# 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

91,330 questions, page 588

Global Reader is a 5 year old E-company that grew from \$1 million in sales in the second year to \$8 million in sales. They have created the industry’s first portable book reader that provides any book in four major languages. They have manufacturing

asked by tee on April 20, 2010

You are currently an associate at an advertising agency where you have worked for two years. You are pursuing a promotion to the position of advertising executive. While you have expected to put in extra hours and some added responsibility as part of

asked by rose- on May 2, 2008
3. ## Physics

Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 41 km away, 24° north of west, and the second team as 33 km away, 37° east of north. When the

asked by Stacia on January 24, 2013
4. ## physics

Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 37 km away, 24° north of west, and the second team as 34 km away, 38° east of north. When the

asked by Anonymous on September 7, 2013
5. ## physics

Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 42 km away, 21° north of west, and the second team as 29 km away, 37° east of north. When the

asked by Anonymous on September 10, 2013
6. ## physics

Two geological field teams are working in a remote area. A global positioning system (GPS) tracker at their base camp shows the location of the first team as 43 km away, 23° north of west, and the second team as 29 km away, 33° east of north. When the

asked by S on January 15, 2015

"The Antartic is the vast source of cold on our planet, just as the sun is the source of our heat, and it exerts tremendous control on our climate,"[Jacques] Cousteau tole the camera. "The cold ocean water around Antartica flows north to mix with warmer

asked by Ayla on March 27, 2008
8. ## it 210 computer programming

I need to generate an object oriented design for a system that keeps track of a DVD and CD collection. Identify each of the classes, associated data, and operations of the classes. Create the pseudo code for each of the classes and draw a GUI that will

asked by mary on December 6, 2009
9. ## Geography

Which statements describe the geographic theme of regions? Select all that apply. Different types of regions have little or no effect upon each other. Climate regions are defined by their average temperature and their political system. Physical regions can

asked by sony147 on September 19, 2013
10. ## English

I need help understanding the directions for this essay response in 9th grade English B Unit 3. Its worth ten points and I really want to score all ten!! I need to get this done right now. The questions is... 20.) Identify one of the darker actions

asked by Peach on May 20, 2015
11. ## Physics difficult... chris help again plz.

A heat engine has the three step cycle shown above. Starting from point A, 1 L (liter) of ideal gas expands in the isobaric (constant pressure) process A to B at P = 2 atm. B to C is isovolumetric process at V = 5 L, and C to A is an isothermal (constant

asked by Jason on May 8, 2010
12. ## Physics

A heat engine has the three step cycle shown above. Starting from point A, 1 L (liter) of ideal gas expands in the isobaric (constant pressure) process A to B at P = 2 atm. B to C is isovolumetric process at V = 5 L, and C to A is an isothermal (constant

asked by Jason on May 8, 2010
13. ## Physics

The period of motion of an object-spring system is T = 0.474 s when an object of mass m = 296 g is attached to the spring. (a) Find the frequency of motion in hertz. _______Hz (b) Find the force constant of the spring. _______N/m (c) If the total energy of

asked by Ame on December 6, 2012
14. ## Calculus help, very confused!!

A fundamental problem in crystallography is the determination of the packing fraction of a crystal lattice, which is the fraction of space occupied by the atoms in the lattice, assuming that the atoms are hard spheres. When the lattice contains exactly two

asked by Sam Johnston on February 29, 2016
15. ## Microbiology

Name a pathogenic bacterium (provide genus and species names) and the disease caused in humans that is typically spread by healthcare professionals in a healthcare facility due to improper techniques. In your explanation, provide an example how this

asked by Rose on September 26, 2014
16. ## Physics

Resonance in a system, such as a string fixed at both ends, occurs when a) it is oscillating in simpler harmonic motion b) its frequency is the same as the frequency of an external source c) its frequency is greater than the frequency of an external source

asked by Satej on December 6, 2009
17. ## Pre Calculus

using the factor theorem to show that x-c is a factor of P(X) for the given values of c, and factor 1. P(x)=x3-5x^2+8x-4; c=1

asked by Josh on October 29, 2011
18. ## math

show that sin ((pi)/(3))+((pi)/(6)) = sin[pi/3] + sin[pi/6] is NOT a true statement.

