Popular questions and responses by Selena
  1. US Gov't

    Which Roman contribution to political theory was adapted by the Founding Fathers?

    asked on November 5, 2014
  2. Calculus

    A wire 17 inches long is cut into two pieces. One piece is bent to form a square and the other is bent to form a rectangle that is twice as wide as it is high. How should the wire be cut in order to minimize the total area of the square and rectangle?

    asked on June 13, 2015
  3. English 2

    Write an essay of at least 250 words that describes and explains examples of figurative language you found in Animal Farm when you completed your response journal on that topic. Include one example of each of the five types of figurative language from the

    asked on November 18, 2015
  4. physical education

    What nutritional supplement is recommended for helping the body handle stress? A. Zinc B. Iron C. Vitamin C D. No supplements are recommended for stress management I think its a but im not sue please help

    asked on May 31, 2013
  5. Math

    The probability of winning a large stuffed animal in the ring-toss game at a fair is 10%. Find the probability of winning at least 5 of 50 games using normal approximation. I got 0.4052 but answers says it's 0.5932. Please help!

    asked on June 25, 2017
  6. Algebra 1b!

    Could you guys check my answers? 1. Graph the function and identify the domaine and range. y=-1.5^2 Domain; (-,+) Range; (-,0) ( my answers.) 2.How is the graph of y=-2x^2-5 different from the graph of y=-2x^2 It is shifted units up it is shifted 5 units

    asked on November 8, 2013
  7. Algebra

    A ball is thrown into the air. The height in feet of the ball can be modeled by the equation h = -16t2 + 20t + 6 where t is the time in seconds, the ball is in the air. When will the ball hit the ground? How high will the ball go?

    asked on June 2, 2014
  8. Chemistry

    What is the temperature change in celsius when 29.5L of water absorbs 2.3 kwh of heat?

    asked on September 26, 2012
  9. physics

    A metal rod is 40.125 cm long at 20 °C and 40.148 cm long at 35 °C. calculate the coefficient of linear expansion of the rod for this temperature range.

    asked on February 22, 2012
  10. english

    Which word or phrase is an appositive in the sentence? When Sandy met John—a scientist and critic—she fell in love with him.

    asked on April 3, 2013
  11. English

    Why is it important that "The Story of an Hour" takes place in the nineteenth century? In the nineteenth century, women were not considered equal to men. *** The characters use nineteenth-century expressions that are hard to understand. *** Nowadays,

    asked on October 11, 2016
  12. science

    chemical reaction in cells that needs oxygen to release energy and produce carbon dioxide and water as waste 1)breathing 2)exhaling c)inhaling d)respiration

    asked on May 9, 2011
  13. Algebra

    Use the Zero Product Property to solve the equation: -3m(2m – 5) = 0

    asked on June 2, 2014
  14. math please help

    find the midpoint of a segment with endpoints at (7,9) and (-1,-1)

    asked on February 22, 2016
  15. Chemistry

    Consider the chemical reaction below equated 2N2O5 (g) -> 4NO2 (g) + O2 (g) knowing that a certain period of time, N2O5 consumption rate is 0.10 mole / s, determine for the same time interval: a) the average rate of formation of NO2 b) the average speed O2

    asked on January 20, 2016
  16. Operating Systems

    Given that main memory is composed of only three page frames for public use and that a seven-page program (with Pages a, b, c, d, e, f, g) that requests pages in the following order: a, c, a, b, a, d, a, c, b, d, e, f. Using the FIFO page removal

    asked on September 4, 2014
  17. Earth space science, check answers?

    A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for

    asked on November 15, 2013
  18. Chemistry

    Combustion analysis of 0.300 g of an unknown compound containing carbon, hydrogen, and oxygen produced 0.5213 g of CO2 and 0.2835 g of H2O. What is the empirical formula of the compound? C2H5O C3H8O2 C2H10O3 C2H5O2

    asked on September 19, 2010
  19. physics

    hiw much heat is needed to raise the temperature of 0.800 kg. ethyl alcohol form 15.0 celcius to its boiling point 78.3 celcius

    asked on August 7, 2017
  20. Algebra help?? Stuck!

