# Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. 2x + 10y = 58 -14x + 8y = 140

91,718 questions, page 239-
## chemistry

A buffer is made by adding 0.300 mol HC2H3O2 and 0.300 mol NaC2H3O2 to enough water to make 1.00 L of solution. The pH of the buffer is 4.74 . Calculate the pH of this solution after 0.020 mol of NaOH is added.

*asked by Ericka on December 10, 2009* -
## chem

When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube? What are the colours in each of the 2

*asked by crystal on March 1, 2011* -
## chemistry

When varsol and iodine in potassium iodide aqueous solution is mixed, two phases form. What are the colours in each of the 2 phases when 2ml of I2/KI aqueous solution plus 2 ml of varsol are mixed in a test tube? What are the colours in each of the 2

*asked by Andrea on February 15, 2011* -
## Chemistry

Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a

*asked by Lori on February 18, 2013* -
## Chemistry

Hi! I am doing this chemistry lab of solubility curve of a solid investigation and this is for KCl. The purpose of this lab is to investigate the relationship between the solubility of potassium chloride and the temperature of its solution and to create a

*asked by Lori on February 18, 2013* -
## Algebra A

write a short story problem that can be solved in one step. Write an equation that represents the problem. Name the property used to solve the problem, and then solve the problem. PLEASE HELP WITH THIS ASAP!!!

*asked by Lesley R. on January 25, 2019* -
## MATH

A company sells cardboard that is thick. Write an equation to solve for the number of sheets of cardboard, c, in a pile that is thick. What must be done to both sides to solve the equation?

*asked by JOHN on August 24, 2012* -
## Math for oobleck

Find the values of b such that the function has the given maximum value. f(x) = −x^2 + bx − 14; Maximum value: 107 (smaller value): b= (larger value): b= oobleck said "just solve -14 - b^2/-4 = 107" but i really don't know how to solve what oobleck

*asked by anonymous on March 29, 2019* -
## math

How do I solve this? A mixture of nuts has a ratio of 5 parts peanuts to 3 parts cashews. How many ounces of cashews are in a 24 oz mixture? I am thinking 9 oz., but how do you write a problem to solve this

*asked by Linda on January 24, 2012* -
## science physics

1.) What is the Magnitude of the electrostatic force on a +5 C charge 1.75 m to the left of a -2.5 C charge? (show your work) 2.) In What direction does the force on the +5 C charge act? 3.)Calculate the magnitude of the electric field of the -2.5 C charge

*asked by Todd on May 14, 2013* -
## physics

Shows three boxes connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The mass of the boxes are mA = 5 kg, mB = 2 kg, and mC = 3kg. Given that there is no friction between box A and box B with

*asked by HL on June 27, 2019* -
## Chemistry

Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and

*asked by Anonymous on March 16, 2013* -
## Chemistry

Suppose it is a hot summer day (40.0 degrees C = 104.0 degrees F), and you have left a can of hairspray outside so the gas within it is now at the same temperature of its surroundings. As part of your chemistry lab class, you have to build a safe and

*asked by Tonya on March 16, 2013* -
## Geography

A traveler leaves Lima, Peru ( approximately 12 degrees S. Lat. And 90 degrees W. long.) at 8:00 am on Tues. Oct. 3rd and travels for 14 hrs before arriving in Sydney, Australia ( approx. 34 degrees S and 150 degree E). what time and what day would the

*asked by matt on January 30, 2007* -
## science

the brains of left handers may be more sensitive to drugs, says a Swiss researcher, that may be why more people are right handed. Peter Irwin of the chemical firm Sandoz limited, in Basel, gave 88 subjects 12 different drugs, the used electroencephalograms

*asked by kizzi on June 4, 2016* -
## some algebra help (radicals)

I hope I am writing this down right.. I am trying to do some practice questions to learn 10^5 (sqrt)2y - 4^5 (sqrt)2y I am trying to figure out how to solve this They gave us some answers to choose from, but I am clueless on how to solve this 6y ^5 (sqrt)2

*asked by Cassie on May 6, 2007* -
## math

Use a calculator and systematic trial to approximate each square root to 2 decimal places. SHow your work. a) square root of 20= B) Square root of 55= c)square root of 115= What would systematic trial mean and what do they mean by approximate each square

