... A 10.0-g block of pure nickel (Cp = 0.445 J/g-C) is brought to each of the temperatures below. A sealed beaker containing 15.0 g water at the temperature ...
January 26, 2013 by DeeDee

physics
A simple temperature model for the solar nebula disk is Tdisk(a) = 20 SQRT 100 AU/ a K, (1) where a should be expressed in AU in this equation. (a) Find the temperature in the solar nebula disk at the orbit of Mer- cury, Earth and Jupiter. (b) Where is the ...
November 13, 2014 by kathy

Chem 2
Need help.... calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting reagent.Find nuber of moles of Cu(II) in the sample of CuSO4 x 5H2O that you used. The equal the number of moles of [Cu(NH3)4]x H2O ...
April 2, 2012 by Debbie

physics
A metal rod is 40.125 cm long at 20 C and 40.148 cm long at 35 C. calculate the coefficient of linear expansion of the rod for this temperature range.
February 22, 2012 by selena

physics
A 20 g sample of aluminum at 85 degree is dropped in 500g of water. The resulting temperature of aluminum and water is 25 degree. What is the initial temperature of water?
February 7, 2012 by joan

chemistry
Student A ran all her standards through the AAS at a specified C2H2/air flow rate. Just before she was to run her Cu sample, Student B turned down the flow rae of C2H2, thus lowering the flame temperature. Would students' A results of Cu in their sample be high, low or ...
March 26, 2012 by Jane

math
1. A submarine was suituated 800 feet below sea level. If it ascends 250 feet, what is it new position 2. Metal mercury at room temperature is a liquid. Its melting point is -39C. The freezing point of alcohol is-114C. How much warmer is the melting point of mercury than the...
July 31, 2014 by tsunayoshi

Chemistry 2
calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting reagent.Find nuber of moles of Cu(II) in the sample of CuSO4 x 5H2O that you used. The equal the number of moles of [Cu(NH3)4]x H2O that could ...
April 7, 2012 by Debbie

AP CHEM (URGENT)!!!!!
How can ionization potential and electron affinity be used to predict whether or not a simple synthesis reaction will occur between a metal and a non-metal.
November 2, 2011 by Valm

Physics PLEASE HELP
When UV light of wavelength 295nm falls on a metal surface, the maximum kinetic energy of emitted electrons is 1.50eV. What is the work function of the metal? W0 in eV
April 24, 2013 by Sheila

chemistry
How much heat is necessary to raise the temperature of a 15.0g metal from 15 degrees celsius to 25.0 degrees celsius?
September 27, 2012 by rachel

Physics
A paladin howitzer fires a 46.00 kg projectile towards a 1000 kg metal block resting on a frictionless surface. Just before impact, the projectile is traveling with a horizontal velocity of 529 m/s. After the collision, the embedded projectile and the metal block move along ...
February 2, 2015 by Samiboo711

Chemistry
(a) A 102-g sample of water is placed in an insulated container and allowed to come to room temperature at 21C. To heat the water sample to 41C, how much heat must you add to it? kJ (b) Consider the hypothetical reaction, being run in an insulated container that contains 102...
June 7, 2011 by Lance

Math
1)At 1 p.m., Lin records an outside temperature of 14.8F. At 3 p.m... she records the outside temperature and notices the temperature had increased by 22.6 degrees. What was the temperature that she recorded at 3 p.m.? ( no multiple choice) *my answer is 7.8* 2) (x - 16) + 5...
September 16, 2014 by Anonymous

Chemistry
A sample of zinc metal reacts completly with an excess of hydrochloric acid: Zn(s) + 2HCl(aq) --> ZnCl2(aq) + H2(g) The hydrogen gas produced is collected over water at 25.0 C. The volume of the gas is 78.0 L & the pressure is 0.980 atm. Calculate the amount of zinc metal ...
August 12, 2011 by ChemLover

chemistry
A heater caused the temperature of a 550 g Aluminum block to change from 22 degrees C to 145 degrees C. How many calories were required to heat the metal block?
April 11, 2011 by cam

Statistics
A sample of 106 body temperatures resulted in a mean of 98.2 degrees and a standard deviation of .62 degrees. Use these sample statistics to construct a 98% confidence interval estimate of the standard deviation of body temperature of all healthy humans.
July 20, 2015 by Elizabeth

Chem/Physics
1. The half-life for the (first-order) radioactive decay of 14C is 5730 yr (it emits a β ray with an energy of 0.16 MeV). An archaeological sample contained wood that had only 72 percent of the 14C found in living trees. What is its age? I got 500years? 2. The ...
October 15, 2008 by Anne

