Newest questions and responses by ben
  1. Social studies

    What strategy did the allies agree upon in order to win World War II

    asked on February 12, 2019
  2. History

    Why did Britain and France adopt a policy of appeasement when meeting with Hitler at the Munich conference

    asked on February 7, 2019
  3. Science

    How are continental glaciers hours different from Valley Glaciers

    asked on February 7, 2019
  4. math

    need help math proportions lesson 3 question 5

    asked on January 29, 2019
  5. Math. Trig

    Find a positive angle less than 2piπ that is coterminal with the given angle. StartFraction 11 pi Over 3 EndFraction 11π/3

    asked on January 24, 2019
  6. Geometry

    Find the value of x in the right triangle x◣x+1 7

    asked on December 8, 2018
  7. Geometry

    Find the value of x in the right triangle if the sides given are x, x+1 and 7. |\ x | \ |__\

    asked on December 8, 2018
  8. Art

    Is there right or wrong in art?

    asked on November 20, 2018
  9. Science

    Why are we dividing by a percentage yield and what are the results?

    asked on October 28, 2018
  10. Calculus

    Differentiate the following function. f(t) = 6/7t^6 − 7^t4 + 4t

    asked on September 28, 2018
  11. social studies

    Which of the following is a likely reason that someone today might decide to move from a city in the Midwest to the South? 1. A. the decline of manufacturing in the Midwest B. the many high tech jobs available in the South----- C. urban overcrowding in the

    asked on September 11, 2018
  12. Physics

    An object is attached to a hanging unstretched, ideal and massless spring and slowly lowered to its equilibrium position, a distance of 5.3 cm below the starting point. If instead of having been lowered slowly the object was dropped from rest, how far then

    asked on June 8, 2018
  13. math

    Find the sum of the first 15 terms of the geometric sequence. ∞ Σ 3n − 1 n = 1

    asked on May 13, 2018
  14. math

    Find the sum. (Round your answer to two decimal places.) 5 Σ 200(1.09)^n n = 0

    asked on May 13, 2018
  15. math

    Find the sum of the infinite geometric series, if possible. 12 + 10 + 25/3 + 125/18 + ...

    asked on May 13, 2018
  16. Math

    Mark borrowed $200 at 12% compound interest for two years. If he makes no payments. How much interest will he owe at the end of the second year? A $48.00 B $50.88 C $26.88 D $24.00***

    asked on April 8, 2018
  17. Sociology

    1. List two or more messages you received from your parents about who you are and what you were about. Discuss how the messages were conveyed. Messages can be delivered directly through what our parents say to us or say to others about us. They can also be

    asked on April 2, 2018
  18. Math

    A pencil holder shaped like a triangular prism is shown in the picture. The height of the pencil holder is 12 cm, and the volume of the pencil holder is 216 cm3. What is the area of the base? A 144 Square Centimeters B 12 Square Centimeters C 2592 Square

    asked on April 2, 2018
  19. Math

    I think I have my answer but I still need help Daniellewillusetheinstructionsintheboxbelow to make a cleaning solution. Add 13 cups of water to every 2 cups of concentrated cleaner. Which of the following proportions can be used to find w , the number of

    asked on March 26, 2018
  20. Calculus

    Sarah is filling ice cream cones with shaving cream to hand out to trick or treaters. The cones have a largest radius of 3 centimeters and a depth of 13 centimeters. She fills them at a rate of 5 cubic centimeters per second. (She works carefully so that

    asked on March 10, 2018
  21. algebra

    Sound travels about 340 m / s. The function d (t) = 340t gives the distance d (t), in meters, that sound travels in t seconds. How far does sound travel 59 s? ​d(59​)=? meters

    asked on March 9, 2018
  22. Honors Geometry

    The diagonals of a kite are 21 and 24 and the shorter diagonal bisects the longer. If the kite has exactly one right angle, what are the side lengths of the kite?

    asked on February 21, 2018
  23. Chemistry

    Is the equivalence point always supposed to be equal to 7. I just did a lab and when plotting my data I calculated my equivalence point to be around 8.

    asked on December 21, 2017
  24. Physics

    A box is pushed by a 750 N force that acts at a 30 degree angle with a friction less surface.The force pushes a box that has a weight of 500N a distance of 15 meters. How much work is done on the box?