*asked by rebecca on April 13, 2009* -
## Math

Help Please: Please Help 1.Essay:Show all work,Find the Product. (x^2-2)(x^3-4x+9) 2.Find the product:(2x-4y)(2x+4y) 4.Find the product:(8x-3y)^2 a.64x^2+9y^2 b.64x^2-9y^2 c.64x^2-48xy+9y^2 d.64x^2-48xy-9y^2 (b)

*asked by Ms.Ellis on July 21, 2011* -
## Chem

You've just prepared a solution by transferring 20.0 g of glucose into a 1.0 - L volumetric flask, and adding water to the mark. Calculate the concentration of the glucose solution in terms of millimoles/Liter, mg/mL, and % (m/v). Ok, I think i'm

*asked by Britt on September 7, 2009* -
## mathematics

the pretty perfume company designed a new perfume bottle. The bottle is to be a spherical shape with a diameter of 7cm. a) determine the volume and surface area of this bottle. b) The spherical bottle has a conical shaped lid with a diameter of 5cm and a

*asked by Dolceza on June 3, 2010* -
## Functions/Logarithims

Energy is needed to transport a substance from outside a living cell to inside the cell. This energy is measured in kilo calories per gram molecule, and is given by E = 1.4 log (C1) / (C2 where C1 represents the concentration of the substance outside the

*asked by Steph on March 8, 2012* -
## Math

the pretty perfume company designed a new perfume bottle. The bottle is to be a spherical shape with a diameter of 7cm. a) determine the volume and surface area of this bottle. b) The spherical bottle has a conical shaped lid with a diameter of 5cm and a

*asked by Dolcez on June 3, 2010* -
## History

Which accurately describes the role of British corporations in the New World and their effect on colonists’ opinions of England’s monarchy? colonist were forced to purchase their goods only from British corporations, adding a colonial animosity toward

*asked by malia on October 27, 2017* -
## TX_HISTORY

how did farming continue to be profitable for landowners even after the end of slavery a.landowners used former slaves to work for free. b.Landowners used child labor. c.landowners took advantage of sharecroppers d.landowners only allowed former slaves to

*asked by HELP ASAP on January 29, 2018* -
## physical

A 0.8 kg block of wood has an initial velocity of 0.25 m/s as it begins to slide across a table. The block comes to rest over a distance of 0.72m. a) what is the average frictional force on the block? b)How much work is done on the block by friction? c)How

*asked by sara on August 17, 2012* -
## Math

Lamar wants to slice a 35-ounce tomato and a 28-ounce tomato into pieces of the same weight. He finds the greatest common factor of the tomato weights to determine the weight of each piece. What is the greatest common factor of 35 and 28? Show your work.

*asked by Help on March 31, 2015* -
## math

Ok i got 7 questions from connexus ok 1.Which of the following could be represented by -8? A.a drop of 8 meters B.8 T-shirts C.sea level in 8 places of the world D.8*C above zero 2.Compare. Use < , = , or > 5+(-4)___-14+(-7) A.= B.< C.> 3. Order the

*asked by i need yo mama's help on March 15, 2019* -
## College mechanic vibration

A half-car model of an automobile suspension system is shown below. You are to design its suspension systems (values of spring constants and damping constants). Generally, for ride comfort, it is desired to have the bounce motion at low frequency and the

*asked by Phillip on October 25, 2009* -
## College mechanic vibration

A half-car model of an automobile suspension system is shown below. You are to design its suspension systems (values of spring constants and damping constants). Generally, for ride comfort, it is desired to have the bounce motion at low frequency and the

*asked by joe on October 18, 2010* -
## Math

ok we got this packet that has an answer key and we g0tta show our work of how to get the answer. okayyy... they all seem like really easy problems s0 i think im just dumbbb "a bag has 6 red and 2 white marbles. If two marbles are selected, what is the

*asked by John on April 24, 2008* -
## Chemistry

Colligative Properties The freezing point of distilled water was determined by recording a thermogram: -0.176. The freezing point of a 0.200 m (molality) solution containing an unknown, ionic compound was determined by recording a second thermogram. a.

