# 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 117
1. ## Math

There is a hot-air balloon festival in System Springs. Seventy-Two balloons reigistered to participate, paying \$25 each. Five of those registered didn't show up and refunded half their money. Three additional balloons showed up and paid the registration

asked by Help on December 14, 2015
2. ## Government

Compare and contrast how public versus a private organization might address the immigration policy differently. include an explanation of how the delivery system of a public organization would be different than that of a private organization. for placement

asked by Anonymous on May 24, 2007
3. ## Chemistry

when pure sodium hydroxide is dissolved in water , heat is evolved in a laboratory experiment measure a molar heat of solution of sodium hydroxide the following procedure was followed. to a calorimeter containing 300g of water at 20.0 C and 10.65g of NaOH

asked by jim on March 23, 2007
4. ## math. algebra 2

I need help with this problem I do not understand how to solve this kind of problems....can someone show me and explain it to me thanx. Find a Z-score satisfying the given condition: 82.9% fo the total area a is to the left of z.

asked by student on July 13, 2007
5. ## math

solve the following trig equation : 7 = 8sin(1/2)x. I can solve this using the half-angle indentity. But i need to solve this using period and phase change equation. how do i do this?

asked by shan on April 16, 2008
6. ## Maths

solve the following pair of simultaneous equation: (x/a)+(y/b)=1 (x/b)+(y/a)=1 can someone help please?i have no idea how to solve it =( x/(ab) + y/b^2 = 1/b x/(ab) + y/a^2 = 1/a Subtract one from the other y(1/b^2 - 1/a^2) = 1/b - 1/a y(1/b + 1/a)(1/b -

asked by Emma on July 11, 2007
7. ## Algebra 1--Please, help me!

Solve the following equation by graphing the related function. 1. 4x^2 + 8x = 32 A: ? Use the Zero Product Property to solve the following equation. 2. x(x + 3) = 32 A: ? 3. Solve 3x^2 + 5 = 21. Round to the nearest hundredth. A: x = 5.33 x = 5.0 or 5?

asked by Victoria on May 12, 2014
8. ## math,algebra

can someone help me out factor out this 0=16t^2-122t+180 i have so far this but the last one i am not sure 8(2t^2-14t + ?) you need to use the quadratic formula: -b(+or-)[sqrt(b^2-4ac)/2a] so you are saying that i don't have to factor it out any further i

asked by jasmin20 on April 6, 2007
9. ## chemistry

thank you for any help possible. Given a Mass Percent 13.3% and a Mass Solvent of 325.2 g, find Mass of Solute and Mass of Solution. Mass%=13.3% Mass solvent= 325.2g solve for the Mass solute and Mass solution. This is all the information I am given.

asked by ben 16 on December 4, 2011
10. ## Economics

The question is, what is the for Math formula to show rather the demand of apples is Elastic, Inelastic, or Unitary Elastic Thank You Suppose the price of apples rises from \$3.50 a pound to \$4.00 and your consumption of apples drops from 30 pounds of

asked by Randy on November 19, 2008
11. ## Chemistry

You weigh out 196.07mg ferrous ammounium sulfate (FW 392.14) to prepare 250mL of solution which is 0.002M with respect to that compound. The salt is quantitatively transferred into a 250mL volumetric flask and 8mL of 3M H2SO4 is added and then diluted to

asked by Ken on December 7, 2011
12. ## chemistry

What is th pH of a buffer solution made by dissolving 0.10 mol of formic acid, HCOOH, and 0.10 mol of sodium formate, HCOONa, in 1L of water? What is the molarity of a solution made by dissolving 3.4g of Ba(OH)2 in enough water to make 450mL of solution?

asked by Taylor on November 18, 2009
13. ## chem

what is a liquid solution and a gaseous solution? [define plz] liquid solution: sea water gas solution: air i don't need examples. i need definitions. they are not in my book. a liquid solution is a mixture of atoms/ions/chemicals, etc. dissolved in water.

