# 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 80
1. ## science

Calculated how many grams of methane (CH4) are in a sealed 80 mL flask at room temperature (22ºC) and 780 mm Hg of pressure. Show all your work.

asked by bob on April 15, 2013
2. ## Algebra

.428571428571 with the digits 4,2,8,5,7,1 repeating indefinitely in that order. What digit is in the 200th place. To the right of the decimal point? Is the answer 8? Please show your work.

asked by Anonymous on September 3, 2012
3. ## math

useing the rule of 72 estemate how long it will take an investment of \$400 to double if it is invested at 4.5%/year compounded monthly. (show work)

asked by Dane on January 21, 2011
4. ## statistics

The following data lists the average monthly snowfall for January in 15 cities around the US: 20 9 35 46 44 17 32 25 30 14 28 14 9 15 20 Find the mean, variance, and standard deviation. Please show all of your work.

asked by Tywania on January 30, 2012
5. ## Algebra

Find a counterexample to the statement 4^n + 1 is divisible by 5...how do i show my work for this problem? The example in my book is too confusing it doesnt really go into detail but just shows a table.

asked by Tracy on April 30, 2008
6. ## Chemistry

Hey guys, been a long time since I have done this. Please show your work. Thanks a lot! How many grams do 3.6 × 10^20 atoms of sodium weigh? Answer in units of g

asked by Randy on October 25, 2009
7. ## Mrs.Sue

mrs sue i have to go soon can u plzzzz helpppp me i just need ou to answer my questions and show ur work so i can print it and make it a study guide plz

asked by charolette on May 19, 2011
8. ## chemistry

how would i work out the problem for: a sample of oil has a mass of 65g and a volume of 80.0 ml what is its specific gravity. please show formula. thank you. Mary hornbeck

asked by mary- please check for accuracy. on February 20, 2011
9. ## Chemistry test help please

How many liters of chlorine as can be produced when 1.96 L of HCl react with excess O2 at STP Show Work A.0.49L B.0.98L C.1.96L D.3.92L

asked by John on April 22, 2015
10. ## Calculus

Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis. y=ln x, y=0, x=1, x=3 Please show the steps in your work, thanks! :)

asked by Sun on March 27, 2008
11. ## science

A 24.3g sample of a compoud XO2 contains 3.365 x 10^23 oxygen atoms. Determine the molar mass in g/mol of the element X. Show your work.

asked by Adalaide on August 18, 2013
12. ## Pre - CALCULUS

Find the x-intercepts (if any) for the graph of the quadratic function. 6x2 +12x+5=0 Give your answers in exact form. Show your work.

asked by Ciara on April 10, 2015
13. ## Math - Help with radicals please

Please show work Simplify rational 1. 4√(a^6 b^13) / 4√(a^2b) 2.√(2x^3 / 49y^4) Add or Subtract 3. x√(75xy) - √(27x^3y) Multiply 4.(√(5) - 5) (2√(5) + 2) Rationalize the denominator 5. √(25x^5 / 3y^2) 6. 5 / 2-√(7)

asked by Anonymous on February 20, 2013
14. ## trig

use sum or difference identities to find the exact value of the trigonometric function: tan 345 please show work, i cant figure out what im doing wrong!

asked by Anonymous on November 19, 2009
15. ## algebra - Math

Set up fee is \$40.00 per person it is \$800.00 rental per month. How many flights must be sold to maximize profit? show work algebraically

asked by Susan on June 20, 2010
16. ## Chemistry

A 24.3g sample of a compound XO2 contains 3.365 x 10^23 oxygen atoms. Determine the molar mass in g/mol of the element X. Show your work.

asked by Adalaide on August 18, 2013
17. ## Algebra

Please help ASAPPP!!!! I have no idea how to even start on this! f(x)=9x^3+2x^2-5x+4 and g(x)=5x^3-7x+4. What is f(x)-g(x)? Show all of your steps and wrote your final answer in factored form. If someone could help me work through this problem that would

asked by Taylor on April 20, 2016
18. ## Chemistry

How much ice (in grams) would have to melt to lower the temperature of 53.4g of water from 65 C to 0C? I know there are more than one step here, I would appreciate an answer that does not do the work for me, but show me how to lay out the problems and in

asked by Kim on April 26, 2013
19. ## physics

If a freely falling rock were equipped with a speedometer, by how much would its speed readings increase with each second IF it were on a planet where g = 20 m/s2? Show all work leading to your answer.