    asked on December 14, 2017
  25. Econ

    Suppose that you are a bicycle producer. In three to four sentences, explain why you are willing to supply the most bicycles at the highest price.

    asked on November 1, 2017
  26. Math

    Amy bought a diamond ring for $6,000. If the value of the ring increases at a constant rate of 5.8% per year, how much will the ring be worth in twenty-one years?

    asked on October 11, 2017
  27. To @Bosnian

    I posted a follow up question to your answer to my recent question about a sum of a series.Hope you can check it. Thank you!

    asked on July 29, 2017
  28. Math

    How do we find the sum of n terms of the series, 1+(4/7)+(7/49)+(10/343)+..... I know that it can be written as a combination of an arithmetic and geometric progression. 1=(4+3r)/(7^m) ; (r=-1 , m=0) 4/7=(4+3r)/(7^m) ;(r=0,m=1) But how do we find the sum

    asked on July 29, 2017
  29. Math

    A and B are two events. P(A/B)=5/11 P(A~B)=9/10 (~ indicates either A or B) P(B)=x How do we find P(A^B')? (^ indicates both A and B) I got, P(A^B)=5x/11 P(A)=(9/10)-(6x/11) Is there any way we can get a relationship between P(A^B) and the required

    asked on July 28, 2017
  30. Physics

    Your vertical spring accelerometer has a 200 g mass hanging from it. You climb aboard the roller coaster and watch the accelerometer read 0.4 g for 3 seconds while descending and read 1.5 for 2 seconds while climbing the next peak. The car weighs 2000 kg.

    asked on June 1, 2017
  31. math

    The population of town N increases every year by 2%. What will be the population of this town in 3 years if it is currently nine hundred thousand people. (Round the answer to a whole number.)

    asked on May 29, 2017
  32. math

    A purchase, with shipping and handling, cost $39.00. What percent of the price of the purchase was spent on shipping and handling if the price of the item was $35.10?

    asked on May 29, 2017
  33. math

    Find new percentages, and find the actual quantities:75% of 75% of 256

    asked on May 29, 2017
  34. math

    The volume of industrial production increased ten times. What was the percent increase?

    asked on May 29, 2017
  35. math

    The population of town N increases every year by 2%. What will be the population of this town in 3 years if it is currently nine hundred thousand people. (Round the answer to a whole number.) Please help

    asked on May 29, 2017
  36. math

    A tank containing 64 gallons lost 6 1/4 % through leakage. How much was left in the tank?

    asked on May 29, 2017
  37. science

    A transverse wave has an amplitude of 5 cm, a frequency of 60 Hz and a distance from crest to next trough of 15 cm. Identify the wavelength of this wave. Please someone help asap I cant figure this out. Is there a formula?

    asked on May 17, 2017
  38. physics

    Radon 86222Rn is a radioactive gas with a half-life of 3.82 d. If there are initially 400 decays/s in a sample, how many radon nuclei are left after 2 d ? Please help, I don't understand how to do this.

    asked on May 14, 2017
  39. math

    Can someone help me complete the perfect square with this trinomial, I don't understand how to do it. Thanks 1/(x^8) -1/(x^4) +1

    asked on April 11, 2017
  40. Physics

    In a single-slit diffraction pattern, the distance between the first and second minima is 4.2cm on a screen 3.8m from the slit. Find the slit width given that the wavelength of the light is 530nm. Answer in mm Somebody please help!

    asked on April 9, 2017
  41. Math

    Find the probability that with one spin, the spinner will not stop on A. Write the answer as a reduced fraction. letters - E A D E F C A B Counter Clockwise

    asked on March 5, 2017
  42. Trigonometry

    A building 200 feet tall casts an 80 ft long shadow. If a person looks down from the top of the building which of the following is the measure of the angle between the end of the shadow and the vertical side of the building to the nearest degree? I

    asked on February 23, 2017
  43. Physics

    You want to jump from an 8.2 m high building to a 10 m high building. The gap between the buildings is 2.4 m, and you can run fast enough so that your speed as you leave the edge of the lower building is 7.0 m/s. What range of launch angles will allow you

    asked on January 28, 2017

    What intermolecular forces are responsible for neoprene's stretchiness?

