# 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 70
1. ## math

graph the function below. Determine the domain, range, and horizontal asymptote. show work f(x)=(7/5)^(x-3)

asked by Sara on January 11, 2012
2. ## statistic

rank the following in increasing order and find the position and value of the 11th percentile show all work. 7 5 3 2 9 6 4 3 8 5 5 8

asked by janet on October 12, 2010
3. ## calculus--please help!!

Graph the function using transformations show your work and state. A. the domain b. the range c. the asymptotes f(x)=4-1/(x+6)^2

asked by Sammy-please help!!!! on December 18, 2012
4. ## statistics

rank the following in increasing order and find the position and value of the 91st percentile show all work. 4,,5,4,9,9,1,0,7,4,8,0,9

asked by mary on October 11, 2010
5. ## algebra

Write the equation of vertical the line through LaTeX: (-4,-12) ( − 4 , − 12 ) in standard form. Show all of your work.

asked by Woody on January 28, 2019
6. ## Chemistry

Balanced ionic equation for ClO + Fe(OH)3 = Cl + FeO4. Show electron balance and work

asked by BJ on April 2, 2011
7. ## Algebra 2

More About Complex Numbers Find the conjugate of each number. 1.)squ root of 3-7/8i 2.) 2-mi 3.) 6 Please show work I need help

asked by Alicia on November 18, 2014
8. ## math

Calculate the following, leaving your answer as a fraction (lowest) or in decimal form. Show work. 8(2+3)² ------- 2(5)²

asked by kasey on September 17, 2013
9. ## math please help

Evaluate the following expressions show all your work. A.11^0 B.11^2/11^2 C. Are the answers to both parts the same? Why or why not? Please help me I'm really stupid in math and I can't figure these out?

asked by hopeless on May 19, 2015
10. ## Geometry

How do you use slopes to write the proportion to find the value of x for this problem... (4,5), (1,2), (x,0) please show your work and explain thx

asked by Katia on December 5, 2016
11. ## Calculus Help!!!!!

sketch the graph of the following. Show all your work and include all the important points and asymptotes. also find y' and y'' ? y= (x^3)/(x+1)^2

asked by Tim on April 16, 2014
12. ## chemistry

Balanced equation for Oxidation-Reduction reaction for Ho2 + Cr(OH)3 = CrO4 + OH. Please show your work

asked by Danyelle on April 2, 2011
13. ## Algebra 2

Multiplying or dividing rational expressions 6x^2 + 13x - 5 divide by 6x^2 -23x + 7 Need to show my work.

asked by Robert on February 22, 2015
14. ## College Algebra

Graph the function using transformations. Show your work and state a) the domain b) the range c) the asymptotes f(x) = 3 - 1/(x + 4)^2

asked by Kameesha on August 5, 2012
15. ## Math

What factors will give a product of 42? Show your work with repeated addition and with equal groups

asked by Nick on January 13, 2013
16. ## calc

determine the intersection pints of the graphs of the equations y=x^3-4x y=-x-2 I dont understand this please show all work.

asked by Jeniffer on May 8, 2017
17. ## math

write the expression as a sinle logarithm. express powers as factors. In (x/x-1)+In(x+1/x)-In(x^2-1) Please show work.

asked by Austin on January 3, 2013
18. ## Chemistry

How many molecules of hydrogen gas are formed when 24.6 g of sodium are added to water. Please show work.

asked by Brianna on January 16, 2019
19. ## math

show work If the bill at a restaurant including 155 tip is \$65.32. What was the cost of the meal alone?

asked by shanae on November 6, 2007
20. ## chemistry

Calculate the formla charge on each non-hydrogen atom in eachof the following molecules (show your work)

asked by ben on January 18, 2011
21. ## Physics

A person is travelling 6 km (E) then 4 km (N) and finally 2 km (W). Calculate the average speed And velocity. Show your work

asked by Mika on March 4, 2014
22. ## Math

What are the like terms in the exprression 3ac = ab - ac = 2ab? Explain. Simplify the expression. Show your work.

asked by Maddy on September 2, 2008
23. ## maths plz help

Find the directional derivative of: âˆ…=(x+2y+z)Â²â€”(xâ€”yâ€”z)Â² at the point (2, 1, -1) in the direction of A=iâ€”4j+2k. Plz help show me work

asked by ... on December 1, 2016
24. ## math

how far will the bike travel if the wheel makes 5 revolutions? the diameter is 40cm. show work

asked by makyla on February 19, 2009
25. ## Algebra 2

Quadratic systems x^2+y^2=10 2y+y=4 the first part I got this x^2+(4-2x)^2=10 and I don't know what steps comes next. could you show work on how to do it I'm so confuse on this problem.