asked by allexelle on June 24, 2015
20. ## Math

An invoice of \$12,000 is dated April 5. The terms 5/10,n/30 are offered. Find the amount due if the discount is earned. Show your work.

asked by Allie on October 12, 2012
21. ## physics

which of the following properties of a sound wave determines its pitch: wavelength, speed, amplitude, or frequency? Plese show work, Thank you, Silly

asked by silly on May 2, 2011
22. ## math

Solve the following equation: 4/7 x = -16 A)x = 42 B)x = -28 C)x = 23 D)x = -24 Solve the following equation. 4s+13+s=2s+40-6 A)s = 12 B)s = -10 C)s = no solution D)s = 7 You train for the Olympics 120 minutes each day. How many days have you trained when

asked by .. on October 7, 2016
23. ## Help Please Stat-Math

According to an airline, a particular flight is on time 75% of the time. Suppose 140 flights are randomly selected and the number of on time flights is recorded. Determine if you should use the Binomial model or Normal model to solve this problem. show

asked by MELISSA on April 13, 2013
24. ## Programming logic and design

Using python write a program that does the following: •Create the logic for a program that calculates and displays the amount of money you would have if you invested \$3000 at 2.65 percent interest for one year. •Create a separate method to do the

asked by Christina on April 17, 2015
25. ## Chemistry(Please check answers)

1) The Ka for acetic acid is 1.8e-5. What is the pH of a 3.18M solution of this acid? I did 1.8e-5 = x^2/3.18 x=sqrt 1.8e-5 X 3.18 = 7.56e-3 pH=-log(7.56e-3) = 2.12 The pH is 2.12 2) At 25 degrees celsius, the pH of a 1.75M NaCN solution (the Ka for HCN is

asked by Hannah on April 1, 2012
26. ## biology

Which of the following are three common characteristics of echinoderms? a. tube feet, circulatory system, body symmetry b. marine-dwellers, endoskeletons, water-vascular system c. bilateral symmetry, ossicles, respiratory system d. mouths, protosomes, body

asked by Lily on November 15, 2010
27. ## chemistry

X is a solution,of dibasic of H2X. G is a solution containing 1.00g of NaOH in 250cm3 of solution . 24.60cm3 of solution F required 25.00cm3 of solution G . From your result and information provided above. (I)concentration of G in mol/dm3 (ii)

asked by john kelechi on May 25, 2014
28. ## chemistry

What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

asked by Anonymous on February 10, 2011
29. ## chemistry

What is the percent by mass of 3.55 g NaCl dissolved in 88 g H2O? 2. A solution is made by adding 1.23 moles of KCl to 1000.0 g of water. What is the % by mass of KCl in this solution? 3. If you have 100.0 mL of a 25% aqueous solution of ethanol, what

asked by Anonymous on February 10, 2011
30. ## Math-reasoning

A farmer wants to build a straight fence with a post every 7 feet. Each end has a post. For a fence that is 49 feet long, how many posts will the farmer need? Describe the quantities given Tell how you can show the relationships in the problem Solve and

asked by Kennedy on May 23, 2016
31. ## Calculus

Hello, my question is the following: The derivative of f(x) = ln(x) is given by f'(x) = 1/x. Find an equation of the tangent line to the graph y = ln(x) that passes through the point (0,0). So if I go through this using the typical method I use I have the

asked by Joshua on September 27, 2014
32. ## General Chemistry

The photogenic work function of a metal is the minimum energy needed to eject an electron by irradiating the metal with light. For calcium, this work function equals 4.34 x 10^-19 J. What is the minimum frequency of light for the photoelectric effect in

asked by Kat on January 13, 2008
33. ## Chemistry

What is the pH of a solution prepared by dissolving 1.23g of 2-nitrophenol (FM 139.11) in 0.250 L? Well so, i calculated the no.moles of 2-nitrophenol, and divided it by 0.250, to get the molarity which was 3.53E-2. Since the molar ratio of dissociation is

asked by John on August 31, 2014
34. ## Computers

I know that there are a whole bunch of proxy servers out there but I can't seem to find one that will help me get around the system. I am wanting to use this proxy address to help me access school resource websites, but they're all blocked. HELP!!!! Please

asked by Anonymous on October 24, 2012
35. ## Chemistry

A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this

asked by Paul on February 1, 2011
36. ## Chemistry

A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this

asked by Paul on February 1, 2011
37. ## Chemistry

A student makes a solution by dissolving 55.8 grams of potassium hydroxide in 875.0 grams of water. The resulting solution has a density of 1.07 grams per milliliter. 1. What is the volume of this solution? 2. Calculate the % concentration of this

asked by Paul on January 31, 2011
38. ## Finance

You want to start a summer business to earn money. What will you do? You have to consider how much money you can afford to invest in this business, how much it will cost you to make each item, and how much you’re going to charge for each item. Research

asked by EmDaWgYy on December 19, 2018
39. ## Precalculus

Solve (log x)^2 = log x Also, when will their be a possibility that an equation will have an extraneous solution? Like if you got two solutions for a log equation, will a negative solution for x automatically be extraneous?