    The equation y=−0.065x2+6.875x+6200 models the amount y of sugar (in pounds per square foot) produced where x is the amount of fertilizer (in pounds per square foot) used. What is the best approximate for the amount of sugar produced when 3 pounds per

    asked on May 3, 2017
  21. United states history

    What similarities do you see between the United States today and the United States of the past? What issues and problems do we continue to grapple with? What successes do we share with Americans in the past? I want to find something now in united states

    asked on December 8, 2014
  22. Algebra

    Simplify: b. 4√10-√10

    asked on June 2, 2014
  23. Check my answers?

    A. 75 % B. 12.5% C. 25% D. 3.13% E. 9.38% 3. what percentage of land on the earths surface is inhospital lands? - B 4. what percentage of earths surface is covered by land? - C 5. what percentage of land on earth is usable, for living on, but not for

    asked on November 15, 2013
  24. english

    Regarding the use of commas, which one of the following statements is accurate? A. A parenthetical use of commas is usually confusing to the reader. B. There is no need for commas that indicate added details in a sentence. C. Commas are needed to separate

    asked on May 2, 2013
  25. Math

    Find the volume of the cylinder. Use 3.14 for (π Pi) 34 m on top and 27 m down on the right. Please Help Me I try and try and nothing please please help me !!!!! :( :(

    asked on March 16, 2013
  26. physics

    Consider the following set of equations, where s, s0 and r have units of length, t has units of time, v has units of velocity, g and a have units of acceleration. Take k to be dimensionless.Identify if these are dimensionally correct or incorrect. 1)v^2=

    asked on September 2, 2012
  27. math

    jim's 10-foot garage casts a 7-foot shadow. his house has a 17.5-foot shawdow. how tall is his house

    asked on May 23, 2011
  28. math

    daffynition decoder

    asked on September 17, 2009
  29. grade 9 math!!!!!!!!!! please help

    lavre has sixty-one coins, all of whichare dimes and quaters. if the total value of the coins is $9.85, how many of each kind of coins has she?

    asked on March 8, 2009
  30. economic

    What do opportunity cost have to do with slope?

    asked on January 11, 2008
  31. chemistry

    how to balance equations

    asked on February 17, 2020
  32. Social Studies

    If an archeologist found an artifact near the Fourth Cataract, why might he or she have difficulty deciding how to display it in a museum?

    asked on March 5, 2019
  33. geometry

    If m || n and angle 5 is 32 degrees, what are the other angle measures?

    asked on November 12, 2018
  34. geometry

    find value of x and y 2x+19 and 4x+7

    asked on October 20, 2018
  35. geometry

    1/2(4x-6)=15 please help

    asked on October 20, 2018
  36. Consumer Math

    Tommy borrowed $600 at 9% for 12 months under a monthly installment plan. he must pay $8.7453 per $100 each month for 12 months. how much is his monthly installment payment?

    asked on October 9, 2018
  37. NM social studies

    How were the Maya and Aztecs civilizations similar? A. They both lacked a strong government. B. They both developed complex mathematical and calendar systems.** C. They both used weapons superior to those of early eastern civilizations. D. These

    asked on October 1, 2018
  38. math

    a right rectangular pyramid has base dimensions 7yd. by 5yd. and a height of 10yd. determine the surface area of the pyramid to the nearest square yard.

    asked on October 15, 2017
  39. Algebra

    5. Solve for x in the following system. 6x + 6y = -2 y = x I can't seem to figure this out, can someone give me some steps into solving this? I've tried so many times.

    asked on July 13, 2017
  40. math

    Josh poured 38 gallons of water into 6 buckets. He poured the same amount into each bucket. How much water did Josh pour into each bucket?

