# 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

92,096 questions, page 465
1. ## English

the Oprah Winfrey Show -------------------- Q: How do you pronounce "Oprah"? 1. /oupra/ 2. /opra/ 3. /opruh/

asked by rfvv on October 15, 2014
2. ## math

2 cubes whose faces are numbered 1 through 6 are tossed. what is the probability that both cubes show the same number? 1 36 2 6/36 3 1/36 4 5/6

asked by Anonymous on December 15, 2008
3. ## Algebra

Simplify the complex rational expression 3/(x+5)+ 6/(x+3) ÷ (3x+13)/(x^2+8x+15) (please show steps i already know the answer i need to know the steps)

asked by Mystery on July 8, 2010
4. ## Life Orientation

Discuss Two examples from the media to show how the media supports Democratic society?

asked by Stabile on May 12, 2016
5. ## AP Calculus

Find the antiderivatives. 1) çãx (x+1) dx 2) ç(x^3-4)/ (x^2) dx 3) ç(3sinx) dx 4) ç(5secxtanx) dx 5) ç(1/x) dx 6) ç(e^x - 2x) dx 7) ç(3)/((1-x^2)^1/2) dx I picked the antiderivatives i did not know how to do. Please show me how to

asked by some kid on January 22, 2009
6. ## Conceptual Physical Science

A nurse counts 72 heartbeats in 1 min. Show that the period and frequency of the heartbeats are 0.83 and 1.2 Hz, respectively.

asked by Laticia on July 5, 2010
7. ## Algebra/Can someone show how it is done

Tell what the output value is for the function machine for the given values. x down to x_____x^2 + _____X^2 +1 down to x^2 +1 It looks like a machine. A)5 B)9 C)-7 D)1/2 E)t Can you show how it is to be done

asked by Mary Ann on June 7, 2014
8. ## math

Stacy multiplied 5x9 and said the answer was 44. What two patterns could you use to show that the answer is not correct?

asked by Joe on February 13, 2011
9. ## Math

The average giraffe is 18 feet tall. What expression show the height of the giraffe?

asked by Shion on September 19, 2012
10. ## maths sir damon reiny or steve help!steve see

Given u(x, y) = x^2 + 2y where x (r, t) = r sin(t) and y(r,t) = sin^2(t), determine the value of ∂u / ∂r and ∂u / ∂t using the chain rule. Plz show step

asked by payuto on March 15, 2017
11. ## Math

Describe two ways to show the expression 5×3/4. My answer is. 15/4. 5×3/4. 5/1×3/4. I don't know how to write expression.

asked by Deborah on July 27, 2016
12. ## physics

how do i find the net force 30-N and a force 20 to show forces opposite and both in the same diection?

asked by bobby h on October 12, 2012

This is a little difficult... Graph the Function y=3 less than the absolute value of x+2 Obviously you cannot show me this on a graph, but I just need help with solving the equation... Thanks!!!

asked by Jackie on November 11, 2015
14. ## algebra

y=(v/u)x+(g)/(2(u^2))*x^2 where y is the object's vertical distance (in feet) above from where it was thrown x is the object's horizontal distance (in feet) away from where it was thrown and u is the objects' initial horizontal velocity v is the object's

asked by Geoff on July 19, 2013
15. ## nutrition

Created a nutritional care plan for the client. Included an evaluation of nutritional risk, listing of interventions, and expected outcomes. Listed the goals of medical nutrition therapy for the patient and suggested an appropriate diet. Identified whether

asked by lulu on May 14, 2015
16. ## Science

HELP! I need to do a science project this year and have no clue what to do. The project has to follow the scientific method. Please give me some good ideas! I don't care what subject, as long as they're scientific. Thanks

asked by Margaret on August 21, 2006
17. ## Programming

Write a java method that will take two sorted stacks A and B (min on top), and return one stack D that is sorted (min on top). You are allowed to use only the stack operations such as pop, push, isEmpty and peek. Example: suppose A={(top)1,4,7,9} and

I need to write a paragraph on Identifying the demographics and characteristics of my customer( or consumer). What the customer needs will my product attempt to meet? My product or business is a shoe company that sells for all ages and all shoes sizes.