    asked on January 22, 2017
  45. geometry

    Why must the compass opening be greater than 1/2 of the segment when construction a perpedicular bisector

    asked on December 27, 2016
  46. Accounting

    Herring Wholesale Company has a defined benefit pension plan. On January 1, 2016, the following pension related data were available: ($ in 000s) Net gain–AOCI $ 350 Accumulated benefit obligation 3,170 Projected benefit obligation 3,200 Fair value of

    asked on November 30, 2016
  47. Calculus

    For what values of the constants a and b is (1,3) a point of inflection of the curve y=ax^3+bx^2?

    asked on November 29, 2016
  48. Maths

    I have a patio which is 3m wide. The roof of this consists of sheets of plastic which are 900mm wide. I have used as few sheets as possible and made all overlaps the same width. What is the width, in millimetres, of this overlap? A. 100 B. 150 C. 200 D.

    asked on November 25, 2016
  49. Maths

    If it is 9am now, what time will it be in 2003 hours from now? Mental way please.

    asked on November 25, 2016
  50. Econ math/logarithms

    If log with base b (2)=0.39 and log with base b (3)=0.61 evaluate the following. log with base b (8). Simplify your answer. How to start? I thought I am supposed to write log base b 2^3 but I don't seem to get an answer that would fit.

    asked on November 21, 2016
  51. Maths

    Within a square land, Asmo cut out a rectangular land with width of 10 meters (as shown below), the remaining land’s area is 1575 square meters. The area of cut out rectangular land is ______ square meters.

    asked on November 21, 2016
  52. Calculus

    A 5ft tall person is walking toward a light 20ft off the ground at 8 ft/sec. What is the rate of change of the length of the persons shadow when they are 15ft away from the light? What is the speed of the tip of the shadow moving?

    asked on November 2, 2016
  53. math

    An age that is at least 25 years old.. Translate to inequality

    asked on October 24, 2016
  54. data management gr.12

    The Infinity Club consists of 5 boys and 6 girls. How many working groups of 5 people can be formed with: a)no restrictions (my answer is 11C5) b)all boys (is this correct 5C5) c)all girls (answer 6C5) d)more girls than boys (6C4x5C1 +6C3x5C2) e)more boys

    asked on October 13, 2016
  55. data management

    How many ways the letters in BIOENGINEERING be arranged if B must not be next to the O. Thanks in advance (is this correct 14!-(13!x2!)

    asked on October 13, 2016
  56. data management

    There are 5 rock songs, 6 country songs, and 3 hip-hop songs. How many different albums can be formed using the songs if the album should contain at least 1 rock song and 1 country song?

    asked on October 13, 2016
  57. Physics

    A ball is raised to a height of 30.0m above the ground. What would its velocity be when it has fallen to a height of 15.0m above the ground. (You must solve this as a conservation of energy problem, and can do it in one step!) Any help would be

    asked on October 1, 2016
  58. Math/Algebra

    The equation is Z^2-8+12/Z^2+Z-6 I got this far (Z-6)(Z-2)/(Z+2)(Z-3) It needs to be simplified further, as far as my understanding (Z-2) and (Z+2) cannot be cancelled out.

    asked on September 14, 2016
  59. Chemistry

    When 1.5 grams of salt are added to 12.0 grams of water and the salt dissolves, what is the mass of the system?

    asked on September 11, 2016
  60. Calculus 1

    sand is being poured onto the ground forming a conical pile whose height equals 1/4 of the diameter of the base. The sand is falling at a rate of 20cm^3/sec. How fast is the height of the sand pile increasing when it is 3cm high?

    asked on September 10, 2016
  61. science

    For the reaction 2N2O(g) ⇌ O2(g) + 2N2(g), what happens to the equilibrium position if the volume decreases? A. does nothing B. shifts to the left C. doubles D. shifts to the right

    asked on September 4, 2016
  62. Optics (pls help)

    To save expenses, you would like to buy the shortest mirror that will allow you see your entire body, should the mirror be A) Half your height B) Two-thirds your height or C)equal to your height ? Does the answer depends on how far away from the mirror you

    asked on August 15, 2016
  63. Algebra

    C the power of two+18c-175=0 Help please?

    asked on July 20, 2016
  64. Physics

    The A above middle C has a frequency of 440 Hz. If you play this note on a piano and the piano string oscillates with an amplitude of 0.55 mm, what is the maximum acceleration of the string?

