Popular questions and responses by Kaitlyn
  1. Calculus

    Suppose that 5 J of work is needed to stretch a spring from its natural length of 28 cm to a length of 36 cm. (a) How much work is needed to stretch the spring from 32 cm to 34 cm? (Round your answer to two decimal places.) (b) How far beyond its natural

    asked on January 23, 2016
  2. math

    The sum of seven and the quotient of a number x and eight.

    asked on May 13, 2019
  3. Calculus

    Graph the curve. Find the exact length of the curve. x = 2et cos(t), y = 2et sin(t), 0 ≤ t ≤ π

    asked on January 19, 2016
  4. Algebra

    The stopping distance D in feet for a car traveling at x miles per hour is given by d(x)= (1/12)x^2+(11/9)x. Determine the driving speeds that correspond to stopping distances between 300 and 500 feet, inclusive. Round speeds to the nearest mile per hour.

    asked on June 9, 2013
  5. Geometry - Area

    Find the area of a regular hexagon with an apothem 10.4 yards long and a side 12 yards long. Round your answer to the nearest tenth.

    asked on April 15, 2014
  6. World Geography

    1.Which of the following demographic characteristics distinguishes Europe's population from that of Asia? A.) More Europeans inhabit rural areas. B.) The European population is much younger. C.) Europeans are more concentration in urban areas. D.) Europe

    asked on May 10, 2013
  7. Chemistry

    If argon has a volume of 5.0 dm3 and the pressure is .92 atm and the final temperature is 30 degrees celcius and the final volume is 5.7 L and the final pressure is 800 mm Hg, what was the initial temperature of the argon?

    asked on November 19, 2012
  8. Algebra 2

    Write the Expression as a complex number in standard form. 5i(3+2i)(8+3i)

    asked on September 22, 2014
  9. World Geography

    1. During the late 18th and mid-19th centuries, Europeans and North Americans were attracted to nearby coastal waters due to potential economic gains from? A.) Catching trout and cod fish. B.) Catching seals and whales. C.) Shipbuilding. D.) Finding riches

    asked on May 9, 2013
  10. Math

    An aluminum cylindrical juice can has a height of 4 in. and a radius of 6 in. How many square inches of aluminum are needed to make the can?

    asked on May 23, 2010
  11. geometry

    B is the midpoint of AC. A has coordinates (-3,4), and B has coordinates (-1 1/2,1). Find the coordinates of C. Did i get the right answer? (2)-1 1/2=(2)-3+x(over 2) -3-3=3+x-3 -6=x (2)1=(2)4+y(over 2) 2-4=4+y-4 -2=y The coordinates of C are (-6,-2)

    asked on August 26, 2015
  12. physics

    A window washer is standing on a scaffold supported by a vertical rope at each end. The scaffold weighs 210 N and is 2.80 m long. What is the tension in each rope when the 710 N worker stands 1.80 m from one end? smaller and larger.

    asked on December 12, 2010
  13. Calculus

    Use Simpson's Rule with n=10 to estimate the arc length of the curve. Compare your answer with the value of the integral produced by your calculator. x = y + y^(1/2), 1 ≤ y ≤2

    asked on February 21, 2016
  14. physics

    A military helicopter on a training mission is flying horizontally at a speed of 75.0m/s when it accidentally drops a bomb (fortunately, not armed) at an elevation of 310m . You can ignore air resistance. a:How much time is required for the bomb to reach

    asked on September 22, 2014
  15. Science Help Plz

    which of the following statements about earths atmosphere is true? a. earths atmosphere contains 78 percent water vapor which is essential to life b. earhts atmoshpere contains 21 percent oxygen c. earths atmosphere contains carbon dioxide which all life

    asked on February 19, 2015
  16. psychology

    8. Cognitive psychology can best be described as:

    asked on February 6, 2011
  17. Math

    An odd number is less than 160 and has exactly three defferent prime factors. What is the number? Explain your reasoning. ??? AAAH! help!

    asked on September 17, 2009
  18. Science

    thermal energy is cause by the motion of ?

    asked on January 18, 2018
  19. Chemistry

    How many moles of carbonate ions, aluminum ions, and oxygen atoms are present in 39.0 g aluminum carbonate?

