# 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

91,330 questions, page 108
1. ## Math

A watch cost \$75.99. If the sales tax rate is 6.25%, what is the amount of sales tax? Please show work or the explanation you used!

asked by Jennie on May 28, 2011
2. ## Physics

A 12 kg barrel is pulled up by a rope. The barrel accelerates at 1.2 m/s2. Find the force exerted by the rope. Show all your work.

asked by Pat on November 21, 2011
3. ## Math

Mr.Mike wants to leave the waitress a 12% tip. Estimate the tip if he should leave if the family's bill is \$32.46. Please show ALL WORK.......THANK YOU!!!!! :)

4. ## pre-calc

(1+tan x)^2= 2 tan x+2 please show all work

asked by Haley on November 20, 2012
5. ## Fashion

(x to the second power-3x+2)and (5x to the second power-3x-8)= Show all work

asked by Rafael on January 8, 2011
6. ## general chem

Using the activity series (Table 4.5), write balanced chemical equations for the following reactions. If no reaction occurs, simply write NR. (a) Nickel metal is added to a solution of copper (II) nitrate; (b) a solution of zinc nitrate is added to a

asked by rob on October 9, 2011
7. ## Algebra - HELP!!!

Can someone help me and check these? 1. Graph the function and identify the domain and range. y = –.5x² (1 point)graph *domain: (–∞, ∞) range: [0, ∞) graph domain: (–∞, ∞) range: (–∞, 0] graph domain: (–∞, ∞) range: (–∞, 0]

asked by Sandy on April 22, 2014
8. ## Physics

An object of mass .550kg is lifted from the floor to a height of 3.5m at a constant speed. How much work is done by the lifting force (include units)? b.) How much work is done by the Earth on the object? c.) What is the net work done on the object? d.)

asked by Tim on December 9, 2012
9. ## English

I left out the following sentences. Thank you very much, Writeacher. 1) I think everybody would work at a passion but many times (mistake) this is often not possible. 2) If I worked, I would work at a job because I'll need (I need) to put aside money for

asked by Matthew on April 11, 2012
10. ## statistics

12) The regression equation Credits = 15.4 - .07 Work was fitted from a sample of 21 statistics students. Credits is the number of college credits taken and Work is the number of hours worked per week at an outside job. A) Interpret the slope. B) Is the

asked by kim on September 27, 2010
11. ## Math Homework

I'm really confused on how to do this. Can someone show me step by step on how to solve this? The directions say to use the Sum-to-Product formulas to find the exact value of the expression. sin 5pi/4-sin 3pi/4

asked by Rachel on February 3, 2015
12. ## math

Are the two solutions to x (2x+1) = 1 found by setting x = 1 and 2x + 1 = 1? Explain your reasoning. What are the solutions to this equation? Show how you arrived at your answer. Create an equation for your classmates to solve that requires factoring.

asked by b on July 3, 2014
13. ## Calc

y=ln(x+1) +ln(x-1) find dy/dx I have trouble with this problem since i'm not that familar with finding the derivative when they involve ln. Please show me how to solve this problem. I should have gotten 2x/(x^2-1) The derivative of ln(x) is 1/x So, you

asked by Brian on January 18, 2007
14. ## Chemistry

A solution is prepared by pipetting 5.00 mL of 0.0983 molar HCl into a 100.0 mL graduated cylinder, and adding enough water to prepare 50.0 mL of solution. 1.The concentration of this solution is ____________M 2.The pH of this solution is ____________

asked by Megan on March 23, 2017
15. ## Chemistry

A is a solution of hydrochloric acid containing 3.650g of HCl in 1dm3 of solution. B is a solution of impure sodium carbonate. 25cm3 of B require 22.7cm3 of A for complete reaction. Given that 5.00g of impure B was dissolved in1dm3 solution,what is the

asked by Victor on February 23, 2017
16. ## Chemistry

A solution contains an unknown mass of dissolved barium ions. When sodium sulfate is added to the solution, a white precipitate forms. The precipitate is filtered and dried and found to have a mass of 258 mg. What mass of baium was in the original

asked by Beth on April 12, 2012
17. ## Chemistry

A 10.0 mL sample of supernatant liquid from the system described by equation 1 was titrated with 0.01022 M EDTA solution to an end-point at 16.90 mL. Titration of the blank gave a titre (end-point) at 1.45 mL. Determine the titration volume required to