asked by revie on May 15, 2007
14. ## College Chemistry Lab

Suppose that a 2.50x10^-6M solution of red dye No. 2 had an absorbance of 0.585 at its wavelength of maximum absorbance. A second solution of red dye No. 2 is too concentrated to read its absorbance so 5.00 mL of the concentrated dye solution was diluted

asked by L** on March 16, 2010
15. ## Physics

Consider the mechanical system with three degrees of freedom. The positions of the particles are measured from their equilibrium positions. The system has a normal mode eigenvector |13.98| | b | |13.98|. If all particles start from their equilibrium

asked by Anonymous on September 6, 2012
16. ## Chemistry

The Kc for the following reaction at 940oC is 1.38. Given the concentrations [CO2] = 0.500 M, [H2] = 0.425 M, [CO] = 0.610 M and [H2O] = 0.695 M, one can conclude that: H2(g) + CO2(g) ↔ CO(g) + H2O(g) Question 8 options: A) the system is not at

asked by Katie on May 10, 2012
17. ## Math

Given table, X ; (1+x)^(1/x) -0.5. ; 4 -0.1 ; 2.8680 -0.01 ; 2.7320 -0.001; 2.7196 0.001 ; 2.7169 0.01 ; 2.7048 0.1 ; 2.5937 0 5 ; 2.25 From the table, show that lim x->infinity (1+x)^(1/x)=e. Plz someone show me the step how to show it based on the table.

asked by David on April 6, 2013
18. ## Math

Given table, X (1+x)^(1/x) -0.5. 4 -0.1 2.8680 -0.01 2.7320 -0.001 2.7196 0.001 2.7169 0.01 2.7048 0.1 2.5937 0 5 2.25 From the table, show that lim x->infinity (1+x)^(1/x)=e. Plz someone show me the step how to show it based on the table. Hope u can read

asked by Ifi on April 6, 2013
19. ## Math

Lydia wants to buy picnic tables, benches, and permanently installed grills. On one page she notices that 5 picnic tables, 10 benches, and 3 grills sell for \$1330. On another page she sees that 20 picnic tables, 30 benches, and 20 grills sell for \$5550.

asked by help please:) on October 16, 2009
20. ## Biology

What is the osmotic pressure of the salt solution in reverse-osmosis? Select one: a. An equilibrium state where the amount of solvent passing in opposite directions is equal b. An equilibrium state where the amount of solvent passing in one direction is

asked by Clara on May 21, 2015
21. ## Math

Constance invested \$4500 for 3 years in a savings account paying simple interest with a yearly interest rate of 3.5%. How much simple interest did she earn? Please show your work :)

asked by Kathy on November 15, 2017
22. ## 5th Grade math

What is a partial-products algorithm. For example 87*65=? How do you do it and show your work? Here is how Chicago Math does it: 87 x65 multiply 80 x 60.....4800 multiply 7 x 60..... 420 multiply 5 x 80.......400 multlply 5 x 7 ........35 add the products.

asked by Nick on April 18, 2007
23. ## Math PLEASE HELP ME!!

A restaurant offers a 13% discount on chicken wings on Mondays. If Travis eats \$7.95 worth of chicken wings on Friday, how much would those wings cost on Monday??? PLEASE SHOW ALL WORK THANKS!!!!! :)

asked by Madelyn Santiago on March 7, 2012
24. ## math

The base of a rectangular prism has a length of 13 inches and a width of 1/2 inch. The volume of the prism is less than 65 cubic inches. Find all possible heights of the prism. Show all your work as an inequality. THANK YOU!!

asked by kimie on November 8, 2015
25. ## algebra

Given the following function, find: (a) vertex (b) axis of symmetry (c) intercepts, (d) domain (e) range (f) intervals where the function is increasing, (g) intervals where the function is decreasing Please show all of your work f(x)=-7x^2-14x-3

asked by sarah on January 18, 2012
26. ## 3rd grade math

suppose she cut the cake into 8 equal size pieces and 6 people at all the pieces. Explain how they could have divided the pieces so that everyone ate the same amount of cake. You can show your work in a drawing.