asked by Tess on November 13, 2006
19. ## statistics

In prior investigations made by a local Gas and Electric Company, 65% of homeowners prefer to heat with gas instead of electricity. In a recent study of 200 homeowners 60% prefer heating with gas. In a two tailed test at a .05 level of significance can we

asked by Nikki on April 26, 2011

Alice works part-time after school. On Monday, Alice records that she worked three and two-sixth hours. On Tuesday, Alice records that she worked one and seventy-five hundredths hours. On Wednesday, Alice records that she worked two and two-thirds hours.

asked by Lemi on December 7, 2015

Alice works part-time after school. On Monday, Alice records that she worked three and two-sixth hours. On Tuesday, Alice records that she worked one and seventy-five hundredths hours. On Wednesday, Alice records that she worked two and two-thirds hours.

asked by Lemi on December 8, 2015
22. ## Big MATH Help needed

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be

asked by Rosie on April 8, 2013
23. ## Calculus

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be

asked by Rosie on April 11, 2013

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be

asked by Marto on April 2, 2013
25. ## Math

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be

asked by Chris on April 1, 2013

An object at rest begins moving horizontally on the x-axis, starting at position x(t) = 0 feet at time t = 0 seconds.Suppose, after exactly 2 seconds we measure the position of the object to be 3 feet to the right of the origin AND measure the object to be

asked by Mike on April 3, 2013
27. ## Chemistry

I was doing a lab experiment on the reaction of copper(II) sulphate and aluminum: 1) I measured 2.02g of copper(II) sulphate pentahydrate 2) I dissolved the copper(II) sulphate pentahydrate in 10mL of distilled water 3) I added 2.0mL of concentrated HCl to

asked by Patrick on September 26, 2015
28. ## Chemistry

If very small concentrations of NaCl and AgNO3 are mixed, no precipitate forms. However, if large concentrations are mixed, a white precipitate forms. Can someone tell me a method for testing the hypothesis that "insoluble" salts would dissolve to some

asked by Sarah on February 12, 2012
29. ## Chemistry

If very small concentrations of NaCl and AgNO3 are mixed, no precipitate forms. However, if large concentrations are mixed, a white precipitate forms. Can someone tell me a method for testing the hypothesis that "insoluble" salts would dissolve to some

asked by Sarah on February 26, 2012
30. ## Mathematics

A company manufactures two products X and Y by means of two processes A and B. The maximum capacity of process A is 1750 hours and of process B 4000 hours. Each unit of product X requires 3 hours in A and 2 hours in B, while each unit of product Y requires

asked by Anonymous on August 19, 2015
31. ## Physical Science

two people pull on separate ropes attached to a cart. the angle between the ropes is 90 degrees and one person pulls with a force of 200 newtons while the other pulls with a fore of 400 newtons. find the resultant force and direction using the

asked by Janet on March 24, 2010
32. ## chemistry

Write the compound formulas for each of the following pairs and the name of the compound formed when the elements or radicals combine. Mg+2 + OH-1 K+1 + PO4-3 Cu+2 + S-2 N+5 + O-2 Compounds have zero charge. Therefore, for magnesium hydroxide, the first

asked by jessica on March 19, 2007
33. ## English

1. If you are driving your car now, come here immediately and give me a ride home. ( Is this one correct? In this sentence, the driver is in the middle of driving his car. Is that right?) 2. If you are driving your car after work, give me a ride home. ( In

asked by rfvv on May 17, 2016
34. ## Physics

Earth's mean radius and mass are 6,371 km and 5.97 x 1024 kg, respectively. Show that the acceleration of gravity at the surface of Earth is 9.80 m/s2.

asked by vv on September 17, 2013
35. ## The Writer by Richard Wilbur fast question

I still need help with these extended metaphors. I know that the house is being compared to the ship but I can't figure out what quote I should use to show that it's an extended metaphor.

asked by Cindy on November 15, 2009
36. ## English

show your understanding of literary and non-literary prose by citing examples and discussing them. 450 words

asked by Ansila on March 22, 2012
37. ## chemistry

Which noble gas would be expected to show the largest deviations from ideal gas behaviors, He, Ne, Ar, Kr, or Xe? Would it be He? I'm not sure how one would determine this.

asked by Anonymous on January 3, 2010
38. ## Algebra

asked by Student on April 9, 2018
39. ## math

Mr. Steve, thank you very much to answer my question on Sunday, 23 August at 1:44 pm. But please, show me how to get : Number 1 : 1. D = -1 Dx = -2 Dy = -3 Number 2 : 2. D = -5 Dx = -14 Dy = -3 Because the steps to know that is important for me. Please...

