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

92,096 questions, page 705
1. Physics

A crate of fruit with a mass of 37.5 kg and a specific heat capacity of 3800 J/(kg⋅K) slides 7.60 m down a ramp inclined at an angle of 38.5 degrees below the horizontal. If the crate was at rest at the top of the incline and has a speed of 2.35 m/s at

asked by Physics on September 15, 2017
2. Ethics

describe the role civil disobedience played in the civil rights movement It was central. http://www.answers.com/civil%20disobedience

asked by Anonymous on January 19, 2007
3. Physics

At an accident scene on a level road, investigators measure a car's skid mark to be 68 m long. It was a rainy day and the coefficient of friction was estimated to be 0.40. Using the work-energy theorem determine the speed of the car when the driver slammed

asked by Jennifer on February 22, 2015
4. math

beads for sale: 12 cents for 15. Write an equation relating the cost (c) and the number of beads (n0 for the beads. Katie or Halida or whoever, Please note that we don't do students' homework for them. Our tutors try to give you the information to help you

asked by KATIE THE NEEDS HELP!! on May 3, 2007
5. Chemistry Solutions

Commercial Sodium hydroxide has a concentration of 19.4mol/L. How many milliliters of sodium hydroxide solution can be prepared from 59g or sodium hydroxide.

asked by Isaac on November 5, 2016
6. math 101

how much liquid containing 6% boric acid should be mixed with quarts of liqud that is 15% boric acid in order to obtain a solution that is 12% boric acid?

asked by Arvee on September 11, 2016
7. chemistry

A solute is added to water and a portion of the solute remains un-dissolved. When equilibrium between the dissolved and un-dissolved solute is reached, the solution must be

asked by berta on May 22, 2013
8. critical thinking test AU

1. Question : The average height of members of the high school basketball team is six feet, three inches. Jerry is on the high school basketball team, so Jerry must be taller than six feet. The argument above is flawed because it confuses: Student Answer:

asked by jack on March 12, 2012
9. physics

The Navstar Global Positioning System (GPS) utilizes a group of 24 satellites orbiting the Earth. Using "triangulation" and signals transmitted by these satellites, the position of a receiver on the Earth can be determined to within an accuracy of a few

asked by Claire on November 19, 2018
10. Physics

The system starts at rest. A mass of 20kg (m1) is connected to a pulley of uniform mass m=5kg and radius 10cm and a mass of 30kg (m2) hangs on the other side of the pulley hanging 2m above the ledge Find the tension of the strings I tried to find the

asked by Maddi on September 21, 2016
11. physics

1. Two similar cylindrical polished bars weighing 5.00 N each lie next to one another in contact. A third similar bar is placed on the other two in the groove between them. Neglecting friction what horizontal force on each other is necessary to keep them

asked by GG Khannam on June 18, 2014
12. chemistry

how do i solve the following problem? Nitrogen dioxide decomposes to nitric oxide and oxygen via the reaction: 2NO2 → 2NO + O2 In a particular experiment at 300°C, [NO2] drops from 0.0100 to 0.00650 M in 100 s. The rate of Disappearance of NO2 for this

asked by jess on November 17, 2010
13. statistics

In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z

asked by david on July 14, 2011
14. Math

Suppose just go is selling magazine subscriptions each of the scription cost \$20 the company pays the school half of the total sales in dollars the school must also pay a one time fee of \$18 right and solve any Quetion to determine the fewest number of the

asked by Kayla on November 13, 2015
15. history

Which of the following is not a biased statement about Texas history? A. Annexation was the only way to solve the debt problem created by sam Houston. B. the republic of Texas was an independent country for 10 years. C. the native Texans were the cause of

asked by hi on December 20, 2018
16. Quantum physics

How can I solve the following ecercise: Use perturbation theory to calculate the energy levels of a particle in a box with a cosine function botto. Let the box extend from x=a to x=a and let the perturbing potential be H' = V0[1+cos(2*Pi*m*x/a)]. This

asked by Juan Manuek on June 15, 2011
17. statistics

In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z

asked by david on July 14, 2011
18. statistics

In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z

asked by david on July 14, 2011
19. chemistry

How can I solve the following ecercise: Use perturbation theory to calculate the energy levels of a particle in a box with a cosine function botto. Let the box extend from x=a to x=a and let the perturbing potential be H' = V0[1+cos(2*Pi*m*x/a)]. This

asked by Juan Manuek on June 15, 2011
20. statistics

In our initial survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation 3.03. Using this information, what would be the first and third quartile be for the class? ( P(Z

asked by david on July 14, 2011
21. Math Help!

