# 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 327
1. ## Ethics

couple of things to do here for the paragraph: 1. Get the facts 2. Identify stakeholders and their positions. this is paragraph. A coworker calls you at 9 a.m. at work and asks for a favor. He is having trouble this morning and will be an hour late for

asked by Gurv on November 9, 2006
2. ## Chemistry

A conductivity cell was calibrated using KCl solution (0.01 mol dm^-3) with a conductivity of 0.141 S m^-1 and the resistance was found to be 520 Ohms. The resistance of a saturated solution of silver chloride was found to be 3.8 x 10^5 Ohms. Calculate the

asked by Alice on January 4, 2009
3. ## maths

For the area shown on the attached chart, show/prove that the magnetic variation in 2013 would be 10°5’E.

asked by Anne on March 16, 2013
4. ## Math

Show all the ways of breaking apart 8/8 write the equations next to each array and draw a line to separate it.

asked by Anonymous on February 5, 2014
5. ## physics

A ball tossed upward reaches a maximum height of 3.0m. Show that its initial speed was 7.7m/s.

asked by Daisha on February 12, 2011
6. ## geography

Make a model of the world map,show temperature grasslands & desert along with a animal

asked by MANOJ on June 27, 2016
7. ## Chemistry

Beginning with the ideal gas equation show how density of a vapor may be determined? I have so far: n = (PV)/(RT) d= m/V n= m/MW by rearranging i get d = P(m/MW)/RT

asked by Heidi on October 18, 2011
8. ## math

sorry heres the whole question having troulbe with this on can you show how to it Determine which two equations represent parallel lines Y=3/7x+1 Y=-7/3x-4 Y=3x+8x Y=3x-1

asked by Anonymous on January 12, 2008
9. ## Science

is there a chart available that show the vapor pressure of Isopropyl alcohol and water solutions at 68 degrees F ?

asked by Daniel on March 18, 2016
10. ## math

write the sum. show the make-a-ten fact you used. 9 + 7 = ______________ 10 +____________=_______________

asked by mary on November 9, 2010
11. ## social studies

can anybody show me a timeline that links from paleolithic times to the chaldean empire? please this is due on monday!

asked by Anonymous on December 30, 2009
12. ## algebra

I need to find the approx. value for x that are solutions to f(x)=0 for f(x)=-5x^2 + 7x + 2 please show steps as the answer I got does not match any of the multiple choices.

asked by Alaska Diamond on September 26, 2013
13. ## Math

I am lost helping my 3rd grade granddaughter... This is what this problem shows and nothing else What property does this show? ****=* * * *

asked by Karen on February 9, 2015
14. ## Algebra 2

How do you get the real-number solutions of 5b^3 + 15b^2 + 12b = -36? I get to (b+3)(5b^2 + 12) and I don't know what to do after that. Can someone please show me how to finish this problem?

asked by Krystal on October 9, 2013
15. ## earth science

1. What observations show that the universe is expanding? 2. What can astronomers infer from the fact that other galaxies are moving away from ours? Please help! Thanks :)

asked by bunni on June 2, 2009
16. ## Calculus

I am having a lot of trouble doing these types of problems. Can someone show me how to do this. Thank you for your time. Evaluate the definite integral 4 x(x+3)dx 0

asked by Elena on May 14, 2008
17. ## algebra

Quadratic equation whose roots are 5 and -5 with coefficient 3 using the letter x to represent the variable please show steps

asked by tbell on June 9, 2014
18. ## 12th grade calculus

a marathoner ran the 26.2-mi New York City marathon in 2.2h. show that at least twice, the marthoner was running at exactly 11 mph

asked by ee on November 6, 2008
19. ## Science

How many atoms are in LiBr2 show in the reaction side? LiCl (22g) + Br2 (30g)

asked by M on January 15, 2015
20. ## chemistry

A diver is able to cut through water in a swimming pool. Which property of matter does this observation show?