asked by miguel on November 22, 2014
26. ## Calculus

The function h(x) = x^3+bx+d has a critical point at (2,-4). Determine the constants b and d and find the equation of h(x). Show your work.

asked by Daniel on January 2, 2015
27. ## Calculus (Urgent, please)

Find the area of the region enclosed by the intersection of the circle x^2+y^2=4 and the parabola y=x^2. Show work

asked by Alice on April 19, 2016
28. ## math

Determine if each function is even, odd or neither. Show all work and include an explanation of any symmetry that exists. A) y = x^4 + 4x^2 B) y = 3x^3 - x - 3 C) y = x^5 - x^3 + x D)y = 3

asked by liban on June 9, 2012
29. ## chemistry

if 40g of KNO3 is dissolved in 100ml water at 25 C WHAT WILL FINAL TEMP BE? SHOW ALL WORK

asked by sara on November 2, 2015
30. ## math

a circular coin has radius of 8.2 what is the circumference rounded to the nearest tenth? please show work

asked by daisy on March 1, 2011
31. ## Pre-Algibra

Find the radius of a cone with a height of 14 cm and a volume of 718.4 〖cm〗^3, use 3.14 for X and remember to show all work

asked by Autumn on February 1, 2016
32. ## algebra

WRITE THE SLOPE INTERCEPT FORM OF THE LINE SHOWN IN THE GRAPH. WHICH IS (5,-7)(4,7) PLEASE SHOW WORK

asked by Lee on July 15, 2012
33. ## Algebra

Write the slope intercept form of the equation of the line,and graph it .Show work...(-3,-5)(6,1)

asked by sherry on March 16, 2012
34. ## precalculus

given the function y=2-log(x) find domain, determine vertical asymptote and show work.

asked by Sara on January 9, 2012
35. ## AP Calculus

Show work to determine if the relation is even, odd, or neither. 1. 3x=|y| (|y|=abs. value of y) Simplify the following complex fractions. 2. [(3/x)-(4/y)]/[(4/x)-(3/y)] PLEASE HELP!

asked by Anon on July 12, 2013
36. ## Algebra

Find the coordinates of the vertices of the figures formed by y -< x + 2, x + 2 -< 6, and y >- -2 A)(0,0),(2,4),(8,-2) B)(-4,-2),(2,4),(8,-2) C)(-4,-2),(4,2),(8,-2) D)(-2,-4),(2,4),(8,-2) I chose B this one confused me this is all the work to show: -2 -<

asked by Jon on February 17, 2008
37. ## Math

Simplify each expression and state any non-permissible values. (4 marks - show your work) (4x-1)/(x^2+7x+12)divided by (2x-1)/(x^2+x-12)

asked by Alex on January 10, 2015
38. ## pre calc

Can someone please help me f(x)=1/3 square root 1-2x and g(x)= (x-2)/x. Find and simplify (g of g)(3)/(g of f)(-24). The answer I got it -24/7 and i Am unsure If it is correct. Please show all work Thank you

asked by Marie on February 5, 2017
39. ## physics

What is the period of the hand on a clock that measures the minutes? What is the frequency? Please show work, Thank you, Abbie

asked by silly on May 2, 2011
40. ## Math

10. Estimate 30% of the student population. You must show all of your work and provide an explanation. *There are 850 students.

asked by Ariana on October 26, 2014
41. ## math

Determine if each function is even, odd or neither. Show all work and include an explanation of any symmetry that exists. A) y = x^4 + 4x^2 B) y = 3x^3 - x - 3 C) y = x^5 - x^3 + x D)y = 3

asked by liban on June 11, 2012
42. ## Math (Elementary Algebra)

What is the value of the expression 2x^2 + 3xy - 4y^2 when x = 2 and y = -4 ? Please help this is for my accuplacer. If you could show your work explaining how you got the answer that would be awesome. Thank you in advance

asked by Leah on April 18, 2016
43. ## Math

Find the last two digits of the number 11^2016 . I need to figure out how to hand do this and show all my work. Help pls

asked by Anonymous on October 3, 2016
44. ## Algebra 2

Find all of the zeros of each function 1. q(x)=2x^3-17x^2+90x-41 2.x^3-5x^2-7x+51 3.x^4-9x^3+24x^2-6x-40 Please show work!!! I want to learn how to do it.

