# 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 731
1. ## physics

A charge of +24.3 µC is located at (4.40 m, 6.02 m) , and a charge of -13.1 µC is located at (-4.50 m, 6.75 m) . What charge must be located at (2.23 m, -3.01 m) if the electric potential is to be zero at the origin? ANyone have any advice? Find the

asked by jay on July 9, 2007
2. ## math

Fifteen percent of the seniors voted for Joe. If 289 seniors voted for tehother candidates, how many seniors voted in the election? Let the total number voting be N. 0.85 N = 289 Solve for N

asked by matt on February 27, 2007
3. ## business

Can anyone help with these questions??? 11. Nearly a week before Hurricane Katrina reached New Orleans, Wal-Mart began moving trucks and supplies into position, as specified in the company's ________ plan. A. contingency B. operational C. tactical D.

asked by redfish on June 29, 2013
4. ## Science

After an accident, a 60.0 kg Inuit girl finds herself at rest on the frictionless ice of a frozen lake, 15.0 m north of her stationary 150 kg sled. Fortunately she is connected to the sled by a rope of negligible mass, so she begins hauling the rope in,

asked by Sam on May 30, 2018
5. ## Physics

A 1300kg car going 20m/s has to stop suddenly. The driver locks the brakes, and the car skids to a halt in a distance of 64m . What was the car's acceleration while stopping? How much work was done by friction to stop the car? What is the coefficient of

asked by Anonymous on October 9, 2014
6. ## physics

A 5kg ball is thrown upward with an initial speed of 30m/s. Suppose there is a constant air resistance of 25N opposing the motion during its entire up and down path. How much work was done by air resistance during the entire path up and down. Wfric= -f X

asked by dipset on December 20, 2010
7. ## physics

A piece of metal with a density of 4.69g/cm^3 and a mass of 1500 grams, is submerged in a container of oil, with a density of .75 g/cm^3. What volume of oil does the metal displace? Work: 4.69g/cm^3->4690kg/m^3 1500g->1.5kg .75g/cm^3->750kg/m^3 I'm not

asked by Anonymous on December 26, 2007
8. ## Financial maths

Tara is saving for an overseas trip. Her taxable income is usually about \$20 000. She estimates that she will need \$5000 for the trip, so she is going to do some extra work to raise the money. How much extra will she need to earn in order to have \$5000

asked by Pete on February 25, 2017
9. ## French

Le futur proche. Are these correct? -They are going to see the film. Ils vont regarder le film. -She is going to leave for work. Elle va partir le travail. -They are going to play sport. Ils vont faire le sport. -You are going to listen to music. Tu vas

asked by Miche on November 26, 2007
10. ## physics

A 23.1 kg block is dragged over a rough, horizontal surface by a constant force of 95.0 N acting at an angle of angle 29.3 ° above the horizontal. The block is displaced 5.50 m, and the coefficient of kinetic friction is 0.341. Find the magnitude of the

asked by Elisabeth on September 15, 2011
11. ## Physics

A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 3.82 x 105 N. In being launched from rest it moves through a distance of 57.2 m and has a kinetic energy of 5.71 x

asked by Ricardo on December 14, 2012
12. ## Algebra

I am supposed to find the ticket sales of a concert using this formula: N(x)= -0.3x^2 + 6x + 15 X represtents the number of days since the concert was first announced. I need to find out when daily ticket sales will peak and how many tickets will be sold

asked by Laura on October 12, 2008
13. ## Calculus

The base of a solid is bounded by the curve y=sqrt(x+1) , the x-axis and the line x = 1. The cross sections, taken perpendicular to the x-axis, are squares. Find the volume of the solid a. 1 b. 2 c. 2.333 d. none of the above I got a little confused, but

asked by Anonymous on May 11, 2018
14. ## Physics

A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.10 105 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 4.30 107 J

asked by Donald on November 11, 2012
15. ## Physics

A fighter jet is launched from an aircraft carrier with the aid of its own engines and a steam-powered catapult. The thrust of its engines is 2.1 105 N. In being launched from rest it moves through a distance of 87 m and has a kinetic energy of 3.8 107 J

asked by Patty on November 13, 2010
16. ## English Technical writing pre-law

I am writing a mini appellant brief and I have to suport why a university is not liable for the harassment of its two employees a male and female. The female was harassed by another employee by sexual comments the male was harassed by a hostile work

asked by Jenea on April 30, 2012
17. ## English

In “The Lottery,” how does the fact that names are called and people select their piece of paper work to create suspense? a. Readers know males draw the papers. b. Readers watch every family participate. c. Readers wonder what the papers signify. d.