asked by mandie on March 27, 2014
27. ## Physics

A ferry-boat is rectangular in shape, with an overall area of 30.0 m2. When the boat is loaded with gravel, it sinks to a depth of 2.8 m in the water. What is the total weight of the boat + gravel? Show your work.

asked by Lenny on February 7, 2017
28. ## ALGEBRA

1. Imagine you are in the market for a new home and are interested in a new housing community under construction in a different city. a. The sales representative informs you that there are 78 houses for sale with two floor plans still available. Use x to

asked by Imagine on May 20, 2011
29. ## PHYSICS-Help required

My physics questions are not on graphs, this is just a practise quiz I'm doing. All the questions I've done so far were not guessed answers, I did my work on a separate piece of paper, all I really had to do was divide. The other questions above that I

asked by Anonymous on July 21, 2010
30. ## Physics

I am reviewing for a test and I don't know how to attempt this question. Could someone please work through this problem and then have the general steps that I need to take to solve the question? Here is the question: A rocket expels gases at a rate of 1.30

asked by Baxter Reus on February 8, 2015
31. ## geometry

The measure of the angles in a parallelogram total 360. Write and solve a system of equations to determine the values of x and y. The parallelogram shows x and 5.5y. The triangle shows x and y. I have the first equation at 180= x + 5.5y. What would be

asked by Jack on December 16, 2013
32. ## Stastics

Did I do this right and should i show more work? Listed below are body temperatures for four subjects measured at two different times in a day. Body Temperature (°𝐹) 𝑎𝑡 6 𝑎𝑚: 98.0,97.0,98.6,97.4 Body Temperature (°𝐹) 𝑎𝑡 6

asked by Davina on April 26, 2016
33. ## alg 2+urgent please.

2/the 6th root of 81 the answer gave an answer of "2 3rd root of 3/3" sorry i didn't type the root signs, i dunno how. can you show me how to work this?

asked by Chopsticks on January 26, 2009
34. ## Chemistry- Dr.Bob222

Using the Nernst equation, determine the diluted concentration for both cells. Show your work. Sn| Sn2+(diluted)||Cu2+|Cu Zn| Zn2+ ||Sn2+(diluted)|Sn

asked by Anonymous on May 30, 2016
35. ## Chemistry

SHOW WORK A cylinder contains 22g of air. If 77g of air are pumped into the cylinder at constant temperature, how does the pressure in the cylinder change?

asked by Caitlyn on December 4, 2013
36. ## geometry

Show all work. Mary purchased a package of 15 different plants.but she only needed 10 plants for planting. In how many ways can she select the 10 plants from the package to be planted?

asked by angela on June 12, 2012
37. ## math

If each square unit represents 5 square feet, what is the area of Elain's bedroom in square feet? Use repeated addition. can you please show the work?

asked by Jamar on February 4, 2015
38. ## Solve. W rite each answer in simplest form.

Erin buys a bag of peanuts that weighs 3/4 of a pound. Later that week, the bag is 2/3 full. How much does the bag of peanuts weigh now? Show your work

asked by Lindsey on September 16, 2014
39. ## Math

Dr. Grimes won \$5,000 playing VA Lottery. 1/4 of the money goes to federal taxes, and 1/25 goes to state taxes. How much money did she get after taxes? (SHOW ALL WORK)

asked by Barry Vacker on January 14, 2019
40. ## American Government

Check my answers please 1. Which of the following describe the role of an entrepreneur in a capitalist economic system? (I need to select 2) A. Someone who combines the factors of production into a business B. Someone who decides how much regulation the

asked by M on January 6, 2017
41. ## business

You are a technical writer in a large company who is working on a training manual to help new users learn the company's computer system. Employees will use your manual in training seminars taught by your company's trainers. The manual will also serve as an

asked by Anonymous on November 21, 2010
42. ## MATH

Thanks for the answers but I must show the work for each problem. Can someone please help now that I finally submitted the square root correctly,thanks to drwls, and Ms. Sue. Thank you The slash (/) line represents that the number is a fraction. divide:

asked by PLEASE HELP on October 29, 2011
43. ## AP chem

The experiment can be extended to determine the order of reaction m with respect to [OH-] by varying the concentration of hydroxide ions [OH-] Assume that the value of the pseudo-rate constant k’ was measured for two different concentrations of [OH-].