    asked on June 13, 2017
  41. Math Ms.Sue Help

    Which data value has the highest frequency? A) 1/16 B) 3/16 C) 3/8 D) 5/8 A number line with four x's above one sixteenth, one x above three sixteenths, one x above three eighths, two x's above one half, two x's above five eighth, and one x above three

    asked on March 21, 2017
  42. Math

    Why id gonzo walk around carrying ice cream and a pair os sparrows

    asked on January 27, 2017
  43. Math algebra

    David Robertson works as a chemical engineer for U.S. peroxide Corporation. David has 2500 gallons of commercial-grade hydrogen peroxide solution that is 60% pure hydrogen peroxide. How much distilled water(which is 0% hydrogen peroxide) will David need to

    asked on November 9, 2016
  44. Chemistry

    What are the elements in Group A1 on the periodic table? alkali metals alkali earth metals inner transition metals ** halogens

    asked on October 12, 2016
  45. Math3c

    1.Find an A.P. such that the sum of the first three terms is one half the sum of the next four terms,the first term being 12. 2.In an A.P.,the sum of the first three terms is 18,and the sum of the squares of these terms is 126.Find the terms.

    asked on August 17, 2016
  46. chemistry

    Some physical properties of water are shown below: melting point 0.0°C boiling point 100.0°C specific heat solid 2.05 J/g·°C specfic heat liquid 4.184 J/g·°C specific heat gas 2.02 J/g·°C ΔH° fusion 6.02 kJ/mol ΔH° vaporization 40.7 kJ/mol 80.0

    asked on May 31, 2016
  47. Math

    Sally has a recipe that needs 1 1/2 tsp. of butter for every3 cups of milk. If Sally increases the amount of milk to 13 1/2 cups of milk, how many tsp. of butter are needed?

    asked on May 19, 2016
  48. Math

    Peter's lawn is 4800 square feet in area, and he mowed 1200 square feet of it. What fraction of his lawn still needs to be mowed?

    asked on April 2, 2016
  49. math

    i am less than 45 greater than 35 divisible by 10,5 what number am i

    asked on February 15, 2016
  50. Physics

    An 1750 kg weather satellite moves in a circular orbit with a gravitational potential energy of 1.69 x 10^10 J. At it's location, free-fall acceleration is only 6.44 m/s^2. How high above Earth's surface is the satellite?

    asked on January 26, 2016
  51. Math

    what is the difference between |-3| and -3.

    asked on October 5, 2015
  52. Math

    Write the expression as a single fraction and simplify. 3/a + 3/b Is this when you cross multiply and get 3a + 3b? Except the answer has to be a fraction so I am not sure.

    asked on August 25, 2015
  53. probability

    Please help me solve this problem step by step pleaseeee! The probability that an archer hits the target is p= 0.8, so the probability that he misses the target is q = 0.2. It is known that in this situation the probability that the archer hits the target

    asked on August 12, 2015
  54. Algebra

    Can anybody help me on this problem for my Algebra 2 class, I am having a hard time tyring to solve it step by step. The probability that an archer hits the target is p = 0.8, so the probability that he misses the target is q = 0.2. It is known that in

    asked on August 12, 2015
  55. Algebra

    I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25

    asked on August 12, 2015
  56. Algebra

    I need help step by step please I keep getting a wrong answer of 252? Find the 24th term in the expansion of (a + b)^ 25

    asked on August 11, 2015
  57. Algebra

    Can anybody help me on this problem for my Algebra 2 class, I am having a hard time tyring to solve it step by step. The probability that an archer hits the target is p = 0.8, so the probability that he misses the target is q = 0.2. It is known that in

    asked on August 11, 2015
  58. Calculus

    A strong swimmer is one mile off shore at point P. Assume that he swims at the rate of 3 mile per hour and walk at the rate of 5 miles per hour. If he swims in a straight line from P to R and then walks from R to Q, how far should R be from Q in order that

    asked on June 13, 2015
  59. Logs

    log (sqrt4(x^16 / y^4)) What is the value of the expression when logx=8 and logy=1? My work: x=10^8 y=10 I tried to plug these in but my calculator but it said "overflow." Is there an easier way to do this?

    asked on May 31, 2015
  60. Math

    (-3,5) (-2,-6) I do not understand equation of a line

    asked on March 18, 2015
  61. physics

    calculate the linear speed of a point on the record at the beginning and the end of the record that rotates at 33rev/min r1=7cm,r2=15cm

    asked on March 10, 2015
  62. math

    what is 82 over 100 in simplest form?