asked by Iman on August 23, 2015
40. ## Precalculus

How can I type this equation in the graphing calculator? y=pi(25-x)^2 • 2x Note, the 2x is NOT multiplied by 2.. Show how I can type this in .. Parantheses and other notions ......

asked by Anonymous on May 29, 2014
41. ## Maths

Show if the following are logically equivalent I) P->Q and NQ ->Np II) N{P∆Q} AND {NP∆NQ} 2] Give A={7,8,4,5} B={X, Y, Z} I) What Type Of Mapping Is A TO B II) state the D{F} III) state the rang of R?

asked by Dogy dogy🐕 on May 22, 2019
42. ## Algebra

If you end a game of football with 78 yards. Your l;st 2 runs were -7 & -5. Show an expression of how many yard he had before those last 2 runs. My answer is 78 -5 -7

asked by Faye on August 23, 2014
43. ## Programming

Input the CP of a TV and rate of discount and calculate SP in Java programming Please show the programming computer expert!!

asked by Raghav on April 10, 2018

If a particle's motion is described as x = ut+1/2at^2, where x is position, t is time and u and a, are constants. Show that the acceleration of the particle is constant

asked by Praveen on August 5, 2010
45. ## Chemistry

calculate the molar hydroxide ion concentration of each of the following solutions given the pH 4.53. Answer should be for OH-. Please show me how to do this in step by step

asked by Anonymous on November 25, 2014
46. ## Math

This website show the graph just copy and paste Translate triangle ABC 3 units right and 2 units down. A.(-4,-2) B.(0,-2) C.(1,-1) D.(1,3)

asked by Kit-Kat on February 9, 2018
47. ## Math

Transform the graph of f(x)=3^x to sketch g(x)=3^−(x+1) −2. Show table of values and each transformation clearly to get full marks. (15,marks)?

asked by Piper on April 6, 2015
48. ## Math

can someone show me a step by step guide converting this please 2.483 X 10^-7 pm^4kg/s^2 to dam^3mg/day^2

asked by jake on February 2, 2010
49. ## Algebra

In a dog show, there will be a gold and a silver medal awarded. There are 4 finalists. In how many different ways can the 2 medals be awarded?

asked by Anonymous on August 3, 2017
50. ## English

How does Erik (the phantom) from The Phantom of the Opera show romance? i already mentioned about his relationship with Christine, but i need two more points.

asked by Gina on April 6, 2015
51. ## Math

A rectangle prism has a volume of 6.84m^3 and a hight of 1.2m. What is the area of the base of the prism. Please show all steps in doing v this. Please

asked by Cheyenne on May 1, 2018
52. ## senn high school

Please wite a paragraph (5sentences)to show you comprehend what analogies and idioms are.Use at least one analogy and one idiom in the paragraph?

asked by jacky on June 29, 2012
53. ## maths

AD is a median and P is the midpoint of AD of triangle ABC. BP and CP are joined show area (BPC)=area(ABD)

asked by Anonymous on January 3, 2013
54. ## algebra

find f(x) = –x3 + x2 + 2x + 7, find f(–3), f(0), and f(2) Wouldn't you just substitute the value of x (-3, or 0, or 2) into the equation and compute? Can you just show me how to do the first one....my brain is fried at this point

asked by Dori on August 9, 2007
55. ## help maths partail sum

find the partial sum and the limiting sum of the following infinite series 1/4+1/10+4/18.... show step got no ideal at all

asked by dam on May 5, 2016
56. ## Geometrical Formula Help

Hi! Can anyone please send me a link or show me how to find a formula that will find any point between two other points? Thank you, your help is greatly appreciated :)

asked by Lena on January 13, 2007
57. ## maths

show that the radius of right circular cylinder of maximum volume that can be inacribed in a sphere of radius 18cm is 8√6

asked by Anonymous on March 16, 2017
58. ## History

Federalists: supporters of the Constitution What would an example be for that? Do I have to make up any example to show what Federalists are or do I have to use in real life things that have happened

asked by M on October 29, 2014
59. ## Math

A rectangular prism has a volume of 7.875^3 and a hight of 3.5. What is the area of the base of the prism Show me the steps

asked by Dylan on May 1, 2018
60. ## Linear Alebra

Show that the transformation T:R^2->R^2 given T(x1,x2)=(3x1-5x2,x1+2x2) is linear by verifying that satisfies the definition of linear.