asked by Kaai97 on April 25, 2016
18. ## algebra

Find all positive values for k for which each of the following can be factored. x^2+3x+kthe coefficent of the middle term is 3 3=2+1 k=2*1=2 did i do this right This one I had no Idea where to start can some one please explain it to me x^2+x-k The second

asked by allen on May 9, 2007
19. ## physics

A shopper pushes a grocery cart 20m at constant speed on level ground against a 35N frictional force. He pushes in a direction 25 degrees below the horizontal. What is the work done on the cart by gravity? I know you can use W=Fdcos(theta) where

asked by Juliette on October 4, 2010
20. ## Physics

An airplane must reach a speed of 185 mi/h to take off. If the runway is 467 m long, what is the minimum value of the acceleration that will allow the airplane to take off successfully? m/s2 I have been trying the formula vf^2=Vi^2+2AD and solving for A SO

asked by David on January 23, 2011
21. ## History

How did the Chinese government react to the fall of Communist Russia? The Chinese government predicted that its own system could collapse, since it had been based on the Soviet Communist model. When Soviet states withdrew from the USSR, Chinese diplomats

asked by Heather on August 5, 2018
22. ## Math

In a group of quarters and nickels, there are four more nickels than quarters. How many nickels and quarters are the if the coins are worth \$2.30? Plsmshow the solution, thanks

asked by Jude on September 24, 2013
23. ## chem

You need to make up 2 litres of a 4 M solution of sodium chloride. What mass of sodium chloride do you need? (mwt of sodium chloride = 58.44)

asked by dfghjm on March 27, 2015
24. ## Physics

Another Question---- A ball of clay of mass m travels with a velocity v in a path tangent to a disk of radius R and mass M. The clay collides with the disk tangentially to its outer rim (a totally inelastic collision) and the clay and disk begin to spin

asked by bobby on August 3, 2007
25. ## physics

How much work is required to lift a 600-kg satellite to an altitude of 4 * 10^6 m above the surface of the earth? The gravitational force is F=GMm/r^2, where M is the mass of earth, m is the mass of the satellite, r is the distance between them. The radius

asked by Allison on February 11, 2011
26. ## 5th grade math (word problems)

Problem: A receipe for 4 dozen cookies requires 1 1/2 cups of flour. How much flour is needed for 1 dozen? work: 4 divided by 1 1/2 = 4/1 x 3/2 = 4/1 x 2/3 = 8/3 cups of flour Can you explain why i don't need to change 4 dozen to 48 and then divide by 1

asked by Alex on April 23, 2013
27. ## math

At the greenhouse where you work you need to make soil and vermiculite mixtures for potting plants. Flowering bushes need a mixture of 70% soil and 30% vermiculite by volume. About how many buckets of vermiculite should you add to 5 buckets of soil?

asked by james on April 7, 2011
28. ## Physics

An electric motor is used to lift a load of bricks through a vertical height of 20m.the tension in the cable attached to the electric motor is 2000N.calculate work done by the electric motor on the bricks

asked by Wendy on March 18, 2019
29. ## Stats

Commuters were asked how many times a week they stop for coffee on their way to work. A survey found a mean of 3 times a week with a standard deviation of 0.55. What is the probability that in a group of 36 people they stop more than 3.2 times per week?

asked by Alley on December 3, 2012
30. ## pre calc trig check my work please

sin x + cos x -------------- = ? sin x sin x cos x ----- + ----- = sin x sin x cos x/sin x = cot x this is what i got, the problem is we have a match the expression to the equation work sheet and this is not one of the answers. need to figure out what im

asked by Anna on October 20, 2010
31. ## statistics

Commuters were asked how many times a week they stop for coffee on their way to work. A survey found a mean of 3 times a week with a standard deviation of 0.55. What is the probability that in a group of 36 people they stop between 2.8 and 3.25 times per

asked by Alley on December 3, 2012
32. ## math

Set up 2 equations that can be used and solve. Phil reported that the receipt from a recent concert totaled \$916 furthermore he announced that 560 people attended the concert. Students were charged \$1.25 each for admission to the concert and adults were

asked by keyla on November 15, 2012
33. ## Physics

how to solve this? the answer key says 10 floors (11 + the ground floor) An elevator starts from rest at the ground floor of the building. It experiences an acceleration a=0.500m/s^2 and reaches a velocity of 5.48m/s. What is the floor reached by the