asked by aakash on May 1, 2008
21. ## Math

Complete to show how you can find the sum by making a ten, hundred or thousand: 9+5=__ 9+1+__ 10 +__ ______

asked by Emy on September 7, 2011
22. ## Chem

Plz Show Me How It Come About write an ionic equatio in the reaction betwee CaCO3 & HNO3

asked by The Okome on March 1, 2019
23. ## Math

in the problem 15 + 37=52, show how to make ONE addend the next tens number. Complete the new addition sentence __+__=__????

asked by Julie on October 9, 2013
24. ## math

In how many ways can a row of three contestants for a TV game show be selected from an audience of 350 people?

asked by gisela on October 1, 2014
25. ## math

Turn 7 21 into a percent and decimal. First simplify the fraction. Show your answer on the number line.

asked by julie on March 9, 2011
26. ## science

I have to draw Atomic Model Drawings of the Reaction to H2CO3 and then show a balance check. How do I do that?

asked by Anonymous on October 23, 2010
27. ## Maths

There are 3 vectors: p= 7i + 10j q= 3i + 12j r= -i +4j Could you show me how to find the angle PQR. using the scalar product.

asked by Anique on March 14, 2011
28. ## math

show that abc is a right angled isosceles triangle prove that AD>AC and AC>CD also arrange in ascending order

asked by dcs on July 20, 2016
29. ## chem

How many moles of O are in 13.0 mol Fe(NO3)3? can you please find this using dymensional analysis and show me how you worked it? Thans

asked by sara on November 10, 2010
30. ## physics

is this right?if 5.0m/s^2=6.0m/s-0/1.2s a=fn/m 5.0m/s=15.0N/3kg show that the 5.0m/s^2 acceleration can result from a net force of 15N exerted on a 3.ok cart

asked by angie on January 20, 2014
31. ## Spanish (check answer)

Which of the following phrases show the correct use of the article "the"? A. los hermanas B. el hermanos (my answer) C. el papa

asked by CaptainCleanFreak on September 1, 2017
32. ## maths help

A binomial expansion is such that (p + x)^n = 3q + 6qx + 5qx² + .. If p ≠ 0, find the values of p, q and n plz show step

asked by Anonymous on November 3, 2016
33. ## ELA

TO HELP ESTABLISH COHERENCE IN A COMPARE AND CONTRAST ESSAY, WHICH OF THE FOLLOWING TRANSITIONS WOULD BEST SHOW A COMPARISON BETWEEN IDEAS?

asked by tina on November 23, 2015
34. ## calculus

Use logarithmic differentiation to find the following derivative: y=(x+6)^4/(x-5)^6. Please show all step so I can understand for future reference.

asked by anonymous on April 20, 2013
35. ## Calculus II

Consider the sequence: (a,sub(n))={1/n E(k=1 to n) 1/1+(k/n)} Show that the limit(as n-> infinity) A(sub(n))= ln 2 by interpreting a(sub(n)) as a Reimann Sum of a Definite Integral.

asked by chelsea on April 15, 2014
36. ## algebra

a rental truck costs \$50 plus \$0.40 per mile show me how to complete the table x(miles) 30 40 50 60 need help with y(cost)

asked by shirley on October 15, 2017
37. ## math

A cubical dice is rolled two times. Show the probabilities of all the possible outcomes of getting or not getting 5 in a tree diagram

asked by bhawana on June 24, 2016
38. ## Algebra

How many small triangles are in a triangular grid that has 20 units on a side. Please show me a formula to figure it out . Thanks

asked by Cheyenne on March 20, 2018
39. ## Trigonomentry help plz!!!