    asked on February 8, 2016
  20. Chemistry

    Assume the reaction of 55.25 g of Ge in the following reaction to determine the other quantities. 3Ge + 2N2 -> 1Ge3N4

    asked on February 1, 2016
  21. Chemistry

    N2+3H2-> 2NH3 how many moles of hydrogen are needed to completely react with 2.6 moles of nitrogen?

    asked on February 11, 2015
  22. AStronomy/ Math

    I do not understand how to do one of my online homework questions: What is the Schwarzschild radius of a 100 million-solar-mass black hole? The mass of the Sun is about 2 × 1030 kg, and the formula for the Schwarzschild radius of a black hole of mass M

    asked on May 4, 2014
  23. Math Help please Check my answer

    You have $59.95 in your wallet and want to buy some new CDs. If the CDs are $11.99 each, what number of CDs, x, can you buy? Write and solve an inequality. My answer: 11.99x ≤ 59.95 11.99x/11.99 ≤ 59.95/11.99 x ≤ 5

    asked on January 14, 2014
  24. Geometry

    1.) A skateboard ramp has a 158° entry angle. Find the measure of ∠1. 2.) Which of the following equations is parallel to the line passing through A(-2, 7);B(-2, -2)? 3.) Which of the following equations would graph a line parallel to 3y = 2x - x + 5?

    asked on October 29, 2013
  25. chemistry

    Determine whether a solid forms when solutions containing the following salts are mixed. If so, write the ionic equation and the net ionic equation. KCl and Na2S

    asked on October 27, 2013
  26. Algebra 1

    d is to 4 as 32 is to 56. if answer is a fraction change to decimal

    asked on October 3, 2013
  27. Algebra 1

    A triangle has a perimeter of 81 inches. The side lengths can be found by x, 3x-1, and 4x+2 what is the value of x?

    asked on October 3, 2013
  28. Math

    What is an algebraic expression for "49 more than q"

    asked on October 1, 2013
  29. Algebra

    A motorcycle breaks down and the rider has to walk the rest of the way to work. The motorcycle was being driven at 45mi/hr and the rider walks at a speed of 6mi/hr. Teh distance from home to work is 25 miles and the total time for the trip was 2 hours. How

    asked on November 11, 2012
  30. Physics Inertia!

    Rank from fastest to slowest. a)a solid ball rolling down a ramp without slipping b)a cylinder rolling down the same ramp without slipping. c)a block sliding down a firctionless ramp with the same height and slope. Select all that apply. The ball is

    asked on October 30, 2012
  31. Astronomy

    If we assume the Sun is made totally out of hydrogen, how many hydrogen atoms are contained with the Sun? If the Sun converts half of these hydrogen atoms into helium over its lifetime of about ten billion years, how many hydrogen atoms are converted per

    asked on November 22, 2011
  32. Chemistry

    Write the balanced camical equation for the complete combustion of propane C3H8, a fuel used in gas grills (carbon dioxide and water are products). This is the WRONG answer that I got... 2(C3H8) + 7(02) -> 3(CO2) + 8(H20) Can anybody help me? 2(C3H8) +

    asked on February 8, 2007
  33. algebra

    So... I know the answer to the question because it's something we worked on in class... but there's one part I don't get. Factoring m - 2n + m^2 - 4n^2 m - 2n + (m + 2n) (m - 2n) Then there's a 1... 1(m - 2n) (m + 2n) (m - 2n) AND my question is... How and

    asked on October 26, 2006
  34. Science

    under which conditions are clouds formed from ice crystals?

    asked on April 12, 2019
  35. Art

    What did the Vogel's artworks communicate about their historical interests? They collected works that were culturally popular. They collected works that depicted revolutions. They collected works that depicted the history of cities. ( my choice ) They

    asked on March 29, 2019
  36. Math

    What is the composite figure? There is this trapezoid that has a triangle on the side. the base of the trapezoid is 17cm and the base of the triangle is 19cm, the height of trapezoid is 22 cm and 10cm on the other side, and the top of the trapezoid is

    asked on March 28, 2019
  37. Physics

    In the figure, the meterstick's mass is 0.130 kg and the string tension is 2.30 N . The system is in equilibrium. A) Find the unknown mass m. B) Find the upward force the fulcrum exerts on the stick. I found part A and the answer is .634kg but I can not

    asked on March 27, 2017
  38. Math

    Paige cuts a square out of a circular pizza. The corners of the square lie on the circumference of the pizza.to the nearest whole number, what percent of the pizza is left when paige removes the square.

