# 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 799-
## Chemistry

When elemental sulfur,S8,is heated with AgF,a gas forms that contains only sulfur and fluorine. The following tests were done to characterize this gaseous product. *The density of the gas was found to be 0.807g/L at 152mmHg and 35 degrees celsius. *When

*asked by rasuka_geo on November 10, 2009* -
## math(check answers please)

for questions 1-3,find the sum. 1.5 9/13 + 5 9/13= A.13/74 B.10 12/13 C.11 5/13(I PICKED THIS) D.13/142 --------------------------- 2.3 3/15 +4 2/5= A.2 1/2 B.22 4/5 C.7 3/5( I PICKED THIS) D.5/38 -------------------------- 3.3 4/9 + 2 1/3= A.5 1/3 B.18

*asked by Anonymous on December 3, 2013* -
## electriacl safety

What are some important elements that should be included in any good training program. Explain. I will be happy to critique your thinking on this. If this subject isn't thoroughly covered in your text or class notes, you may find some helpful information

*asked by Mary on June 25, 2007* -
## English- poetry

Can anyone find any poetic devices in this poem? (metaphors, similes, personification, etc) AMBITION BY DES WALSH Once upon a time A poor man Named Marcus Sat all day Hoping for food Outside a kitchen door At night he would think Of the golden sands Where

*asked by Leanne on September 22, 2011* -
## English- poetry

Can anyone find any poetic devices in this poem? (metaphors, similes, personification, etc) AMBITION BY DES WALSH Once upon a time A poor man Named Marcus Sat all day Hoping for food Outside a kitchen door At night he would think Of the golden sands Where

*asked by Leanne on September 22, 2011* -
## Spanish (Sra)

Can someone check my work? English: My cousin came over to play. We were running around the living room. My brother and cousin crashed into each other. And my brother cut the corner of his eye open. Spanish: My primo vino a jugar, Nosotros estábamos

*asked by Larry on October 8, 2009* -
## US Gov't

Explain the legal basic for the dederal courts jurisdiction over cases. Explain the different kinds of cases that can be heard by dederal courts Please note that we don't do students' homework for them. Our tutors try to give you the information to help

*asked by jenny on May 3, 2007* -
## English

Please help me come up with some ideas for this, need to find appeals to emotion and appeals to reason In "All Together Now," Jordan uses Appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph,

*asked by Bb on December 3, 2018* -
## math

You figure that you will buy property many times and you endeavor to work out a formula that will tell you the price of the land and the price of the buildings any time. So suppose the price for the land and buildings combined is S (for "sum") and the land

*asked by Sarah on September 16, 2010* -
## Physics please help?????

A 540 g block is released from rest at height h0 above a vertical spring with spring constant k = 320 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 19.8 cm. How much work is done (a) by the block

*asked by Fiona on March 16, 2014* -
## Physics

A 540 g block is released from rest at height h0 above a vertical spring with spring constant k = 320 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 19.8 cm. How much work is done (a) by the block

*asked by Fiona on March 16, 2014* -
## Biology

27. Part A. Make a punnett square (as best as you can in this online format) and cross parents both with the thumb genes Aa (A=normal thumb, a=hitchhikers thumb) and show the results. (1 pt) A a A AA Aa a Aa aa 27 Part B. (1 pt) Approximately what

*asked by Zoi on January 26, 2017* -
## Precalc

How do you know what quadrant these two are in? I'm having a little trouble determining. Can someone check if my answers are correct for all and help me fix it to make it right. 10.) The point is on the x-axis and 12 units to the left of the y-axis. My

*asked by Josh on August 31, 2015* -
## principle of management

Fernando, a manager in a retail store, is changing the work schedule of his long-term employees for the holiday season. He is using the same basic schedule as he did last year. Fernando should expect that his employees will be: A) terribly upset and quit

*asked by vedrana on March 12, 2012* -
## physics

carol and bruno drag a box of mass 58.0 kg along a frictionless floor. Carol pushes the box with a force of 11.4 N at an angle of 40.0 downward from the horizontal. Bruno pulls the box from the other side with a force of 11.0 N at an angle of 40.0 above