1. Find the 4th term in the binomial expansion.(2x + 3y)^6 2. Use synthetic division and the remainder theorem to find P(a). P(x)= x^5 + 3x^4 + 3x − 7; P(-1) 3. Factor the expression on the left side of the equation. Then solve the equation. x^6 + 128x^3

asked by Larry on May 8, 2014
22. Maths

1.solve the equations below x+y+z=1 x^2+y^2+z^2=35 x^3+y^3+z^3=97 2.Determine the area of the largest rectangle that can be inscribed in the circle x^2+y^2=a^2. Thus, name the rectangle formed 3.a ship leaves airport and travels 25kmnon a bearing of 037°

asked by Sannu Xeno on September 22, 2019
23. math

Can someone please check my answers and help me with the last question! 1. Solve sin2xcos2x = 4sin2x on the interval [0, 2pi] 0, pi, 2pi? 2. Exact value of sin(pi/12) - sin(5pi/12) root3/4? 3. Using factorial notation, 0! = 1 False? 4. Find the area of the

asked by mysterychicken on June 6, 2013
24. math

how would u solve this: 2sin(x)-1=0 exact step to solving would be nice thanx Add one to both sides and divinde both sides by 2. sin x = 1/2 Now look up the angle that has a sine of 1/2. That's the answer what is a derpeciation expense The word

asked by anna on April 11, 2007
25. HELP PLEASE NOW

1. What are the causes of problems the Mayas and other Native American groups face in Guatemala? How are people trying to solve these problems? 2. Compare and contrast the economies of Chile and Venezuela. 3. Name two geographic obstacles and one political

asked by Cora on May 29, 2015
26. grade 8 french

complete les phrases avec la forme correcte du verbe au passe compose. 1) (naitre) Notre directrice _____ ____ en 1975. 2) (venir) La pharmacienne ______ _____ parler aux eleves. 3) (devenir) ce professeur _____ _____ directeur. could you please help me

asked by rebecca on June 18, 2009
27. Physics

Hi! i am going to apply for a medical study admission test and where just wondering if you guys could help me to come up with the formula for solving this problem. I am not looking for a answer, just the mathematical formula to solve theese kind of

asked by Marius on May 13, 2015
28. ECON

Suppose that we are in the early days of the Bretton Woods system, and France has declared a par value for the French franc at FF6 per dollar. The allowable fluctuation band is one percent on either side of par. What is the price ceiling for the dollar in

asked by Blaney on November 19, 2014
29. arithmetic

ok I don't know how to multiply 600x3/8 then subtract it. Could you please show me how. That math place doesnt realy help me. I get 1800/4800 right?? how do i break it down without it taking forever?

asked by chrissy on July 28, 2007
30. HELP

A brass rod with a length of 10.0 cm is placed end to end with an aluminum rod with a length of 30.0 cm and this system is placed between a hot temperature of 100°C and a cold temperature of 10.0°C. The coefficient of thermal conductivities of the brass

asked by amy on March 20, 2013
31. physics

A stonemason lifts a small boulder weighing Fw = 80 N from the ground onto a height = 1.50 m wall in the time t = 2.0 s. Using the values in the problem, calculate how much work she does. What power does she develop in watts? What power does she develop in

asked by harley on January 24, 2018
32. chemistry

ideal gas .450 mole initial pressure 16 atm and 290 K expands isothermally to a final pressure 1 atm. find work , if expansion is against a vacuum, a constant external pressure of 1 atm and reviersibly

asked by kat on February 1, 2009
33. physics

A hockey puck of mass 0.27 kg is sliding along a slippery frozen lake, with an initial speed of 56 m/s. The coefficient of friction between the ice and the puck is μK = 0.032. Friction eventually causes the puck to slide to a stop. Find the work done by

asked by cbrown on March 19, 2009
34. Physics

Some object moves 220.0 m at an angle of 42° north of west. During this motion, a 68.0 N force acts on the same object, doing +5460.0 J of work on the object. Assuming the force is applied horizontal to ground, what is this force’s orientation? Is there

asked by Chad on August 9, 2012
35. Physics

An ideal gas in a rigid container (constant volume) has its pressure cut in half slowly. In the process, 265 kJ of heat left the gas. (a) How much work was done during the process? (b) What was the change in internal energy of the gas during this process?