    asked on November 11, 2016
  39. Math

    In scientific notation, what is the product of 1.2 × 10^3 and 1.4 × 10^2? Express your answer to two significant figures. Can you also explain how to do this? Thanks!

    asked on November 11, 2016
  40. Math

    The tires on a car are 25 inches in diameter. If the car is moving at a constant speed of 65 miles per hour, how many rotations per second is the front left tire making? Express your answer as a decimal to the nearest tenth. (1 mile = 5280 feet)

    asked on November 11, 2016
  41. Calculus

    Use Euler's method with step size 0.2 to estimate y(1), where y(x) is the solution of the initial-value problem given below. (Round your answer to four decimal places.) y' = 1 − xy y(0) = 0 I don't even know how to start!

    asked on March 15, 2016
  42. Social Studies

    witch result of the compromise of 1850 did not benefit the north? a-the fugitive slave law b-californias admittance tt he union c-ending the slave trade in the district of columbia d-new mexico not being designated as a slavery trade Is it a?

    asked on February 1, 2015
  43. business

    Discussing the future of management, Manager A maintains that we can expect a continued rise of virtual management and growth in technology. Manager B acknowledges that Manager A’s projections are likely, but incomplete. He adds that there will also be

    asked on December 5, 2014
  44. physics

    In the Bohr model of the hydrogen atom, an electon mass= 9.11 x 10^-31 kg orbits a proton at a radius of 5.29 x 10^-11 m. The proton pulls on the electron with a force of 8.20 x 10^-8N. what is the speed of the electron? what is the period of the electron?

    asked on September 30, 2014
  45. math

    Quinn used a scale drawing to build a soccer field near his school. Initially, he wanted the field to be 28 yards long and 17.5 yards wide. He decided to change the length of the field to 36 yards. If the width is to be changed by the same scale factor,

    asked on January 29, 2014
  46. math (please help)

    1. Write the equation for the horizontal line that contains point G(-8, 8). 2. What is an equation for the line that passes through points (-1, -4) and (1, 4)? Write the equation in slope-intersect form. 3. Write an equation for the vertical line that

    asked on October 31, 2013
  47. math

    1. A skateboard ramp has a 158º entry angle. Find the measure of ∠1. A.) 22º B.) 68º C.) 78º D.) 58º 2. Which of the following equations parallel to the line passing through A(-2, 7);B(-2, -2)? A.) y = -2 B.) y = x C.) 3x = 5 D.) -2x = 7y 3. Which

    asked on October 30, 2013
  48. Math

    Write an algebraic expression for "55 more than the product of 134 and n"

    asked on October 1, 2013
  49. math

    In a class of 50 students, 35 are Democrats, 17 are business majors, and 6 of the business majors are Democrats. If one student is randomly selected from the class, find the probability of choosing a Democrat or a business major.

    asked on April 28, 2013
  50. PHYSICS please!!!!

    A cube of wood and a cube of concrete, each 0.17 m on a side, are placed side by side. One of the long faces of the rectangular prism formed by the two cubes is held at 17°C, and the opposite long face is held at 32°C. What is the total rate of heat

    asked on June 22, 2012
  51. Physics

    A particle starts from xi = 10 m at t0 = 0 and moves with the velocity graph shown in the graph below. Sorry for no graph it's at 12 m/s when time is zero. Moves down consistently so that it is 8 at 1 4 at 2 0 at 3 and negative 2 at 4. (a) What is the

    asked on September 5, 2011
  52. social studies

    In 1963 Viginia's public schools opened their doors to:...

    asked on February 2, 2011
  53. Algebra

    Solve each system using substitution. Tell whether the system has one solution, infinitely solutions, or no solution. 1.) 2x + y = -12;-4x - 2y = 30 2.) 1/3y = 7/3x + 5/3;x - 3y = 5 3.) Y = X - 7;3x - 3y = 21

    asked on February 7, 2020
  54. English

    how does the setting of To Kill A Mockingbird influence the characters' traits, emotions, and motivations

    asked on January 21, 2020
  55. social studies

    Why were the Olympic Games held the first time?