*asked by sophie on April 3, 2009* -
## algebra

Solve. Leave the answers in terms of pi ?. a)Find a polynomial for the sum of the areas of the circles shown in the figure. b)Find the sum of the areas when r = 5 and r = 11.3. this is what I got but I did not do it right. I needed to To write an

*asked by Anna on July 20, 2012* -
## Algebra 1

A design calls for a rectangular garden with an area of 180 square feet. If the length is to be 3 feet more than the width, set up an equation and solve that equation to find the dimensions of the garden. I drew a sketch and labeled the width "w" and the

*asked by Meloney on May 6, 2009* -
## algebra

Solve. Leave the answers in terms of pi ?. a)Find a polynomial for the sum of the areas of the circles shown in the figure. b)Find the sum of the areas when r = 5 and r = 11.3. this is what I got but I did not do it right. I needed to To write an

*asked by Anna on July 21, 2012* -
## Calculus

An airplane is flying at a speed of 350 mi/h at an altitude of one mile and passes directly over a radar station at time t=0. a) Express the horizontal distance d (in miles) that the plane has flown as a function of t. b) Express the distance s between the

*asked by Chelsea on September 21, 2010* -
## Maths

Please could someone help or complete an unusual calculation for me. I need to solve a triangle where all the angles are known and 2 of the sides. 2 of the sides are identical and 2 of the angles are identical. One angle is one sixtieth of one degree. The

*asked by Mike on January 4, 2017* -
## word problem

A person invests $7,500 part at 5% and the remainder at 4% simple interest. If the total interest at the end of the first year was $346.50, find the amount invested at 4%. Let x = amount invested at 5% Let (7500 - x) = amount invested at 4% 0.05x +

*asked by Dan on July 17, 2005* -
## chemistry

The quantity of antimony in a sample can be determined by an oxidation-reduction titration with an oxidizing agent. A 6.35-g sample of stibnite, an ore of antimony, is dissolved in hot, concentrated HCl(aq) and passed over a reducing agent so that all the

*asked by Anonymous on February 24, 2012* -
## Chemistry

An unknown molybdate (MoO4^-2) solution (50.00ml) was passed through a column containing Zn(s) to convert molybdate into Mo^3+. One mole of MoO4^-2 gives one mole of Mo^3+. The resulting sample required 22.11 ml of 0.01234 M KMnO4 to reach a purple end

*asked by Ken on October 17, 2011* -
## Language Arts

I have these discussion questions on connexus and I have no idea how to answer them, can u help? Here's what it says: Do We Need Words to Communicate Well? In this discussion, you will post comments related to determination and communication. Refer to the

*asked by i luv my ipadtouch on April 17, 2018* -
## Trig.

sec^2xcotx-cotx=tanx (1/cos)^2 times (1/tan)-(1/tan)=tan (1/cos^2) times (-2/tan)=tan (-2/cos^2tan)times tan=tan(tan) sq. root of (-2/cos^2)= sq. root of (tan^2) sq. root of (2i)/cos=tan I'm not sure if I did this right. If I didn't, can you show me the

*asked by Trig on January 9, 2010* -
## Chemistry

Would it be correct to say that it is harder for a weak electrolyte to dissociate in a solution than it is for a stronger electrolyte to dissociate? If a weak electrolyte can't dissociate completely it wouldn't be able to form an equilibrium reaction

*asked by Chrissy on April 13, 2007* -
## Java help please

I am trying to run the following program and am getting this error: java.util.InputMismatchException import java.io.*; import java.util.*; public class Pre2 { static Scanner console = new Scanner(System.in); public static void main(String[] args)throws

*asked by Mike on March 2, 2008* -
## College Physics

Current passes through a solution of sodium chloride. In 1.00 second, 2.68 x 10^16 Na+ ions arrive at the negative electrode and 3.92 x 10^16 Cl-ions arrive at the positive electrode. What is the current passing between the electrodes? Current = mA What is

*asked by Lanise on February 6, 2010* -
## Chemistry

2.The solubility of sodium chloride at 20 degrees Celsius is 358g/1000g H20, or 358g/1358g solution. How many grams of sodium chloride would you expect to dissolve in 2200 grams of H20 at 20 degrees Celsius?