asked by Steve on March 31, 2013
19. ## MATH

If angle a =22.17 and angle b = 136.5 what is the measure of angle c? Can someone show me how to go about this

asked by Tyler on January 12, 2011
20. ## maths

draw the counters and show the groups a, how many counters would 1/4 of 12 counters be.

asked by nyeleti on April 15, 2019
21. ## college

With a mean of 72, and SD of 10 of High temprature: Temprature of 93 is how many SD above mean? Temprature of 54 is how many SD below mean? Show your calculations.

asked by jenny on July 5, 2010
22. ## math

2 ships sail from the same por, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours? could you show the how you set this problem up?

asked by Greg on October 19, 2010
23. ## Physics

Research on the physics of living systems. Give two examples to show how physics helps to understand the concepts of evolution, biological systems of living organisms.

24. ## Integration?

Use the derivatives of sinx and cosx to show that d/dx [tanx] = sec^2 and that d/dx [secx]=sec^2xsinx. Hence evaluate ∫ [1 + sinx]/[cos^2x] dx limit from 0 to pi I know the first part of the question, i'm not sure how i should do the second part "hence

asked by Arisa on June 19, 2009
25. ## Math

So far on its tour, a band sold out 45 shows and did not sell out the other 10 shows. What is the experimental probability that the band's next show will be sold out? Simplify your answer and write it as a fraction or whole number.

asked by Anonymous on March 8, 2016
26. ## Problem Solving: Draw Picture

Maggie is planting bushes every 1.5 feet along the side of a fence. The fence is 22.5 feet long. Explain how Maggie can draw a picture to show where each bush is planted.

asked by Kurt on November 25, 2014
27. ## Word Problem

A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it.

asked by Marilyn on September 28, 2008
28. ## math

a board is 17ft long and a hole is 1 ft futher from 1 end than it is from the other. How far is the hole from each end of the board shortest distance? Choices 6,8,10 Ms Sue posted 8 how did you get that answer? can you show me?

asked by bobby on June 13, 2012
29. ## Math

Milos bring 12 hamburgers to the barbecue. He puts cheese on 4 hamburgers. Draw to show the fraction. Write two equivalent fractions. Explain why they are equivalent fractions

asked by Eunji on April 25, 2017
30. ## math

Ms Billets used 1 yard of ribbon to make a dress for a doll. Write two equivalant fractions to show what fraction of ribbon that she bought she used for the dress. she bought 4 yards.

asked by Esther on February 17, 2011
31. ## Algebra

The perimeter of this rectangular portion needs to be 14 yards and the diagonal is 5 yards. Can you help Mike determine the length and width of this new portion? Mike requested that you show him how you arrive at the answers.

asked by JT on July 11, 2010

The theater group performed on Friday and Saturday night. Three hundred and twenty four attended on Friday, and 33 more attended on Saturday. How many people saw the show? I need to write an equation for this.

asked by jakob on September 19, 2010
33. ## Physics

Research on the physics of living systems.Give two examples to show how physics helps to understand the concepts of evolution, biological systems of living organisms.

asked by Karan on July 15, 2016
34. ## Statistics

A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1- hour flight is .02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the other will

asked by Jazmyne on March 23, 2009
35. ## Math

What is the square of the least two-digit prime number? What is the least two-digit prime number? 11 how do i show that the polygons are similar by checking that corresponding angles have equal measures and corresponding sides are proportional? 10 11 So

asked by Christian on January 11, 2007
36. ## counting outcomes

in volleyball, you can volley, set, or spike. how many ways can your team make two plays? use tree diagram. thanks. a tree diagram would show 9 possible outcomes how to you do and count outcomes

asked by dillon on April 9, 2007
37. ## Statistics

A coin was flipped 60 times and came up heads 38 times. (a)at the .10 level of significance, is the coin biased towards heads? Show your decision rule and calculations. (b) calculate a p-value and interpret it.