asked by Andrea on October 6, 2010
36. Physical Chemistry

Calculate the work, w, (in J) when 0.6 litre of an ideal gas at an initial pressure of 91.5 atm is expanded isothermally to a final pressure of 2.15 atm against a constant external pressure of 2.15 atm. I got -130.71 J, but apparently it is wrong. Help is

asked by Cole on January 18, 2016
37. Physics

A 1400 kg car travels up a 20 degrees incline. The car exerts a constant force of 30,000 N across 100m. The car starts from rest at the bottom of the incline. The car takes 10 minutes to do this. How much work is done by the car?

asked by Anonymous on January 25, 2017
38. human resources

Needs assessment: What types of issues might indicate a need for training? From what sources would these issues be identified? If you were a training manager, how would you prioritize training needs from these sources? a. A supervisor requests training on

asked by Nadia on September 27, 2008
39. psychology

Leigh, B. C. (1993). Alcohol consumption and sexual activity as reported with a diary technique. Journal of Abnormal Psychology, 102, 490-493. doi:10.1037/0021-843X.102.3.490 This is the article to utilize when answering the questions 1. What are the

asked by Mel on July 6, 2014
40. Statistic

GMAT and GPA Scores for 12 MBA Students Compute the covariance and the determination and interpret your findings. GMAT- 599 689 584 631 594 643 MBA GPA- 9.6 8.8 7.4 10.0 7.8 9.2 GMAT- 656 594 710 611 593 683 MBA GPA- 9.6 8.4 11.2 7.6 8.8 8.0 Show me

asked by teresa on January 31, 2011
41. history

How did the policies of the Napoleonic Empire change Europe? Napoleon’s expansion policies led to a desire for self-rule throughout Europe. The policies of Napoleon led to international treaties, economic cooperation, and world peace. Policies of the

asked by Bri on October 2, 2018
42. History

How did the policies of the Napoleonic Empire change Europe? a. Napoleon’s expansion policies led to a desire for self-rule throughout Europe. b. Policies of the Napoleonic Empire elevated the education system throughout Europe, which led to local

asked by Anonymous on January 17, 2018
43. chemistry

Butanoic acid consists entirely of C, H and O. Upon combustion, a 0.3164g sample of butanoic acid produces 0.6322g CO2 and 0.2588g H2O. Determine the empirical formula of butanoic acid I don't want the answer just direction on how to solve this pls

asked by balanciaga on June 11, 2016
44. History Essay

This essay is on Benjamin Franklin, and I was wondering why he went to Philadelphia at only 17. Did he run away or did his parents send him away? Where did he stay and work while he was there? I've researched on Google, but I can't find any good

asked by Jenna on February 26, 2007
45. Literacy

. Which statement best characterizes Adam Smith’s concept of the “invisible hand”? A. Those who don’t work shouldn’t eat. B. The quest for personal gain works for the common good. C. When governments fail to regulate, greed conquers all. D.

asked by Heather on January 22, 2012
46. 7th grade Social Studies Ms. Sue please!

This homework question was removed due to a copyright claim submitted by Connections Education. My answers: 1. organize information. 2. enough detail. 3. Earth's tilt and orbit 4. new landforms. 5. latitude. 6. polar. 7. birth rates and death rates. 8.

asked by Delilah on January 10, 2013
47. English

I left out a last thing about the comprehension. Thank you very much Writeacher. 1) Paradoxically, Amnesty is an organization that will only be satisfied when it has become redundant. Meaning: Amnesty will go on working until its work becomes unecessary.

asked by Matthew on April 15, 2012

Today many employers expect interviewees to do more than just answer standard questions including all of the following except .defer to the hiring company to take control of the interview process B.provide samples of work they woukd likey do in the job.

asked by Anonymous on February 22, 2012
49. physics

Suppose an object is placed at a distance x from a screen and a converging lens of focal length f is placed between the object and the screen. What is the minimum separation distance x (in terms of f) for a real image to be formed on the screen? Support

asked by Josh on May 19, 2014
50. Biology

What will happen when deionized water is added to red blood cells and then left to sit for 15 minutes? Will the blood cells mix with the water immediately and make a paler solution or will they be more dense than the water and sink to the bottom?