*asked by Aileen on November 9, 2014* -
## Math

Danielle will use the instructions in the box below to make a cleaning solution "Add 13 cups of water to every 2 cups of concentrated cleaner" Which of the following proportions can be used to find W, the number of cups of water Danielle will add to 5 cups

*asked by Lyla on May 6, 2018* -
## BioChemistry

I had to calculate the conjugate base/acid ratio of phenol red in a phenol red solution prepared with a buffer I made and the base/acid ratio of just the phosphate buffer I made. I need to understand why these ratios are different. Can anyone help?

*asked by Amy on September 22, 2011* -
## Chemistry

What is the pH of the solution created by combining 12.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH:12.30 pH w/ HCl _________ pH w/ HC2H3O2 _________ What are the pH values if you take

*asked by HELP!! on April 29, 2012* -
## Chemistry

What is the pH of the solution created by combining 12.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH:12.30 pH w/ HCl _________ pH w/ HC2H3O2 _________ What are the pH values if you take

*asked by HELP!! on April 29, 2012* -
## Instantaneous rate of change

Please help.. Joe is investigating the rate of change of the function y=cos x on the interval xE[0,2π]. He notices that the graph of y=cos x passes through the x-axis at 45°. He also determines the instantaneous rate of change at x = 0, π, and 2π by

*asked by Kjd on May 23, 2012* -
## English

1. He used to take a walk in the park. 2. He used to swim in this river. 3. He used to live in Chicago. 4. He used to drive a car to New York. 5. He used to walk his dog along the road. 6. He used to play soccer when he was young. 7. He used to cook

*asked by rfvv on September 9, 2015* -
## english

These excerpts are from a topic outline. Which one uses parallel construction in the subpoints? A. Goals 1.Traveling through Europe 2.Earning a degree 3.To start my own business B. Goals 1.Building my own log cabin in Vermount 2.I want to visit every major

*asked by Anonymous on August 7, 2008* -
## Calculus II

A tank in the shape of a right-circular cone sits with its base at ground level and its vertex 4 m below ground level. The base has a diameter of 4 m. The tank is full of water. Set up, but do not evaluate, a definite integral that gives the work done in

*asked by Anonymous on April 26, 2018* -
## Physics

Suppose that a comet that was seen in 545 A.D. by Chinese astronomers was spotted again in year 1937. Assume the time between observations is the period of the comet and take its eccentricity as 0.11. What are (a) the semimajor axis of the comet's orbit

*asked by Austin on November 12, 2017* -
## English ErR.

Check Jamal was all doing this to keep his heart safe. It was unique way to protect himself from the wounds of love and dishonesty. But I believe there is no substitute of true love and better understanding. The force of love is the energy that flows

*asked by mujahid on October 13, 2010* -
## physics

The turbine and associated rotating parts of a jet engine have a total moment of inertia of 23 kg m2. The turbine is accelerated uniformly from rest to an angular speed of 140 rad/s in a time of 27 s. (a) Find the angular acceleration. (b) Find the net

*asked by HELP!!!! on March 26, 2011* -
## chemistry

Classify each substance as either arrhenius acid or base: A) HF (aq) B) Ba(OH)2 (aq) C) H2SO4 (aq) D) NH4OH (aq) My work A) arrehenius acid B) arrhenius base C) arrhenius acid D) arrhenius base Am i right

*asked by ROSE on January 10, 2015* -
## English

1. If it rains tomorrow, I will not start. 2. If it should rain tomorrow, I will not start. 3. If it rained tomorrow, I would not start. 4. If it rained yesterday, he didn't go to work. ------------ Are they all grammatical? Which ones are not grammatical?

*asked by rfvv on November 30, 2014* -
## Quadratic equation...