asked by Alexa on October 26, 2015
44. ## chem

Ionization energy is defined as the minimum energy required to remove an electron from the ground state (n0) to infinity (n∞). Determine the wavelength of radiation required to ionize the hydrogen electron from the n = 2 energy level. Calculate the

asked by Mary on October 2, 2006
45. ## Chemistry!!

A chemist wants to prepare a stock solution of H2SO4 so that a sample of 20.00mL will produce a solution with a concentration of .50 M when added to 100.0mL of water. A)what should the molarity of the stock solution be? B)If the chemist wants to prepare

asked by Anonymous on April 22, 2013
46. ## computer

A coworker calls you at 9:00 a.m. at work and asks for a favor. He is having car trouble and will be an hour late for work. He explains that he has already been late for work twice this month and that a third time will cost him four hours of pay. He asks

asked by nav on June 12, 2017
47. ## Algebra/College/HELP

(I know that the questions I answered are right but I'm stuck on c and d. Can someone please help me? I'm not very good at algebra). a) The sales representative informs you that there are two floor plans still available, and that there are a total of 56

asked by LeAnn/URGENT on November 16, 2009
48. ## math

Can someone show me how to answer this question? Please? I would really appreciate any help you can give baseball statistics~~ “According to an Associated Press study, the average MLB salary will break the \$4 million mark for the first time in 2015,

asked by Abby on September 28, 2015
49. ## math

Can someone show me how to answer this question? Please? I would really appreciate any help you can give baseball statistics~~ “According to an Associated Press study, the average MLB salary will break the \$4 million mark for the first time in 2015,

asked by Abby on September 29, 2015
50. ## math

Can someone show me how to answer this question? Please? I would really appreciate any help you can give baseball statistics~~ “According to an Associated Press study, the average MLB salary will break the \$4 million mark for the first time in 2015,

asked by Abby on September 28, 2015
51. ## Math

Skyler = 32.35 LuiZ = 21.78 Todee= 28.19 Together= 28.19 U sing the individual times for your tema member. Erige an equation to model the work done and solve that equation for the estimated time that it takes to complete the task together.

asked by Skyler on November 16, 2015
52. ## AP Chem

A student chemist named Hannah Montana set up an electrical conductivity tester similar to that shown on page 141 and conducted an experiment involving two clear, colorless liquids, identified as solution A and solution B. Solution A and Solution B are

asked by dylan on October 11, 2010
53. ## algebra

Simplify -11 sqrt 112. -44 sqrt 7******** -176 sqrt 7 -27 sqrt 7 4 sqrt 7 Is this right? and I need to show my work, idk the steps

asked by Carl Wheezer on May 5, 2017
54. ## Physics

A 2.32 kg block slide down a ramp from a height of 4.19 m. The block has a speed of 3.25 m/s when it reaches the bottom. There is friction. What is the work (in J) done by gravity? What is the work done by friction? I found the work of friction already.

asked by Jordan on October 27, 2014
55. ## TOm

Hello, this is the last question that I can't seem to or be able to solve: 1. Jenny (75 kg) goes on a ski trip. She goes down a slope that's inclined at 15*. The drag coefficient of Jenny is 0.300, the surface of contact with air is 0.750 m^2 and the air

asked by Physics on January 27, 2012
56. ## Medical

Dr. S. is working within a reimbursement system where the insurance is billed after all the treatment has been given to the patients. The main reason that he orders more tests, exams, and procedures under this system is A. fear of being sued. B. to make a

asked by Natalie westbrook on June 17, 2014
57. ## child day care management,health,safety,and nutrit