asked by Gayla on June 8, 2008
38. ## Math

a cylinder of wooden block has base radius 'r' cm height 'h' cm and a total surface area of 32pi cm^2 1)show that r^2+hr=16 2)given that its height is 4cm more than its base radius, find the value of 'r' and of 'h'

asked by kaelyn on January 9, 2016
39. ## math

Attendance records at a school show the number of days each student was absent during the year. The days absent for each student were as follows: 8 2 4 3 2 7 6 0 9 3 3 4 2 4 6 Create a dot plot for this data

asked by KiKi on April 11, 2010
40. ## statistics

Survey on concern for criminal in a survey 3 of 4 students said the court show too much concern for criminals find the probability that 3 out of 7 randomly selected students will agree with this statement

asked by Anonymous on April 1, 2014
41. ## Calculus

limit of (x*(y-1)^2*cosx)/(x^2+2(y-1)^2) as (x,y)->(0,1). By evaluating along different paths this limit often goes to 0. This does not necessarily imply that it exists. So how would i prove that it exists. Can someone please show me how i can prove using

asked by Jim on April 10, 2016
42. ## Math

Ricky wrote the following to show that his sister's age is 6 yrs. less than 3 times his age. Explain what he did wrong. Give the correct expression Let a stand for my age My sister's age a/3-6

asked by Lisa on November 12, 2012
43. ## Chemistry

Give an example of one polyatomic cation and one polyatomic anion. Show how these ions combine to make a compound. My thinking: Cation-ClO Anion-K How they form, I don't know?

asked by Isaac on July 6, 2015
44. ## evaluate expression

ricky wrote the following to show that his sisters age is 6years less than 3times his age. Explain what he did wrong . Give the correct expression. Let (a)stand for my age ,my sisters age: a/3-6

asked by Sededra on March 30, 2011
45. ## Probability

Statistics show that about 5% of all males are colorblind. Suppose that 20 males are selected at random. What is the probability that at least 4 of the 20 people are colorblind? My answer: I got 1-0.984 The answer key says 0.00257394

asked by Anonymous on February 28, 2014
46. ## Calculus

Show that limit as n approaches infinity of (1+x/n)^n=e^x for any x>0... Should i use the formula e= lim as x->0 (1+x)^(1/x) or e= lim as x->infinity (1+1/n)^n Am i able to substitute in x/n for x? and then say that e lim x ->0 (1+x/n)^(1/(x/n)) and then

asked by Frederick E. on November 8, 2011
47. ## english, possessive nouns

Directions: Wrie each sentence. Change the underlined phrase to show possession. The honesty of children is refreshing. The honesty of children is the underline part of the phrase.

asked by robin on October 23, 2012
48. ## Math

On an outing to the theatre the tickets are £8.50 each for every ten tickets bought you get two extra free tickets. How much would it cost if you wished 12 tickets? . A party of 26 people go to the show. How much will it cost altogether?

asked by NH on January 11, 2016
49. ## Statistics

A coin was flipped 60 times and came up heads 38 times. (a) At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations. (b) Calculate a p-value and interpret it

asked by Robert on June 6, 2010
50. ## Maths

Humans breathe about 15 breaths in a minute.The average breath at rest contains 0.76 liter of air.About how many liters of air will you breathe while at rest for 25 minutes? Please,show working.

asked by Anonymous 1 on January 21, 2011
51. ## English

Nick finds our that he and Gatsby knew each other from? college the war the stock market college? Gatsby's books in his library are for show. True or False? False?

asked by Fran on January 8, 2016
52. ## Physics

You design an engine that takes in 1.5 x 10^4 J of heat at 650 K in each cycle and rejects heat at a temperature of 350 K. The engine completes 240 cycles in 1 minute. What is the theoretical maximum power output of your engine? can you please also show

asked by Brianna on July 18, 2010
53. ## Maths - Parametric Equations

A circle is defined by the parametric equations x = 2cos(2t) and y = 2sin(2t) for t is all real numbers. (a) Find the coordinates of the point P on the circle when t = (4*pi)/3. (b) Find the equation of the tangent to the circle at P. Can you please show

asked by Jichu on December 27, 2016
54. ## Physics

A railroad flatcar is loaded with crates. The coefficient of static friction between the crates and the floor is 0.27. If the train is moving at 59.7 km/hr, in how short a distance can the train be stopped with a constant acceleration without causing the

asked by Lindsay on December 5, 2007
55. ## plz i need steve can u help dr bob222 help as well