asked by marcus on November 20, 2012
40. ## Chemistry

What is true about a system in chemical equilibrium? No reactants remain in the system. There are no products in the system. The amount of product equals the amount of reactant. The amount of reactant changes, but over time remains about the same.

asked by Viola on April 23, 2012
41. ## social studies

Which best illustrates the Socratic method? A. A teacher gives a lecture while students take notes. B. Students read a book independently and write a summary. C. Students work in groups to complete an art project. D. The teacher asks a series of questions

asked by esksjnjsd on February 25, 2019
42. ## World History

Which best illustrates the Socratic method? 1.A teacher gives a lecture while students take notes. 2.Students read a book independently and write a summary. 3.Students work in groups to complete an art project. 4.The teacher asks a series of questions and

asked by triggatre on September 24, 2018
43. ## Science

You need to separate a mixture of iron filings, sand, and salt. Which of the three would be easiest to separate first and what method would be best? A) The salt would be easiest to separate, and using a magnet would be the best method. B) The iron filings

asked by I Dont Matter on January 2, 2018
44. ## Chem

A few classmates and I were arguing about a problem we had to do for homework. The problem states: Limestone, CaCO3, when subjected to a temperature of 900 degrees C in a kiln, decomposes to calcium oxide and carbon dioxide . How much heat is

asked by Jess on February 1, 2007
45. ## Algebra

Graph the solution set of the system of inequalities and give the exact coordinates of the intersection points of the related equations: y>x^2 -8 X+y≤1, The closest points I'm getting is (-2.5,-1.8) and (2.5,-1.5) but I feel like they're incorrect

asked by Jen on November 24, 2017
46. ## Math

Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y

asked by Heather on March 21, 2015
47. ## biology

Most automobiles have water-cooled engines. What must be true about a solution that can replace water in the cooling system, such as antifreeze? I know this is the second time I'm posting this question, but it's been hours and still no one's responding.

asked by lamiya on September 12, 2009
48. ## pre calc

Find the values of b such that the system has one solution. x^2 + y^2 = 36 y= x+b and then they give me an answer box b=_________ (smaller value) b=_________ (larger value) i have absolutely no idea how to even begin this and what they are asking. could

asked by gabs on June 7, 2011
49. ## Math

Hi! My teacher wanted me to sketch the graph of solution set of each system. For the first question, she wants me to use the slope intercept form and the second question using a table of values, but, I'm a little lost. Can someone help? Thanks! 1.) 3x + 2y

asked by Heather on March 21, 2015
50. ## calculus

how do you solve the integral of 1/[(square root of x)(lnx)] from 2 to infinity? i did the p- integral theorem with 1/square root of x and got it to be a divergent integral. however i was told this was the wrong way and that i should do it by integration

asked by kathryn on August 25, 2009
51. ## Physics

A block on a spring moves in SHM with amplitude 0.23 m and period 3.8 s. The mass of the block is 2.1 kg. What is the total energy of the system? Can someone please take me step by step and show me what my answer should be? Thanks!

asked by Kate on June 24, 2012
52. ## physics

Please help. If you need the figure, let know how I can show you and I will do it. A particle moves in the xy plane (see the figure below) from the origin to a point having coordinates x = 7.00 m and y = 4.00 m under the influence of a force given by F =

asked by joy on March 13, 2018
53. ## Algebra 2

I am stuck on this problem that I have tried to solve so many times! The question is:The length of a rectangle is four more than twice the width. If the perimeter of the rectangle is 32 cm, what are the length and width of the rectangle? Here is my work:

asked by Mick on October 17, 2015
54. ## English

Hello. I will really appreciate some help. 1)Which preposition is correct in the context "to work at/in a company"? 2)Is it "a vacancy at" or "in our company"? 2)Which is the correct word order in the following word-group: "British TV dance show" or

