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 348
1. Math

What percentage compound interest rate (to 20) will table of an investment of over a period of 5 years? (show working please)

asked by Clara George on January 20, 2016
2. chemistry

Calculate the empirical formula for compound ethyl butyrate (pineapple oil): C, 62.04%; H, 10.41%; O, 27.55% Can someone show me the steps?

asked by Emely on September 27, 2014

i think its C. Which of the following show the correct use of a colon? A. my tennis lesson begins exactly at 40:0 p.m. B. Dear: Ms.Hershel C.I have a doctor's appointment at 12:30 p.m.

asked by matt on May 1, 2014
4. calculus help

the bend moment M of a beam is given by dm/dx=-w(1-x) where w and l are constants.determine M in terms of x given that M=wl^2/2 plz show me working step

asked by ... on December 30, 2016
5. physics

you slide down a pole at a mass of 80kg with an acceleration of 4m/s^2, How do you show that the friction force that acts on you is 480N?

6. TV

If I want to create my own television show in the future, how can I reach that goal by taking a program in university or college?

asked by AL 92 on July 3, 2010
7. art

Assess impact of photography on the 19 th century political and social landscapes show did it affect paintings

asked by Blessed on November 15, 2012
8. Genetics/Di hybrid Cross

Can someone show me how to set up this dihybrid cross? The genotypes of the two parents are RRLL' x RWL'L'. The " ' " meaning "prime."

asked by Anonymous on January 18, 2010
9. English

I know this sounds dumb, but what do you call people who are rich but they act normal, don't try to show off at all, and is very kind.

asked by Jessica on November 11, 2014
10. Physics

A race car traveling at 44 m/s is accelerated to a velocity of 22 m/s over an 11 s interval. What is the displacement of this time? (Could you show how you got the answer?) Thank you

asked by Lenny on February 14, 2010
11. maths plz help

give the expansion sin^8@ as a series of cos@ plz help me show working where @ means theta

asked by sam on September 21, 2016
12. calculus

i need to find the derivative using chain rule and show steps: y= (x) / ((x^2)-1)^(-1/2) and is it possible to have free tutoring online like through a chatroom? i am in need of help

asked by eric on January 10, 2014
13. Socials

the speaker's chair in the house of commons is large and imposing, much like a throne. Why might this be the case? I think just to show authority, do you know why?

asked by ANNA on September 17, 2009
14. math

have a question in math (( distance between two points )) show that C(-5,-1)is the midpoint of the line segment joining A(-2,5) and B(-8,-7) please in detales .. thank u

asked by mota on November 10, 2007
15. physics

derive expression to show that how drag force is dependent on velocity of moving object in fluid

asked by momi on February 17, 2012
16. math

A pie graph show two different business if transport is the greatest expenses of one is how do u Calculates the cost in rands•

asked by zubeida on August 3, 2011
17. 5th math

please show me an example of this one so.i can use it later to pratice the actual test next week here is the problem. complete each pattern. 17,---,--,62,--,92 39,--,--,---75,84 57,--,--,33,--,17 15,--,,--33,--,45 PLEASE FILLED OUT ALL THE BLANK FOR ME

asked by pat on October 19, 2010
18. ALGEBRA

Factor each expression completely. show some sort of check to confirm your answer. (hint: think FOIL) x^2+11+30 x^2-5x-14 9x-16

asked by Andra on September 5, 2014
19. Psychology

Give two examples that show how gender polarization has resulted in women being treated unfairly in the workplace.

asked by Anonymous on May 18, 2009
20. Media influences on American Culture

I just need to know how to start a final paper on a culturally influential,on television show, movie, song or website

asked by carrie on July 30, 2011
21. remainder help!@steve and damon

1^2+2^2+3^2+......+10^10 when it divided by 5 what the remainder???? even a hint can,t help me my head is fried have been do math alday just show me the working i beg!

asked by daniel on March 22, 2016
22. science

how Avogadros hypothesis applied to show molecular mass of volatile substances is twice of Vapour density?

asked by rina on September 10, 2016
23. Chem 202

What is the limiting reactant in this experiment? Assume you used 1.0 g of the copper(II) sulfate pentahydrate and 7. 5 mL of 6.0 M NH3. Show your calculations. Its been a while need some help, thanks!