asked by Mara on November 17, 2015
18. ## Chemistry

Complete this table of values for four aqueous solutions at 25 °C. Solution A: [H+]=0.0093M [OH-]=? pH=? pOH=? Solution B: [H+]=?[OH-]=1.4e-6M pH=? pOH=? Solution C: [H+]=?[OH-]=? pH=5.36 pOH=? Solution D: [H+]=?[OH-]=? pH=? pOH=10.14

asked by Help on October 20, 2011
19. ## Chemistry

Complete this table of values for four aqueous solutions at 25 °C. Solution A: [H+]=0.0093M [OH-]=? pH=? pOH=? Solution B: [H+]=?[OH-]=1.4e-6M pH=? pOH=? Solution C: [H+]=?[OH-]=? pH=5.36 pOH=? Solution D: [H+]=?[OH-]=? pH=? pOH=10.14

asked by Help on October 20, 2011
20. ## Nuhu Bamali Poly zaria Nig

Chemistry volumetric analysis. B is a solution of Na2CO3 containing 5g/dm3. A is a solution of oxalic acid of uknown concentration 25cm3 of 25.25,25.0 and 24.80 respectively (I) Calculate the average volume of acid used (II) The molar concentration of

asked by usman mB on August 25, 2014
21. ## Health

You work in the hospital's health information management department. Part of your job is to assist the medical residents with completing records documentation. One of the residents complains that he doesnt understand why insurance ccompanies need so much

asked by Anonymous on September 29, 2008
22. ## Mechanics

A 1000-kg car whose motor delivers a maximum power of 40.0 hp to its wheel can maintain a steady speed of 130 km/h on a horizontal roadway. How large is the friction force that impedes its motion at this speed? Show the solution and answer

asked by Jason on September 15, 2013
23. ## Kim

In an experiment to show the relationship between substrate concentration and activity of enzymes, why do we add a 0.5 of a 5 pH buffer solution to the enzyme test groups? the test tubes that we use to stop the reaction at specific times are basic

asked by Bio on September 20, 2014
24. ## chem

if a 10cm cube pipette were not available, which one of the following would be the best way of measuring a 10cm cube portion of a solution? a. weigh 10 times the mass of 1cm cube of the solution. b. weigh 10g of the solution. I think this is a trick

asked by minerva on December 22, 2006
25. ## English

Improving Your Writing. Section 1 Facts and Figures that define the problem (the cause) Details that show the impact of the problem (effects) on Jack, Ruth, and the company. Section 2 The steps needed to change the situation Reason to implement each step,

asked by Mamaw on January 16, 2012
26. ## English

Can someone please me with this. Improving Your Writing. Section 1 Facts and Figures that define the problem (the cause) Details that show the impact of the problem (effects) on Jack, Ruth, and the company. Section 2 The steps needed to change the

asked by Mamaw on January 17, 2012
27. ## Calculus

How do you take the limit of a composite piecewise function f(f(x))? Only the graph is given. lim f(f(x)) x->2 I figured the way to do it was to find the lim f(x) = C then find lim f(x). x->2 x-> C The simple questions on Khan academy's "Limits of

asked by Robert on May 22, 2018
28. ## MATH! HELP!!!

I am putting < for the square root abbreviation. I don't know how to use it on my comp. 3

asked by Andrea on February 22, 2007
29. ## Chemistry

Find the pH and pOH of a solution that is 1.04x10^-4 M HCl. Do i have to use an ice table to solve this? or is there a short cut? please help No. HCl is a strong acid (100% ionized), so the H^+ concentration is 1.04 x 10^-4 M.

