ALISON

Newest questions and responses by ALISON

  1. probability

    Consider an image, in which every pixel takes a value of 1, with probability q, and a value 0, with probability 1−q, where q is the realized value of a random variable Q which is distributed uniformly over the interval [0,1]. The realized value q is the

    asked on November 16, 2018

  2. Physics

    Rank the magnitude of the change in momentum of a ball from largest to smallest in the following situations: a) The ball is moving with constant velocity, hits a wall, and stops moving. b) The ball is moving with constant velocity, hits a wall, and bounces

    asked on October 13, 2018

  3. physics

    A skateboarder travels on a horizontal surface with an initial velocity of 4.4 m/s toward the south and a constant acceleration of 2.0 m/s2 toward the east. Let the x direction be eastward and the y direction be northward, and let the skateboarder be at

    asked on September 29, 2018

  4. Social Studies

    What were some reasons for the French and Indian war?

    asked on September 4, 2018

  5. English

    Fill in the blanks The customer paid by .... f9r his new ..... suit

    asked on November 6, 2017

  7. Algebra

    Write as an equivalent absolute value equation. x-4=4x-5 or x-4=-(4x-5)

    asked on September 17, 2017

  8. Algebra

    A jet plane traveling at 550 mph overtakes a propeller plane traveling at 150 mph that had a 22​-hour head start. How far from the starting point are the​ planes? The planes are ____ miles from the starting point.

    asked on September 17, 2017

  9. Algebra

    A stack of $20, $50, and $100 was retrieved as part of a police investigation. There were 36 more $50 bills than $100 bills. Also, the number of $20 bills was 8 times the number of $100 bills. If the total value of the money was $9240, find the number of

    asked on September 17, 2017

  10. Math

    Write an absolute value equation representing all numbers x whose distance from 0 is 17 units.

    asked on September 15, 2017

  11. Math

    Rewrite each expression using the distributive property. 1.(12 x w) + (11 x n) 2.(42 x c) + (47 x e)

    asked on August 24, 2017

  12. Physics

    If a ball is rolling down an inclined ramp straight, will the change in position be squared for every passing second or would it just be multiplied by two? I'm not sure if this makes sense so here's what I mean in an example for the change in position will

    asked on December 3, 2016

  13. ** Math - PLEASE help!!

    Find all real zeros of the function: f(x)=-2x(x^-16)(x-3) I appreciate all help. Thank you.

    asked on November 9, 2016

  14. Math - APPRICIATE ALL HELP!

    Suppose that a household's monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, HCF). When graphed, the function gives a line with a slope of 1.75. If the monthly bill fro 24 HCF is

    asked on November 9, 2016

  15. Government

    1. The main purpose of a legislature, whether it be the Indiana General Assembly or the US Congress, is to MAKE laws. True False 2. Indiana's two US Senators are Richard Lugar (R) and Dan Coats (R) True False 3. Currently in the US House of

    asked on July 4, 2016

  16. Math

    a carpenter divides a board that is 3.5 inches wide into 4 pieces of equal widthby cutting 3 places. if the width of her saw blade is 1/8 inch, what is the finished width of each piece? What percent of the board length is actullay used?

    asked on May 11, 2016

  18. chemistry

    HF hydrolyzes according to the following equation: HF(aq)+H2O(l) H3O+(aq)+F-(aq) When 0.0300 mol of HF dissolves in 1.0 L of water, the solution quickly ionizes to reach equilibrium. At equilibrium, the remaining [HF]=0.0270 M. a.) How many moles of HF

    asked on May 1, 2016

  19. Algebra

    john is three times as old as Greg, and Greg is half the age of Bob, Steve is two times the age of John and Bob combined. if Steve's age is 60, how old is Greg's older cousin Jane, who is two years older than Greg?

    asked on April 15, 2016

  20. ALGEBRA

    Part A: Maria rented a coat at $285 for 3 days. If she rents the same coat for 6 days, she has to pay a total rent of $510. Write an equation in the standard form to represent the total rent (y) that Maria has to pay for renting the coat for x days. Part

    asked on October 30, 2015

  21. Maths, Life Science, Geography, Business Studies

    What career opportunities are open for me regarding the above subjects?

    asked on February 6, 2015

  22. Kate

    Jay, Kay, Ray found themselves far apart for lunch while working in a field. Jay could see Kay, then turned 75 degrees and see Ray. Kay could see Ray, then turn 51 degrees and see Jay. Ray could see jay, then turn 54 degrees and see Kay. Which two were the

    asked on January 27, 2015

  23. Geometry

    Jay, Kay, Ray found themselves far apart for lunch while working in a field. Jay could see Kay, then turned 75 degrees and see Ray. Kay could see Ray, then turn 51 degrees and see Jay. Ray could see jay, then turn 54 degrees and see Kay. Which two were the

    asked on January 27, 2015

  24. ELA

    How are litotes different from understatement, but also related to it?