    asked on June 9, 2016
  65. Chemistry

    Spontaneous reactions ________. always release free energy*** always result in increase disorder of the system always take place at a rapid rate are always exothermic

    asked on May 16, 2016
  66. Chemistry

    Which of the following changes would shift the reaction shown here to the right (product side)? 4HCl (g) + O2(g) < = > 2Cl2 (g) + 2 H2O (g) addition of Cl2*** decrease of pressure increase of pressure removal of O2

    asked on May 16, 2016
  67. Chemistry

    Which of the following changes would shift the reaction shown here to the right (product side)? 4HCl (g) + O2(g) < = > 2Cl2 (g) + 2 H2O (g) addition of Cl2*** decrease of pressure increase of pressure removal of O2

    asked on May 16, 2016
  68. Chemistry

    At what stage of a reaction do atoms have the highest energy Product stage Reactant stage Transition state stage*** The stage of the highest energy depends on the atom

    asked on May 16, 2016
  69. Chemistry

    When 2.0 g of solid NaOH (∆Hsoln = -445.1kJ/mol) dissolves in 10L of water, how much heat is released? 445.1 kJ 44.51 kJ 22.26 kJ 11.13 kJ***

    asked on May 16, 2016
  70. Chemistry

    Calculate the energy required to produce 5.00 mol of Cl2O7 on the bases of the following balanced equation. 2Cl2(g) +7O2(g) +130kcal - - > 2 Cl2O7 5.00 kcal 65 kcal*** 130 kcal 325 kcal

    asked on May 16, 2016
  71. Chemistry

    What does the symbol ∆H stand for? one Calorie given off by a reaction the heat capacity of a substance*** the heat of a reaction for a chemical reaction the specific heat of a substance

    asked on May 16, 2016
  72. Chemistry

    Which of the following is the correct unit for specific heat? degree C*** Cal cal/g cal/(g*deg C)

    asked on May 16, 2016
  73. Chemistry

    The heat capacity of an object depends in part on its enthalpy mass potential energy*** shape

    asked on May 16, 2016
  74. Chemistry

    When your body breaks down sugar completely, how much heat is released compared to burning the same amount of sugar in a flame? The body releases___ less heat than the flame*** more heat than the flame same amount of heat as a flame the body releases so

    asked on May 16, 2016
  75. Chemistry

    What would likely happen if you were to touch a metallic beaker in which an endothermic reaction were occurring? The beaker would probably feel cooler than before the reaction started. The beaker would probably feel warmer than before the reaction

    asked on May 16, 2016
  76. Geometry

    Segment AD is perpendicular to the radius of circle (B) and the radius of circle (c). If radius BA=6in, segment AD=21in and radius CD=16in, find the length of BC to the nearest tenth of an inch.

    asked on May 10, 2016
  77. math

    The area of a plot of land is 2496 square meters. A small part of the land is fenced. The ratio of the area of the plot of land to the area that is not fenced is 48:31. What is the area of the land that is not fenced? (5th grade math)

    asked on May 4, 2016
  78. Chemistry

    A sample of sulfur hexafluoride gas (SF6) occupies a volume of 3.230 Liters at 7.011 x 101 oC. Assuming the pressure is constant, what will the final temperature be (in o C) if the volume is increased to 7.350 Liters?

    asked on April 27, 2016
  79. Physics

    A plane travels 1000 km at an angle of 40 degrees East to North, then changes direction and travels 500 km at an angle of 20 degrees North to East. What is the magnitude and direction of the planes total displacement?

    asked on April 27, 2016
  80. Chemistry

    How many grams of MgCl2 would be required to make 440 g of magnesium ?

    asked on April 26, 2016
  81. Physics

    The human heart discharges 75ml of blood at each beat against the pressure of 0.1mmHg. Calculate the power of the heart assuming that the purse frequency is 80 beats per minute.(density of mercury is 13.6*10^3 Kg/m3)

    asked on April 20, 2016
  82. PHYSICS!!

    After giving an intense performance, a confused and disoriented flautist has wandered onto the motorway! They are playing a constant 300Hz on their flute and are essentially stationary If you are driving along the motorway at 100 km/h(27.8 m/s). What is

    asked on April 14, 2016
  83. AP Physics

    Two identical, small balls are suspended by separate 0.25m threads that are attached to a common point on the ceiling. Each ball has a mass of 8.0 x 10^-4 kg. Initially the balls are uncharged and hang straight down. They are then given identical positive

    asked on April 13, 2016
  84. PHYSICS!!