Hi Can anyone help me solve the quadratic equation for the following:- The motion of a two stage rocket is stated by it height y in metres above the ground since t seconds since launch. Flies vertically Ist stage burns for 5 seconds and cuts out. 2nd stage

*asked by Leo on December 1, 2007* -
## Jess

Let f(x)=3x^3 +7.5x +1. In this problem you will estimate f'(3) by computing the average rate of change of f(x)over a small interval. Round your answers to three decimal places. First choose the interval of length .1 with 3 being the left endpoint of the

*asked by Calculus on February 10, 2013* -
## English

1. He will have finished the work by the time you come. 2. He will have gone to Japan next week. 2-2. He will have gone to Japan by next week. 3. He will have read the book three times if he reads it again. 4. He will have lived in Chicago for ten years

*asked by rfvv on June 29, 2017* -
## Algebra

Write the equation of a line that contains (-8,4) and the midpoint of the segment connecting (-10,5) and (-5,0) in standard form. I'm not sure what I'm doing wrong. I found the midpoint (-7.5, -3.5), found the slope, and put the equation in standard form.

*asked by sarah on July 27, 2016* -
## chemistry

How would this problem be worked using dimensional analysis? Answer is 1.32g and I can work it (.900/13.6) * 20 = 1.32 But i need it in dimensional analysis and the hint was to first find volume of mercury. How many grams of alcohol with a density of 0.900

*asked by Rachel on May 25, 2015* -
## Physics

A child pushes a merry-go-round with a force of 55.0 N at an angle tangent to the circle (that is, perpendicular to a radius). If the child pushes it through exactly one full circle, and the merry-go-round has a radius of 1.15 m, how much work does she do?

*asked by Meg on June 10, 2012* -
## Statistics

Local food distributor claims that 18% of all food sold are vegetables. If 112 food items are sold are randomly selected, what is the probability that the proportion of vegetables sold differs from the population proportion by more than 2%? I am trying to

*asked by Nicole on July 10, 2017* -
## Math2[Please Check Again]

Problem: a^2-9 a^2-3a ----- * -------- a^2 a^2+a-12 What I Got: 3-3a ---- a-4 *Please Check My Work.* Nope. factor the denominator to a^2(a+4)(a-3) The last factor divides out in the numerattor (second term factors to a(a-3). The a in the numerator reduces

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

A block with mass 35kg rests on an incline 13 degrees to the horizontal calculate the : (a) perpendicular weight component (Fc) on the inclined plane; (b) parrallel weight component (Fs) on the inclined plane.. This is the question exactly out of the book

*asked by michelle on September 29, 2006* -
## Art

For a project i have to put pictures on my diagram that represent words. What would a picture be that represents descriptivness? setting? plot? characters? Thanks Are you illustrating a specific story or book? Or is your diagram representing these general

*asked by Anonymous on June 12, 2006* -
## STATISTICS PLESE HELP!!

studies indicate that drinking water supplied by some old lead-lined city piping systems may contain harmful levels of lead. an important study of the Boston water supply system showed that the distribution of lead content readings for individual water

*asked by Courtney on November 8, 2010* -
## statistics

studies indicate that drinking water supplied by some old lead-lined city piping systems may contain harmful levels of lead. an important study of the Boston water supply system showed that the distribution of lead content readings for individual water

*asked by dinhgde on March 14, 2011* -
## calclus

Is it possible to accurately approximate the speed of a passing car while standing in the protected front hall of the school? Task: Determine how fast cars are passing the front of the school. You may only go outside to measure the distance from where you

*asked by robin (urgent) on May 16, 2018* -
## calclus

Is it possible to accurately approximate the speed of a passing car while standing in the protected front hall of the school? Task: Determine how fast cars are passing the front of the school. You may only go outside to measure the distance from where you

*asked by Eden (urgent) on May 17, 2018* -
## Math-- Fractions-- I Desperately Need Help!!