asked by Jeff D on August 24, 2017
24. Chemistry, Science

How many Cl- ions are present in 2.35 mol of CaCl2 and please show steps ! Need help so I can study for a huge test tomorrow

asked by Danielle on November 14, 2013
25. math

have a question in math (( distance between two points )) show that C(-5,-1)is the midpoint of the line segment joining A(-2,5) and B(-8,-7) please in detales .. thank u

asked by mota on November 10, 2007

Use the Pythagorean Identify to show that the double angle formula for cosine can be written as: cos2x = 2cos^2x - 1

asked by Anonymous on November 2, 2009
27. PHYSICS

'show that a 2.5m length of wire with cross section area 0f 1.0mm and resistance of 0.75ohms has a resistivity o f 3.0 ×10-7'

asked by JOHN on June 30, 2015
28. ochm

sodium lauryl sulfate can be prepared by replacing chlorosulfonic acid with another reagent. what could be used? show equations

asked by lucy on September 8, 2015
29. Histroy

How does the supreme court show that the constitution allows congress to exercise the power to regulate commerce within a state?

asked by Lacy on February 24, 2008
30. Accounting

What are three challenges accountants should complete to be considered for a spot on a reality show as an accountant with a national firm.

asked by Jewel on April 1, 2009
31. Linear Algebra

Show that the functions (c1+c2sin^2x+c3cos^2x) form a vector space. Find a basis of it. What is its dimension?

asked by diamon on September 6, 2012
32. history

How does the supreme court show that the constitution allows congress to exercise the power to regulate commerce within a state?

asked by Don on February 24, 2008
33. calculus

Show that the tanget lines to the graph of Y= e^x - e^-x /e^x + e^-x at x =1 and x= -1 are parallel. I know to use the Quotient rule but I am having a hard time with this problem.

asked by dino on November 5, 2012
34. Physical Science

Alpha particle tracks through gases and thin metal foils show few deflections. What does this tell us about the atom??

asked by Brooke on September 29, 2011
35. math

Using the vertices: B(-9,1), E(2,3), F(12, -2), G(1,-4). Determine whether BEFG is a rhombus, a rectangle, or a square. List all that apply and show the steps

asked by Samuel on February 1, 2018
36. math

Give a counterexample to show that the following generalization about the set of integers is false. Closure property for division.

asked by m on October 19, 2010
37. alebra

write the equation in slope-entercept form. W(-1, 2.4) and S(5, 2.4) m=2.4-(5) ______ 2.4-(-1) for the answer I get -2.6 _____ 3.4 is this right if not please show me where I got off track.

38. computer

code for a program to display a payroll in C++ to calculate the salary and bonus % show the name, age and rank.

asked by abdul on February 3, 2015
39. Maths

show that the semi vertical angle of a right circular cone of a given surface area and maximum value is sin-1 (1/3)

asked by Marwein on November 18, 2012
40. calc

Suppose the function a) Use the definition of the derivative to show that f ' (-2) = -1. b) Write an equation for the line tangent to the graph of f at x = -2.

asked by Eliza on December 28, 2011
41. calc

Suppose the function f(x)=4/x a) Use the definition of the derivative to show that f ' (-2) = -1. b) Write an equation for the line tangent to the graph of f at x = -2.

asked by Eliza on December 28, 2011
42. science

Show that 9300 cal is required to change 15g of 20C water to 100C steam

asked by favev on September 21, 2015
43. Algebra

What type of equation will best fit the data below? Linear Quadratic Exponential (I have a picture of a graph is there a way I can show it too get help?)

asked by Ember Lovet on September 29, 2017
44. Math

A clock loses 12 minutes every hour. If it is correctly set at 3:00, in how many hours will it next show the correct time?

asked by Anonymous on July 19, 2011
45. English

What reasons relating to 1984 means the the reality tv show World's stricktest Parents should be banned.

asked by Linda on March 6, 2014
46. Calculus I

Hello! I am not sure why I am getting this problem wrong, and I keep getting six. Could someone be kind enough to show me how it's done? Thank you very much in advance! Find the limit. Use l'Hospital's Rule if appropriate. lim ((5x − 2)/(5x + 4))^(5x +

asked by DeeDee on June 30, 2014
47. physics

5. A bomber is flying at a height of 9 km at 800 km/h. How far in front of the target should he drop his bombs? show formulas*

asked by brian on November 28, 2012
48. Science

Show that FαβFαβ is Lorentz invariant, where the symbols carry their usual meaning. In second Fαβ are in prefix..

asked by Rabin bro on July 25, 2018
49. Physics

consider a pair of planets that find that the distance between then is decreased by a factor of 5. Show that the force between them becomes 25 times as strong.

asked by Me on April 2, 2010
50. Math 140

p(x)=(5x^8)-(x^2)+100x-3 Write all possible rational zeroes, please show how you arrived at the answer. I just came up with this problem hope it works

asked by Kay1020 on February 28, 2011
51. statistic

let y1

asked by assma on May 27, 2015
52. Math

The sticker price of car is \$15,800. If the sales tax is 8% what is the total cost? Show working

asked by Devon on January 31, 2012
53. chem

what temperature must be maintained in insure that a 1.00 L flask containing 0.04 moles of oxygen will show a continuous pressure of 745 mm Hg?