    In its search for flying insects, a bat uses an echolocating system based on pulses of high frequency sound. These pulses are 2.0 ms in duration, have a frequency of 50 kHz, and an intensity level of 100 dB at 1.0 m from the bat’s mouth. Assume the bat

    asked on April 13, 2016

    (a) Suppose 10 astronauts are sent to Mars and then back to Earth. The average power usage of each astronaut is 10,000,000 joules per day. What is the average power usage of each astronaut in watts and horsepower? (b) It will take approximately 2 years for

    asked on April 11, 2016
  86. Math

    Three Bases and home plate make a diamond that is 90 feet on each side. What is the perimeter of the diamond?

    asked on April 6, 2016
  87. Chemistry

    Calculate how many grams of MgO that can be produced from 4.58 of Mg metal and 0.99 of O2 gas. Recall the balanced reaction is: 2 Mg (s) + O2 (g) 2 MgO (s) And the answers to part one were: Moles of MgO from 4.58 g Mg = 0.1884 Moles of MgO from 0.99 g O2 =

    asked on March 28, 2016
  88. Chemistry

    If 12.01 g of Mg metal and 6.56 g of O2 gas are reacted, 1) How many moles of MgO can be produced from the given mass of Mg? 2) How many moles of MgO can be produced from the given mass of O2? 3) From the above calculations, determine which of the

    asked on March 28, 2016
  89. Chemistry

    If 12.01 g of Mg metal and 6.56 g of O2 gas are reacted, 1) How many moles of MgO can be produced from the given mass of Mg? 2) How many moles of MgO can be produced from the given mass of O2? 3) From the above calculations, determine which of the

    asked on March 28, 2016
  90. Chemistry

    Given that you are starting with 20.816 grams of Fe and 7.079 grams of O2, what is the THEORETICAL YIELD of Fe2O3 in moles?

    asked on March 28, 2016
  91. Math

    A certian recipe asks for 5/8 cup of granola. How much is needed to make 1/9 of a recipe?

    asked on March 27, 2016
  92. Algebra

    A campground consists of 8 square campsites arranged in a line along a beach. The distance from the edge of a campsite to the water at the end of the beach is 5 yards. The area of the campground, including the beach, is 1102 square yards. What is the width

    asked on March 24, 2016
  93. Physics

    A missile is fired with a launch velocity of 15000 ft/s at a target 1200 miles away. At what angle must it be fired to hit the target? Use g = 32 ft/s.s

    asked on March 11, 2016
  94. Math

    The pool is partially filled with water. The volume of the water in the pool is 45 cubic feet. How deep is the water? A.0.5 ft B.1.5 ft C.2.5 ft** D.3.5 ft Am I right?

    asked on March 7, 2016
  95. Chemistry

    A flask of hydrogen gas is collected at 1.023 atm and 35 degrees C by displacement of water at 35 degrees C is 42.2 mm Hg. What is the partial pressure of hydrogen gas in the flask? Not exactly sure where to start with this question, or what formula to

    asked on March 6, 2016
  96. Differential equation (urgent pls!!!)

    Reduce the differential equation below to an exact equation (X - 2siny + 3)dx -(4siny - 2x + 3)dy=0. The problem here is how to solve for the integrating factor...any help pls?

    asked on March 4, 2016
  97. maths(Differential Equation)

    Solve the differential equation below (Y + y^3/3 + x^2/2)dx + 1/4(1 + y^2)xdy=0

    asked on March 3, 2016
  98. Accelerated algebra

    Comet C has an elliptical orbit of eccentricity 0.9638 with the sun at one focus. The greatest distance of the comet from the sun is 2940 million miles. Find the least distance between the comet C and the sun.

    asked on March 1, 2016
  99. Physics

    Electrons in a narrow beam travelling at a steady speed of 5 x 10^7 ms^-1 are directed into the space between two oppositely charged parallel plates 50mm apart. The potential difference between the plates is 2500V. The initial direction of the beam is

    asked on February 17, 2016
  100. Physics - Electrons (Inside the atom)

    A beam of electrons is directed into uniform electric and magnetic feilds that are at right angles to one another and to the beam direction. The strength of the magnetic feild is 55 mT; the electric feild strength is adjusted to 600 kV m^-1 when the beam

    asked on February 17, 2016


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