asked by Alicia on January 17, 2015
45. ## math

I am already weak at math, but when they throw in letters it throws me off and confuses me more... can someone please show me how to work this problem? Ax+Hy=L,for x.

asked by Anonymous on September 24, 2009
46. ## properties

Apply the properties discussed in this section to simplify each of the following as much as possible. Show all work. I don't know how to do these problems. 4x-2-3x 4x-(2-3x)

asked by heaven on August 16, 2009
47. ## 5th Grade Math

Need to show my work for the following: 646,505,712,103 divded by 72. Am having such a hard time please help.

asked by Ryan on November 12, 2012
48. ## math

State whether the lines are parallel, perpendicular, or neither. Show your work.x–5y=103 and –2x=–206–10y i got neither is that right

asked by allie on October 21, 2016
49. ## statistics

According to Chebyshev’s theorem, what proportion of a distribution will be with k=4 standard deviations of the mean? Show all work as to how to find this

asked by sharon on September 4, 2017
50. ## Pre calculus

1. Write in terms of cos and sin function. cotx*secx Show work.

asked by Bimo on April 18, 2016
51. ## Math

Pier one had a sale-buy two for \$ 12 EACH and get the third free.how much would she spend to get 15 beanbag chairs? Need to show work

asked by Yug on April 8, 2015
52. ## statistics

Find the (two) z-scores that bound the middle 40% of the standard normal distribution. please show the work.

asked by tina on November 26, 2011
53. ## calculus

The volume of a right circular cone is given by V=(1/3)3.14r^2*h, where r is the radius and h is the height. Find dV/dt if r=4, h=5, dr/dt=6, and dh/dt=-3 Please try to show as much work as possible

asked by Anonymous on March 6, 2008
54. ## math

Inverse of h(x)=7-9cos(-(x+1)). h^-1(x)=? show work please! Thanks.. also accidentally put this as an answer somewhere pls ignore that!

asked by sophie on September 29, 2016
55. ## science

determine the weight of an object if its mass is 68kg and the pull of gravity is 9.8 m/s^2. someone please help me an show the work please

asked by spookie on May 11, 2011
56. ## Chemistry

Calculate the mass of sodium bicarbonate needed to neutralize 3.0 mL of 3.0 M HCl. Show your work.

asked by Dan on March 2, 2011
57. ## Calculus AB

Evaluate the indefinite integral of (ln(x))/(x + xln(x)) dx by using variable substitution. Show all steps of your work.

asked by Simone on February 29, 2012
58. ## chemistry

2Na+2H2O-->2NaOH+H2 what is the mass of reactant left over? pls show work too thank you

asked by help pls on November 26, 2016
59. ## Minimum and maximum value

Let f(x) be a decreasing the function defined for x>or=0 and f(2a^2+a+1)

asked by Collins on January 6, 2016
60. ## Algebra 2 Urgent! please Help!

simplfy (10x^2-6x-x^3)+(9x+x^3+5x^2) please show all work and steps i have been working on this problem for 10 minutes and still cant figure out how to do it.

asked by Tristan on September 14, 2010
61. ## Science

An apple has a volume of 10ml and a mass of 0.8g. Will it sink or float in watee and I need to show my work

asked by jay jay on October 29, 2015
62. ## Repost Math for Steve Dowling

Math - steve dowling, Thursday, September 13, 2007 at 8:44pm what is -5/18 (8/15)= Can you show the work Thanks

asked by Ms. Sue on September 13, 2007
63. ## math

What are the measures of the angles of a right triangle with side lengths of 1, 2, and sqroot of 2? please show/explain work

asked by bob on November 7, 2010
64. ## algebra

Simplify the rational expressions. State any excluded values. Show your work. 8.3x-6/x-2 9.x-2/x^2 +3x-10 pleaasee.

asked by Alex on November 28, 2017
65. ## calc

differentiate y=ln(x^5-e^x) Please show the steps in solving change it to y=ln u dy/dx= dy/du * du/dx and of course, dy/du= 1/u I will be happy to critique your work. 1/4x * 4/4x = 4/x Is this correct?

asked by quita on April 11, 2007
66. ## Physical Science

You are driving. You have enough gas in your tank to go 50 miles. The next town is 72 kilometers away. Can you make it? Show work.

asked by Belle on September 17, 2014
67. ## Algebra

I don't understand this problem at all. Use the formula d=rt. Find t for r=46.6m/h and d=456.68m. Show your work.