    asked on November 17, 2014
  63. Geometry

    P->P'(-8,-3) for the glide reflection where the translation is (x,y)->(x,y-5) and the line reflection is x=-5. what are the coordinates of P? (-8,-8) (-8,2) (-2,-3) (-2,2)

    asked on October 29, 2014
  64. English

    1. Why does George try to prevent Lennie from playing with small animals? (1 point) He doesn't want Lennie to have a pet until he proves he can keep out of trouble. He is worried that Slim will be angry if Lennie plays with the puppies. He is embarrassed

    asked on October 13, 2014
  65. Chemistry

    Weight of the Rock Salt Sample: .343 (g) Weight of the Rock Salt Solution: 9.910 (g) Trial #1 Trial #2 Trial #3 Weight of Rock Salt Solution Delivered (g) : .89 1.17 .786 Weight of AgNO3 Solution Delivered (g) : 1.53 .548 .786 Concentration of AgNO3 :

    asked on October 4, 2014
  66. Physics

    I don't know if my answers are right. D: 1)Why is a time interval always positive? I'm not really sure but I wrote down something with vectors and scalars. 2)If the average acceleration of a car is zero in a given time interval, what can you tell about the

    asked on October 1, 2014
  67. Physics

    Little Timmy falls down a well and hits the water 1.5s later. Determine the distance from the top of the well to the water below. Just an equation would be fine. Thanks in advance.

    asked on October 1, 2014
  68. Algebra 2

    I need to use zero product property on these equations and I just need a few examples to get myself started on the other problems since I don't understand it at all. :c Help is appreciated. Thanks in advance. f(x)=x^2+8x+12 g(x)=6x&2+20x-16

    asked on October 1, 2014
  69. Physics

    Starting from rest, Mr.M's bus achieves a velocity of 25 m/s in a distance of 1.0 km. Find the time and the acceleration. I don't know which formula to use. Delta T = Vf - Vi / Aavg ?

    asked on September 23, 2014
  70. Physics

    A car enters the freeway with a speed of 7.2 m/s south and accelerates uniformly for 4.2 km in 4.0 min. How fast (in m/s) is the car moving after this time? I only need the formula. My teacher gave us a list but did not tell the class which equation is for

    asked on September 23, 2014
  71. 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 on September 18, 2014
  72. AP Calculus

    Find an equation of all tangent lines for the curve x^2-xy+y^2=16 x=-2 2x-(xy'+y(1))+2yy'=0 2x-xy'+y+2yy'=0 y'(-x+2y)=-2x-y y'=-2x-y/-x+2y y'=-2(0)-y/-(0)+2y y'=-y/2y Not sure what to do now?

    asked on September 14, 2014
  73. physics

    To estimate how high the cliff is you throw a rock off the edge and 7.8 s later you hear the rock hit the ground. The speed of sound is 330 m/s. Ignoring air resistance how high is the cliff?

    asked on September 1, 2014
  74. Math

    The president of Texas state University makes three times as much money as one of the department heads. If the total of their salaries is 290,000, find each worker's salary.

    asked on June 11, 2014
  75. Algebra

    What are the solutions to the system? (Hint: graphing is the easiest!) y = x2 + 2x - 45 y = -3x + 5

    asked on June 2, 2014
  76. Chem

    What will the products be for Ni(s) + 2Na^+(aq)? I don't think this is even possible, so will this reaction even be possible?

    asked on March 2, 2014
  77. Chem

    What is the product for the reaction of Ni(s) + 2Na^+(aq)? I don't think this is possible no?

    asked on March 2, 2014
  78. Chemistry

    3) A student mistakenly uses the cuvette containing the most dilute standard solution, rather than the cuvette containing deionized water, as the blank solution. I don't understand why there would be lower concentration of Cr(VI) ion...

    asked on March 2, 2014
  79. Algebra 1b!

    1. Find the excluded value of x for the polynomomial expression 4x/6 a. 6 b. -6 c. 1/6 d. -1/6 2. Simplifly 3-2x/7 + 4x+5/7 a. 2x+8/14 b. 2x+8/7

    asked on December 9, 2013
  80. Earth space science

    I need help with this. the map doesnt show anything and idk how to post the map on here... Match the cities A,B,C, and D with the weather description of the surface model (To the right of each letter) a. city A b. City B c. City C d. City D A. Pressure of

    asked on November 14, 2013
  81. English!