    asked on December 4, 2014

  25. Science

    Write the half reactions and the balanced equation for the galvanic cell Hg(ℓ)| Hg2(+2)(aq)|| MnO(−4)(aq), Mn2 (aq), H(+)(aq)| Pt(s). What is the smallest possible integer coefficient of Mn(2+)(aq) in the combined balanced equation?

    asked on November 16, 2014

  26. chemestry

    what is the electron configuration of lithium after making an octet

    asked on September 30, 2014

  27. Math

    200 oranges were purchased for $53.40. How much would 100 oranges have cost?

    asked on September 21, 2014

  29. Force of Gravity

    How far from Earth's surface would you have to travel to be 1/4 your weight. Give your answer in Earth radii. I know you have to travel twice the distance or 1 Earth radii... I just don't know how to mathematically show it. Please help.

    asked on September 11, 2014

  30. Math

    .037x.15 0.00555

    asked on August 28, 2014

  31. Math

    estimate 6.9 x 3.67 2.800

    asked on August 28, 2014

  32. math

    estimate 6.9 x3.67 25.323

    asked on August 27, 2014

  33. Math

    You have 17fourths of pizza. Show with math or pictures how many pizza you have. 4 pizzas with 1 slice left. 4

    asked on August 27, 2014

  34. chemistry

    35.6 g of Zn reacts with 87.1 g of Br to produce ZnBr2, the only product, with no reactant left over. How much ZnBr2 could be formed by reacting 156 g of Br? 1. 538 g 2. 45.4 g 3. 382 g 4. 220 g 5. 0.0156 g 6. 0.00262 g

    asked on August 27, 2014

  35. ALgebra

    A theatre production company donated free tickets for their show to the local Boys & Girls club. They claimed that the ticket value was $306. A child's ticket cost $5.25 and an adult ticket cost $9.75. If there were three times as many children's tickets

    asked on June 12, 2014

  36. chemistry

    Is it possible to identify a metal in a fragment if you only know the specific heat?

    asked on May 18, 2014

  37. chemistry

    If 15.0 mL of a 1.5M HCl solution at 22.5 degrees C is mixed with 25.0mL of a 1.5M NaOH solution at 21.5 degrees C that is in a calorimeter, and the final mixed solution temperature ends up at 28.5 degrees C, 1.)what is the balanced equation for this

    asked on April 14, 2014

  38. math

    Since the car rents for $22.50 per day and you are charged $.15 per mile, how many miles could you drive and not spend over $50.00

    asked on April 10, 2014

  40. math

    find the value for (m) that makes each number sentence true a. 2/3 x 4/5 x m =1/3 b. 4/5 x 2/3 x m =1/3 c.2/3 x 4/5 = 1/3 / m

    asked on February 7, 2014

  41. math

    Kalin walks at a steady rate of 3 2/3miles per hour. The beach is 4 1/4 miles from his home. How long will it take Kalin to walk from his home to the beach and back to his home?

    asked on February 7, 2014

  42. Physics

    A swimmer wants to cross a river, from point A to point B, as shown in the figure. The distance d1 (from A to C) is 200 m, the distance d2 (from C to B) is 132 m, and the speed of the current in the river is 1.0 m/s. Suppose that the swimmer's velocity

    asked on February 1, 2014

  43. Precalc

    solve the equation: log base 10 of x - log base 10 of (7-4x)=2 Please help i have been stuck on this for awhile!

    asked on November 27, 2013

  44. Math

    Which is an equation of the line that passed through ( 2,-5 ) and ( 6,3 ). A. Y= 1/2X - 6 B. Y= 1/2X C. Y= 2X + 12 D. Y= 2X - 9

    asked on November 4, 2013

  45. Physics

    two identical brass balls mounted on wooden posts initially have different amounts of charge, one plus 3 uC and the other plus 15 uC. The balls are allowed to touch and then separate again. What is the final charge on each ball?