Q; the interaction between a child's biological makeup and the enviromental influences that affect his or her development and behavior is called the A. balanced system approach B. ecological system theory C.body in the classroom analysis D. me\them dynamic

asked by alex on February 16, 2011
58. ## Pre-Calculus Help?

the vertical and horizontal positions of a zip line cable are represented by the following parametric equations. Rewrite the parametric equations by elimination the the parameter. x(t)= 3t + 4 y(t) = 5-t a) y = -1/3x+19/3 b) y= 19 - 3x c) y= 2x + 9 d) y=

asked by ADOG on May 18, 2018
59. ## Algebra

Pulling my hair, need help! For the systems of linear equations in questions the following questions: Determine how many solutions exist Use either elimination or substitution to find the solutions (if any) 4x = 8 and 5y = 15 0.2x + 0.4y = 1.7 and 8.3x -

asked by Vilma on June 10, 2012
60. ## Home, school and community

A teacher who makes a genuine effort to understand and solve problems that parents may have in a situation, but still finds no solution should: A. ask for the child to be moved to another class. B. remember that he or she is not alone. C. do exactly what

asked by farida on June 21, 2013
61. ## algebra

1. Imagine you are in the market for a new home and are interested in a new housing community under construction in a different city. a. The sales representative informs you that there are 56 houses for sale with two floor plans still available. Use x to

asked by Devin on March 31, 2010
62. ## Math

Imagine you are in the market for a new home and are interested in a new housing community under construction in a different city. The sales representative informs you that there are 56 houses for sale with two floor plans still available. Use x to

asked by Anonymous on January 27, 2011
63. ## algebra

1. Imagine you are in the market for a new home and are interested in a new housing community under construction in a different city. a. The sales representative informs you that there are 56 houses for sale with two floor plans still available. Use x to

asked by Libby on June 21, 2011
64. ## chemistry

Thanks for your help. I have a problem to solve et don't know how to do part of it. We have a solution of XNO3 (X = monovalent cation We add a solution of K2SO4. We obtain an insoluble sulfate which precipitate and KNO3 The precipitate = 3.900 g The

asked by Ele on April 27, 2016
65. ## Technology

I need info on crank and winder system and belt drive system please QUICK!!! How does the air conditioner on your car get power? Do you have any wind up clocks in your house or travel kits? What kind of info do you need?

asked by Jenny on August 19, 2006
66. ## Math

If you toss a pair of dice 1,000 times, how many times would you expect to get a sum of 12 as the result? 1.)about 12 times 2.)about 27 times 3.)about 36 times 4.)about 100 times The lesson doesn't show me how to work this. Whats the formula?

asked by Andrew on January 7, 2011
67. ## geometry

a ladder is 15 ft long and is leaning against the wall. the top of the ladder is 12 feet above the ground. find the distance from the bottom of the ladder to the wall. draw and label a picture and show work....

asked by rob on March 20, 2012
68. ## Calculus 3

A ball is thrown at an angle of 45 degrees to the ground. If the ball lands 90m away, what is the initial speed of the ball? I know you use x(t)=(v*cos(alpha))t and y(t)=(v*sin(alpha))t-g/2t^2 but I'm still really confused about what to do. Please show all

asked by Anonymous on February 26, 2012
69. ## math

find the area of this ring to the nearest square unit. Show your work. The image shows a ring, the inside raius is 2.0m, and the outside radius is 3.2m. The area of the ring is... plz help!! thx.