asked by T on July 4, 2007
30. ## math

how do I solve this problem 2x/2=(6-3y)/2? 2x/2=(6-3y)/2? I solved it for you in my initial answer. The 2 in the numerator cancels with the 2 in the denominator on th left side and x = (6-3y)/2 which is the solution of the initial equation you had for x in

asked by cheryl on March 17, 2007

The boiling point elevation of a solution consisting of 2.12 g of a nonvolatile solute in 97.4 g of benzene is 0.6602 oC. What is the molecular weight of the unknown solute? i have no idea how to solve this question

asked by jerry on February 13, 2009
32. ## ml algebra

Solve the equation x2 = 81 by finding square roots. *NOTE: Applicable to this and all other questions--For any solution that involves two answers, type one answer separated by a comma and then the other answer

asked by ange on May 25, 2009
33. ## Math

Hi. So we had a long test with this question.. I was wondering how to solve it? Coz our teacher didn't discuss the answers.. and most probably we'll have the same type of question during midterms.. Find the Solution Set 9/|2-5x| - 4/y^2-3y = 5 2/|2-5x| +

asked by Jen on August 17, 2011
34. ## algebra 3

which number is a the solution of the equation [5x-2] = 8? a.}6/5 b.}1/2 c.}negative 6/5 d.}negative 1 Is this [5x - 2] supposed to represent absolute value of 5x - 2 ? If so, set up two equations: 5x - 2 = 8 and 5x - 2 = -8 Solve each and see if one of

asked by Darius Graham on January 11, 2007
35. ## Chemistry

Does anyone know how to do this problem, i can't seem to solve it. If 39.25 g of a substance is dissolved in 155.5 g of benzene solvent, the freezing point of the solution is 0.08 oC. Calculate the apparent molar mass (g/mol) of substance.

asked by SuSu on February 2, 2010
36. ## Chemistry

Calculate the molar solubility of MgCO3 in a solution that already contains 1.7×10−3 M sodium carbonate. MgCO3 Ksp = 6.82 x 10-6 IMPORTANT NOTE: You must use the quadratic equation to solve this problem. (DrBob222- thank you so much for all your help!)

asked by Chloe on April 26, 2013
37. ## Operations Management

Consider the following system: -> 0.73 -> 0.73 -> Determine the probability that the system will operate under each of these conditions: (Round your final answers to 4 decimal places, not your intermediate calculations.) a.) The system as shown b.) Each

asked by Grace on March 6, 2016
38. ## Simplifying Rational Expressions

Alright I believe i got it right this tim(They should be typred out correctly).Can someone solve these for me 1.(4x-12)/4x 2.(d+7)/(d^2-49) 3.(t^2)-25/(t^2+t-20) 4.(2x^2+6x+4)/(4x^2-12x-16) 5.(6-y)/(y^2-2y-24) We do not do your work for you. Find the

asked by mike on May 16, 2007
39. ## Math

The followoing question comes from my Algebra II book and it goes like this: Thirty percent of the sulfur desiccated. If 42 tons did not disccate, how much sulfur was there in all? How do I solve this problem? All work has to be shown.

asked by Crystal on February 14, 2010
40. ## Math

If n+1 is the largest of four consecutuve integers, represent the sum of four integers. A 4n+10 B 4n-2 C 4n-4 D 4n-5 E 4n-8 I really don`t understand this question so I can`t provide my work. Can someone please explain to me how to solve these types of

asked by Tamila on April 16, 2016
41. ## integral calculus

pls solve this problem using integration.. A Force of 25N is required to stretch a string from natural length of 12cm to 13cm. Find the Work done in stretching it from 13cn to 14cn. Thanks a lot :)

asked by Akitsuke on October 7, 2008
42. ## Chemistry

A sample of 9.4 grams of NaOH is dissolved into 693 mL of aqueous 0.250 M NaOH (assume no volume change). This solution is then poured into 2.37 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in the

asked by May on October 11, 2010

A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we

asked by Otto on March 25, 2011
44. ## math,correction

Is this correct now. Problem #1 solve by completing the square. 2x^2+8x+3=0 My answer: x=-2 +/- sqrt (5)/(2) Problem #2 solve by using the quadratic formula 5x^2+3x+1=0 My answer: No solution are defined. You are not completing the square. 2x^2+8x+3=0 x^2

asked by jasmine20 on April 22, 2007
45. ## Chemistry (A level)

I was given a Chemistry question on the titration of a strong base being added to a weak acid. The question was: "Calculate the pH in a titration when 10.0cm^3 of a 0.10moldm^-3 solution of NaOH is added to a 10.0cm^3 of 0.25moldm^-3 solution of ethanioc

asked by Benjy on December 6, 2008
46. ## Algebra

Solve -3x-5 is greater than or equal to 16 Would the solution be x is less than or equal to -7?