asked by Ejda on October 1, 2007
51. A.P. Chemistry

You have solutions of 0.200 M HNO2 and 0.200 M KNO2 (Ka for HNO2 = 4.00  10-4). A buffer of pH 3.000 is needed. What volumes of HNO2 and KNO2 are required to make 1 liter of buffered solution? How does the henderson hasslebache equation help find the

asked by Oli on April 3, 2010
52. Physical Science

Suppose an unknown substance has a melting temperature of 1,200 degrees Celsius and a density of 16.7 g/cm3. However, the different individual atoms that make up the substance have very different melting temperatures and densities. The unknown substance is

asked by Ryan on September 25, 2011
53. Chemistry

What is the molarity of HCL if it takes 16.5 mL of 0.100 M NaOH to titrate 10.0 mL of HCl? HCl + NaOH -> H2O + NaCl molarity = moles of solute/liters of solution

asked by Selena on September 18, 2014
54. Chemistry

How mush CaCl2, in grams, is needed to make 2.0 L of a 3.5M solution? g CaCl2 = (2.0L) *( 3.5 mol Cl-/1L) * (1mol CaCl2/ 2mol Cl-) *( 110.98 g CaCl2/ 1 mol CaCl2) = 5.549 g CaCl2 i don't think i did any of this right

asked by Sydney on June 23, 2015
55. chemistry

What is the value of [OH-] in a 0.015 M CH3COOH solution? Ka = 1.8 x 10-5 I started by writing the equation: CH3COOH + H2O H3O+ + CH3COO- Ka= [H3O+][CH3COO-]/[CH3COOH]= 1.8 E-5 ... Now what? I don't understand where OH relates to this ...

asked by Audrey on November 15, 2010
56. Math

What is the solution of the inequality 1_< x What is the sum of 4 and x is greater than 6 A snake's body temperature never goes below 3C what inequality can I write to represent this Nina wants to take at least \$15 to the movies. What inequality can I

asked by Makenzey on February 26, 2015
57. chemistry

suppose you have an unlimited supply of copper (II) chloride to react with iron. How many moles of copper would be produced by reacting 34 grams of iron with the copper(II) chloride solution?

asked by sarah on October 29, 2010
58. chemistry

Silver chromate is sparingly soluble in aqueous solutions. The Ksp of Ag2CrO4 is 1.12× 10–12. What is the solubility (in mol/L) of silver chromate in 1.00 M potassium chromate aqueous solution?

asked by Katie on February 13, 2012
59. Chemistry

Arsenic acid (H3AsO4) is a triprotic acid with Ka1 = 5 ✕ 10-3, Ka2 = 8 ✕ 10-8, and Ka3 = 6 ✕ 10-10. Calculate [H+], [OH ‾ ], [H3AsO4], [H2AsO4‾ ], [HAsO42 ‾ ], and [AsO43 ‾ ] in a 0.16 M arsenic acid solution.

asked by Damian Clarke on March 24, 2014
60. chemistry

Lactic acid, HC3H5O3(aq) is a weak acid that gives yougurt its sour taste(Yeeeeecccckkk). Calculate the pH of a 0.0010 mol/L solution of Lactic acid. The Ka for lactic acid is 1.4 x 10^-4

asked by Geroge B. on April 5, 2008
61. chem

In a solution prepared by mixing CH3OH with H2O the major species pesent are 1. a. CH3+, OH, and H2O 2. b. CH3O, H+, and H2O 3. c. CH3OH and H2O 4. d. CH3OH, H+, and OH I know i have to get an equation having trouble doing that!! please help!!

asked by Mark on April 24, 2010
62. Biology

14. Which of the following is the blood vessel with the largest diameter? a. capillary b. artery c. vein d. venule Not sure...? 16. As a defense against pathogens, mucous membranes a. cover all of the body's surfaces to act as an impenetrable barrier b.

asked by mysterychicken on March 19, 2010
63. government

How has the Supreme Court ruled on affirmative action in university admissions? A. Race can only be a factor in medical school admissions. B. It is up to the states to decide whether they will allow race as a factor in admissions. C. Only when no other

asked by dbh on April 24, 2019
64. Physics

A 0.500kg block of metal with an initial temperature of 30 degrees C is dropped into a container holding 1.12kg of water at 20.0 degrees C. If the final temperature of the block-water system is 20.4 degrees C, what is the specific heat of the metal? Assume

asked by Tammy on May 5, 2019
65. Derivatives

Find the derivatives of: 1. H(x)= sin2xcos2x The answer given is 2cos4x. My question is, how in the world did they get that!? Shouldn't the answer at least contain the sin function, either negative or positive seeing as it's the derivative of cos? Also,