asked by Jason on August 13, 2010
61. ## English- A Raisin in the Sun

I'm stuck on these in A Raisin in the Sun: Why does Mama decide not to move? In what way does she show herself to be stronger than her children? I'm stuck, please help!

asked by Anonymous on September 1, 2007
62. ## Algebra 1

Could you please show me how to do this. Write an equation of the vertical and horizontal lines that pass through the given point (6,-6) y equals? x equals ?

asked by Elisa on September 29, 2009
63. ## Math

The curve y=x^3-3x^2-8x+4 has tangent L at point P (1,-8). Given that the Line M is parallel to L and is also a tangent to Q show that the shortest distance between L and M is 16 root 2 Thanks

asked by Jodis on May 12, 2018
64. ## Math

Show that the transformation T:R^2->R^2 given T(x1,x2)=(3x1-5x2,x1+2x2) is linear by verifying that satisfies the definition of linear.

asked by Jason on August 13, 2010
65. ## High School English

How did The Masque of the red death show evil? Ive read it over and over and cant seem to find evil no where in this story.

asked by Ana. on December 11, 2012
66. ## MATH

sub 789 for x -2.5x^2 +2825x-115,812.5 having troubble undeerstanding the process . could someone show me step by step..

asked by WINSTON on March 19, 2014
67. ## A Raisin in the Sun

In what way does Mama show herself to be stronger than her children? (Please check the following): Mama is willing to give up her dream for the good of the family.

asked by Anonymous on September 3, 2007
68. ## chemistry

Write balanced equations to show the thermal decomposition of calcium nitrate and sodium nitrate.

asked by Sabrine on July 26, 2017
69. ## Calculus

show that ((x − 1)/x) 1 Hint: try to apply the Mean Value Theorem to the functions f(x) = lnx and g(x) = xlnx. I'm having trouble applying the mean value theorem

asked by Po on November 14, 2016
70. ## Present Value simple interest

11% interest \$186.00 interest paid 140 days what was the orginal amount please show calcualtion

asked by Janine on February 18, 2011
71. ## Computer

whats the best topic for a slide show presentation that could capture so much attention of the teens ?? i just cant think of any topic ... thanks for your help in advance :)

asked by terry on September 16, 2015

need to draw floor plan of my room and home I have to use my map story to show me example how do I draw my desk ??

asked by Evan on February 26, 2011
73. ## Calculus Theorem! !!!????

i don't understand this, Show that if G(x) is an antiderivitive for f(X) and G(2)=-2 then G(4)=-7+((integral))top number 4 lower number 2 f(X)dx its so confusing.? HELP. Thanks!!

asked by Anonymous on March 23, 2010
74. ## Math

A watch loses 30 second hour. If the watch was set right on Sunday at 11:30 p.m. What day and time did it show after 10 hours?

asked by Elis on January 21, 2018
75. ## math

x=(-5.15-5.89i)+(30/(-5.15-5.89i)) i is the square root of (-1) the answer sholud equal 10.3 x=10.3 but could you show me how , i am having problem to figure it out. thank you.

asked by layth on September 20, 2010
76. ## Organic Chemistry

--Why does caffeine have a larger Rf value than chlorophyll? --If two compounds have the same Rf under identical conditions. Does this show that they have identical structures? Explain.

asked by James on October 23, 2008
77. ## Calc

Show that f is strictly monotonic on the given interval and therefore has an inverse function on that interval. f(x) = abs. val. (x + 2), [-2, infinity)

asked by Brandon on December 6, 2010
78. ## Calc

Evaluate the integral or show that it diverges: Integrand 0, lower, to 3, upper, (1/x)dx. a. infinity b. negative infinity c. 0 d. ln 3 e. none of the above

asked by Darren on January 25, 2013
79. ## Maths: Sequences need help

The nth term of a sequences of v1,v2,v3 is given by Vn=6 2^n (1):show that for all value of n>1 Vn1=2(Vn-3)?? (2): obtain and simplify the sum of the first n term of the sequence??