asked by Peach on May 23, 2015
68. ## Chemistry

Calculate the mass of sodium bicarbonate needed to neutralize 3.0 mL of 3.0 M HCl. Show your work.

asked by Dan on March 2, 2011
69. ## algebra

i have to write a number in the block to make this true how do i get the answer for 70-30=40- please show me a example so i can complete my work

asked by avonia on May 22, 2012
70. ## Math

I'm not sure how to arrive at my answer. Convert 1.745 * 10 ^-5 m^3 to pints How would you show the work for that because my conversion are wrong.

asked by John on September 23, 2015
71. ## Calc

The function j(x)=sqrt(x+1)+b/x^2 has a critical (turning) point at x = 3. Determine the value for the constant b. Show your work.

asked by Anonymous on May 29, 2019
72. ## statistics

According to Chebyshev's theorem, what proportion of a distribution will be within k = 4 standard deviations of the mean? Show all work as to how to find this.

asked by sharon on May 2, 2018
73. ## Math

Just need help to start this problem. Given f(x)=x^3+3x+1 is one to one. Without actually determining the inverse function f^-1, compute the following (show and discuss your work. f^-1(-3)

asked by Mekhia on February 22, 2017
74. ## Geometry

Find the length of the side A’B’ for the congruent triangle. C = 28 degrees A = 14 Must show work with answer.

asked by Boo on February 20, 2014
75. ## Math

IN a square with each side measuring 6inches what is the ratio of the perimeter to the area? Please show work for this!!

asked by Alyssa on April 9, 2012
76. ## Math

MULTIPLY. WRITE EACH PRODUCT IN SCIENTIFIC NOTATION. 24.) (3 * 10^6)(2 * 10^12) 26.) (6 * 10^9) (5 * 10^4) Can you please show your work so I can get a better understanding of these problems?

asked by InDireNeedOfHelp on June 6, 2014
77. ## Algebra 2

(192x^2y+72x^3)-(24rxy-9rx^2) I need help factoring completely in groups and can you please show all your work thank you

asked by Steph on November 6, 2014
78. ## Algebra

The function H(t) = -16t2 + vt + s shows the height H (t), in feet, of a projectile launched vertically from s feet above the ground after t seconds. The initial speed of the projectile is v feet per second. Part A: The projectile was launched from a

asked by Ashlee on April 17, 2016
79. ## Pre-Calc

Could someone show me how to solve these two problems-I have 10 of each kind to do this weekend and I'm really lost 1. Find product of 8(cos pi/2 + i sin pi/2) * 1/2(cos pi/6 + i sin pi/6) 2. Same problem but find quotient instead of product Please someone

asked by Tammie on October 8, 2011
80. ## Algebra re-posting

I already typed this in 2 days ago, but i did not get to see if I had an answer back, can somebody help me to the link, or can help me do the work, I found the answer using the trial and error method, but is there another way to find it without using the

asked by Hailea on April 24, 2008
81. ## Chemistry, #5

For propanioic acid, HC3H5O2, Ka=1.3 x 10^-5, determine the concentration of the species present, the pH and the percent dissociation of a 0.21 M solution. Do this for H+, OH-, C3H5O2-, HC3H5O2, and the pH and percent dissociation. If someone can please

asked by Taasha on August 4, 2007
82. ## Physics

What is the energy from a hollow cylinder of surface charge density sigma, radius R and charge q? Energy? DO you mean E, the electric field intensity? If you mean Energy, it is an odd question, but the answer is that it is the work it took to put the

asked by Mary on October 23, 2006
83. ## Programming

Hello All i am new in dynamics Ax when i am going to connect the C# with Dynamics Ax using logon method i am getting the following error when connecting with DynAX from the it's own server so it connects but when i want to connect it from client computer

asked by ajmal on February 5, 2013
84. ## Chemistry

For the system, H2(g) + X2(g) 2HX(g), Kc = 24.4 at 300 K. A system was charged with 2.00 moles of HX in a 3.00 liter container. The catalyst was introduced using a remote unit, and the system was allowed to come to equilibrium. How many moles of H2(g) will

asked by Val on July 20, 2016
85. ## math

Can someone help me please? I have 4 equations that need to be matched up to different graphs. I need to know how to work the equations so I can match them to the graphs. 6y>15-3x 5x-3=2y -x y+x

asked by barbHELP!!!! on September 18, 2010
86. ## Algebra I

A local gym charges nonmembers \$8 per day to use the voleyball courts. Members pay a yearly fee of \$150 and \$2 per day to use the voleyball courts. Write and solve an equation to find how many days you must use the voleyball court to justify becoming a

asked by katya on September 20, 2009
87. ## Chemistry

What is the molarity of the final solution if 2.00mL of the 5.00 M stock solution is diluted to 10.00mL to make solution A? Solution A then undergoes a second dilution by taking 3.00mL solution A and diluting it to 25mL.