A crystal is grown by evaporating A and 8 type atoms, and then letting them condense to form the crystal. If, because of the forces involved, on A atom is twice as likely to stick to the crystal OS a B atom, what is the probability that the final crysta

asked by mayerimi on April 12, 2017
56. ## physics/chemistry:sir steve drbob222 steve steve

A crystal is grown by evaporating A and 8 type atoms, and then letting them condense to form the crystal. If, because of the forces involved, on A atom is twice as likely to stick to the crystal OS a B atom, what is the probability that the final crysta

asked by weyeremi on April 12, 2017
57. ## CHEM organic chem

i am really confused! i am doing the production of ethene from fractional distillation and i understand the whole concept of it what i don't get is how i can write a balanced eqn to show how ethene can be produced from C14H30 (tetradecane?!) i did C14H30

asked by AllyKat on November 13, 2007
58. ## CHEM organic chem

i am really confused! i am doing the production of ethene from fractional distillation and i understand the whole concept of it what i don't get is how i can write a balanced eqn to show how ethene can be produced from C14H30 (tetradecane?!) i did C14H30

asked by AllyKat on November 13, 2007
59. ## Physics

A block of mass 77.0kg is placed at the top of a frictionless plane that is inclined 46 degrees to the horizontal. The height of the plane is 23.0 meters. Find the speed of the block at the bottom of the plane. Please show all your steps, don't just

asked by Jen on June 11, 2012
60. ## Chemistry

Calculate and compare the mass of the reactants with the mass of the products for each equation. a)2KClO3 (s) ==> 2KCl(s) + 3O2 (g) b)4NH3(g) + 6NO(g) ==> 5N2(g) + 6H2O(g) c)4K(s) + O2(g) ==> 2K2O(s) Show that each balanced equation obeys the law of

asked by Ralph on April 5, 2010
61. ## teacher aide

I need help! What information is included in the instructional guide that accompanies most audiovisual materials? A How to operate the projection equipment to show the materials B How to duplicate the audiovisual materials C A summary of description of the

asked by Rosie on April 26, 2011
62. ## Finance

Temple Corp. is considering a new project \vhose data are shown below. 'rhe equipment that would be used has a 3-year tax life, would be depreciated by the straight-line method over its 3-year life, and would have a zero salvage value. No new working

asked by Anonymous on April 26, 2011
63. ## physics

Consider a pulse of laser light aimed at the Moon that bounces back to Earth. The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56 s.

asked by Jamie P on November 8, 2012
64. ## Physics

Please show steps and thank you! An astronaut of mass 70 kg carries an empty oxygen tank of mass 14 kg. He throws the tank away from himself with a speed of 3 m/s. With what velocity does the astronaut start to move through space?

asked by Anon on January 14, 2012
65. ## math

Ariel wants to choose 5 players for her basketball team. There are 7 players to choose from. How many different teams can Ariel make? A) 21 B) 35 C) 42 D) 56 please help me! And show how you got the answer! I thought you were supposed to go 7*6*5*4*3 but

asked by Anonymous on June 6, 2015
66. ## chemistry

How do I prepare 100mL of 10g/L HCl from concentrated HCl(37%HCl, density 1.19g/mL) Is it 2.28mL of conc HCl dilute to 100mL with water? Please show the calculation steps.

asked by haji on April 7, 2016
67. ## math

could someone show me how to write this or set up this equation?2 ships sail from the same port, one sails dew east at 15 mph and the second sailed dew south at 20 mph, how far apart are the ships after 3 hours?

asked by Greg on October 19, 2010
68. ## math

the difference between high and low tides is 19 feet on monday and x feet on tuesday. write an expression to show the average rise and fall of the tide for monday and tuesday

asked by jen on August 23, 2009

A person on a moving sidewalk travels 21 feet in 7 seconds. the moving sidewalk has a length of 180 feet. How long will it take to move from one end to the other? Can someone please show me how to get the correct answer?