Sin3A=3sinA-4sin(x/2)^3 find x interms of A? PLZ show working got no ideal at all

asked by Emmanuel on January 18, 2016
40. ## math

create a tree diagram to show all possible arrangements of the word "MATH" how many outcomes exist?

asked by umnia on February 25, 2016
41. ## calculus

Explain and show how you would estimate 0.5 x 4.62 . Then justify why this is a good choice for arriving at the correct answer.

asked by Keziah on October 21, 2010
42. ## troy Academy

a comparison of the average temperatures on any given day at points Z, X, and U on the globe would probably show that the temperature at point X is

asked by lee on May 8, 2014
43. ## physics

Consider a pair of planets for which the distance between them is decreased by a factor of 5. Show that the force between them becomes 25 times greater.

asked by Anonymous on October 11, 2009
44. ## Froude number

Show that Froude number of a propeller with diameter D and rotational speed n(1/sec) can be given as Fn=n*sqrt(D/g)

asked by Hydro on February 20, 2014
45. ## Find x and y and also log

Question1:2^x+y=6,3^x-y=4 find x and y???? quesstion2:a^2+b^2=7ab show that log(a+b)=log3+(loga+logb)/2????

asked by Collins on October 2, 2015
46. ## Maths.literacy

If a plane flies at 185km/h, how long would it take to fly from Morgenhof to Neethlingshof? Show calculations.

asked by Calvin on July 24, 2014
47. ## Calculus

Find the dimensions of the rectangle with the most area that will fit above the x-axis and below the graph of y=e^-x^2. Please show with every step. Thanks.

asked by Alex on January 3, 2011
48. ## Televison Production

Can someone please find a good website that dhows examples of what a television show proposal is supposed to look like?

asked by Kim Breed on April 23, 2012
49. ## algebra

use the intermediate value theorem to show the polynominal function has a zero in the given interval f(x)=x^5-x^4+3x^3-2x^2-11x+6; [1.5,1.9] x= -2.33 y=10.19 after i plugged in the 1.5 and 1.9 i just want to know if my x and y are correct

asked by ash on August 26, 2012
50. ## PRE calculus

Find the area between each curve and the x-axis for the given interval. y=6x^2+5 from x=0 to x=5 I'm just starting to learn about this and am very confused. Can someone show me how to do this. Thanks. I need help.

asked by Albert on May 14, 2008
51. ## to " ... anime lover"

You need to choose a screen name that doesn't include obscenities. Then your questions will show up and a math tutor might help.

asked by Writeacher on December 14, 2015
52. ## science

Define the geological time scale and explain why geologists use it to show Earths History.

asked by victoria on December 18, 2013
53. ## Geometry

Find one counterexample to show that each conjecture is false. The sum of two numbers is greater than either number.

asked by Catelin on August 7, 2011
54. ## Math

Principal is \$1,800. Rate is 10%. Simple Interest is \$360. What's the time? Please show how you go to this answer.

asked by Jackie on February 7, 2011
55. ## Pre-Calculus

Let f(x) = [(√x)-7]/[(√x)+7]. What is f'(x)? What is the easiest way to find the derivative of this? Should I remove all the radicals and use quotient rule, like f'(x)= ((x^0.5) + 7)(0.5x^-0.5) - ((x^0.5)-7)(0.5x^-0.5) / ((x^0.5) + 7)^2 Is this right?

asked by Ann on October 31, 2013
56. ## Algebra

Show that two WRONG's can make a RIGHT. Replace each different letter in the addition problem with a different digit. It is required that O=zero.

asked by Rachel on November 21, 2010
57. ## math

Calculate the future value of S of an annuity using the following formula: S =R(1+i)^n-1/i) given R=250,i=0.001;n=13 please show the workout thankyou

asked by naomie on April 6, 2013
58. ## Chemistry

Asolution contains a weak monoprotic acid HA and its sodium salt NaA both at 0.1 M concentration. Show that [OH] Kw/Ka.

asked by vicha on March 10, 2011
59. ## Science

My teacher has asked our class to each do a 2 minute light and sound show using four different concepts... Any ideas?