asked by Chem on November 15, 2016
88. ## calculus

hey everyone i hate having to ask for help but i had an allergic reaction of a sort and just got out of the hospital,which means i have a lot of make up work.I will help you with anything as soon as i got mostly caught up i have a week to get all my work

asked by lula on February 25, 2019
89. ## math

Lucia is hoping that Angela will buy her a geometrically interesting piece of land on which he will build a mansion. Lucia has said that she will only buy the land if it costs less than \$4.00 per square foot. The plot shown below is listed for \$453,175. Is

asked by Timothy on May 2, 2016
90. ## physics thermodynamics

A gas expands from a volume of 2.00m^3 to 6.00m^3 and does 6912 joules of work against a constant outside pressure. Calculate this outside pressure in Pa. The answer is 1730 Pa, but I don't know how to get that. I honestly have no idea where to start or

asked by emily on February 11, 2007
91. ## pre-calc

I am trying to get the polynomial; x^7+2x^6+3x^5+4x^4+6x^3+6x^2+7x+8 divided by; x^5-2x^4-3x^3+5x^2+2x-3 into a partial fraction form so that I can create a system of equations to solve for. So far, after dividing I have (x+1)(x-1)^2, and (x^2-x-3) as

asked by John on May 29, 2009
92. ## *re-Calc

I am trying to get the polynomial; x^7+2x^6+3x^5+4x^4+6x^3+6x^2+7x+8 divided by; x^5-2x^4-3x^3+5x^2+2x-3 into a partial fraction form so that I can create a system of equations to solve for. So far, after dividing I have (x+1)(x-1)^2, and (x^2-x-3) as

asked by John on May 29, 2009
93. ## probability and statistics

Let Θ1, Θ2, W1, and W2 be independent standard normal random variables. We obtain two observations, X1=Θ1+W1,X2=Θ1+Θ2+W2. Find the MAP estimate θ^=(θ^1,θ^2) of (Θ1,Θ2) if we observe that X1=1, X2=3. (You will have to solve a system of two linear

asked by AAA on April 1, 2017
94. ## algebra

For me to solve the system of equations for the total cost of lawn care using the tequnique substitution am I right to say: c=\$200+\$50h c=\$300+\$25h would be c=\$250 c=\$325

asked by Sylvia on March 15, 2011
95. ## Analytical chemistry

A 25.0-mL solution of 0.0660 M EDTA was added to a 33.0-mL sample containing an unknown concentration of V3 . All V3 present formed a complex, leaving excess EDTA in solution. This solution was back-titrated with a 0.0450 M Ga3 solution until all the EDTA

asked by Ashley on April 4, 2013
96. ## math

In recent years, Juresic Transportation purchased three used buses. Because of frequent turnover in the accounting department, a different accountant selected the depreciation method for each bus, and various methods were selected. Bus Acquired Cost

asked by vivian on November 6, 2010
97. ## business

In recent years, Juresic Transportation purchased three used buses. Because of frequent turnover in the accounting department, a different accountant selected the depreciation method for each bus, and various methods were selected. Bus Acquired Cost

asked by vivian on November 6, 2010
98. ## chemistry

A is a solution of trioxonitrate(v) acid, HNO3, of unknown concentration. B is standard solution of sodium hydroxide containing 4.00g per dm3 of solution. 25cm3 portions solution B required an average of 24.00cm3 of solution A for neutralization, using

asked by oward on May 24, 2016
99. ## Sri sankara global academy/ Chemistry

A food scientist also tested some ethanoic acid solution. Ethanoic acid is the acid which is found in vinegar.His results are shown below. vinegar ethanoic acid Volume used/Cm3 50 10 volume of NaOH needed to neutralise/cm 30 10 The ethanoic acid solution

asked by vidya on March 24, 2016
100. ## Chemistry

Determine the identity of an unknown solution that formed a yellow precipitate with solution 1, No Reaction with solution 2, No Reaction with solution 3, and a canary yellow solution with solution 4?

asked by Tiffany on May 1, 2012