*asked by Sam on January 28, 2014* -
## Math

Alex puts his spare change in a jar every night. If he has $11.09 at the end of January, $22.27 at the end of February, $44.35 in April, $75.82 in July, $89 in August, and $114.76 at the end of October, perform a linear regression on this data to complete

*asked by Beth on January 23, 2014* -
## Physics

Tarzan plans to cross a gorge by swinging in an arc from a hanging vine (see Fig). If his arms are capable of exerting a force of 1200 N on the rope, what is the maximum speed he can tolerate at the lowest point of his swing? His mass is 84 kg and the vine

*asked by Ryan on September 30, 2016* -
## accounting

Anzlyzing financial statement effects of accounting for bad debits using the allownace method. Duffy Bros. uses the allowance method to account for bad debets expense. Duffy experienced the following four events in 2008: 1.Recognition of 64,000 of service

*asked by Chopsticks on February 1, 2009* -
## chem

Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

*asked by sabrina: This is how the question is written. on November 28, 2012* -
## CHEMISTRY

Suppose that you have 0.500 L of each of the following solutions, and an unlimited supply of water. (Note: C9H7NHBr is a salt containing the ions C9H7NH+ and Br− and C9H7N is quinoline, an organic base with pKb = 6.24 at 298 K. If you like, you may

*asked by sabrina on November 27, 2012* -
## Physics B

part 1 A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are placed on the coordinate system as follows: a 1.5 kg object at the origin, a 3.4 kg object at (0 m,1.8 m), and a 4.5 kg object at (4.2 m,0 m). THANK

*asked by Mary on November 4, 2012* -
## Chemistry

Determine the molarity of a 15.0 % by mass Hydrogen Peroxide solution. The density of Hydrogen Peroxide is 1.054 g/mL. The 15.0% by mass can be broken apart into 15.0 g Hydrogen Peroxide and 100.0 g solution. Use the density of Hydrogen Peroxide solution

*asked by Jenna on February 1, 2015* -
## Statistics

A list of transactions contains 100 numbers: 60 gains and 40 losses. The gains are positive numbers and the the losses are negative numbers. The units are thousands of dollars. For the 60 gains, the average is 18 and the SD is 7.5. For the losses the

*asked by Sarah on September 3, 2015* -
## Math

Let a, b, and m be integers, and m ≥ 2. Prove that: ab ≡ [ (a mod m) · (b mod m) ] (mod m). So I tried proof by cases: Assume ab ≡ [(a mod m) ∙ (b mod m)] mod m is true. Then ab mod m = [(a mod m) ∙ (b mod m)] mod m, and (ab-[(a mod m) ∙ (b

*asked by Kid on November 9, 2018* -
## chemistry

how would i calculate; a 50g sample of water at 100 degrees is poured into a 50g sample of water at 25 degrees. with a specific heat of water (l) being 4.184 j/g degrees C.what will be the final temperature of the water? heat gained + heat lost = 0

*asked by Noreen on January 14, 2007* -
## math correction

solve: x -8 = 4 + 8 +8 x = 12 my answer is x = 12 solve: 80 = 10x -- --- 10 10 8 = x my answer is x =8 solve: 3x= -12 -- --- 3 3 x = -4 my answer is x = -4 Solve: 12 -3x = 9 -12 -12 -3x = -3 --- --- -3 -3 x = 1 my answer is x = 1 ok on all of them.

*asked by jasmine20 on January 11, 2007* -
## PHYSICS

the diagram shows a skateboarder starting a run from Position P (2.5m) at 2.6 m/s. The mass of the skateboarder system (boarde + board) = 74.5kg. Assume that frictional forces can be ignored. a)calculate the speed of the skateboarder at position a(1.5 m)

*asked by Sarah N H on January 30, 2010* -
## chemistry

a) What is fellesioneffekten? Veronal is a barbiturate (structure see above). Barbiturates is a substance class which occur in a variety of drug classes, including sleep medications (hypnotikasedativa), in painkillers (anesthetics) and anticonvulsants.

*asked by Maria on September 9, 2016* -
## Physics

1. What is the best way to determine levelness? Plot Position versus Time and compare the linear fit from each direction of travel; slopes should be equal. See if the Acceleration versus Time for both directions are both zero. Plot the Acceleration versus

*asked by Sandhya on March 27, 2008* -
## Please Help Me Math

Find the sum and express in simplest form. Show all work: x^2 2x-15 ----- *------ x^2-9 x^2-9 *I don't get this at alll.Plz help me. I assume you are trying to add, since the problem says "find the sum" and express in simplest form. x^2/(x^2-9) +

*asked by Margie on February 24, 2007* -
## Physics

A block is pushed 2 m along a fixed horizontal surface by a horizontal force of 10 N. The opposing force of friction is 0.4 N (a)How much work is done by the 10 N force? (b)what is the work

*asked by Queenesther on November 15, 2018* -
## Algebra

Jan's pay is in direction variation to t he hours she works. Jan earns $54 for 12 hours of work. How much will she earn for 18 hours work?