asked by C on November 17, 2010
60. ## linear algebra

Show that a subset W of a vector space V is a subspace of V if and only if the following condition holds: If u and v are any vectors in W and a and b are any scalars, then au + bv is in W.

asked by chris on July 11, 2007
61. ## algebra

I'm working on solving linear systems by substitution, here are the equations: 4x+3=y and x=y-2 what is the sollution? and please show me the steps! thanks!

asked by Anonymous on May 26, 2009
62. ## life orientation

choose two of the following human factors that show how they cause ill-health,accidents,crises or disasters.

asked by ntuli sihle on August 5, 2014
63. ## Mathematics

Show that 2i and 1-i are both solutions to the equation x^2-(1+i)x+(2+2i)=0 but their conjugates,-2i and 1+i are not. Then explain why this does not violate the Conjugate Zeros Theorem.

asked by Sarah on December 7, 2010
64. ## Math

Can you explain or show me how to do this problem: Mary bought 8 1/2 yards of ribbon. How many inches did she buy?

asked by Chris on January 25, 2016
65. ## Math

Show that each sequence is geometric. Find the common ratio and write out the first four terms. (Can you explain how to do it too?) > {(5/2)^n) > {(3n/9)} > {3^2n}

asked by Avery on January 27, 2013
66. ## Geometry

What is used to show that an assumption is false? A. inductive reasoning B. counter example C. pattern D. conjecture ANswer: A

asked by Unknown on February 20, 2013
67. ## calculus

f(x)=e^x-x (a) at what x-values does f have relative extrema? (b) find the exact value of -1 to 1 on an interval f(x)dx. (c) show that f does not have any inflection points.

asked by Cleondra on February 19, 2012
68. ## Math

8 students share 5 square pieces of cake equally. Draw to show how much each person gets.

asked by Pam on September 22, 2015
69. ## math

6n2-19n+15=o (the 2 is an exponent) idk how 2 do it the teacher told us how but didn't show us plz help

asked by Angel on March 23, 2011
70. ## Chemistry

Starting with propane, show all the steps required to produce propanone. Anyone know how to answer that question? Please help!

asked by Mei on January 31, 2007
71. ## Annuity math

Calculate the future value of S of an annuity using the following formula: S =R(1+i)^n-1/i) given R=250,i=0.001;n=13 please show the workout thankyou

asked by naomie on April 6, 2013
72. ## algebra

if the bus travels at 110km/h,how long wil it take to drive from A to F without stopping anywhere?'(show all your calculations)

asked by calculations on November 18, 2018
73. ## Math

Find the exact value of sin(pi/24) So like i need like the value like sqrt3/2 but for pi/24... also if you could show me the steps so i could figure the rest out, that would be cool

asked by Chandler on December 10, 2007
74. ## algebra

Can someone show me the step to solving this equation because I am just not getting it. My teacher is confusing me, so I need someone else to explain it in a different uncomplicated way. y-1/x+3 = -3/4.Thanks so much you guys for the help.

asked by kenneth on August 27, 2010
75. ## Calculus

Use logarithmic differentiation to find the following derivative y=(x+6)^4/(x-5)^6. Please show all steps so I can follow for future understanding. Thanks.

asked by Sean on April 21, 2013
76. ## MATH

I NEED ASSISTANCE WITH THE ANSWER TO THIS PROBLEM....SHOW THAT EACH OF THE EVEN NUMBERS 6, 8, 10, AND 12 CAN BE WRITTEN AS THE SUM OF A GROUP OF TWOS.....

asked by CONFUSED MOM on September 10, 2007
77. ## Help me please

Lines which are drawn on a map or a globe to show the heights of given specific areas are called??

asked by Destiny on June 27, 2016
78. ## physics

show the expression v=at is dimensionally correct where v represents speed an acceleration and t is instant time?