asked by Gabby on March 20, 2011
54. CALCULUS

find f'(x) for f(x) = x/(sqrtx^2+1) please show all the steps. I'm realy confused on this one. I get as far as setting it up using the quotient rule then I go blank. thanks

asked by redgy on March 16, 2011
55. math

Braden and Bialy each bought a kazoo for \$0.89. They each paid with a \$1.00 bill. Expalin two different ways to show their change.

asked by grace on January 5, 2015
56. Chemistry

Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.

asked by Anonymous on March 26, 2013
57. vectors

Express the unit vectors iˆ, jˆ, and kˆ as ordered triples and show that: a) iˆ x jˆ = kˆ b) kˆ x jˆ = -iˆ To begin, I subbed in iˆ= (1,0,0) jˆ= (0,1,0) kˆ = (0,0,1) for a) I got (0,-1,1) = (0,0,1) after crossing i x j What do I do next?

asked by luke on May 27, 2018
58. ordering decimals

Ms.Sue could you please show us another exmple i understood 0.6 0.65 0.7 how about with a double digit number like: 0.25_____0.15 or 0.425_____0.475

asked by mom on April 4, 2011
59. English

What is the prepostional phrase and indicate if it is adj or adv? 1) Mrs. Ruggiero loves to show pictures of her 5 grandchildren.

asked by Yukito on February 28, 2010
60. math

Hello I have two questions pleae (1)what does it mean when it says measurement to an 8th of an inch, what will I be doing? (2) can you show me the steps for 10 inches = ________ ft, the answr is 5/6 but how do you get that? Thank you

asked by Patrizia on March 5, 2012
61. math

10.find all the zeroes of the polynomial function f(x)=x3-5x2+6x-30.if you use synthetic division show all three lines of numbers

asked by lexi on October 17, 2018
62. Science/Chemistry

Is this equation balanced? Does it show that no atoms are lost or gained in chemical reactions? 8Fe + S8 --->8FeS

asked by Anonymous on March 18, 2014
63. Science(density)

A brick of salt has a volume of 50cm^3 and a mass of 100 grams. What is its density? Show all calculations.

asked by Sanele on August 31, 2014
64. History

What are 2 things the railroad supplied from the west to other parts of the world ? What technology was used to show that the railway was complete ?

asked by Henry on November 27, 2016

i have to pick a letter, i chose G and make adesin with counters on grid paper and then show a t-chart . how do i do this

asked by MANDY on November 9, 2009
66. chemistry

Can someone show me the answer to this as I am well confused. What mass of lead oxide reacts with 2400dm3 of carbon monoxide?

asked by alastair on March 3, 2015
67. Science

Write the word equation to show the chemical reaction taking place during acid rain?

asked by Raghav on June 21, 2016
68. math (rounding)

Ms sue. can you,please show me how you got that answer. here is the math problem. write in standard form. thirty-six- thousandths.

asked by queeneka on September 28, 2009
69. statistics

3. Prove (not show) that following two methods, long and short respectively, to compute the population variance yield the same result. ? (x i - ?) 2 / n, where i = 1, n ? (x i 2 - (? x i) 2) / n, where i = 1, n

asked by sophia on October 25, 2007
70. Credit Policies and Procedures

Can someone please show me the formula to do an amortization schedule on paper? I have an 8 year loan, for 21,700 with a 6.5% interest rate.

asked by Kim on September 22, 2011
71. Math urgent

If two "fair" dice are tossed what is the probability that the sum of their faces will be a multiple of 3? Show or explain how you got your answer?

asked by Mimi on June 3, 2010
72. Math - Trig

Use the law of cosines to show that the measure of each angle of an equilateral triangle is 60deg. Explain your reasoning.

asked by McKenna Louise on February 6, 2014
73. Chemistry

What is the pH when 25 mL of .20 M CH3COOH has been titrated with 35 mL of .10 M NaOH? I got the answer .0375 but that is incorrect if you could show me steps maybe i can figure out what i did wrong thanks

asked by Mya on November 30, 2010
74. College Statistics

A random variable X has a Gamma distribution with (alpha = a, beta = b). Show that P(X > 2ab) < (2/e)^a. hint: X > c is equivalent to e^Xt > e^ct

asked by Allie on March 30, 2013
75. geometry

In a cyclic quadrilateral show that the sum of the products of the opposite sides is equalto the productof the diagnals. please help me

asked by lily on November 10, 2007
76. math

abc is an isosceles triangle in which ab=ac=5cm and bc=6cm.calculate am,where m is the mid point of bc show your workings?