asked by Daisy on October 3, 2013
66. math

a disc jockey must play 14 commercial spots during 1 hour of a radio show. each commercial is either 30 seconds or 60 seconds long. if the total commercial time during 1 hour is 11 min, how many 30 seconds commercials were played that hour. how many 60

asked by linda on October 6, 2008
67. chemistry

Experimental Design: From the work you have done this semester, choose a topic and design an experiment you would be able to perform. In your design (1) state your hypothesis, (2) identify your dependent and (3) independent variables, (4) your control

asked by louren on March 29, 2016
68. thesis help

I know I m asking for a lot of work but please if somebody can help me , I would really appreciate it

asked by thesis help on November 6, 2011
69. Math

A man travels to work everyday at a speed of 40km/h using a car and 6km/h by walking. He arrives at his workshop in 25mins. One day his car broke down and he walked three times as far, thereby arriving at the workshop 17mins late. Calculate the distance

asked by Joseph on September 15, 2015
70. Plz help check my answer!!?

The commute times during rush hour traffic on a local interstate have a mean of 25 minutes and a standard deviation of 5 minutes. Repeated studies of this section of interstate are considered normally distributed. What percent of commuters drive between 20

asked by Melanie on April 24, 2017
71. Math

You work in the accounts receivable department and have just received a cheque for \$2400 from a customer. On checking the records you find that you billed this customer for \$5000 fifteen days ago. Your company's terms are 4/10, 3/20, n/60. After posting

asked by Anonymous on January 13, 2019
72. English

In "All Together Now", Jordan uses appeals to emotion and appeals to reason to try to persuade her readers that her views are important. In a paragraph, cite one example of each kind of appeal in her work. Then, explain whether you find Jordan's appeals

asked by Anime Lover on December 13, 2018
73. Check my math question please? Very urgent!

The commute times during rush hour traffic on a local interstate have a mean of 25 minutes and a standard deviation of 5 minutes. Repeated studies of this section of interstate are considered normally distributed. What percent of commuters drive between 20

asked by Melanie on April 24, 2017
74. calculus

Find the derivative using the chain rule. f(x) = ((3x-7)/(6x+3))^4 f '(x) = let u= 3x-7 v= (6x+3)^-4 Then d(uv)= u dv + v du du= 3 dv= -4(6x+3)^-5 (6) so what's f'(x)? (thanks for your help) Goodness. f'(x) is d(uv) I will be happy to critique your work or

asked by jessica on February 20, 2007
75. physics

i need help it says a shopper in a supermarket pushes a cart with a force of 36N directed at an angle of 26 degrees downward from the horizontal. Find the work done by the shopper on the cart as the shopper moves along a 50.6m length aisle. answer in units

asked by Claudia on November 2, 2008
76. Physics: Kinematics

A speed boat moving at 33.7 m/s approaches a no-wake buoy marker 93.3 m ahead. The pilot slows the boat with a constant deceleration of 2.9 m/s 2 by reducing the throttle. How long does it take the boat to reach the buoy? current work done: x = Vot +

asked by Michelle on October 29, 2012
77. Physics!!

A baggage handler throws a 16.0kg suitcase horizontally along the floor of an airplane luggage compartment with an initial speed of 1.40m/s . The suitcase slides 2.20m before stopping.Use work and energy to find the suitcase's coefficient of kinetic

asked by Jony on March 16, 2012
78. Physis

A bullet of mass of 30g and travelling at a speed of 200msˉ¹ embeds itself in a wooden block. The bullet penetrates a distance of 12cm into the wood. Using the concepts of work done by a force and kinetic energy, determine the average resistive force

asked by James on March 8, 2012
79. statistic

Of all mortgage foreclosures in the United States, 50% are caused by disability. People who are injured or ill cannot work--they then lose their jobs and thus their incomes. With no income, they cannot make their mortgage payment and the bank forecloses.

asked by Anonymous on November 10, 2015
80. macroeconomics

an increase in GDP necessarily translated into improvements into the welfare of citizens? true or false. i think its true but im not sure I can think of examples when it would not be true. Consider a kingdom which increases total output because the king

asked by jenna on March 13, 2007
81. Math

Use multiplication, division, addition and subtraction and at least one set of parentheses to write an expression that simplifies to 7, 13, or 17. Do your work step by step and explain each step as you simplify the expression. Demonstrate the consequences

asked by Mary on December 25, 2011
82. College Physics

A charged cloud system produces an electric field in the air near Earth's surface. A particle of charge -2.1 x 10-9 C is acted on by a downward electrostatic force of 4.3 x 10-6 N when placed in this field. (a) What is the magnitude of the electric field?