    asked on October 27, 2013

  46. PHYSICS!!

    I've tried this problem again and again using conservation of momentum and energy but I am not having any luck: A ball of mass 0.300kg that is moving with a speed of 8.0m/s collides head-on and elastically with another ball initially at rest. Immediately

    asked on October 11, 2013

  47. physics

    After 10.3 s, a jogger’s displacement is 360 m. What is the average velocity in m/s? Answer in units of m/s part 2 What is the average velocity in km/h? Answer in units of km/h

    asked on October 2, 2013

  48. Physics

    If Joe rides south on his bicycle in a straight line for 29 min with an average speed of 14.8 km/h, how far has he ridden? Answer in units of km

    asked on October 2, 2013

  49. Physics

    How much time would Simpson save by in- creasing his average velocity to 65.8 km/h to the east? Answer in units of min

    asked on October 2, 2013

  51. physics

    Simpson drives his car with an average veloc- ity of 49.7 km/h to the east. How long will it take him to drive 150 km on a straight highway? Answer in units of h

    asked on October 1, 2013

  52. Physics

    A car makes a 288 km trip at an average speed of 31.3 km/h. A second car starting 1 h later arrives at their mutual destination at the same time. What was the average speed of the second car for the period that it was in motion? Answer in units of km/h

    asked on October 1, 2013

  53. Physics

    A 2000kg car rounds a curve of 65m banked at an angle of 11∘ How much friction force will be required? I know how to find frictional force on a normal flat surface but I don't know how to apply it with a curve. Any help with work would be great!

    asked on September 27, 2013

  54. Calculus

    Consider the indefinite integral (6x^3+3x^2-19x-10)/(x^2-4)dx Then the integrand decomposes in the form ax + b + (c/(x-2)) + (d/(x+2) I found b and c to equal 3 and d to equal 2, but I'm having trouble finding A and finding the final integration by

    asked on September 27, 2013

  55. Physics

    A car rounds a curve with a radius of 25 m at a speed 30 m/s. What is the centripetal acceleration of the car?

    asked on September 22, 2013

  56. physics

    A stone is dropped from the roof of a building; 1.60s after that, a second stone is thrown straight down with an initial speed of 26.0m/s , and the two stones land at the same time. part a. How long did it take the first stone to reach the ground? part

    asked on September 6, 2013

  57. Physics

    A herd of wildebeests led by Roger is charging down the hall on the way to lunch. They start out at 10 m/s and accelerate at a constant rate for 5.35 s to reach 34 m/s by the time they reach the stairs. How quickly did Roger's velocity change?

    asked on June 17, 2013

  58. Physics

    During a head on car crash, the car is designed to slow down as its front end crumples. If a person can survive an acceleration of -33 m/s how far must the front end crumple if the car was initially traveling at 28 m/s?

    asked on June 17, 2013

  59. Calculus

    Given that f(x)=x^8h(x): h(−1)=5 hŒ(−1)=8 Calculate fŒ(−1)?

    asked on June 12, 2013

  60. physics

    Sara walks at 1.50 m/s. She notices Emily is standing at the coffee shop ahead so she accelerates at 1.55 m/s ^2. How far is emily ?

    asked on March 5, 2013

  62. Chemistry

    An electrolytic tin-coating process gives the coating 30 millionths of an inch thick. How many square meters can be coated with one kilogram, density 7.30 g/cm^3?

    asked on February 28, 2013

  63. math

    A model of a boat is 1 3/8 feet long. How long is the model of a ship that is 3 times as long, I'd the models are made to the same scale?

    asked on February 12, 2013

  64. Math

    Weatherwise is a magazine published by the American Meteorological Society. One issue gives a rating system used to classify Nor'easter storms that frequently hit New England and can cause much damage near the ocean. A severe storm has an average peak wave

    asked on December 24, 2012

  65. Math

    A friend claims that the average length of trout caught in this lake is 19 inches. To test this claim we find that a sample of 13 trout has a mean length of 18.1 inches with a sample standard deviation of 3.3 inches. The population standard deviation is

    asked on December 23, 2012

  66. Math

    Let x be a random variable representing the monthly cost of joining a gym. We may assume that x has a normal distribution and that the population standard deviation is $5.20. A fitness magazine advertises that the mean monthly cost of joining a gym is $35.

    asked on December 22, 2012

  67. Statistics

    An economist found that a random sample of 42 high school teachers had an average annual salary of $56,490. A previous study showed that the population standard deviation is $4150. Find the 99% confidence interval for µ, the average annual salary of all

    asked on December 18, 2012

  68. Microsoft word,excel

    The insert chart feature does not allow you to do what to a chart?

    asked on November 26, 2012

  69. Calc

    It is noon. A secret agent is driving a jeep through the desert in the tiny principality of Alta Loma. He is 32km from the nearest point on a straight, paved road. Down the road 16km is a power plant in which a band of international terrorists has placed a

    asked on October 21, 2012

  70. Biology..eh:/

    If trypsin and chymotrypsin become activated within the pancreas and then are released in their active forms into the bloodstream, why would this represent a potentially life-threatening situation?