asked by Beyonce on October 16, 2018
34. ## AP Physics- Impulse

A tennis ball traveling at 25 m/s has a mass of 58.5 g and bounces off a wall with a speed of 22.5 m/s. The impact took 3.33 ms. What is the magnitude of the average force exerted by the wall on the tennis ball? I want to solve for acceleration to plug

asked by Anonymous on August 29, 2017
35. ## Math

Tanker boats cannot be in the bay when the depth of water is less or equal to 25 feet. Set up an inequality and solve it graphically to determine all points in time, t, on the interval 0 less than or equal to t less than or equal to 24 when tankers cannot

asked by Ruth on August 22, 2012
36. ## STATS

Solve the problem. Round the point estimate to the nearest thousandth. 22 randomly picked people were asked if they rented or owned their own home, 9 said they rented. Obtain a point estimate of the proportion of home owners. A) 0.290 B) 0.591 C) 0.636 D)

asked by Anonymous on September 25, 2011
37. ## math

A taco stand sells tacos for \$3.25 each. The stand’s expenses for the day are \$210. Define your variables and write an inequality to represent the amount of tacos they need to sell per day to make a profit, and then solve the inequality. Provide your

asked by Anonymous on December 18, 2014
38. ## Math-functions

A function, y = f(x), originally has a domain of x equal or bigger than 4 and a range of y equal or smaller than 1. Determine the new domain and range of y=-2f(-x+5)+1 after applying all transformations. (Hint: Sketch the graph&apply the transformations)

asked by Alana K on July 9, 2018
39. ## 5th grademath

a group of fifth grade students are going camping. They will hike from Wellington to Ruapehu. Then they will follow a trail for another 1/2 mile to their campsite. The distance from Wellington to Ruapehu is 200 miles. About how long would it take the

asked by hope on September 15, 2010
40. ## Algebra

To rent a certain banquet hall, there is a reservation fee of \$4200.00 and an additional fee of \$180.00 per hour. The Russell family wants to spend at most \$5100.00 on renting the hall. What are the possible amounts of time for which they could rent the

asked by Rachal on January 23, 2011
41. ## Math

Hello everyone. Please don't leave. I am stuck in math, but i want to solve it by myself, but have a small question. So basically, there are 1,000 telephones made a day. They take 30 out and test them. It is brought to their attention that 9 are defective.

asked by Confused Child on May 28, 2019
42. ## Math-word problem

To rent a certain banquet hall, there is a reservation fee of \$4200.00 and an additional fee of \$180.00 per hour. The Russell family wants to spend at most \$5100.00 on renting the hall. What are the possible amounts of time for which they could rent the

asked by Rachal on January 24, 2011
43. ## AP Physics - Fluids

A 6.0-cm diameter horizontal pipe gradually narrows to 4.0 cm. When water flows through this pipe at a certain rate, the gauge pressure in these two sections is 32 kPa and 24 kPa, respectively. What is the volume rate of flow? I know to use Bernoulli's

asked by Henry on November 20, 2009
44. ## Calculus

I have a differential equation stating solve: y'=(y-1)(y+1) when y(0)=3 I separated the dy/dx so I got dy/(y-1)(y+1) = dx took the integral of both sides and solved with PFD I then got that x= 1/2 ln(y-1) - 1/2ln(y+1) +c I solved for C and got that C=.3466

asked by Maddie on April 7, 2018
45. ## business and finance

Please hel me to solve the following applications. Business and finance. A store has T-shirts on sale at 2 for \$5.50. At this rate, what do five T-shirts cost? Thank you for using the Jiskha Homework Help Forum. Why not find out what one shirt costs first?

asked by carmen on April 1, 2007
46. ## Civics

Under the Articles of Confederation, there was no separate judicial branch. Which of the following problems did this create? A. Judges could not make any rulings on cases involving the state. B. People had nowhere to go if they had a dispute with the

asked by The dancing potato on September 28, 2018
47. ## successful writing at work