asked by Stephon on November 3, 2014
70. ## math

still having trouble with 2T=____oz How many ounces are in a pound and how many pounds are in a ton? Show us HOW you used the procedure you have been shown. And tell us what you don't understand. We have done two for you but you need to learn how to do

asked by Brooke on November 30, 2006
71. ## statistics

determine the probability that a sample of 49 boxes will have a mean weight below 365 grams. past records show that the population mean is 368 grams and the population standard deviation is 7. the probability will be between.

asked by wanda on November 30, 2011
72. ## physics

Consider a pulse of laser light aimed at the Moon that bounces back to Earth. The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56 s

asked by Shawn on November 8, 2012
73. ## programming

what will be the c++ source code of finding the largest value among the N numbers? translate the algorithm: 1. the largest number is: 2. the smallest number is: 3. display all the numbers inputted: 4. show the final output.

asked by criss on January 1, 2013
74. ## math

Please help me simplify: 4sqrtx^12/24sqrtx^2 *Is this correct: 2sqrt4/12x The answer you get depends upon where you put the parentheses, and you don't show any. I don't see any way of coming up with your answer. 4 (sqrtx)^12/ 24 (sqrtx)^2 = (1/6) x^6/x =

asked by margie on January 11, 2007
75. ## Chemistry

Display the final answer in correct scientific notation and show correct number of significant figures in the final answer: 6.0223010000 x 10-24 x 2.222090001 x 10-30 I get this far and then get stuck: 13.3820948351123 x 10 -54

asked by Susan on February 22, 2012
76. ## Chemistry

If 0.200mol of nitrogen gas and 0.200mol of oxygen gas react, what is the limiting reactant? N2(g)+O2(g)→2NO(g) How many moles of NO are produced according to the equation? Please show how to perform this equation with the answer please.

asked by Tonya on October 25, 2014
77. ## Algebra II

Write an equation for the ellipse with end points of the major axis at (7,1) and (-7,1) and end points of the minor axis at (0,5) and (0,-3). I do not know how to start this. There are no examples in my book that I can study. Could you show me how to set

asked by Lucy on March 1, 2008
78. ## statistics

A certain airplane has two independent alternators to provide electrical power. The probability that a given alternator will fail on a 1-hour fight is .02. What is the probability that (a) both will fail? (b) Neither will fail? (c) One or the other will

asked by steven on October 9, 2009
79. ## Math

I take out a loan for \$10,000.00 and the interest rate is 6.3% APR. If I pay this loan back at \$300.00 per month, how much interest will I be charged on top of this per month for the first 3 months? Please show the equation used.

asked by Dinny on September 5, 2014
80. ## Chemistry

How do I prepare 100mL of 10g/L HCl from concentrated HCl(37%HCl, density 1.19g/mL) Is it 2.28mL of conc HCl dilute to 100mL with water? Please show the calculation steps.

asked by annie on February 16, 2012
81. ## math

For the pair of numbers (-1/5),(-1/2) My teacher wants us to find the quadratic equation with integral coefficients that has these numbers as solutions. I am not sure if I have the right equation for this. Could someone let me know if I am right or wrong

asked by kim on September 3, 2010
82. ## chemistry

a 51.6 litre sample of a pure allotrope of oxygen has a mass of 100.0 grams. (25 degrees celsius and 100 kPa) Show, by calculation, which allotrope of oxygen is present.

asked by Anonymous on July 17, 2016
83. ## physics

Consider a pulse of laser light aimed at the Moon that bounces back to Earth. The distance between Earth and the Moon is 3.84 * 108 m. Show that the round-trip time for the light is 2.56 s.

asked by Peg on May 31, 2014
84. ## Calculus, Riemann

IF ANYONE CAN PLEAAAASEEEE HELP ME Use the Riemann sum definition of the definite integral to show that b 3 ¡ò x©÷dx - b©ø -a©ø a Here, for simplicity, we assume b > a > 0. Be sure to clearly specify your mesh/grid xi, , and your choice of sample

asked by Ellen D on May 7, 2014
85. ## Physict

This question is similar to some on driver's-license exams: A car moving at 50 km/h skids 15 m with locked brakes. Show that with locked brakes at 150 km/h the car will skid 135 m.