asked by Olumide on May 12, 2019
77. Calculus

May someone answer this question for me? Thank you! I appreciate it. a.) Use the definition of continuity and the properties of limits to show that the function is continuous on the given interval. f(x)=(2x+3)/(x-2), (2, ∞)

asked by Anonymous on September 15, 2015
78. Chemistry

Calculate the volume occupied by 18g of water vapor at 100C at 1 atm. Show calculations

asked by Alan on December 12, 2009
79. math

a deposit of 4000 at 6.5% for 270 days show amount of interest earned answer 2870

asked by layne brooks on March 11, 2015
80. social studies

show how the wheel metals and tools are important even today in our daily life.draw and write

asked by mohsin on February 13, 2011
81. Probability.. HELP!

At the American Kennel Club, there are 36 dogs entered in a show where there will be a first-, second-, and third- place award. How many possibilities are there for these awards?

asked by Ashley on November 13, 2014
82. The Great Gatsby

Hey!! Could anyone please tell me any gatsby quotes that show American dream is a failure? I'M HAVING TROUBLE FINDING ONE AND I NEED IT FOR MY ESSAY thanks

asked by Me on July 5, 2009
83. geometry

Can someone please show me how to find the centroid of a triangle with a median of 36 units. I know the ratio is 2:1 and the answer is 36. I just do not understand the formula.

asked by Kate on December 2, 2009
84. math help

find the ratio of the volume to the surface area of the rectangular prism shown. L= 4x+8 W= x+2 H= 2x+4 please show all your steps please!!

asked by Sunny on September 16, 2014
85. Englis

remembered watching it the first time, and realizing I’d never seen anything like it, immediately vowed never to miss an episode of the Daily Show.

asked by ROb on June 10, 2014
86. Pre-cal

let P(x)=2x^4-x^3+13^2-8x-24. Use synethetic division to show that x+1 is a factor of P(x) Answer:2x^3-3x^2+16x-24 Then find all real and imaginary roots of P(x)=0.

asked by Jill on January 9, 2010
87. basic electronics

3 resistor in parallel have an equivalent resistance of 1000 ohms. If R2 is twice the value of R3 and trice the value of R1, what is the value of R1,R2 and R3? Please show me the sol'n. n_n

asked by shane on June 14, 2015
88. Analytic Geometry

what is the radius of the circle circumscribing an isosceles right triangle having an area of 162 sq. cm? Show your solutions pls. Thank you!

asked by Nate on June 29, 2016
89. programming

write a programe which calculate the number of five subjects also show the average and grade of the desire total.

asked by rajaa raisani on September 15, 2014
90. Enviromental Science

Show Chemical balance of Sulfuric acid and Calcium hydrozide based on ion charges

asked by Lisa on March 2, 2010
91. CHEMISTRY

USING DOT (.) AND CROSS (x) DIAGRAM SHOW THE BONDING IN THE COMPOUND FORMED WHEN HYDROGEN AND OXYGEN COMBINE

asked by STEPHEN on July 3, 2016
92. science

using the numerical scale, one foot on the map would equal how many miles on earth's surface? show how you got your answer?

asked by Anonymous on October 16, 2008
93. Chem

A 50 ml sample of 0.025M AgNo3 is mixed with 15 ml of 0.04 M CrCl3. How many grams of AgCl will precipitate? Please show steps

asked by MAX on October 9, 2010
94. Calculus

If an isosceles triangle has a fixed perimeter P, find the dimensions that maximize that area. Show how you know that it is the maximum.

asked by Katie on December 11, 2016
95. Art-Painting

Ms. Sue, How to draw the spring scenery? Or you can show me the website where can i find this drawing (including photos) Thank you

asked by Jahanara on December 10, 2014
96. Economics

3q2+5q+300 Find the marginal and average cost functions. Show that AC is at its minimum when q = 10 and that MC = AC at this output

asked by cb on October 25, 2009
97. math

on tv show contestant is asked to select a door and is rewarded wigh \$40,000 or \$3, or \$50 what is expected value of the selecion

asked by Anonymous on October 10, 2009
98. Chemistry

Using chemical equations, show how the triprotic acid H3PO4 ionizes in water. Phases, such as (l) or (aq), are optional.

asked by Debbie on January 26, 2013
99. bio

what is the formula for the optimal sex ratio in a hamiltonian population? What are some real organisms that show this adaptation?

asked by Anonymous on November 11, 2010
100. algebra

Need help with this one write an explicit formula for the sequence 1/2,3//7,1/3,5/19,3/14 then find q14 I don't know how to set this up can someone please show me how this one works

asked by lee on February 5, 2013