2. a. student ID number- not on resume b. social security number – not on resume c. the Zip code of your references’ addresses d. a list of all your English courses in college e. section numbers of the courses in your major f. statement that your are

asked by gawoman on November 18, 2010
48. ## MTH 157

I need help on these two questions. 1. Describe what happens to the three points of concurrency that determine the Euller lines when the triangle is (a) isosceles, (b) equilateral 2. Which of the following triples of numbers can be the sides of a right

asked by Rayna on August 21, 2010
49. ## thermal physics

The temperature of 7.10 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ÄEint in internal energy of the gas, and (d) the change ÄK in

asked by chirayu on April 9, 2009
50. ## science

Two diamonds begin a free fall from rest from the same height, 1 s apart. How long after the first diamond begins to fall will the two diamonds be 10 m apart? The part that confuses me is when the diamonds are 1s apart. s=(-1/2)g*t^2 At t=1sec the first

asked by Jen on September 12, 2006
51. ## Physics

A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 45.0 m/s. The bat does Wnc = 65.0 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above

asked by Natasha on March 14, 2012
52. ## physics

The temperature of 4.60 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in

asked by tony on April 21, 2011
53. ## physics

The temperature of 6.80 mol of an ideal monatomic gas is raised 12.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in

asked by san on November 11, 2010
54. ## Physics

A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 50.0 m/s. The bat does Wnc = 65.0 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above

asked by Ben on October 15, 2012
55. ## physics

The temperature of 4.60 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in

asked by niki on April 22, 2011
56. ## physics

The temperature of 7.10 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ÄEint in internal energy of the gas, and (d) the change ÄK in

asked by sweety on April 8, 2009
57. ## math

Jamal got a job working on a assembly line in a toy factory, on the 20th day of work, he assembled 137 toys, he noticed that since he started , every day he assembed 3 more toys then the day before , how many toys did jamal assemble all together during his

asked by Annie on January 3, 2012
58. ## Physics

A pitcher throws a 0.140-kg baseball, and it approaches the bat at a speed of 35.0 m/s. The bat does Wnc = 65.0 J of work on the ball in hitting it. Ignoring air resistance, determine the speed of the ball after the ball leaves the bat and is 25.0 m above

asked by Xavier on October 24, 2010
59. ## physics

a car of mass 1000 kg moving at a speed of 20 m/s is brought to rest through a distance of 100 m by applying the brakes.a)calculate the accleration of the car.b) calculate the force by the brakes assuming that is constant and there is no other

asked by pherlysstar on April 7, 2017
60. ## physics

The temperature of 2.10 mol of an ideal monatomic gas is raised 17.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in

asked by Anonymous on April 23, 2012
61. ## physics

The temperature of 7.10 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ÄEint in internal energy of the gas, and (d) the change ÄK in

asked by sweety on April 8, 2009
62. ## math

This is an SAT prep question. A woman drove to work at an average speed of 40 miles per hour and returned along the same route at 30 miles per hour. If her total traveling time was 1 hour, what was the total number of miles in the round trip?

asked by Stella on October 26, 2008
63. ## physics

The temperature of 4.60 mol of an ideal monatomic gas is raised 15.0 K in an adiabatic process. What are (a) the work W done by the gas, (b) the energy transferred as heat Q, (c) the change ΔEint in internal energy of the gas, and (d) the change ΔK in

asked by tony on April 21, 2011
64. ## Multivariable Calculus - Green's Theorem

Compute the line integral of F = along the path from A to B. The path from A to B is not closed, it starts at A which has coordinates (-1,0) goes to (1,0) then goes up to (1,1) then left to (-2,1) then down to (-2,-1) and finally stops at B at (-1,-1).

asked by Calvin on November 16, 2010
65. ## history

Which option accurately describes the impact of the Roman Catholic Church during the Middle Ages? The Christian Church had a civilizing influence on the Britons, providing a unified belief system, shared scripture and teachings, and construction of

asked by Anonymous on November 14, 2018
66. ## history

Which option accurately describes the impact of the Roman Catholic Church during the Middle Ages? The Christian Church had a civilizing influence on the Britons, providing a unified belief system, shared scripture and teachings, and construction of

asked by Anonymous on November 14, 2018
67. ## physics

A force of 64 N is required to keep a model power boat moving at a constant speed through the water on a pond. How much work is done in moving the model power boat a distance of 25 m?

asked by Anonymous on February 7, 2012
68. ## Math

The perimeter of an isosceles triangle is 36 meters.Five times the length of the base is 2 meters less than three times the length of each of the congruent sides.How long is each side of the triangle? Work- a+b+c=36. 5(b)=3(c)-2

asked by Genell on February 6, 2016
69. ## Chemistry

Given the following: 4Al+ 3O2 ==> 2Al2O3 If 3.17g of Al and 2.55g of O2 are available, which reactant is limiting? My answer is: 1.59 mol Al2O3 and 1.70 mol Al2O3. Al is limiting. Is my answer and work correct?