asked by olivia on December 11, 2008
70. ## Physics

A rock is thrown straight up at 22.0 m/s from a roof of a 30.0 m tall building. After rising, the rock falls on the street below. Ignoring air resistance, how much time is the rock in the air? Show the work please :)

asked by Luke on May 24, 2016
71. ## math

How would you show the work for this. Bills locker is 30 inches tall, 10 inches wide, and 14 inches deep. If his books take up 1,545 in. of space, how much space does he have left to hang his coat and bookbag? Thank you

asked by sam on July 19, 2013
72. ## Chemistry chlorine plz help

A metal x forms two different chloride.if 12.g of chloride A and 16.3g of chloride B contain 7.1g and 10.7g of chlorine respectively,show that the figure agree with the laws of multiple proportions.write there formulea plz i need the work....no hint plz

asked by Daniel on January 12, 2016
73. ## 6th grade

Assume that the average speed of a moving object at 1 m was initial velocity and average spped of your cvart 5 m was its final velocity. calculate the change in velocity of your cart from 1 m to 5m. Show your work

asked by Brittany on March 26, 2010
74. ## Math

Hey, I just need my answer checked. Simplify: y to the 4th power times y to the 3rd power y to the 1st power y to the 7th power ** y to the 12th power y to the 43rd power correct? If not, please show work for me. thanks.

asked by IAmNotARobotTrustMe1 on September 6, 2017
75. ## Math

An Adult male's heart pumps about 2.8 million liters of blood a year. If his heart beats 70 times a minute, how much blood does his heart pump with each beat? Show work

asked by chad on January 25, 2011
76. ## algebra

Flying with the wind, a pilot flew 600 mi between two cities in 4 h. The return trip against the wind took 5 h. Find the rate of the plane in calm air and the rate of the wind. Please show work. thanks

asked by PLEASE NEED HELP on March 29, 2012
77. ## calculus

Find the area bounded by {y=x2−4 y=4−x2 • sketch the region described • determine any intersection point(s) for the curves (show work!!) • write out the integral(s) that will calculate the area • determine the area (may use a calculator)

asked by Will on October 3, 2013
78. ## Math-Trigonometry

Show that if A, B, and C are the angles of an acute triangle, then tan A + tan B + tan C = tan A tan B tan C. I tried drawing perpendiculars and stuff but it doesn't seem to work? For me, the trig identities don't seem to plug in as well. Help is

asked by Sam on November 6, 2013
79. ## Credit and Taxes

Please Help me! Nancy Tai has recently opened a revolving charge account with MasterCard. Her credit limit is \$1000, but she has not charged that much since opening the account. Nancy hasn't had the time to review her monthly statements as promptly as she

asked by candy on July 21, 2006
80. ## Medical Administrative Assistant

I need help adding some stuff to this exam please help Exam 028005 It has come to my attention after a conversation with a DMD Medical Supplies representative that some of our work for them has been subpar. Knowing we are a customer driven company I did

asked by Kara on December 18, 2014
81. ## Algebra

Please show how to solve for problems like this: How many pounds of coffee that costs 4.50/lb be mixed with 20 lbs of coffee that costs 7.50/lb to make a mixture that costs 5.00/lb

asked by Ken on September 22, 2014
82. ## Physics

Question # 1 Marks = 12 A worker pushes 25Kg crate a distance of 5m along a level floor at constant velocity by pushing horizontally on it. The coefficient of kinetic frication between the crate and the floor is 0.23. (a) What magnitude of force must the

asked by M. Yousaf Khan on November 1, 2011
83. ## Algebra

Simplify and write with positive exponet (4x^-1)^-1 Work: (1/4x)^-1 (1/(1/4x))(4x/4x)= 1 (X^3+3x^2+3x+1)^-2/3 Work 1/(X^3+3x^2+3x+1)^2/3 1/(X^2+52/25x^4/3+52/25x+1) I'm confused on whether these are right or not can someone check my work or explain to me

asked by Yaga on August 16, 2016
84. ## chemistry

Can someone help me to check my answer and the way I solve this problem is right or wrong? Determine the energy required to turn a Na metal atom into a gas phase ion (Na+ (g)). Ionization energy of Na(g) 499 kJ/mol Electron affinity of O(g)for2e- 603

asked by Jenny on September 7, 2012
85. ## physics

plz anyway help me for the solution of this question. from the top of a tower P,a ball is thrown vertically upwards.when the ball reaches a distance h below P,its speed is double of what it was at height h above P.show that the greatest height attained by

asked by jack on September 10, 2011
86. ## BLD 414

A liquid solution of formaldehyde is 37.0% pure. This solution has a specific gravity of 1.037. The molecular weight of formaldehyde is 30.0. to 1.00 ml of this impure stock solution is added quantity sufficient to take the total volume to 500ml. If 1.00

asked by Amber` on March 19, 2012
87. ## Chem Lab Math!