    asked on May 6, 2019
  56. Math

    How do you convert Milligrams to grams?

    asked on April 25, 2019
  57. Math

    Can someone explain to me how to measure circles? Help

    asked on April 24, 2019
  58. Math

    how many sides does a cube have? Not faces!

    asked on April 24, 2019
  59. English

    What does overview mean?

    asked on April 16, 2019
  60. Bible Journaling

    how do you start bible journaling

    asked on April 16, 2019
  61. math

    what is the median for 25,26,31,39,32,57

    asked on April 16, 2019
  62. Weather science

    Which type of weather technology often carries cameras that can make images of Earth's surface, clouds, and snow cover?

    asked on April 15, 2019
  63. Technology

    What is intellectual property?

    asked on April 15, 2019
  64. Science

    what is precipitation, evaporation, condensation, and transpiration?

    asked on April 12, 2019
  65. sports

    is volleyball the best sport to play?

    asked on April 11, 2019
  66. Health and P.E.

    A dandruff shampoo claims it can eliminate all dandruff flakes for 6 months. Which would be a good strategy for proving the claim is true? A.) Ask the one person you know who used it to verify if it worked for her. B.) Ask the cashier if a lot of people

    asked on April 9, 2019
  67. Christianity

    Is God real? what evidence is there?

    asked on April 9, 2019
  68. heath and pe

    What reason do studies show why more people with high blood pressure and diabetes live In the suburbs than in the city? There is four answers that I don't know if their corect; 1.There are much better doctors in the city who treat those diseases more

    asked on April 9, 2019
  69. Science

    Water Cycle Model? How do you know if your water cycle model works?

    asked on April 3, 2019
  70. Math

    How do you find the missing height of a triangle?

    asked on April 3, 2019
  71. History

    I need help within the hour thanks. Kaitlyn. Why did Arabic numerals replace Roman numerals? A.They were more accurate. B.They were based on the Quran. C.They made it easier to perform calculations.** D.They were easier to read. Which of the following were

    asked on January 17, 2019
  72. Math

    Can you check me answers 6 eggs in 7 days=8222 122 patients in 4 weeks=305 $8.43 for 3 pounds =281 25 letters in 4 days=.625 2 pay raises in 3 years=.66 repeated 15 pounds in 6 weeks=25 8 glasses every 24 hours=.33

    asked on November 29, 2018
  73. Social Studies

    Describe how and why the middle colonies had such a diverse population.

    asked on February 22, 2018
  74. math

    write the equation in slope-intercept form. What are the slope and y-intercept? -12x+13y=-10

    asked on January 8, 2018
  75. Math

    How to solve 0.67 x 0.3?

    asked on October 3, 2017
  76. Math


    asked on September 23, 2017
  77. Physics

    A Frisbee gets stuck in the top of a tree, 60 meters above the ground. What is the smallest initial velocity you could throw a ball to reach the Frisbee and dislodge it? A. 48.5 m/s from an angle of 45 degrees above the horizontal B.48.5 m/s from directly

    asked on September 18, 2017
  78. Algebra

    DFW is 180 miles from Abilene. At the same time, one car leaves Abilene traveling to DFW at a speed of 60 mph while a second car leaves DFW traveling to Abilene at a speed of 70mph. How long will it take the two cars to meet?

    asked on September 17, 2017
  79. Algebra

    Two cars are driving from Abilene to DFW. The first car travels at 60 miles per hour it leaves Abilene 20 minutes before the second car. The second car travels 70 miles per hour how long will it take the second car to catch and pass the first car

    asked on September 17, 2017
  80. Science

    Can you see organelles of plants using a simple microscope? If yes, what is it?

    asked on September 2, 2017
  81. ECONOMICS HELP!!!!!!