asked by Stephanie22-41 on July 8, 2012
83. Analytical Physics II

A charged cloud system produces an electric field in the air near Earth's surface. A particle of charge -2.1 x 10-9 C is acted on by a downward electrostatic force of 4.3 x 10-6 N when placed in this field. (a) What is the magnitude of the electric field?

asked by Maria on September 21, 2017
84. Trig/Precalc

The system of equations: |z-2-2i|=sqrt(23), |z-8-5i|=sqrt(38) has two solutions z_1 and z_2 in complex numbers. Find (z_1+z_2)/2. My first instinct on this problem was to square each equation given that the square of the magnitude of a complex number is

asked by majorbill on February 16, 2015
85. Physics

In a laboratory experiment, a calorimeter is used to find the specific heat of an unknown metal. 100.0 grams of dry metal shot are placed in a cup and heated to a temperature of 95 °C. The calorimeter is partially filled with 150 g of water at 20.0 °C.

asked by mssailormouth on July 5, 2019
86. social studies

1. Which of the following was one of the influences of the Roman Republic in the framing of the Constitution? (1 point) a centralized government that provides for more order elected representatives who are the voice of the people a judicial system that is

asked by reb on November 7, 2018
87. PreAlgebra

A circular pond 20 m in diameter is surrounded by a gravel path 5 m wide. The path is to be replaced by a brick walk costing \$30 per square meter. How much will the walk cost? i need to teach this to my brother, but i'm stuck on it myself. please show me

asked by y912f on May 8, 2009
88. english

• The article I chose is: how stuff works – communication. The type of introduction that the writer used was to include interesting facts about the subject. He also gave animated illustrations to show how telephone communication works. The kind of

asked by Tom on April 14, 2008
89. Algebra 2

Introduction to quadratic equations? If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0 x^2+x+blank=-4/9+blank

asked by Chelsea:) on April 24, 2012
90. help

Introduction to quadratic equations? If you solve the equation by completing the square, fill in the blanks. 9x^2+9x+4=0 x^2+x+blank=-4/9+blank

asked by Chelsea:) on April 20, 2012
91. Accounting

1. Assume that Sprinturf uses a job order costing system. For the three basic cost categories of direct materials, direct labor, and overhead, identify at least two typical costs that would fall into each category for Sprinturf. 2. Assume a local high

asked by Dezmin on September 20, 2010
92. Math

Write the inequality and solve for the following question: the result of 6 subtracted from a number n is at least 2, A. n-2>6;n>8 B. n-6>2;n>8 these arrows have a line under them.*** C. n+6>2;n2;n>4 these arrows have a line under them. Is the answer B?

asked by beau on September 19, 2014
93. Math

how i solve this two equations ib order to find alpha and beta 2=cos(alpha)+1.341cos(beta) 2=sin(alpha)-1.341sin(beta)

asked by mohh on April 30, 2010
94. Pre-algebra

Transform the formula. The area of a triangle A can be found with the formula A=1/2bh where b is the length of the base of the triangle and h is the height of the triangle. Solve the formula for h.

asked by Jacob on January 20, 2011
95. calculus

find the equation of a quadratic function whose graph is tangent at x=1 to the line whose slope8, tangent at x=-2 to solve the line with slope-4 and tangent to the line y=-8

asked by erika on February 28, 2011
96. Math help Geometery

If, I ahve a trapezoid with two angles Angle 86 degrees and 41 degrees and angle A 133 degrees then,side b 10 Short base 6 How do I solve to get angle B?

asked by Corey on April 16, 2013
97. elementary

write a problem write a word problem involving the number of pages in a book.then write the numerical expression that you would need to use to solve your problem.

asked by swetha on October 29, 2012
98. math

I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"

asked by Nina on September 18, 2008
99. math

I'm not sure of how to solve word problems. The question is,"One lawn fertilizer is 24% nitrogen and another is 12% nitrogen. How much of fertilizer should be mixed to obtain 100 kg of fertilizer that is 21% nitrogen?"

asked by Nina on September 18, 2008
100. Math

there are 680 coins divided into 3 piles. The second pile has three times as many coins as the first. The third pile has 50 more coins than the second pile. Solve This problem using a tape diagram.

asked by Melissa on April 29, 2017