    asked on July 31, 2012

  71. Physio help please

    why might an endurance athlete wish to increase his or hematocrit?

    asked on July 9, 2012

  73. Physiology-help please:(

    A child is brought to the speech therapist because she does not pronounce high-pitched sounds (like "s"). Name the sensory organ that is most likely the problem and what area of the organ is being affected? She also experiences extreme dizziness and loss

    asked on July 9, 2012

  74. calc

    The wheels are connected BT a belt. One wheel has a radius of 10inches and is rotating 40rpm. If the other wheel has a radius of 6inches, what is its angular velocity? Is 200rev/3min correct?

    asked on April 28, 2012

  75. calc

    1)Convert 1/20 of a circle to both degrees and radians. All I have is 9/180 is what I come up with. 2) what fraction of a circle does 3pi/4 represent? Is 1/4 correct? 3) a ferries wheel has cars which move at 1.5mph. If the diameter of the wheel is 600 ft,

    asked on April 28, 2012

  76. Finance

    Brand Advertising is offered a 3/10 net 40 trade discount by its supplier. In the past Brand has been able to ger away with paying for supplies on credit in 60 days. Since it doesn't have money on hand to take advantage of the discount, it tries to

    asked on April 14, 2012

  77. Chemistry

    A rxn has delta H ^0 rxn=-112kj and delta S^0 rxn =354 J/K. at what temp is the change in entropy for the rxn equal to the change in entropy for the surroundings?

    asked on April 12, 2012

  78. Chemistry

    Write balanced net ionic equAtions. D) zinc chloride and excess ammonia E) cupric phosphate and lots of ammonia A) ammonia and excess zinc sulfate

    asked on April 9, 2012

  79. CHEM

    a 250.0ml buffer solution is 0.250M in ascetic acid and 0.250M in sodium acetate. B). What is pH after addition of 0.0050mol of HCl? C). What is pH after addition of 0.0050mol of NaOH?

    asked on March 28, 2012

  80. Chem

    Find pH. A) 0.10M Zn(OH)4^-2 F) Zn(OH)2 in 0.010M ZnCl2 Q) 0.010 M Zn(NH3)4^+2 hint: fined [NH3] then kb for OH^- Im having trouble with these can someone help me.

    asked on March 26, 2012

  81. Chemistry!!!

    Consider a solution that is 0.022 M in Fe2+ and 0.014 M in Mg+2. A). If potassium carbonate is used to selectively precipitate one of the cations while leaving the other on solution, which cation will precipitate first? What minimum concentration of K2CO3

    asked on March 21, 2012

  82. Chem!!!:/

    Determine whether of not each compound will be more soluble in acidic soln than in pure water. Explain. A). Hg2Br2 B). Mg(OH)2 C). CaCO3 D). AgI I think acid, neutral,acid,neutral ??? Help please!:) thAnks

    asked on March 19, 2012

  84. precalc!!!!!

    I have to prove this: (a^3-b^3)= (a-b)(a^2+ab+b^2) How do I use long division to get (a^2+ab+b^2). I'm given..... 1). (a^3-b^3)/ (a-b) I cant get that answer. Help?

    asked on March 19, 2012

  85. precalc!!!!!

    Use long division : (a^3-b^3)/ (a-b)

    asked on March 18, 2012

  86. help chem!:/

    a) Calc. PH of 0.010 M HF and 0.030 M KF e) calc. PH Zn(OH)2 in wAter

    asked on March 16, 2012

  87. Chemistry

    1.CALCULATE pH of 1.0 L 0.010 M ascetic acid and 0.50 L 0.010 M NaOH. 2. Calculate pH of 1.0 L 0.010 M NaOH and 0.500 L 0.010M HCl Buffer help?

    asked on March 16, 2012

  88. ChemB

    CALCULATE PH OF THE SOLUTION THAT RESULTS FROM EACH SOLUTION A) 150.0mL OF 0.25M HF WITH 225.0 mL OF 0.30M NaF Help please, these buffer questions are confusing.