I need help with this problem. Estimate 16 20/21 times 28 3/7 minus 4 13/25 plus 8 2/47 as a whole number or as a mixed number where the fractional part is 1/2 (Possible answers) One is the correct answer. A. 452 B. 480 C. 488 D. 492 1/2 I have tried to

*asked by Victoria on February 23, 2007* -
## ap biology

we are looking at the Hardy weinberg equilibrium theory and we were given fifty problems to work over the break and even though i have answered most of them there is one that has be taken a long time because I am not sure if it can be solved. here is the

*asked by claudia on January 4, 2008* -
## Chemistry

I have to write the exact lewis electron dot structure for para xylene C8H10. I tried writing it out but it doesnt work out proerly. C is supposed to have 31 electrons and H is supposed to have 10 totaling 42. i was doing research and it says that it is

*asked by Sam on November 29, 2009* -
## calclus

Is it possible to accurately approximate the speed of a passing car while standing in the protected front hall of the school? Task: Determine how fast cars are passing the front of the school. You may only go outside to measure the distance from where you

*asked by mariam on May 2, 2018* -
## Physics

The pressure and volume of a gas are changed along a path ABCA in the figure. The vertical divisions on the graph represent 3.50 105 Pa, and the horizontal divisions represent 2.00 10-3 m3. Determine the work done (including algebraic sign) in each segment

*asked by Johnson on April 20, 2008* -
## Find Airplane Bearing

A plane leave a certain airport from runway 4 RIGHT, whose bearing is N40degreesE. After flying for 1/2 mile, the pilot requestd permission to trun 90 degrees and head toward the southeast. The permission is granted. After the airplane goes 1 mile in this

*asked by John on February 22, 2008* -
## algebra 1

A manufacturer is cutting plastic sheets to make rectangles that are 11.125 inches by 7.625 inches. Each rectangle’s length and width must be within 0.005 inches. A. Plot the acceptable range of lengths on the number line that follows: B. Write an

*asked by mark on November 24, 2013* -
## Programming C

//compares the amount the user has in deposits to the price of app selected. //It returns 1 if the amount is enough to cover the cost, 0 if there is not enough. int Compare(double deposit, double choiceCost); how do you get this function to compare return

*asked by Anonymous on October 18, 2012* -
## SCIENCE

CAN SOMEONE PLEASE HELP ME AND TELL ME IF IM RIGHT even a guess would be good ive been trying 4 a answer since 6:00 PLEASE help me :/ i think that the 2nd one is correct because i no that energy is not lost when water is boiled it is gained because of the

*asked by bobbi on April 28, 2009* -
## Chemistry

I am predicting acid-base equilibria using the Brondsted-Lowry predictions. I am asked to do "solid aluminum sulfate added to water". So I know there is an Al^2+ ion and a SO4^-2 ion, but does water dissociate into H30^+ and OH^-? If so, then H30^+ and

*asked by Stuck on May 7, 2010* -
## Physics

Figure 7-47 shows a cold package of hot dogs sliding rightward across a frictionless floor through a distance d = 21.5 cm while three forces are applied to it. Two of the forces are horizontal and have the magnitudes F1 = 5.00 N and F2 = 1.00 N; the third

*asked by Carla on July 22, 2010* -
## AP physics

A 1280-kg car starts from rest and accelerates to 80 km/h in 23.0 s. Friction exerts an average force of 449 N on the car during this time. (a) What is the net work done on the car? J (b) How far does the car move during its acceleration? m (c) What is the

*asked by Alica on May 10, 2012* -
## Information Systems in Organizations

Directions: Test your knowledge of this topic by selecting the best answer for each of the following questions. When you click the Submit button, you will see your score and the results will go to your instructor. You may want to refer to the general

*asked by Denise on May 17, 2012* -
## Physics

A 5.00 kg carrying a charge of Q=60 uC is connected to a spring for which k=100N/m. The block lies on a frictionless horizontal track and the system is immersed in a uniform electric field of E=5.0e5 V/m. If the block is released from rest when the spring

*asked by Jona F on March 28, 2012* -
## Physics

A 5.00 kg carrying a charge of Q=60 uC is connected to a spring for which k=100N/m. The block lies on a frictionless horizontal track and the system is immersed in a uniform electric field of E=5.0e5 V/m. If the block is released from rest when the spring

*asked by Jona F on March 28, 2012* -
## IT

Give the URL of two different e-commerce Web sites. For one of the Web sites, outline the key technology infrastructure components necessary to support its e-commerce business the two web sites I decided on was ebay --which is consummer selling to