asked by Anonymous on October 13, 2009
47. ## Physics - Grade 12

I've been doing extra questions for physics, but these four are still giving me trouble. Please help me solve them, including Free Body Diagrams if possible. 1. If a curve with a radius of 60m is properly banked for a car traveling at 60km/hr, what must

asked by Joe Seppe on April 21, 2008
48. ## Physics

a skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we

asked by Otto on March 24, 2011

a skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we

asked by Otto on March 24, 2011

A skydiver is subject to two forces: gravity and air resistance. Falling vertically, she reaches a constant terminal speed at some time after jumping from the plane. Since she is moving at a constant velocity from that time until her chute opens, we

asked by Otto on March 24, 2011
51. ## Physics

An inclined plane is on a table 1.4m tall. A 6kg box is hanging vertically attached to a 2kg mass on a plane with an unknown incline plane with coefficient of sliding friction of .2 . a. determine the acceleration of the system. b. if the plane is 3.5m

asked by Mitch on December 10, 2010
52. ## Math

A college student decides that school work limits him to a total of no more than 36  hours per week at his two part­time jobs. He earns \$6 per hour hanging wall paper and

asked by T-perry on February 21, 2013
53. ## chemistry

A 1.147 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.690 grams of KI and 50.00 mL of a 0.00821 M KIO3 solution. The excess I3– was

asked by Lana on April 17, 2013
54. ## chemistry

A 1.857 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.540 grams of KI and 50.00 mL of a 0.00912 M KIO3 solution. The excess I3– was

asked by Sparkle on May 2, 2013
55. ## Chemistry

Aqueous sulfurous acid (H2SO3) was made by dissolving .200L of sulfur dioxide gas at 19 degrees C and 745 mmHg in water to yield 500mL of solution. the acid solution required 12mL of sodium hydroxide solution to reach the titration end point. what was the

asked by Missy* on October 7, 2010
56. ## Chemistry

A biochemical engineer isolates a bacterial gene fragment and dissolves a 11.8 mg sample of the material in enough water to make 36.1 mL of solution. The osmotic pressure of the solution is 0.340 torr at 25°C. (a) What is the molar mass of the gene

asked by Stevi on February 16, 2013
57. ## Chemistry

A 2.304 gram sample containing an unknown amount of arsenic trichloride and the rest inerts was dissolved into a NaHCO3 and HCl aqueous solution. To this solution was added 1.500 grams of KI and 50.00 mL of a 0.00912 M KIO3 solution. The excess I3– was

asked by Jessica on April 16, 2013
58. ## chemistry

0.5g of fuming h2s04 oleum is diluted with water. This solution is completely neutralized by 26.7ml of 0.4N naoh. Find the percentage of free s03 in the smaple solution. The answer 20.6% Assume that 50ml of 0.01M edta solution were added to 25ml of

asked by Fai on March 3, 2013
59. ## orgolab

plz help! don't understand problem at all. The solubility profile of tartaric acid in water is given in the following table. Temperature (C) Solubility (g/100 mL of water) 0 115 10 126 20 139 30 156 40 176 50 195 60 217 70 244 80 273 90 307 1. Suppose

asked by domo on September 7, 2015
60. ## math

a rope was tied to trees at both ends the curve of the rope can be modelled by the equation y=x^2-12x where y is the height and x is the horizontal distance both in feet how far apart are the trees how do you know. show your work

asked by t on December 19, 2012
61. ## physics

A game show contestant won a prize by pushing a bowling ball 20 m using her nose. The amount of work done was 1470 J. How much force did the contestant exert on the ball?

asked by wendell on June 29, 2011
62. ## overland high school

the gravitional force exerted on objects on the moon is about 1/6 that of earth. if an object weighs 240 newtons on the moon, on earth it would weigh _________.show work

asked by danial on March 2, 2011
63. ## Chemistry (30s)

I need help on this question. I can't seem to understand it. Find the molecular formula of a compound with a gram molecular mass of 30 g and an empirical formula of CH3. Please show your work! and briefly explain how you got it!

asked by Candice on March 23, 2016
64. ## math exam tommrow review

an amusment park recorded attendence of 825000 one year. the next year attendance was 975000. what was the percent increase in attendence. please show work/walk through process.

asked by ellis on December 18, 2012
65. ## physics

A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.) Show your work.