asked by Kylee on June 10, 2017
70. ## Algebra II

The Officejet printer can print a dissertation in 10 minutes. It takes the Deskjet printer 16 min to copy the same document. If the two machines work together, how many minutes will it take to copy the document?

asked by Kristi on March 11, 2010
71. ## physics

A force is applied to a 2.6 kg mass and produces 2.7 m/s^2 acceleration. What acceleration would be produced by the same force applied to 14.9 kg mass? Answer in units of m/s^2 Here is my work, but i wanted to make sure if it was right or not:

asked by alexa on July 2, 2011
72. ## Math

An automobile assembly runs for 9 3/4 hours each day. Workers work 3/4 hours shifts. How many shifts are in each day? i put 9 3/4 divided by 3/4. But that's a decimal then i tried 3/4 divided by 3/4 but thats worse. Help me please.

asked by JadaBrooks on November 21, 2016
73. ## Physics

A force of 297.0 N is used to push a 165 kg mass 30.0 m horizontally in 3.00 s. (a) Calculate the work done on the mass. Enter a number.1 kJ (b) Calculate the power developed. Enter a number.2 kW

asked by Manny Aragon on December 9, 2009
74. ## maths

there are 12 sweets in a bag. 7 of the sweets are strawberry flavou. 5 of the sweets are lime flavour. harriet takes 2 sweets at random work out the probability that she takes at least one strawberry sweet.

asked by charlie on January 14, 2016
75. ## Math,algebra

ann is 20 years older than her daughter faye. three years from now she will be six times as old as her daughter. find their present ages. This is my work: ( i'm not sure if it's correct ) Now 3 yrs from now Ann A A+3 Faye 6A 6A+3 7a+21 = 6A+3 -6A -6A

asked by Ellofrmdaodersyde on February 15, 2016
76. ## English

Revise the following sentence to omit personal pronouns. I think it is important for you to evaluate information before it in a paper. It's important to evaluate information before including in your paper. Please check my work.

asked by Tim on February 4, 2017
77. ## College Algebra

A box contains \$7.80 in nickels, dimes, and quarters. There are 46 coins in all, and the sum of the numbers of nickels and dimes is 2 less than the number of quarters. How many coins of each kind are there? Here is my work so far: x + y + z = 46 x + y = z

asked by Gabbi on April 12, 2017
78. ## Geometry

I need to know how to work this problem: A 12-ft-by-15-ft rectangular swimming pool has a 3-ft-wide no-slip surface around it. What is the outer perimeter of the no-slip surface? 78 ft 78 ft2 198 ft 198 ft2

asked by Sandra on September 18, 2014
79. ## physics

a sailor pulls a boat along a dock by a rope held at an angle of 55.5 with the horizontal. How much work is done if the sailor exerts a force of 345 N on the rope and pulls the boat 23.8 m?

asked by tammy on December 1, 2011
80. ## math

Ms. Handler walks to work at an average speed of 5 kilometers per hour. If she increases her speed to 6 kilometers per hour, she will save 10 minutes. Find the distance she walks.

asked by Rob on October 12, 2015
81. ## Algebra/Time

The officejet printer can copy Lisa's dissertation in 22 min. The laserjet printer can copy the same document in 18 min. If the two machines work together, how long would they take to print the document?

asked by Kelly on October 25, 2011
82. ## Geometry

The area of a rectangle is 2160 square units and the diagonal is 78 units long. What are the length and width of the rectangle? I know the width and length are 30 and 72, but I am having trouble with the actual work.

asked by Lib on November 17, 2015
83. ## physics

A 62.0-kg baseball player begins sliding 3.40 m from third base w/ speed of 4.35 m/s. If the player comes to rest at third base (a) how much work was done on the player by friction? (b) what was the coefficient of kinetic friction between the player and

asked by Tina on April 10, 2008
84. ## help C program

I keep getting an error that says "no new endline at the end of file" but i pressed enter and it still won't work. i am compiling with gcc are there anything else i should look at? I'm also compiling with other files together. and All the files have a new

asked by apoorva on May 10, 2008
85. ## Algebra II

The Officejet printer can print a dissertation in 10 minutes. It takes the Deskjet printer 16 min to copy the same document. If the two machines work together, how many minutes will it take to copy the document?