*asked by Direction Variation on January 22, 2018* -
## Math 111

Suppose you have a job that requires that you work at least 25 hours but no more than 40 hours per week. Write an inequality, using t, that gives the number of hours you work each week.

*asked by Chelsea on January 25, 2010* -
## Science

A farmer wants to determine if a new fertilizer gives her a better crop yield than her old fertilizer. She spreads the old fertilizer in field A, which has a brand new irrigation system. She spreads the new fertilizer in field B, which has an irrigation

*asked by Sam Winchester on August 18, 2016* -
## Physics

A block of mass m1 is connected to an empty bucket of mass 1.35 kg by a cord over a frictionless pulley. The coefficient of the static friction between the table and the block is 0.45 and the coefficient of kinetic friction between the table and the block

*asked by Mawuli on May 2, 2011* -
## History

Which BEST describes how the bubonic plague affected the feudal system in medieval Europe? A) The plague caused most of the artisans to leave Europe, so the peasants did not have the proper tools for farming. B) The plague shut down all trade routes

*asked by >>>Wolfie<<< on March 29, 2019* -
## Statistics

The weight of adult green sea urchins are normally distributed with a mean 52g and standard deviation 17.2g? A. Find the percentage of adult green sea urchins with weighs between 50g and 60g My answer/work: normalcdf (50, 60, 52, 17.2) = .225, 23% B.

*asked by Anonymous on March 19, 2013* -
## science

I have been given the task to prove a hypothesis by conducting an experiment. Hypothesis: A candle will burn slower in a cooler environment. Independant variable: Temperature of the room (three temperatures) Dependant variable: Length of the candle after

*asked by anonymous on July 26, 2018* -
## English

Find the verb. Exactly how does the brain work? verb: work

*asked by Kimmy on August 14, 2016* -
## statistics

The average amount of time people spend on facebook each day is 71 minutes, with a standard deviation of 4.7 minutes. Are you more likely to select a random person that spends less than 68 minutes per day, or a group of 35 people that spend on average less

*asked by ME on November 17, 2012* -
## Calculus 1

Of the infinitely many lines that are tangent to the curve y = −4 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

*asked by TayB on November 12, 2015* -
## math

If I have a $1000 charge on a credit card charging 1% interest using the adjusted balance method, minimum payment due is $40. How much will you save in interest charges in june by paying $80 instead?

*asked by Anonymous on March 7, 2012* -
## CDA

Dr. Muse, a sociocultural theorist, speculates that children's ability to reminisce about the past can be promoted through adult teaching. This is an example of a A. Theory B. Research Question C. Hypothesis D. Research method

*asked by PI on February 20, 2015* -
## Education

Dr. Muse, a sociocultural theorist, speculates that children's ability to reminisce about the past can be promoted through adult teaching. This is an example of a A. Theory B. Research Question C. Hypothesis D. Research method

*asked by PI on February 19, 2015* -
## chemistry grade 12

Thanks DrBob222 for previous answers. Question: Balance the following reactions by the oxidation number method. a) I2 + HNO3 --> HIO3 + NO2 + H2O b) MnO4- + H+ + Cl- --> Mn2+ + Cl2 + H2O

*asked by Ron on November 17, 2009* -
## art

When sewing a new dress for yourself, the best method of marking the hem length is to A. ask someone to mark it for you. B. pin it an even distance from the waistline. C. chalk an even line from the lower edge. D. do it yourself with an adjustable hem

*asked by Djenica on November 10, 2018* -
## Calculus 1

Of the infinitely many lines that are tangent to the curve y = −4 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

*asked by TayB on November 13, 2015* -
## Calculus

Of the infinitely many lines that are tangent to the curve y = −7 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

*asked by Laura on November 20, 2014* -
## Calc 1

Of the infinitely many lines that are tangent to the curve y = −6 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

*asked by TayB on May 5, 2015* -
## Statistics

If a researcher were studying the effects of a teaching method on patient learning outcomes, how must he or she word the hypothesis to use a t-test to test for statistical differences? What type of data must he or she collect? Why?