*asked by Ray on June 12, 2007* -
## Accounting

Aunt Rhea Corporation Income Statement For the Year Ended December 31, 2015 Service Revenue $ 900,000 Operating Expenses 700,000 Net Income before Income Tax $ 200,000 Gain on Investment Sale 10,000 Net income Before Income Taxes $ 210,000 Income Tax

*asked by Daniel on May 2, 2016* -
## Math

Find a quick and easy method to compute the sum of the first 100 counting numbers. I can't use a calculator. I can't figure out an easy way. 1+2+3+4+5...........98+99+100 Carl Freidrich Gauss had no idea as to how famous his name would become when he

*asked by Tony on October 3, 2006* -
## Science

I want to make a small model of how electricity is created by burning coal. I want to show a model that works and be able to light up and very small light bulb(the ones found in an average school microscope). How would I do this. You will find this

*asked by Gina on December 18, 2006* -
## carboxylic acid with base

if a solution contain NaOH and K2CO3 and carboxylic acid like s-phenylalanine, the carboxylic acid will react K2Co3 to produce carboxylate salt why the carboxylic acid don't react with NaOH ? please help me thank you

*asked by samaa on June 27, 2009* -
## calculus

A force of 4 pounds is required to hold a spring stretched 0.1 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.6 feet beyond its natural length?

*asked by maggie on March 9, 2017* -
## Integral Calculus

A force of 4 pounds is required to hold a spring stretched 0.1 feet beyond its natural length. How much work (in foot-pounds) is done in stretching the spring from its natural length to 0.6 feet beyond its natural length?

*asked by Mackenzie on October 15, 2014* -
## math

Marley drives to work every day and passes two independently operated traffic lights. The probability that both lights are red is 0.35. The probability that the first light is red is 0.48. What is the probability that the second light is red, given that

*asked by nyshaw on May 9, 2014* -
## algebra or algebra1

A woman works two jobs, making 35 dollars per hour on the first and 25 dollars per hour on the second. One week she works twice as many hours on the first job than the second job and earns 1330 dollars. How many hours did she work on the second job

*asked by pink on February 20, 2016* -
## Physics Tough question!

A pond has the shape of an ice cream cone with the tip slices off and has a depth of 5.00m. The atmospheric pressure above the pond is 1.01 *10^5 Pa. The circular top surface (radius = R2) and circular bottum (radis = R1) of the pond are both parrallel to

*asked by ALan on March 8, 2010* -
## HORRIBLE!

Hello, I took my ACT test today, and I think I epicly failed the english part. The part where you had to correct the underlined sentence was really hard. I would narrow it down to 2 answers, but obviously only one can work. Both of them looked correct to

*asked by Chopsticks on April 4, 2009* -
## World history; Check:P

Write a opinion paper on the most significant consequences of the Agricultural Revolution. This is about 10,000 yearsago. One of the greatest consequence was that the population increased. The increase of population lead to the need of more clothing.

*asked by Unknown on February 19, 2013* -
## college

Your favorite cousin has moved to your town and is looking for a job. Her previous experiences are working as a cashier and sales clerk at two department stores. You know she plans to apply at similar stores in your town. But you also know she is a perfect

*asked by MARIA on June 10, 2009* -
## physics

a 120kg ball moving at 18m/s strikes a wall perpendicularly and rebounds straight back at 12m/s. after the initial contact, the centre of the ball moves 0.27cm closer to the wall. Assuming uniform deceleration, show that the time of the contact is

*asked by kale on September 30, 2007* -
## Chemistry-Help Dr. Bob

How many mL of Carbon Dioxide gas at STP are produced from the decomposition of 4.50g of Ferric Carbonate? This is How I tried to solve it..... 4.50g Fe12(CO3)3* 1 molFe2(CO3)3/291.72g Fe2(CO3)3* 3 mol CO2/1 mol Fe2(CO3)3* 22.4L CO2/1mol CO2* 1000ml of

*asked by Loretta on October 25, 2014* -
## Chem

Hi! I need help with this question: Sulfur dioxide reacts with chlorine at 227 oC: SO2(g) +Cl2(g) ↔ SO2Cl2(g) Kp for this reaction is 5.1 x 10-2 atm-1. Initially, 1.00 g each of SO2 and Cl2 are placed in a 1.00 L reaction vessel. After 15 minutes, the