asked by Jaime on April 8, 2014
86. ## algebra

srry if i am asking to many questions today this is my last thing plse help me how do you do problems like this find the slop and y intercept of the equation 3 y=x-5/4 5/4 is a fraction how do you do problems like that plse expalin and show me step by step

asked by Amy on November 6, 2008
87. ## Chemistry 111

a) Write Bronsted acid-base equilibrium equations for the following: b) Show the acid-base conjugated species, labeling all species (1) HSO4- + C2O4-2 (2) HPO4-2 + NH4+

asked by Sean on April 2, 2013
88. ## Chemistry

The specific heat of water is 4.184J/gc and that of aluminum is 0.897J/gc which substance will show a larger increase in temperature upon the addition of 100J of heat to 100g the aluminum or the water

asked by Kishwar on September 19, 2018
89. ## physical

Consider a pulse of laser light aimed at the moon that bounces back to earth. The distance between Earth and Moon is 3.8 x 10 (small eight above) m. Show that the round-trip time for the light is 2.5 s.

asked by Julia on February 12, 2012
90. ## spanish

"Perdone Ud. ¿Podría _____ dónde queda un quiosco?" "Sí. Hay uno en esta calle, a una cuadra de aquí." a. indicarme b. seguirme c. perdonarme d. comprarme "Pardon me. Could you _____ where a news stand is located? "Yes. There is one on that street, at

asked by y912f on June 2, 2009
91. ## high school

Use at least five adverbs and five adjectives to write a 150-minimum to 300-maximum word review of a movie, sporting event, musical performance, or television show. · Bold each adverb. · Underline each adjective. · Compare the event to one or more

asked by Anonymous on July 25, 2010
92. ## Senior English

I have to create a skit for an English presentation on the underground railroad (prior to reading Beloved by Toni Morrison) and am looking for creative ideas on delivering our information. In the past we have done numerous skits and other groups have

asked by Anonymous on January 4, 2010
93. ## Philosophy

According to Rachels, which of the following supports the truth of determinism? Select one: a. Studies that show that social conditions influence behavior b. Discovery of genetics c. Experiments in psychology such as the Milgram and Stanford Prison

asked by TayB on March 6, 2015
94. ## philosophy

I am to identify a film, television show, or other form of media art that involves cahracters/narrators reflecting upon the nature of identity and self. I want to write about Sex and the City. i was wondering do you think this would be a good topic. The

asked by angela on April 4, 2013
95. ## Psychology

The "face module," located in the right temporal lobe of the brain, explains why: the cells fire when a dog lover looks at pictures of show dogs. infants are not afraid to go to strangers. ganglion cells in this area respond to simple features. we need

asked by Chloe on March 19, 2011
96. ## Physics- impuse and force

A car is moving to the right with a speed of 20 m/s. A large SUV is moving to the left at a speed of 20 m/s. The SUV has a mass three times that of the small car. They have an totally inelastic head-on collision in an intersection. There are two passengers

asked by Casey on July 5, 2011
97. ## Chem Help

For the reaction, XBr2(g) X(g) + Br2(g), if a container is charged to an initial concentration, [XBr2] = 2.00 mol/L and the system allowed to react and come to equilibrium, if Kc = 4.0 x 10-8, what is the concentration of X(g) at equilibrium? This is what

asked by Steve on December 13, 2017
98. ## cultural diversity

prejudicial behaviors by young children particularly in the 3 to 5 year age group are not rooted in acognitive inability to fit new information and experiences into an existing belief system b.observation and emulation of pro-social attitudes and behaviors

asked by Anonymous on February 15, 2011
99. ## Social Studies

1. In Athens the system of government became a direct democracy, in which the people participated directly in government. In the Roman republic, citizens participated in government (1 point) in an identical way. through meetings held in the marketplace. by