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 317
1. salwan boys sr. sec. school

show that the line x+y=5 touches the circle x²+y²-2x-4y+3=0.also, find point of the contact.

asked by suraj on December 3, 2015
2. Math

Show his to make one addend a ten. Complete the new addition sentence. 15+37=? ---- + ---- =

asked by Ni on October 15, 2012
3. Calc-Derivative

Find the derivative of x^(1/x). Can someone show me steps for this problem...I go round in circles

asked by Anon on December 9, 2012
4. Math

Show how to make one addend a ten. Complete the new addition sentence. 22+49= ? ---- + ---- =

asked by Ni on October 15, 2012
5. Math

Show that of all the rectangle inscribed in a given circle,the square has the max area

asked by Rahul on July 25, 2016
6. calculus

Show that the equation;x+3sinx=2 has a root between x=0.4 and x=0.6 using newton raphson's formular only

asked by farouk on November 16, 2011
7. Calculus

Show that of all rectangles with diagonal length c, the square has the largest area.

asked by DJ on October 16, 2011
8. Math

The diagram Shows a right-angled triangle abc in which ab =12 cm and Ac=15 cm Show that the length of bc is 9 cm

asked by Akilesh on June 18, 2016
9. physics

Show that the magnitude of the charge on a capacitor is given by Q = (Qo(1-e^-(t/T))) and Q = Qoe^-(t/T) for charging and discharging, respectively.

asked by Jason on October 29, 2013
10. Calculus

Use logarithmic differentiation to find the derivative of f(x) = x^x+2 and simplify. Please show steps. Thanks.

asked by Rene on April 16, 2013
11. multivariable calculus

show that a=!0 , the equation p=2asin0cos0 describes the sphere centered(a,0,0) at radius|a|

asked by robert on February 15, 2015
12. biology

what compound is formed when CO2 is bubbled through water?show the reaction.

asked by lola on July 29, 2011
13. Math

Show why the below equation is true using the areas of rectangles: 2p+5p=(2+5)p 3(4-1)=3x4-3x1

asked by Nate on January 30, 2012
14. algebra

For f(x)= 3x^2 +5 and g(x)=7x-2, a. Verify: (show the steps for each side clearly.) g(x+2) not equal g(x) + g(2). I need help idk answer a.

asked by T on September 21, 2015
15. Databaes

Show me an example on how I can create and establish a database of a library and a security firm?

asked by Jnr John on June 30, 2013
16. math

Show me how to write 201046 in standard form and in expanded notation

17. Physics

Show that the x-component of the tension force Fc in terms of its magnitude Fc is given by -0.3420 Fc

asked by Jane on June 10, 2014
18. Calculus

limit as x approaches infinity. (sin2x)/(x) answer is 0. show me how please. thanks in advance =)

asked by jawn on August 25, 2009
19. biology

how could you set up an experiment to show that the oxygen is coming from the plant and not from the water???

asked by chantelle on April 19, 2012
20. Algebra

Simplify 4sqrt6/ sqrt30 by rationalizing the denominator. Need help can someone show me steps on how to do this

asked by Lane on May 18, 2018
21. math

asked by Blue on February 28, 2013
22. Math

Are the differential equations separable or not? 1. y'= ye^(x+y) 2. y'= ye^(xy) 3. y'= y(xcos(y)) If they are, could you show how? Any help, even on one, would be extremely appreciated!

asked by Leah on February 2, 2011
23. mathematics-slope of tangent

Find the slope of the tangent to the curve x^2+xy+y^2=4 at the point(2,-2) please show workings #thanks

asked by p1 on March 23, 2016
24. Chemistry

Using the fact that fresh water has a density of 1000 kg/m3 , show that 5ppm Pb = 5 mg/L Pb .

asked by Sam on December 12, 2016
25. math

Choose a nonzero integer for n to show that -n can be evaluated as a positive number

asked by Anonymous on June 30, 2009
26. Maths

By using the identity cos2A=1-2sin^2A show that cos4x = 1-8sin^2xcos^2x

asked by Shauna on June 9, 2013
27. physics

Show that the average speed of a rabbit that runs a distance of 30 m in a time of 2 s is 15 m/s.

asked by Cassie on April 21, 2013
28. calculus-help.. .Me

if y=e^(-kt)[Acosh(qt)+Bsinh(qt)] where A,B,q and k are constant show that d^2y/dt^2+2kdy/dt+(k^2-q^2)y=0 step plz thanks

asked by samuel on May 24, 2016
29. Biochemistry

Which two ionization states of lysine are present at pH 7 in what and ratio? Show calculation

asked by Megan on September 9, 2007
30. Math

Decide whether or not the number 235,950 is divisible by 30. Show or explain why.