asked by Ilma on April 11, 2012
55. ## Chemistry-kD

A chemical "X" is included in a water in a pond. 1)5dm3 of water from the pond is taken and is mixed with 200cm3 CHCl3.Then CHCl3 layer is taken out separately and left to vaporize. Then the remaining mass of X is measured.There was 10mg. 2)The remaining

asked by Shenaya on May 29, 2017
56. ## math retry

Is the answer to log sub a 2 = .4, log sub a 3 = .5, log sub a 5 = .8 is it 2.9? Is the answer to log sub 5 (2x+3) = 2 is the correct answer 11? Is the solution to 8^x=16^x+2 is the solution 2? Are you guessing? Something is wrong. Let me see your work.

asked by Sara L. on January 13, 2007
57. ## Math

Please show me how to set this up: A local citizen wants to fence a rectangular community garden. The length of the garden should be at least 110ft., and the distance around should be no more than 380ft. Write a system of inequalities that models the

asked by Mary on February 3, 2012
58. ## Organic-Chem Help

You wish to purify by distillation a material that has a boiling point of 205 C and reacts with air but this material will decompose if heated above 150 C. How would you set up the system to distill this material? Show steps Pleaseeeee!!!!!!!!!! Thank

asked by Tanya on September 12, 2014
59. ## Chemistry-pH

Question: v cm3 of a 0.2 M HX solution and v cm3 of 0.1 M KOH solution is mixed.pH of the final solution is 5.3 1)Find ka of HX 2)Find the moles of NaOH and HCl should be added respectively,for the pH of 1dm3 of the solution to increase and decrease by 1

asked by Shenaya on May 31, 2017
60. ## chemistry

To create a 0.1 M carbonate buffer pH = 10.2. You choose to use a combination of HCO3- / CO32-. This buffer system has pKa = 9.9.   a) Calculate how much you need to weigh in each of the sodium salts, NaHCO3 and Na2CO3, to create 1.0 L carbonate (with

asked by Maria on September 9, 2016
61. ## Advance Accounting

How do I prepare a consolidated elimination worksheet when the parent purchases all of subsidiary's bonds on open market?

asked by Martha on February 20, 2011
62. ## sociology

What types of situations or examples that can result in the elimination of functionalist theory when considering the social institution of the family?

asked by Sharon on May 7, 2011
63. ## discrete mathematics

how many baseball games of single elimination must be played by 421 teams in a tournament before a winner is determined

asked by confused on October 3, 2013
64. ## finance

BBA307: Finance Exercise 8A Assignment 8.1 Assignment 8.1: Capital Budgeting Application You have just graduated and one of your favorite courses was Financial Management. While you were in school, your grandfather died and left you \$1 million. You have

asked by nancy on June 28, 2012
65. ## Chemistry

How many grams of NaNO2 must be added to 1 liter of 1.00 M HNO2 solution in order to prepare a buffer solution with pH = 4.14? pH = 3.14? My work: ka = pH(buffer ratio) 4.5 * 10^-4 = 1.000*10^-4.14 (x M of base/1.00 M of acid) x = 6.21 6.21 M = (6.21

asked by Maddy on February 21, 2016
66. ## Algebra

Suppose a triangle has angles A,B, and C. Angle C is the right angle. Find the measures of the other sides to the nearest whole number. < means angle symbol. 1.BC=9,m

asked by Casey on April 1, 2008
67. ## chemistry

A potassium permanganate solution containing 1.58 g of KMnO4 per liter is added into 5 ml of an acidified iron (||) sulfate solution .Decolorizing of KMnO4 solution ceases when 10ml of the solution has been added. Calculate the mass of FeSo4.7H2O which has

asked by angy on January 17, 2016
68. ## Chemistry

3. 25.0 mL of a 0.50 M solution of acid HA was combined with 25.0 mL of a 0.50 solution of base MOH in a calorimeter with a calorimeter constant of 13.5 J/ C. The initial temperature of the solution was 23.3 C and the maximum temperature was 34.7 C. The

asked by Kim on April 16, 2013
69. ## Nutrition

in 200 to 300 words, the path food follows through the digestive system and how digestion occurs in each of the following parts of the digestive system. Be sure to include descriptions of other organs or components of the digestive system, including: o

asked by Bev on September 25, 2008
70. ## geometry

User: Courtney Thompson In Course: Geometry V8 ( 2167) Instructor: Tracie Morgan -------------------------------------------------------------------------------- WARNING: You must not leave this exam form! If you try to click back into this exam again

asked by courtney thompson on December 31, 2008
71. ## Physics

i41 tinypic com/2qna74k png (add the periods) For the vectors in the figure, with a = 6.4, b = 2.5 and c = 6.87. Calculate a(dot)b calculate a(dot)c calculate b(dot)c I got 0 for a(dot)b but the same method (ac*cos(theta)) does not work for the other two,

asked by John brown on January 26, 2016
72. ## Math

Jamie is saving money to buy a new video system. So far, he has saved \$16, which is 15% of the total cost of the system. What is the total cost of the system?