*asked by Anonymous on February 20, 2013* -
## Accounting

The beginning inventory of Merchandise at Waldo Co. and data on purchases and sales for a three-month period are as follows: Date Transaction Number of Units Per Unit Total March 3 Inventory 60 $1500 $90,000 8 Purchase 120 1800 216,000 11 Sale 80 5000

*asked by tabitha Bennett on November 10, 2012* -
## Physics

A 540 g block is released from rest at height h0 above a vertical spring with spring constant k = 320 N/m and negligible mass. The block sticks to the spring and momentarily stops after compressing the spring 19.8 cm. How much work is done (a) by the block

*asked by Riley on March 10, 2014* -
## chemistry

how do i prepare a sulphuric acid solution having 75 % purity with 1.68 specific gravity from sulphuric acid with 97 % purity and 1.834 specific gravity.

*asked by Mukesh on September 6, 2016* -
## Physics - Electric force, field, and potential

A 2μC charge is positioned at x = -0.8m and another 2μC charge is positioned at x = 0.8m. A positive test charge of q = 1.28*10^-18C is positioned at the origin x = 0m. Find (a) the electric force exerted on q, (b) the electric field at the origin, and

*asked by Kid on February 15, 2017* -
## physics

I am not sure how to setup this problem. I posted it earlier and "BOB PURSELY" responded we are happy to critique your thinking. I have know idea how to solve this problem or even where to start. Please help!!! A tetherball leans against the smooth,

*asked by jose on February 25, 2008* -
## Geometry

I have several questions, because my geometry final is tomorrow. I've completed most of the review, but can't seem to figure out these questions. It would be great if someone could tell me how to solve each equation. 1. Find the radius of the circle with

*asked by Sammie on June 17, 2008* -
## Microeconomics

Can someone help me with a hint to solve this problem?? Thanks!!! "Consider an oligopolistic market with two firms. Each of them produces using a cost function given by c(q)=q2. The aggregate demand in the market is given by 1000−p. Suppose that, in

*asked by JJ on March 20, 2014* -
## Physics

I am not sure how to setup this problem. I posted it earlier and "BOB PURSELY" responded we are happy to critique your thinking. I have know idea how to solve this problem or even where to start. Please help!!! A tetherball leans against the smooth,

*asked by Jose on February 25, 2008* -
## CHEMISTRY

how many grams of sodium carbonate are needed to prepare 0.250 L of an 0.100 M aqueous solution of sodium ions? well normally you go moles=grams/molar mass than M= moles/L but when looking for grams? what do you do........multiple .250 by .100 than divide

*asked by STACY on December 13, 2010* -
## chemistry

When calcium chloride and ammonium phosphate are mixed, an insoluble precipitate of calcium phosphate forms and falls out of solution. After careful analysis of the purified precipitate, 8.16 * 10^25 atoms of calcium are found in the solid. How many other

*asked by Yasmin on December 11, 2014* -
## Chemistry

Given a sample of gas (2.49 g) with a volume of 752 mL at 335K and 1.98 atm, what is the gas, SO2 or NO2? PV=nRT (1.98atm)(0.752L)= X (0.08206L-atm/mol-K)(335K) X = 0.0541634989 mol= g/gfm 2.49/X= 0.0541634989 X = 45.97 NO2 has 46g, whereas SO2 is 64.1g.

*asked by Anonymous on December 23, 2009* -
## Physics

This question has been blowing my mind, and my teacher is offering no help whatsoever. Experiments performed on the wing of a hawkmoth (Manduca sexta) show that it deflects by a distance of = 4.9 mm when a force of magnitude = 3.2 mN is applied at the tip.

*asked by Sal on October 22, 2009* -
## Inverse trigonometric function

How to solve without calculator 1. sin(arctan(12/5)) 2. cos(arccosx + arcsinx) Thanks. You have to know your right triangles. 5 12 13 is one. If the tan is 12/5, then the sin is 5/13. Draw a pic to confirm that. On the second: Think. Draw any right

*asked by Jen on April 8, 2007*

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