asked by Kristi on March 11, 2010
86. ## engineering science

A horizontal force of 230B is required to pull a trolley 39 m, at a constant speed across a horizontal surface in 40 sec.1 the work done 2. The speed of the trolley. 3. Power required

asked by busy nhlapo on June 23, 2016
87. ## math

Dan had to complete the remaining 1/3 of his science project this week. On Monday, he completed 4/5 of the work he had left to do. What part of the entire project did Dan complete on Monday?

asked by Maria on November 10, 2011
88. ## operating system

please tell me if i have solved these correctly question: Consider a paging system with the page table stored in memory. 1)If a memory reference takes 50 nanoseconds, how long does a paged memory reference take? answer=2x50=100ns 2). If we add TABs, and 75

asked by joni on July 9, 2019
89. ## physics

A series of two 2.0 kg blocks are attached together through string B.Two of the blocks weigh each 2.0 kg and are now being use for a new experiment. The blocks are being pulled upwards by another string A with a force of 25 N. What is the acceleration of

asked by Anonymous on January 24, 2015
90. ## physics

A series of two 2.0 kg blocks are attached together through string B.Two of the blocks weigh each 2.0 kg and are now being use for a new experiment. The blocks are being pulled upwards by another string A with a force of 25 N. What is the acceleration of

asked by Anonymous on January 24, 2015
91. ## Pre-Calc Helppp!!!

Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that B1 is smaller than B2.) a = 39, c = 40, angle A

asked by John on March 31, 2012
92. ## ALGEBRA

Determine the down payment and the amount to be financed for each home described below.(a) \$460,460; 10% down The amount to be financed is \$ The down payment is \$ (b) \$730,000; 20% down The amount to be financed is \$ The down payment is \$ I need help with

asked by MONICA on November 25, 2011
93. ## Chem

HCl is slowly added to a solution that is .250 M in Pb^2+ and .00150 M in Ag+. Which precipitate forms first, PbCl2 or AGCl? At what Cl- ion concentration will the precipitate first appear? Ksp for PbCl2= 1.6*10^-5, Ksp for AgCl= 1.7*10^-10 Seriously don't

asked by TS on May 9, 2016
94. ## Economics

Janice is producing a new product at marginal cost of £1, and by law she has to sell it for £2. She has to decide how much to produce before she learns the demand. All she knows is that demand will be 20 or 50, with equal probability. If she is just a

asked by Susan on December 5, 2009
95. ## Chemistry Honors

In a science lab, acids and bases are often stored in high concentration "stock" bottles and then diluted as needed. If 100 mL of a 12 M solution of HCl is diluted to a final volume of 500 mL, what would be the final concentration of the diluted HCl?

asked by Amber M. on June 2, 2018
96. ## Chemistry

A solution of transferrin exhibits an absorbance of 0.463 at 470 nm in a 1.000-cm cell. Calculate the concentration of transferrin in mg/mL and the concentration of bound iron in μg/mL. At wavelength 428(nm), molar absorptivity of transferrin is 3540, at

asked by Anonymous on December 14, 2011
97. ## Comprehensive secondary school

Determine the mass of copper(ii)trioxonitrate(v) that will be formed when 15grams of copper is added to excess dilute trioxonitrate(v).{cu=63.5,N=14,O=16} solution cu(No3)2=Cu N2 O6 =63.5+14x2+16x6 =63.5+28+96 =187.5 Number of mole=mass/molar mass

asked by Pearl on November 14, 2015
98. ## Chemistry

Hydrogen gas dissolves in palladium with the hydrogen molecules going into the spaces between the metal ions. Determine the molarity, molality, and percent by mass of the H2:Pd solution (d=10.8g/cm)containing 0.94g hydrogen gas dissolved in 215 grams of

asked by James on February 17, 2012
99. ## chemistry- titration

Once you have calculated your Ka value, use the data to find the concentration of the unknown acids. Vol. of acid solution=25mL concentration of NaOH used = 1M Buffer (pH) = 8.35 at 11.5mL 1/2 11.5=5.75mL which is a pH of 3.58 I did pH=pKa + log(acid/base)

asked by Amber on May 27, 2015
100. ## chemistry

Okay so the question is: what would be the molarity of a saturated aqueous solution of NaI prepared at 25 C, assuming that the added NaI does not add significantly to the volume of the water? My question is, I got confused on what formula I use to for the

asked by Unknown on June 10, 2015