    This is what i got so far but i need help with an opening paragraph and conclusion Mark twain used huck as narrator to see the innocent view of these difficult adult themes. in the eyes of a child, the morality of the situations he finds are much more

    asked on November 7, 2013
  82. English

    For english i'm doing facts about mark twain and if i put " Around all of the facts, is it still plagiarism?

    asked on November 7, 2013
  83. Huckleberry Finn

    Explain how the author created the character (characterization). Explain the theme of a piece of literature. Compare and contrast two pieces of literature. Write about one of the authors we have studied.

    asked on November 7, 2013
  84. physical science

    I am having a little trouble with this problem. can someone please HELP! During a race, a runner runs at a speed of 6m/s. 2 seconds later, she is running at a speed of 10 m/s what is the runner's acceleration?

    asked on August 7, 2013
  85. math

    How would I solve this; John is paid at an hourly rate of $15 and over time rate of 1.5 times his hourly rate. If john puts in w regular hours and y overtime hours in a week, what is his total wage for the week? (Monday-Friday

    asked on July 1, 2013
  86. math

    1/2 + (-5/6) =?

    asked on June 28, 2013
  87. english

    Which of the following is not a correct option for writing out the date in question? A. 25 January 2000 B. January 25, 2000 C. 2000, January 25 D. 01/25/00 I think this one D

    asked on May 2, 2013
  88. englis

    8. Which of the following options accurately represents the steps involved in the writing process? A. Write first draft, edit, revise, write final draft B. Write first draft, revise, proofread, write final draft C. Plan, write first draft, edit, write

    asked on May 1, 2013
  89. english

    3. Which one of the following sentences best describes paraphrasing? A. Janette listened to the speaker and took notes. B. Janette listened to the speaker, asked questions, and wrote a report. C. Oscar studied Dr. Frost's article and summarized it in his

    asked on May 1, 2013
  90. Social Studies

    Which state is the least densely populated? 1. Alaska 2. Hawaii 3. Minnesota 4. New Jersey My Answer: # 2 Hawaii

    asked on March 19, 2013
  91. Pre-Algebra

    For numbers 1–3, find the indicated measurement of the figure described. Use 3.14 for (pi) and round to the nearest whole number. 1) Find the surface area of a sphere with a radius of 8 cm. a. 268 cm2 b. 804 cm2 c. 2,144 cm2 d. 201 cm2 2) Find the

    asked on March 13, 2013
  92. algebra


    asked on February 24, 2013
  93. trig

    a ship leaves port with a bearing of S 42deg W after traveling 7 miles, the ship turns 90deg and travels on a bearing of N 52deg W for 10 miles at that time, what is the bearing of the ship to the port?

    asked on October 29, 2012
  94. Algebra 2

    To rationalize the denominator of 4/(2+√8), Brittany multiplied by (2-√8)/(2-√8) and Justin multiplied by (1-√2)/(1-√2). Explain why both are correct.

    asked on October 22, 2012
  95. physics

    What is its speed after 1.87 s if it accelerates uniformly at −4.31 m/s^2? Answer in units of m/s

    asked on September 3, 2012
  96. physics

    The initial speed of a body is 2.14 m/s. What is its speed after 1.87 s if it accelerates uniformly at 4.31 m/s^2? Answer in units of m/s

    asked on September 3, 2012
  97. physics

    A body moving with uniform acceleration has a velocity of 10.2 cm/s when its x coordinate is 3.73 cm.If its x coordinate 2.33 s later is −2.74 cm,what is the x-component of its acceleration?Answer in units of cm/s^2

    asked on September 3, 2012
  98. physics

    What is the average acceleration a between 14 s and 16 s?

    asked on September 3, 2012
  99. physics

    What is the average velocity v between 0 s and 6 s?

    asked on September 3, 2012
  100. physics

    A certain car is capable of accelerating at a rate of 0.57 m/s^2.How long does it take for this car to go from a speed of 56 mi/h to a speed of 66 mi/h? 1mi/h = 0.447 m/s.Answer in units of s

    asked on September 3, 2012


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