asked by Amy on January 27, 2015
73. ## Chemistry

Calculate the pOH, pH, and percent protonation of solute in the following aqueous solution. 0.059 M quinine, given that the pKa of its conjugate acid is 8.52. Please show me how to do it and not just the answers. Thanks!

asked by Alania on October 29, 2010
74. ## Chemistry

  show that the time dependent expectation value for the position x and momentum p match the solution of newton classical equation for HO drive the amplitude of vibration?

asked by lolo on March 16, 2015
75. ## Math

1. Solve cos x(cos x - 1) = 0. Ans: pi/2 + n pi, and 2 n pi 2. 2 cos x - 1 = 0 Ans: x = pi/3 + 2 n pi, and x = 5pi/3 + 2 n pi 3. Solve 4 sin^2 x - 3 = 0 Ans: x = pi/3 + n pi, and 2pi/3 + n pi 4. What is one solution to (sqrt2) sinx + 1 = 0? Ans: x = pi/6

asked by Anonymous on October 18, 2015
76. ## Maths

Brent's normal wage is \$672 for a 40 hour week. He worked overtime and earned \$873.60 in one week. How many hours of overtime did he work if he was paid double time for the overtime worked? Method please

asked by Musibaba on March 23, 2011
77. ## Algebra

Hello again! I've got two questions I'm stuck on in an algebra worksheet. 1. Solve the equation: 2𝑦 + 5 = 1/2(4𝑦 + 8) (I really don't know how to solve these correctly, I've tried everything.) 2. The density of an object is calculated using the

asked by Rocket on October 20, 2016
78. ## alg.

Solve. (If there is no solution, enter NO SOLUTION.) y= x^2-x-4 y=x+4 (x, y) = ( , ) (smaller x-value) (x, y) = ( , ) (larger x-value) x^2 + y^2 =10 x+y=4 (x,y)= ( , ) smaller value (x,y)= ( , ) larger value

asked by HELP on April 22, 2014
79. ## programming logic

The Banking e-Teller system allows bank customers to perform ATM transactions from their cell or smart phones. BET will allow customers to check balances, make remote photo capture check deposits, and perform balance transfers to their checking or savings

asked by david on January 22, 2013
80. ## Science/Computer Programming

The purpose of this exercise is to practice reading code and recognizing the traversal patterns in this chapter. The following methods are hard to read, because instead of using meaningful names for each variable and method, they use names of fruits. For

asked by Anonymous on February 8, 2019
81. ## Art

artists make shapes in the background smaller than shapes in the foreground to communicate their distance from the viewer. how else might a landscape artist show shapes in the back ground to depict their distance from the viewer? a. show shapes with bright

asked by bunny64 on April 1, 2016
82. ## Chemistry

A 0.60 L portion of a 1.2 M AgNO3 solution is mixed with a 0.3 L potion of a 1.2 M Na2CrO4 solution in an constant pressure calorimeter. Upon mixing, the solid Ag2CrO4 is formed and the heart released is 48.2 kJ. The specific heat of the solution is 4.18

asked by Kyo on June 9, 2010
83. ## Calc Help

q=(1000/p+1)^2 - 1 find q' Please help. Question on review sheet. I will be glad to help you, or critique your work. What do you think the way to solve it is>

asked by Evan on May 1, 2007
84. ## Calc

how do i begin to solve this? integral of (1/x^2)sec(1/x)tan91/x)dx I tried substituting tan(1/x) for u but i couldn't get it to work...

asked by Katie on February 27, 2010
85. ## Algebra 1

3r-5s=-35 2r-5s=-30 multiply equation 2 by -1 then add the two equations. s will cancel and you can solve for r. Post your work if you need further assistance.

asked by Candice on January 18, 2007
86. ## math

my daughter is working on 5n + 2n - (3-10N) can someone walk me through how to solve problems like this I have not been in school in over 20yrs. I think you have to work () first? but really do not know HELP please thank you

asked by kevin on September 13, 2012
87. ## Math

I cannot figure this out I keep getting the order pair(1.24,-3.44), but it does not work when I check. Can you help me? 5x+5y=-11 7x-3y=19 The other oneI needed to solve is this Question: 4y+3y-35...is that right?

asked by shelley on December 20, 2009
88. ## math

how do i solve 8 times 493 using distributive property. then draw an array showing work

asked by lisa on November 30, 2010
89. ## Chemistry HELP!