asked by MiyaW on March 14, 2012
66. ## Math

The surface area of the top surface of the water in a circular swimming pool is about 188 square feet. Show your work to find the radius of the pool.

asked by Jayda on April 15, 2019
67. ## Math

The radius of a cylinder is 3.5 feet. The height is 14 feet. Finally surface area and volume of the cylinder to the nearest 10th of a foot show your work please I need this ASAP

asked by Mini H2O delicious on April 15, 2019
68. ## science

Consider a hypothetical reaction in which A and B are reactants, and C and D are products. If 22 grams of A completely reacts with 14 grams of B to produce 9 grams of C, how many grams of D will be produced? Show all work! What law does this question

asked by laila solis on September 26, 2018

given the following piecewise function F(x)={x+11 for -9¡Üx

asked by Heather on December 10, 2012
70. ## Physics

On vacation, your 1500 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.60 m/s2. (a) What is the net force exerted by the car on the trailer? please show work

asked by jawn on September 15, 2009
71. ## Maths

i have an answer but im not sure if its right would you tell me please and show me the steps of how to work through the question make f the subject 7f-5=3g(2f+h) my answer was f=-h-5/3g-5 and i simplified that to f=-h/3g thanks for any help you can give me

asked by Spirit on June 8, 2007
72. ## Math

Maurice needed to cut a piece of wood for his project that measures 4 3/4 inches . How much wood will he have left if the board that he is cutting from is 8 inches long? Show your work

asked by J frank dent elementary on April 15, 2014
73. ## Calculus

The function f(x)=(x^4)-(10x^3)+(18x^2)-8 is continuous on the closed interval (1,8). Find the absolute minimum and maximum values for the function on this interval. Please help me!!! And please show your work so that i understand!! Thank you!!

asked by Sam on March 17, 2011
74. ## math

The volume of a cone is three hundred cubic kilometers. If the radius of the base is 9 kilometers, what is the height of the cone? Use three point one four for pi. Show your work and round to the nearest tenth.

asked by matt on July 22, 2010
75. ## calculus

I have two questions please 1.for the given equation list the intercepts and test for symmetry 49x^2+y^22=49 2. for the midpoint of the line segment from p_1 to P_2 is (-5,4). if P_1=(-2,2) what is P_2? Please show work

asked by spazed out on December 7, 2012
76. ## math

Midson draws a cone shape paper with height of 9 centimeters and a volume of 48 pi centimeters. What is the diameter of Midsons paper cup plz show all work

asked by jayla on October 8, 2015
77. ## Math

If Joshua was rock climbing at an elevation of 20 feet and Sash was scuba diving at 50 below sea level, which person is closer to sea level? (SHOW ALL WORK)

asked by Reyna Aureolus on December 5, 2018
78. ## algebra

3x-5(3x-7)= 2(x+9) + 45 You won't learn unless you try these yourself. Multiply out the term in parentheses, combine the x terms together and the constants together, and then put all the x terms on one side of the = and the constants on the other. Show

asked by Anonymous on April 24, 2007
79. ## math

Maurice needed to cut a piece of wood for this project that measures 4 and 3/4 inches. how much wood will he have left if the board that he is cutting from is 8 inches long? show your work.

80. ## Astronomy

You must show your work for full credit.) Calculate the circular speed of an object that orbits the Sun at a distance of 0.2 AU (1 AU = 1.5e+11 meters, the distance between the Earth and the Sun): (Points : 10)

asked by April on July 10, 2014
81. ## Chemistry

Calculate the density of an unknown sample of metal given that a 2.3504 gram sample of metal causes the water level in a graduated cylinder to rise from 33.5 ml to 35.2 ml. Show work

asked by josh on August 31, 2015
82. ## Math

Louis paid \$42 for a dozen magazines with her annual and subscription to her favorite sport magazine. What is the unit cost for each magazine?(How many magazines did she subscribe to) Please show work.

asked by Alicia on November 25, 2014
83. ## physics

A game show contestant won a prize by pushing a bowling ball 20 m using her nose. The amount of work done was 1470 J. How much force did the contestant exert on the ball?

asked by micah on June 30, 2011
84. ## math

Ms.Lembright ordered the types of muffins below for a class party -12 blueberry muffins for \$7.20 -8 chocolate muffins for \$4.40 -6 raisin muffins for \$4.50 What type of muffin cost the least? show your work please help me!!?