asked by Anonymous on October 4, 2009
31. Calculus

Let F(x) = (x+1) / (x^2-16). Use the definition of the derivative to compute f'(x) and give its domain. Show all steps.

asked by jaime on February 3, 2017
32. integral

integral from 0 to pi/4 of (secxtanx dx) Please show how to find the antidervative of secx and tanx.

asked by Linda on April 15, 2015
33. Science

Which of the following land regions should show the greatest similarities in fossil types?

asked by Blake on February 16, 2016
34. Algebra 1

As a team we are having trouble coming up with the same ordered pairs for the following 7x+6y=15 and -7x+y=27. We came up with (17,-8) can you show your steps please

asked by Team A on September 15, 2010
35. math -fractions

find three ways to show that 7/8 is greater than 5/8 use pictures ,numbers and/or words

asked by arjel on January 4, 2011
36. Algebra

Can someone show me how to Simplify the radical expression ã363-3ã27 in steps please

asked by GummyBears16 on April 7, 2016

Can you recommend a site that will show how to divide whole numbers by fractions or give me an example.

asked by Lynn on October 23, 2010
38. Lit

how does mark twain show racism and slavery in huckleberry fin? thanks!

asked by allie on December 3, 2013
39. maths b

use the z score table to find the floolwing: a) p(1.2

asked by jay on September 11, 2014
40. algebra

I have 2 problems that are hanging me up. Can you show me how? What values for x must be excluded in the following fraction? x-3/-8 Simplify: 6-(a/b) over 24/b take out a 6. -(a/b) over 4/b

asked by kat311 on June 28, 2007
41. Divisors?

What is the largest remainder possible if the divisor is 10? I am helping my child and do not know how to do this Please show me how to and how to explain it.. Thank u

asked by Christine on October 9, 2014
42. science

What type of liquid is water? (polar or nonpolar)  show your calculations.

asked by Kate on January 16, 2009
43. phyics

_________ was the first to show that all objects fall toward Earth with constant ____________.

asked by Ashley on October 23, 2014

what graph do i use to show miles of coastline of westernmost california counties

asked by Sally on October 13, 2009
45. Math

Reduce the fraction to simplest form 2x+2/6x^2+16x+10 (the 6x is squared I think that's how you show it)

asked by Matt on November 28, 2011
46. social studies

Are there any websites which show whether or not Taiwan will be able to achieve complete independence from China?

asked by Anonymous on May 20, 2013
47. english

where can I get visuals, illustrations and statistics that show the need for dress codes in schools? Thank you

asked by Mel-Ms. Sue on June 8, 2008
48. calculus

Show that the curves (y= √2sinx) and (y=√2cosx) intersect at right angles at a certain point with 0

49. Linconl

Insert a pair of parentheses() in each equation to show the associative property (6+1)+8=6+1+8

asked by Januel on September 5, 2012
50. Geometry

Finding Angle Measures: Find the value(s) of the variable(s). (3x+20)(5x+50)(y) Please show steps!

asked by Jennifer on September 11, 2008
51. Math

(Find the slope and y intercept of the graph of each equation) 2y + 4n = -6x Please show steps. Thank you!

asked by lol on January 3, 2015
52. Math

Identify the number 126 as either prime or composite. Show or explain why

asked by Connor on October 4, 2009
53. geography

Thank you Ms. Sue. I went to one of those websites and was able to show my Mom that Madagascar is in Eastern Africa!!!

asked by Reed on October 16, 2010
54. math

how am i supposed to use the quotient of powers property to show that zero to the zero power is undefined?

asked by arya on September 24, 2008
55. math

idk how 2 do it the teacher told us how but didn't show us plz help (the 2 is an exponent) 3b^2+b-10=0

asked by Bella on March 23, 2011
56. problem solving

Assuming that you breathe once in every 12 seconds, how many breaths do you take in 4 weeks? You must show the use of units.