In order to standardize a KMnO4 solution, 0.3498 g Na2C2O4 was dissolved in 30 mL water and 15 mL 3.0 M H2SO4. The KMnO4 solution was added to the Na2C2O4 solution until a pale pink color persisted. The titration took 29.5 mL of KMnO4 solution. What is the

asked by Prue on May 6, 2013
90. ## Chemistry HELP!

In order to standardize a KMnO4 solution, 0.3498 g Na2C2O4 was dissolved in 30 mL water and 15 mL 3.0 M H2SO4. The KMnO4 solution was added to the Na2C2O4 solution until a pale pink color persisted. The titration took 29.5 mL of KMnO4 solution. What is the

asked by Prue on May 6, 2013
91. ## chemistry

Lead iodide is a relatively insoluble compound. It can dissolve from the solid phase into the aqueous phase with a Keq of 0.00027. If the concentration of lead iodide in the aqueous phase 0.125 M, then: a. we need more information to determine the progress

asked by danny on February 28, 2015
92. ## Chemistry

A few questions I don't really get and need to see the work for A 50.0 mL sample of 0.55 M benzoic acid, C6H5COOH, a weak monoprotic acid, is titrated with 0.51 M NaOH. Calculate the pH at the equivalence point. Ka of C6H5COOH = 6.5 multiplied by 10-5.

asked by Dubs on April 22, 2010
93. ## chem

What volume of a 0.2 N NaoH solution do you expect to use in order to titrate 25ml (sample out of 250ml) of a 0.200 N oxalic acid solution? heeeelp! Equation is H2C2O4 + 2NaOH==> 2H2O + Na2C2O4 I assume that is 25.00 mL H2C2O4. milliequivalents(meq) NaOH =

asked by Melba on September 26, 2006
94. ## Physics

Collapsible plastic bags are used in hospitals for infusions. We want to use such a bag to infuse a electrolyte solution into the artery of a patient. For this we mount the bag at a height h above the arm of the patient. Assuming that the particular gauge

asked by Sam on November 25, 2009
95. ## Algebra 2 Help!

1.) Simplify the expression. [sqrt3 + 2i][sqrt3 - 2i] 2.) Solve using the square root property. (y - 4)2 = -18 3.) Rewrite the the function in vertex form. You may use completing the square or an alternate method. f(x) = 5x2 - 10x + 3 4.) Use the

asked by Lori on February 28, 2014
96. ## Math - derivative of sinusoidal (check + help)

h(t) 0.6cos(2t) + 08 sin(t) h'(t) = v(t) = -1.2sin(2t) + 0.8cos(t) find the vertical displacement when the velocity is 0.8m/s how do i solve v(t) = 0.8m/s I tried the normal way by equating and factoring, however two answers are obtained and the second

asked by Farah on November 28, 2010
97. ## Physics/Math

A single force acts on a 5.0 kg particle-like object in such a way that the position of the object as a function of time is given by x = 3.0t - 4.0t 2 + 1.0t 3, with x in meters and t in seconds. Find the work done on the object by the force from t = 0 to

asked by Technoboi11 on March 3, 2007
98. ## math

This was on my test and have a few more question that is from my test. 18.The Sum of five unequal natural numbers is 90. The second largest of these five numbers can be at the most? A.19 B.41(41 is the right answer) C.44 D.43 E.42 please show work. 22.In

asked by Mat on July 30, 2014
99. ## Math

Alyssa is a chemist with Gemco Pharmaceutical Company. She needs to prepare 12 ounces of 9% hydrochloric acid solution. The only solution she currently has available are 4% and 12% hydrocholoric acid. How much should she use of each solution to obtain the

asked by John on March 9, 2011
100. ## science

A solution of trioxonitrate(V) acid contained 0.67g in 100cm^3. 31.0cm^3 of this solution neutralized 2.5cm^3 of a sodium trioxocarbonate(IV) solution. calculate the concentration of the trioxocarbonate(IV) solution.

asked by Anonymous on November 23, 2018