*asked by Lisa on May 30, 2010* -
## HR

The degree to which the information provided by selection methods enhances the effectiveness of selecting personnel in organizations refers to the selection method's A. reliability. B. utility. C. generalizability. D. validity. B

*asked by Blue on June 24, 2018* -
## Calc 1

Of the infinitely many lines that are tangent to the curve y = −6 sin x and pass through the origin, there is one that has the largest slope. Use Newton's method to find the slope of that line correct to six decimal places.

*asked by TayB on May 2, 2015* -
## Calculus (math)

The volume of the solid obtained by rotating the region enclosed by y=1/x4,y=0,x=1,x=6 about the line x=−2 can be computed using the method of cylindrical shells via an integral. it would be great if you can just even give me the function inside that I

*asked by Thank you in advance :) on December 15, 2014* -
## Statistics

If a researcher were studying the effects of a teaching method on patient learning outcomes, how must he or she word the hypothesis to use a t-test to test for statistical differences? What type of data must he or she collect? Why?

*asked by Lisa on May 30, 2010* -
## English

please check my answer thanks :) In addition to the information you include in a document, the_________ of your writing sends a message to the reader tone method length phase I picked tone

*asked by Anonymous on November 11, 2007* -
## Calculus

Find any absolute maximum and minimum and local maximum and minimum for the function f(x)=x^3-4x+5 on the interval [0,5). Make sure to prove that these points are max/min values. THis is what I did. f'(x)=3x^2-4=0 x= +/- 2/sqrt3 -2/sqrt3 is outside of

*asked by Janet on April 17, 2011* -
## Algebra

Please explain to me how to do these problems...Thanks 1. Find the value of x...x/6-x/8=1 2. The combined resistance of two resistors r1 and r2 in a parallel circuit is given by the formula rt= 1/(1/r1)+ (1/r2)...simplify the formula... 3. Fungicides

*asked by Algebra Help on May 23, 2007* -
## chemistry

. Given the following stocks 4M NaCl, 3M NaOH, 5M HCl (a) Prepare 200ml of a solution containing 0.5M NaCl and 0.1M (b) Prepare 300ml of a solution containing 0.5M NaCl (c) Prepare 200ml of a solution containing 0.5M NaCl and 0.1M HCl

*asked by tom on April 15, 2011* -
## chem

Show work 1. How many moles of oxygen will occupy a volume of 2.50 liters at 121.6 kPa and 331 K? 2. An unknown volume of chlorine gas (Cl2) is resting at 127 °C at a of pressure 152.4 kPa. If the gas weighs 191.4 g, what is the volume? 3. A 2.917 mole

*asked by theresa on February 22, 2015* -
## Biology Chemistry Part

I'm trying to calculated the rate of reaction In this lab I took a 50 mL beaker and poured in 10 ml of cold distilled water into it, I then poured in 30 ml of original enzyme solution (I believed we used cold potato juice or something), I then took a piece

*asked by Kate on September 26, 2010* -
## English

1. He is doing voices of the former President Kim Youngsam at the school talent show. 2. He is imitating the voices of the former President Kim Youngsam at the school talent show. 3. He is mimicking the voices of the former President Kim Youngsam at the

*asked by rfvv on April 7, 2013* -
## Chemistry

I have a question about buffers. Part A So it starts with 20ml 0.1 sodium acetate and 25ml 0.1 acetic acid. Calculate ph of buffer is 4.74 because the acid and conjugate base have the same molarity correct? So the Ph is just pKa (1.8e-5)? Part B So the

*asked by Rio on March 31, 2010* -
## physics

In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a

*asked by niki on April 15, 2011* -
## physics

In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a

*asked by monique on April 14, 2011* -
## physics

In a solar water heater, energy from the Sun is gathered by water that circulates through tubes in a rooftop collector. The solar radiation enters the collector through a transparent cover and warms the water in the tubes; this water is pumped into a

*asked by Ashley on April 1, 2013* -
## Phyics

*asked by HELP PLEASE on April 12, 2013* -
## Consumer Math

Could someone help me answer these!? I feel like no one else will help, and my teachers aren't really any help either. 1) a) You purchase a new car for $16,725.00 plus 6.15% sales tax. The down payment is $1,400.00 and you have an average credit rating.