asked by Chansa on May 4, 2016
79. ## Math

Find the exact value of sin(pi/24) So like i need like the value like sqrt3/2 but for pi/24... also if you could show me the steps so i could figure the rest out, that would be cool

asked by Chandler on December 9, 2007
80. ## Math

Rate is 9%. Time is 4 years. Simple interest is \$354.60. What's the principal? Please show me how you got to the answer as well.

asked by Jackie on February 7, 2011
81. ## Chemistry

Complete the electron dot structure below to show how beryllium flouride (BeF2) is formed. F F Be+ -> Be F F

asked by Greg on October 9, 2012
82. ## Precalc

Hello, i need help doing a proof, im pretty sure on how to do it but not that way my teacher wants it. He wants it in a chart form by taking splitting up both side. i have to show that |a-b|=|b-a|

asked by Roger on February 19, 2008
83. ## Algebra

For the given equation, list the intercepts and test for symmetry. 2+y-121=0 Show tests algebraically

asked by Emily on April 19, 2013
84. ## math

Ron walked at a speed of 8km/h for 20min. what was the distance covered? please can you show your calculations :D

asked by rexo on November 22, 2017
85. ## Physics

Why is it that interference effects don't show up regularly in glass window panes with two surfaces?

asked by Anonymous on April 10, 2012
86. ## college algebra--need help please!!

use the intermediate value theorem to show that the polynomial function has a zero in the given interval. f(x)=x^5-x^4+9x^3-5x^2-16x+5;[1.3,1.6] f(x)1.3= ? simplify answer f(x)1.6= ? "

asked by ladybug on November 23, 2012
87. ## physics

show working calculate, how far will a stone fall during the sixth hour of rest?(g=ms2)

asked by ddf on June 22, 2011
88. ## math

What is the smallest number that is divisible by the numbers 315, 455, and 875. Can you show me how to get this answer?

asked by Kelley on December 10, 2017
89. ## math

If x^2-x-1 divides ax^6+bx^5+1 evenly, find the sum of a and b. Show all steps and exlain your answer. Thanks alot! =)

asked by not math right now on April 2, 2009
90. ## Math

Show that the bisector of the vertical angle of an isosceles triangle bisect the base at right angles

asked by Sudarshan on March 25, 2017
91. ## science

a pair of plants has the distance between them decreased by a factor of 5-how do i show that the force between them becomes 25 times as strong?

asked by randy on November 14, 2008
92. ## history

why did the romans reuild carthage after they destroyed it in the punic war(show the link )I have a test please help me

asked by paul on January 8, 2012
93. ## science..medicine

does anyone know a website that will show how medicine has improved in china resulting in lower death rate

asked by Maggie R. on September 21, 2007
94. ## Math

Use linear approximation to show that each function below can be approximated by the given expression when |x| is small i.) sinx ~ x ii.) e^x ~ 1+x iii.) ln(1+x) ~ x

asked by Shawn on November 15, 2012
95. ## 4th grade English

Today our entire class (was, are) excited about the talent show. Is was the correct answer for the sentence?

asked by Hayley on January 9, 2009
96. ## algebra

please help! can someone show me the steps in solving this? find all numbers for which the rational expression is undefined -16/19x

asked by deedra on June 14, 2009
97. ## Math

Subtract. Write the answer in simplest form. 1) 3/7-4/5=10/35-28/35 This is the part that I got too and I don't know if I did it correctly or not. Can you please tell me how to do this or show me.

asked by Matt on September 8, 2016
98. ## Physical Science

can you plse show me a link that links to a picture that explains the law of coservation of matter

asked by Amy on November 20, 2008
99. ## art -year8

i need to design a renaissance outfit for art. please could someone help me find some websites that show some outfits that can help me. thankyou.

asked by ellen on April 3, 2009
100. ## calculus

usethe intermediate theorem to show that the polynomial function has a zero in the given interval f(x)=18x^4-8x^2+9x-1;[0,3) can you please me how you got the answer

asked by Caylan on December 22, 2012