    How did the election and Donald trump affect the stock market. I know I can just Google it but I cant seem to find the exact paragraph that explains it. Please help me. God Bless, Kait

    asked on May 16, 2017
  82. Chemistry

    The vapor pressure of pure methanol at 25 degrees Celsius is 127.2 mm Hg. If 12.20 g of potassium chloride are dissolved in 200.0 g of methanol, what is the vapor pressure of the solution? A.123.9 mmHg B.3.256 mmHg C.104.3 mmHg D142.7 mmHg

    asked on May 14, 2017
  83. Educational thechnonolgy

    Lines are used in a design to _____.Choose all that apply. A.Create movement B.lead the eye across the page C.describe the relationship between certain colors D.divide a page into sections

    asked on May 7, 2017
  84. Physics

    Question: You have a 4.5 kg lead block at room temperature. Part A: Find the energy required to raise the lead’s temperature to its melting point. Part B: Find the energy required to melt the lead once it’s reached the melting point. I got the answer

    asked on April 21, 2017
  85. Math #3

    Which is likely to have a mass close to 3 kilograms? A: a 5-year-old child B: a bowling ball*** C: a lemon D: an adult lion Can someone check this plz

    asked on April 13, 2017
  86. Math

    A bean plant was 1.5 meters high one week ago. In 7 days it grew 15 centimeters. Find the current height of the bean plant. A)1.35 m B)13.6 cm C)1.65 m *** D)1.85 cm Can someone check this plz?

    asked on April 13, 2017
  87. Social Studies Please help

    Which statement best evaluates the results of Greece's membership in the European Union A. Greece's overall economy has improved because of increased trade. B. Greece's overall economy has improved because the euro is a strong Currency. C. Greece's overall

    asked on April 12, 2017
  88. SS Help

    Which statement best evaluates the results of Greece's membership in the European Union? MEDAL!!! A) Greece's overall economy has improved because of increased trade. B)Greece's overall economy has struggled because the euro is a strong currency. C)

    asked on April 11, 2017
  89. Ed Tech

    Selena needs to publish her research about Chinese culture. Her research includes audio clips from an interview with a Chinese citizen, written notes, and photographs from her tour of a Chinese exhibit in a local museum. Based on each application’s

    asked on April 10, 2017
  90. algebra

    the length of a rectangle is 5 times its width. if the length is decreased by 3 meters, and the width is increased by 10 meters, the perimeter will be 374 meters. find the length of the original rectangle.

    asked on November 14, 2016
  91. Science

    What propity makes a metal useful in a electical devices

    asked on September 26, 2016
  92. Chemistry

    How much heat energy is required to heat up 50.0 grams of water from 20.2 degrees Celsius to 34.2 degrees Celsius? I want o use the Q=mc(change in temp) formula but I am only given the m and difference in temp in this question so I am not sure of what I am

    asked on September 4, 2016
  93. math

    Jose was 62 years old nineteen years ago. how old is he now?

    asked on April 15, 2016
  94. Math

    you bought 10 gallon jugs of juice for $26 if apple juice cost $2 per gallon and orange juice costs $3.50 per gallon how many of each type did he buy

    asked on March 29, 2016
  95. Calculus

    (b) Find a solution of the initial-value problem. (Hint: First verify that all members of the family y = 4/x + C are solutions of the given equation.) y' = −1/4y^2 y(0) = 0.25

    asked on March 16, 2016
  96. math

    Given the data set (5, 9), (13, 12), (23, 16), which of the following equations best represents a line of best fit? y = three fourthsx − 7 y = four fifthsx + 7 y = three over twox + 7 y = two thirdsx − 7

    asked on March 11, 2016
  97. Calculus

    Sketch the region on paper. If it is a finite region, find its area. Round your answer to three decimal places. (If the area is not finite, enter NONE.) S = {(x,y) | x ≥ −4, 0 ≤ y ≤ e-x/2}

    asked on February 23, 2016
  98. Calculus

    Internal 1/sqrt(1+x^3) from [0,2] and n=10 (a) Use the Trapezoidal Rule to approximate the given integral with the specified value of n. (b) Use the Midpoint Rule to approximate the given integral with the specified value of n. (c) Use Simpson's Rule to

    asked on February 19, 2016
  99. Calculus

    Consider the following depiction of a tank with radius r = 9 meters with a spout of height h = 4.5 meters. A tank is is half full of oil that has a density of 900 kg/m3. Find the work W required to pump the oil out of the spout. (Use 9.8 m/s2 for g and

    asked on February 8, 2016
  100. chemistry

    How many moles of chlorate ions, zinc ions, and oxygen atoms are present in 0.433 mol of zinc chlorate?

    asked on February 8, 2016


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