*asked by Absoulutely Outofoptions on May 18, 2016* -
## chemistry

In a constant-pressure calorimeter, 60.0 mL of 0.930 M H2SO4 was added to 60.0 mL of 0.320 M NaOH. The reaction caused the temperature of the solution to rise from 22.68 °C to 24.86 °C. If the solution has the same density and specific heat as water

*asked by Amy on May 17, 2016* -
## chemistry

This is my third time to ask this and no one has answered. Please help. An enzyme-catalyzed reaction is carried out in a 50-mL solution containing 0.1 M TRIS buffer. The pH of the reaction mixture at the start was 8.0. As a result of the reaction, 0.002

*asked by alan on February 3, 2008* -
## Help again...Math!!

Two cars leave town going in the same direction. One travels 55 mph and the other travels 65 mph How long will it take before they are 180 miles apart? Hint: We do know that one car is 180 miles ahead of the other, so the slow car's distance can be

*asked by Jessica on November 15, 2006* -
## Math

- Anurag is buying a house for $100,000 and needs a mortgage loan. Bank A wants him to repay the loan in 240 months with monthly payment of $600.72. Bank B wants him to repay the loan in 360 months with a monthly payment of 389.94. Which bank should he

*asked by Lil on May 17, 2016* -
## Chemistry

I don't know how to start this problem. Someone can help me please. One dm3 of a solution was prepared containing 0.0040 mole of Pb(NO3)2. The Ksp of PbCI2 for the existing conditions is 2.4 x 10^-4. From the list below, choose the smallest numbers of

*asked by Susie on May 23, 2010* -
## Math- Truth Tables

Construct a Truth Table for the given statement: 1. p implies ~(pVq) 2. ~(p AND q)Vp I thought this is how to do it, but my teacher marked it incorrect: 1. p q ~(pVq) p implies ~(pVq) T T F T implies T= T T F F T implies F= F F T F F implies F= T F F T F

*asked by Joseph on December 15, 2007* -
## Math

Construct a Truth Table for the given statement: 1. p implies ~(pVq) 2. ~(p AND q)Vp I thought this is how to do it, but my teacher marked it incorrect: 1. p q ~(pVq) p implies ~(pVq) T T F T implies T= T T F F T implies F= F F T F F implies F= T F F T F

*asked by Joseph on December 15, 2007* -
## Chemistry

At a certain temperature the vapor pressure of pure benzene is measured to be 322. torr . Suppose a solution is prepared by mixing 138.g of benzene and 91.2g of heptane . Calculate the partial pressure of benzene vapor above this solution. 3 sig figs!

*asked by Elizabeth L. on April 11, 2012* -
## science

solubility equillibrium is dynamic equillibrium between undissolved excess solute and solvent or aqueous solution and crystal in a saturated solution. so rate of dissolving = rate of crystalization if any more solute is added it will disrupt equillibrium

*asked by micheal on July 21, 2009* -
## Statistics

Eric has computed that it takes an average (mean) of 17 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to his job. One day it took Eric 21 minutes to get to work. You would use the formula for transforming a raw

*asked by Ginger on June 18, 2011* -
## math

Automobiles and small trucks account for 84% of the travel to and from work in the United States. What fraction represents all other means of travel to and from work in the United States?

*asked by math illerate on April 25, 2011* -
## english

participal pharse: admired by many other artist,picasso work changed considerably overthe years. B) admired by many other artist. c)over the years d) picassos work .i think its c

*asked by henry on July 14, 2009* -
## math 115

Automobiles and small trucks account for 84% of the travel to and from work in the United States. What fraction represents all other means of travel to and from work in the United States?

*asked by Sally on May 3, 2009* -
## physics

a person lifts a 4.3 kg centimeter block a vertical distance of 1.10m. and then carries the block horizontally a distance of 10.0m. How much work is done by the person? How much work is done by gravity?

*asked by Kalynn on January 14, 2013* -
## 11th grade

(a) What is the minimum work needed to push a 1150 kg car 240 m up a 17.5° incline with zero friction? (b) What is the minimum work needed if the effective coefficient of friction is 0.20?

*asked by Luricela on February 13, 2010* -
## science

Using the equation: work = force x distance tell me how much work is done when a boy applies 5 Newtons of force over a distance of 2 meters. A)10 Watts B)10 Joules C)10 Amps D)10 Newtons

*asked by faithwest98 on February 24, 2013* -
## English to Brady

13. Select the antecedent of the pronoun in the following sentence. The strikers will return to work when the union representatives have completed their negotiations. A. work B. strikers C. representatives D. negotiations C?

*asked by Sarah on November 11, 2014*

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