Chemistry
Can somebody help me with this question? Zinc metal is placed in a solution of copper ions and undergoes an oxidation-reduction reaction. Which direction is the spontaneous reaction? Zn metal goes into solution. Cu(II) ions come out. Zn + Cu+2 ==> Zn+2 + Cuo Zn metal is ...
February 10, 2007 by Lisa

calculus
A box is contructed out of two different types of metal. The metal for the top and bottom, which are both square, costs $5 per square foot and the metal for the sides costs $2 per square foot. Find the dimensions that minimize cost if the box has a volume of 40 cubic feet.
April 14, 2014 by Griffin Bilskie

Chemistry
A sodium hydroxide sample is contaminated with sodium chloride. A 0.240 gram sample of this impure sample is dissolved in water and titrated with 21.50 mL of 0.130 M H2C2O4. Calculate the percent sadium hydroxide in the impure sample [(mass of NaOH in impure sample/mass of ...
July 15, 2015 by Sam

chemistry
The phosphorus in a completely dried fertilizer sample weighing 0.4498 grams was precipitated as MgNH4PO4*6H2O. The precipitate weight was determined to be 236.8 mg and ignited to Mg2P2O7. The weight of the ignited precipitate was 268.9 mg. Calculate the percent phosphorus. My...
August 31, 2007 by smiley

Math
A scientist is monitoring the temperature of a holding tank containing fish to be released into a river. In one 12-h period, the highest temperature was 10.4C and the lowest temperature was 7.6C. Write an absolute value equation that can be used to report the highest ...
January 6, 2015 by Alex

Math
A scientist is monitoring the temperature of a holding tank containing fish to be released into a river. In one 12-h period, the highest temperature was 10.4C and the lowest temperature was 7.6C. Write an absolute value equation that can be used to report the highest ...
January 11, 2015 by Alex

chemistry
I did an experiment where i put iron nail with zinc metal wrapped around it in agar solution. the solution turned pink. I have to find the anode: anode reaction: cathode (remember, a metal can be an inactive electrode): cathode reaction (there arent any metal ions present, so...
March 10, 2009 by Anonymous

dynamics of rigid bodies
1. An elevator weighing 15 kN starts from rest and acquires an upward velocity of 3 m/sec. in a distance of 6 m. If the acceleration is constant, what is the tension in the cable? 2. A man weighing 70 kg is in an elevator moving upward with an acceleration of 2.5 m/sec2. A. ...
July 7, 2015 by von

chemistry
a 60.0 g sample of chromium at 82.0 degrees celsius was place in 80.0 g of water. Assume there is no loss of heat to the environment. What is the final temperature of the water and chromium? The initial water temperature was 24.0 degrees celsius
November 12, 2013 by Anonymous

Chemistry
How do i calculate the amount of heat required to raise the temperature of an 89 sample of water from 40 to 60.
February 20, 2010 by Kesha

Chemistry
Calculate the amount of heat required to raise the temperature of a 54 g sample of water from 5C to 20.C.
September 15, 2010 by Ben

chemistry
Calculate the amount of heat required to raise the temperature of a 25 sample of water from 7 to 25.
September 20, 2010 by Anonymous

chemistry
a 25.0 sample of nitrogen has a volume of 50.0L and a pressure of 630. mmHg. what is the temperature of the gas?
March 29, 2011 by Anonymous

chemistry
at what temperature will a gas sample occupy 6.6L if it originally occupies 14.1L at 14.4 degrees celcius
June 29, 2011 by cindy

chem
If 7.59 moles of an ideal gas has a pressure of 4.41 atm, and a volume of 71.59 L, what is the temperature of the sample?
December 1, 2013 by dinah

chemistry
A 50g chunk of metal (c=0.0506 j/gC) is heated to 60C. it is then dropped into a calorimeter(c=1.40 j/gC,m=5.0 g)that contains 100.0g of an unknown liquid. the temperature of the liquid raises from 15C to 20C.What is the c of the calorimeter?
September 23, 2014 by liz

physics
How does the resistance of a piece of metal change if both its length and its diameter are reduced to one half their original values? .. im confused because i dont know what the shape of the metal is...please help!
March 7, 2010 by Anonymous

Chemistry
If 200 g. of an unknown metal oxide, M2O3, upon reaction with chlorine yields 376 g of M2Cl2, then the metal M is: a. Indium b. Aluminum c. Gallium d. Silicon e. boron
May 5, 2011 by Kamila

chemistry
A block of metal is 6.88 cm long, 2.03 cm wide, and 1.85 cm high. It has a mass of 215.1 grams. What is the density of this metal. I've tried adding all the cm up and squaring them, dividing them, multiplying but i can't get the answer
February 6, 2015 by paige

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