asked by ashley on April 15, 2012
85. ## science

A small dog is trained to jump straight up a distance of 1.2 m. How much kinetic energy does the 7.2-kg dog need to jump this high? (The acceleration due to gravity is 9.8 m/s2.) Show your work.

asked by Anonymous on January 10, 2013
86. ## Algebra

Write the equation of the line passing through the given pair of points. Write your result in slope-intercept form. (-1,3) and (4,-2) Show equation I will be happy to critique your work on this. y-3=1(x+1) y-3=1x+-1 y=x+2?

asked by Linda on May 20, 2007
87. ## college algebra

Use properties of logarithms to condense the logarithmic expression. Wreite the expression as a simple logarithm whose coefficient is 1. Where possible, evaluate logarithmic expressions. Inx + In 15 Please show work

88. ## math

The volume of a cone is three hundred cubic kilometers. If the radius of the base is 9 kilometers, what is the height of the cone? Use three point one four for pi. Show your work and round to the nearest tenth.

asked by Tanisha on August 27, 2010
89. ## math

volume is determined by the following formula Vs*3 represent the volume of the cube above in expanded form right side 3cm Evaluate to find the voume of the cube show work

asked by Mia on April 24, 2014
90. ## Calc Help

q=2500+(600/r+2)-40p Find dq/dp q=3000-100z+(400/p+5) Find dq/dp Please help. Final tom and can't figure this out. I know it's simple. Yes, they are simple. Show your work, I will critique it.

asked by Evan on May 1, 2007
91. ## science

12. Aluminum in blood plasma was shown to undergo a first order elimination reaction with a half-life of 160 days. If the initial concentration was 8.2 µg/L, how long will it take for the concentration to drop to 2.5 µg/L?

asked by dan on February 13, 2011
92. ## chemistry

in dealing with alcohol mechinisms, how do you know when to do dyhydration (elimination) or substitution? is it secondary and teritary undergo both Sn1 & E1 and primary undergo Sn2 and E2. or is one mech actually preferred? it seems like H2SO4 is always

asked by emi on December 9, 2007
93. ## problem solving

in a soccer tournament there are 22 entries. the tourney is single mathc elimination. that is 2 soccer teams compete at the same time and the loser is elimnated. how many games will be played to deterenmine chanmpioneship?

asked by MATT on September 12, 2011
94. ## HELP ON MATH!!!!

1)There are 18 blue balloons at Janice’s birthday party, and 1/3 of them have a prize in them. How many balloons have a prize? 2) Kyle is making Strawberry Shortcake. He cut some strawberries and put them in a measuring cup and saw he had 1 and 1/2 cups

asked by Q&J Wiiffeyy on May 20, 2016
95. ## Financial

I have found all the answers, but I have no idea how to compare my findings. Here are what I need to compare. 1) Rules of thumb: 2) Adjusted book value: 3) Discounted cash flow: All three of those have answers that I have already found but I am suppose to

asked by Lindsay on July 25, 2010
96. ## Math

Let y=e^(cos^-1x) for modx

asked by Joel on November 30, 2016
97. ## world history

I need help in s.s . can you please help me with a family tree ?? can you please show me a family tree of king Henry the viii . can you please show me his wifes and life in an actual tree with some pictures !!!!!!!!!!! please please !!!!!!! i am beging you

asked by Miley on November 23, 2008
98. ## Urgent-Chemistry Help

I need help with the heat effects and calorimetry worksheet. Please explain how to solve it! Thank you so much! A metal sample weighing 45.2g and at a temperature of 100.0 C was placed in 38.6g of water in a calorimeter at 25.6 C. At equilibrium the

asked by Tiffany on December 4, 2006
99. ## Chemistry

World energy supplies are often measured in the unit of quadrillion British thermal units (10^12 btu), generally called a "quad." In 2015, world energy consumption is projected to be 5.81*10^17kJ. Current annual energy consumption in the United States is

asked by M on October 7, 2012
100. ## Chemistry

World energy supplies are often measured in the unit of quadrillion British thermal units (10^12 btu), generally called a "quad." In 2015, world energy consumption is projected to be 5.81*10^17kJ. Current annual energy consumption in the United States is

asked by M on October 7, 2012