asked by Collins on September 26, 2015
80. ## Math

Steps of calculations that show the simple interest on a R5000 loan for 3 years at 9 percent interest

asked by Belinda on February 21, 2016
81. ## Calculus 2

Can someone please show and explain step by step how to evaluate this integral? Problem #1)∫ 1/(x^3+x^2+x+1) dx This is what I got so far. I am not sure what to do thereafter after doing partial fraction decomposition (in which I got A = 1/2, B = 1/2,

asked by Miki on March 2, 2015
82. ## How to calculate marks to pass with the exam

My friend has currently 62.4% and the final exam is worth 30%. She's wondering how much she should get on the exam to at least pass or boost it up. Please show the math :o

asked by Anonymous on January 23, 2011
83. ## Economics/Stats

I have data on unemployment over the past 15 years for three different groups. I would like to show that there is more volatility in several of the groups than there is in the other. What tests should I run?

asked by Ben on February 26, 2008
84. ## Trigonometry

1. Using the definitions of odd and even functions, explain why y=sin x+1 is neither odd nor even. 2.Using the definition of an even function, show that y=-cos is even.

asked by Ryan on March 1, 2016
85. ## economics

With illustrations, show how the study of business economics helps a business manager in decision making?

asked by bobby on October 27, 2010
86. ## PHYSICS

A ball is projected horizontally with a velocity of 2.5m/s. Find its position and velocity after one second. pls show ur workings.

asked by PEACE on March 29, 2016

Hi everyone, I've been stuck on this question. Please anyone help. Show step by step and answers. Thank you. - Determine the​ quarter point of y=−cos(2x−π) THANK YOU.

asked by chichi on August 3, 2016
88. ## aircondition & refrigerator

how many kj will be absorbed in changing 93kj to it at 20degree celsius to water in 40degree celsius show working

asked by eze stanley on February 28, 2015
89. ## Math

Determine whether the statement is true or false. Explain or show why. If a natural number is divisible by 7, then it must also be divisible by 21

asked by Anonymous on October 4, 2009
90. ## 3 grade math ms sue

1-Two shapes can be put together in different ways. using the triangles in exercise 1,draw pictures to show an example. my son need help in here please help my son thank you

asked by dw on June 5, 2012
91. ## algebra 2

Write a polynomial function that has the zeros 2, -2, and -1 and has a leading coefficient of 1. Then graph the function to show that 2, -2, and -1 are solutions.

asked by danni on May 25, 2010
92. ## social studies

Would you please show me a website that shows an actual answer to a dbq? I would like to see a model answer. I am in eigth grade. Thank you.

asked by rochelle on October 28, 2009
93. ## trigonomery

Show that the following statement is true by transforming the left side into the right side. sin θ tan θ = csc θ

asked by arezo on February 7, 2013
94. ## Math

Use the Intermediate Value Theorem to show that there is a root of the given equation in the specified interval. cos x = x. How do I begin this problem? According to the theorem, a=0, b=1 and N=x?

asked by KC on September 2, 2012
95. ## chemistry

show that the mass number and the number of protons are conserved in the following nuclear equation: 234 230 4 92 U-----> 90 th + 2 he

asked by monique n on December 2, 2010
96. ## Math - Coordinate Geometry

The vertices of a quadrilateral are A(-2,3), B(5,4), C(4, -3) and D(-3, -4). Prove that ABCD is a rhombus. Find the area of ABCD. Please show working out, thanks.

asked by Anonymous on December 16, 2016
97. ## maths

The perimeter of a farm in a shape of a square is 3,5km what is the length of 1 side the farm ?show all calculations

asked by Cindy on July 27, 2011
98. ## Algebra

(x+3)/(x+8)-(x-8)/(x-3) I worked this out and got -55 Ans. But was marked wrong because the Ans. is 55 why and how does this end with no minus(-)sign please show working

asked by bc on October 9, 2015
99. ## Calculus

x(squared)+8x+17 if x < or = -4 Let f(x)= 2 if x= -4 -x(squared)-8x-15 if x > -4 Show that f(x) has a removable discontinuity at x=–4 and determine what value for f(–4) would make f(x) continuous at x=–4. Must redefine f(–4)=____

asked by Ethan on April 15, 2008
100. ## maths quartic equation need help

the quartic equation x^4+2x^3+14x+15=0 has equal root of 1+2i find the other three root help me show step plz

asked by philip on September 26, 2016