A liquid solution of formaldehyde is 37.0% pure. This solution has a specific gravity of 1.037. The molecular weight of formaldehyde is 30.0. to 1.00 ml of this impure stock solution is added quantity sufficient to take the total volume to 500ml. If 1.00

asked by Morgan M on March 18, 2012
88. ## math

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Use the circle graph shown below to answer the question.  If 210 people said football was their favorite sport to watch, how many people were

asked by devorah on February 14, 2019
89. ## College Physics

An x-ray photon collides head-on with an electron and is scattered directly back at 160◦ to its original direction. What is the shift in the wavelength of the incident x-ray? do i need to figure out the "compton shift" in order to solve..can someone

asked by Angie on April 13, 2010
90. ## Cost Volume Profit Analysis (Math)

Margin of safety - 20% Fixed costs - \$900,000 Contribution margin - 25% Break-even - 12,000 units Calculate actual total sales revenue. I have been trying this question out in many different ways however I still cannot solve it. Could someone show me the

asked by Anonymous on October 21, 2016
91. ## Math

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided.    Natalie picked 135 berries in 15 minutes. If she continues picking at that rate, how many total minutes will it take her to pick 486 berries?

asked by Hi i really need help please explain how to do th on February 5, 2019
92. ## physics

please show me in steps how to solve this thanks alot! A bobsled zips down an ice track, starting from rest at the top of a hill with a vertical height of 150m. Disregarding friction, what is the velocity of the bobsled at the bottom of the hill? (g=9.81

asked by y912f on February 14, 2009
93. ## chemistry

0.5 L of a 0.30 M HCl solution is titrated with a solution of 0.6 M KOH. a)What is the pH before addition of KOH? b)What is the total number of moles of acid? c)What is the pH after addition of 125 mL of KOH solution? d)What volume of the KOH solution is

asked by Joe on April 28, 2011
94. ## Business

1. to be a great asset to your company which of the following should you do? a. always look like you're working hard b. be a problem-solver c. be quiet and keep your eyes open d. be friendly with your boss**** 2. When you are required to team up with

asked by Sid.V on December 20, 2018
95. ## health

What does BRFSS stand for? A. Behavioral Risk Formulation Sensation System B. Behavioral Risk Factor Sensation System C. Behavioral Rumination Factor Surveillance System D. Behavioral Risk Factor Surveillance System

asked by Martin1162 on March 9, 2016
96. ## HEALTH

What does BRFSS stand for? A. Behavioral Risk Formulation Sensation System B. Behavioral Rumination Factor Surveillance System C. Behavioral Risk Factor Sensation System D. Behavioral Risk Factor Surveillance System D?

asked by Aya on August 11, 2012
97. ## chemistry

A solution is made by adding 5.0 g Na2CO3 * 10H2O to enough water to make a 500 mL solution. what is the molarity. I have: M=mol solute/liter solution = (5/286)/.5 = .035M 286 is what i got for the molar mass of Na2CO3 * 10H2O Is that correct?? I think it

asked by Maggie on May 3, 2010
98. ## chemistry

A solution has H+ = 5.0 ´ 10–5 M. Assume temperature of the solution is 25 Centigrade.The pH of this solution is?

asked by sidd on June 12, 2012
99. ## algebra

how many liters of a 14% alcohol solution must be mixed with 20 L of a 50% solution to get a 30% solution? Help!

asked by Micah on September 24, 2010
100. ## Chemistry

What is the concentration of a HCl solution if 20.0 mL of the solution is neutralized by 15.0 mL of a 0.10 M Ca(OH)2 solution?

asked by Ivy on December 6, 2010