asked by ben on December 8, 2012
57. physics

show that in the limit that the radius of the sphere goes to zero to kept the magnetic moment constant

asked by bbb on November 12, 2010
58. algebra

1)A.f(x)= x^2+4 B.f(x)= x^2-4x^2+4x-16 C.f(x)= x^2+4x^2+4x+16 D.f(x)= x^2-4x^2-4x+16 2)A.+-1,+-2,+-3,+-6 B.0,+-1,+-2,+-3,+-6,+-1/3,+-2/3 C.+-1,+-2,+-3,+-6,+-1/3,+-2/3 D.+-1,+-3,+-1/6,+-1/3,+-1/2,+-3/2 4)I don't know what they mean either but this is all it

asked by Marissa on August 17, 2007
59. physics

QA: This question is typical on some driver’s license exams: A car moving at 40 km/h skids 12 m with locked brakes. How far will the car skid with locked brakes at 80 km/h? Answer in units of m QB:A cheerleader lifts his 62.2 kg partner straight up oﬀ

asked by LYNN on September 27, 2012
60. ALGEBRA

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)

asked by Randy on May 6, 2012
61. ALGEBRA

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)

asked by Monic on May 18, 2012
62. math

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)

asked by apryl on August 23, 2011
63. Finance

A company wants to buy a labor-saving piece of equipment. Using the NPV method of capital budgeting, determine the proposal's appropriateness and economic viability with the following information: Labor content is 12% of sales, which are annually \$10

asked by Mary on August 31, 2010
64. Science

I have two questions that I need some help with please. 1) Developing a scientific understanding of a natural phenomenon typically begins by A)making a prediction B)Testing a hypothesis C)proving an answer or D) making an obvservation. I'm pretty sure it's

asked by Jon on September 12, 2011
65. Math

Calculate the monthly finance charge for the following credit card transaction. Assume that it takes 10 days for a payment to be received and recorded and that the month is 30 days long. Assume 365 days in a year. (Round your answer to the nearest cent.)

asked by JC on August 5, 2012

Nic has a revolving dept store credit card account with rate 15%annually. Lastmonth balance on the account was \$423.78. During the current month, he made purchases totalling \$123.42 and made a payment of \$100.00. The store uses the unpaid balance method.

asked by Marcy on December 15, 2010
67. water molecules

water molecules separate positive and negative ions from one another by forming covalent bonds, ionic bonds valence shells hydration shells It forms a solution. Since solution isn't one of the answers, hydratin shells is the next best answer. OR, you can

asked by maxie on January 17, 2007
68. physics

A constant horizontal pull of 8.25 N drags a box along a horizontal floor through a distance of 19.1 m. Q How much work does the pull do on the box? Ans: i got the answer as W = 158 J But i have problem with the second question? Question: Suppose that the

asked by nancy on March 21, 2011
69. algebra

y=2x^2+5x-3 a)determine the x-intercepts b)determine the vertex c)determine the axis of symmetry d)determine the maximum or minimum value, stating whether it is a maximum or a minimum e)determine the range can i get the equations so i can try them myself?

asked by Shay on January 18, 2007
70. Calc Jacobian

Thanks "I know that the xy region is the line x=y y=0 and y=1- x/2)" It is helpful to rewrite the region in the x-y plane by specifying the three lines and the endpoints, i.e. the points where they intersect. If you insert these points in the formula for U

asked by Rob on December 4, 2006
71. Physics

A block of weight = 25.0 N sits on a frictionless inclined plane, which makes an angle = 34.0 with respect to the horizontal, as shown in the figure. A force of magnitude F= 14.0 N, applied parallel to the incline, is just sufficient to pull the block up

asked by Eden on October 17, 2010
72. Physics/Math

A 2.8 kg body is at rest on a frictionless horizontal air track when a horizontal force F acting in the positive direction of an x axis along the track is applied to the body. The force F is applied to the body at t = 0, and the graph records the position

asked by Technoboi11 on March 5, 2007
73. science

which best describe the desert? a.thick,waxy leaves b.many large leaves. c.a shallow root system.d.a tall,woody stem.

asked by kim on May 4, 2010
74. science

I am haveing trouble measuring thin with the metric system and I have a test tommorow can you please help me study. What is the trouble you are having? Do you have any specifics? how is eath formated?

asked by Billy on September 25, 2006
75. Physics

A spring with a spring constant of 35.0 N/m is attached to diﬀerent masses, and the system is set in motion. What is its period for a mass of 2.4 kg? Answer in units of s

asked by alice on April 1, 2013
76. Physics

A spring with a spring constant of 35.0 N/m is attached to diﬀerent masses, and the system is set in motion. What is the period for a mass of 34 g? Answer in units of s

asked by alice on April 2, 2013
77. algebra2

graph each system of equations and describe it as consistent and independent, consistent and depedneent, or inconsistent 40. x-6y=12 3x+18y=14 41. -5x-6y=13 12y+10x=-26 42. 8y-3x=15 -16y+6x=-30

asked by anonymous on September 29, 2014
78. Biology

Explain why the visual perceptions that other animal(mammals, insects) have and why that sensory input would vary and be differ from our own “vertebrate” visual system.