    asked on March 12, 2012

  89. ChemB

    A forming acid solution has a pH of 3.25. Which of these substances will raise the pH of the solution upon addition? Explain. A) HCl B) NaBr C) NaCHO2 D) KCl

    asked on March 12, 2012

  90. CHEMISTRY!!!=0

    Determine pH of each solution: 0.20 M KI i don't know how you know if you use.. K+H2O->KOH + H or... I- +H2O--> HIO +H Im thinking this one... I- + H2O --> HIO + H 0.20M--------------------0-----------0 0.20-x------------------x-------------x there is a Ka

    asked on March 1, 2012

  91. CHEMISTRY!!!=0

    Determine pH of each solution: b) 0.20 M CH3NH3I I did.... CH3NH3^+ +H2O -> CH3NH2 + H3O^+ 0.20 ---------------0--------------0 0.20-x--------------x------------x so i got... ? =x^2/0.20-x i looked up in the back of the book and found the Kb of CH3NH2 to

    asked on March 1, 2012

  92. CHEMISTRY!!!=0

    Determine the pH of each solution: (a) 0.10 M NH4Cl can someone show me how to do this one so i have the idea of how to do the rest. thanks!

    asked on March 1, 2012

  93. Chemistry

    Determine the Concentration of OH^-1 and pH of a solution that is 0.140 M F^-1. I did F- +H20 ---> HF + H20 but idk what to solve from there....

    asked on February 28, 2012

  95. Last Chemistry Question!

    How do you Convert from Moles to Liters? Man i hate not understanding test prep material!

    asked on February 20, 2012

  96. Chemistry

    How many particles are in .169 moles of Potassium Sulfide?! What is the percent composition of sulfer in that same prolem?!

    asked on February 20, 2012

  97. Chemistry

    How many moles are in 12.0 grams of Potassium Sulfide?

    asked on February 20, 2012

  98. Science n math

    What is the molecular geometry n the electron domain for HCN

    asked on February 16, 2012

  99. Math

    An inner tube for a bicycle has a diameter of 2 inches and measures about 82 inches along its circumference. What formula would you use to determine the numbers of cubic inches of air the inner tube can hold

    asked on February 2, 2012

  100. Math

    An inner tube for a bicycle has a diameter of 2 inches and measures about 82 inches along its circumference. What formula would you use to determine the numbers of cubic inches of air the inner tube can hold

    asked on February 2, 2012

  101. Chemistry

    THE RATE LAW FOR THE REACTION 2NO + 02 = 2NO2 IS FIRST ORDER IN OXYGEN AND SECOND ORDER IN NO. PROPOSE A MECHANISM IN WHICH EACH STEP IS BIMOLECULAR. SPECIFY THE SLOW STEP. I HAVE NO IDEA WHAT TI DO. HELP PLEASE? THANKS.

    asked on January 23, 2012

  102. Chemistry

    An 8.00 mass % aqueous solution of ammonia has a density of 0.9651g/ml. Calculate the molality, molarity, and mole fraction of NH3. This question seems simple but I cannot seem to remember how to do this. Help please?

    asked on December 14, 2011

  103. chem

    An industrial chemist is studying smAll organic compounds for their potential use as an auto antifreeze. When 0.243g of a compound is dissolved in 25.0 ml of water, the freezing point is -0.201 degree celcius. (A) Calculate the molar mass of compound

    asked on December 14, 2011

  104. trig

    How do i solve this equation over the interval [0degrees,360) cot(theta)+2csc(theta)=5

    asked on December 11, 2011

  106. math (taylor polynomials)

    Find the degree 3 Taylor polynomial T3(x) of the function f(x)=(7x+50)4/3 at a=2 Find the second-degree Taylor polynomial for f(x)=4x2−7x+6 about x=0 thank you! (:

    asked on November 30, 2011

  107. Math (linear approximation)

    Find a linear approximation of the function f(x)=(1+x)^(1/4) at a=1, and use it to approximate the numbers (.95)^(1/4) and (1.1)^(1/4). Round your answers to the nearest thousandth Cheers in advance!

    asked on November 29, 2011

  108. CHEM

    Compare the value you obtained from average bond energies: (260Kj) to the actual standard enthalpy of formation of gaseous benzene, 82.9 kj. What does the difference between these two values tell you about the stability of benzene?

    asked on November 8, 2011

  109. Further calculus

    1) A price p (in dollars) and demand x for a product are related by 2x^2+6xp+50p^2=10600. If the price is increasing at a rate of 4 dollars per month when the price is 30 dollars, find the rate of change of the demand. 2) a) The price (in dollars) p and

    asked on November 2, 2011

  110. Calculus

    Answers to any of these questions would be of great help! (: 1 a) At noon, ship A is 150km west of ship B. Ship A is sailing south at 50km/h and ship B is sailing north at 30km/h. How fast is the distance between the ships changing at 4:00pm? b) A

    asked on November 1, 2011

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