asked by John Nguyen on November 28, 2007
79. Math

Please help with these 3 questions. 1. Suppose that y varies inversely with x, and y=3, when x=5. What is an equation fpr the inverse variation. 2. What are the solutions to the system? y=x^2+2x-45 y=-3x+5 3. -sqrt 18 divided by sqrt 12 Thank you!

asked by April Preston on May 15, 2017
80. Chemistry

H2 (g)+I2 (g)↔2HI(g) Calculate ΔG for the system at 700 K when the concentrations are [H2] = 0.12M, [I2] = 0.27M, and [HI] = 0.118M. What would be my first step? If I make an ICE chart, what would I do from there? I just need the first step to help me

asked by Robby on May 2, 2015
81. History

1.What economic system focused on exports and acquiring precious metals? A.capitalism B.mercantilism C.market economy D.traditional economy

asked by yellowbelly on February 28, 2019
82. physics

A 1000 kg rocket without an internal propulsion system is launched with an initial speed of 7.00 x 10^2 m/s. Determine the maximum height attained by the rocket

asked by Liz on July 13, 2014
83. physics

For a spring block system M=2.72*10^5kg frequency 10.0 hertz and amlitude 20.0cm (a) What is E (b) What is the block speed at its passes the equlibrium point.

asked by Ghazala shoaib on February 12, 2012
84. History 2

the public school system in georgia was the result of laws passed during A. World War 1 B. The Civil War C. Reconstruction **** D. Antebellum

asked by HELP MEEEEE on December 15, 2014
85. Physics

I would say it is true that the center of mass of an isolated system moves at a constant velocity, as long as there is a constant force applied to it. Am I correct?

asked by David on December 16, 2011
86. Biology

The p53 enzyme system prevents progression to which stage of the cell cycle? choices are: 1. G1 2.Cytokineses 3.S phase 4. Mitosis 5. G2 * I think it's S phase, It's not G1 right?

asked by sarah on March 28, 2017
87. physics

A Fletcher's trolley is set up over a cliff. If m1 = 40.5 kg (on top of the cliff) and m2 = 18.5 kg (hanging over the edge), what coefficient of friction is needed for the system not to move?

asked by po on March 17, 2013
88. physics

The system is frictionless and the trolley accelerates to the left at 3m/s squared. (a) calculate the unknown mass M. (b) calculate the magnitude of the forces in each string.

asked by kulani on March 15, 2015
89. algebra

Let A be an m×n matrix and b ∈ R m. Prove that the system of equations Ax = b is inconsistent if and only if there is a leading term in the last column of row echelon form of the augmented matrix

asked by sowmya on February 8, 2018
90. goverment

America’s founders envisioned a _________________________ that was closer to the government of ancient Athens than to the political system found in America today

asked by kendra on June 24, 2013
91. sociology

The U.S. Census Bureau relies on a _____ system of racial classification. genetic legal social self-definition biological i think ii is self- definition

asked by andrew on November 18, 2018
92. Algebra

The girl's basketball team scored 57 points and made 25 shots. Each shot was worth 2 or 3 points each. Write a linear system.

asked by Emma on January 9, 2013
93. history

the political system in which the citizens are likely to have the most immediate influence on their government is a? 1)direct democracy 2)representative democracy 3)aristocracy 4)constitutional monarchy 5)dictatorship

asked by kayci on May 10, 2010
94. Is this right Ms Sue ???

through their study on earth, geographers learn how earth and its people affect ? human health the solar system each other political systems***

asked by lilly on October 26, 2015
95. college physics

What is the force applied in the direction of the wire at a point attached to the patient in a traction system, if the mass applied is equal to 5kg?

asked by Silent on August 5, 2014

through their study on earth, geographers learn how earth and its people affect ? human health the solar system *** each other political systems

asked by lilly on October 26, 2015
97. Algebra

Slove each system by substitution. 4x = y - 1 6x - 2y = -3 I have already attempted this problem and couldn't figure out what I should do. I came out with 4x + 1 = 3x + 1.5 I think this looks right because our teacher told us that for this specific problem

asked by David on December 14, 2010
98. Psychology

Is this a source that you would consider a scholsrly source. Kliff, S. 2012. Seven facts about America’s mental health-care system. The Washington Post.

asked by Diane on July 18, 2013
99. History

Respond to a statement: The American Free Enterprise system is alive and well. If you don’t mind could you send me a link related to this statement

asked by Niki on November 15, 2017