Popular questions and responses by Someone
  1. Chemistry 1

    Calculate q when 22.0 g of water is heated from 25.0°C to 100.0°C.

    asked on November 2, 2016
  2. chem.

    Diet Coke has a pH of about 3.0. Milk has a pH of about 7.0. How much greater is the H+ ion concentration of Diet Coke when compared to milk? - Would it be 1x10^4 greater concentration

    asked on April 15, 2008
  3. algebra

    1. write an algebraic expression for the word phrase: the quotient of r and 12 a.r * 12 b.r/12**** c.r-12 2. write a word phrase for the algebraic expression: 2t - 9 a.nine fewer than two times a number t***** b.nine fewer than two times a number t c.nine

    asked on August 23, 2015
  4. Calculus

    if f(x)= |(x^2-9)(x^2+1)| how many numbers in the interval [-1,1] satisfy the mean value theorem? None 1 2 3 Will someone please explain in detail?

    asked on January 11, 2017
  5. Physics

    On Planet X, an astronaut has maximum walking speed of 1.9 m/s. The astronaut's legs are each 1.3 m long. What is the constant of acceleration due to gravity on Planet X?

    asked on January 8, 2016
  6. HELP MATH ONLY 1 QUESTION!!!!!!!!!!!!!!!!!!!!!!!!!

    you draw five card from a standard deck of 52 cards p(heart)=4/5. what type of probability is illustrated and why?? 1) Theroretical ; the result is based on then number of possible outcomes 2) Theroretical; the result is found by repeating an experiment

    asked on May 1, 2014
  7. algebra

    Which of the following expressions is true? a. 4^3 * 4^5 < 4^12 b. 5^2 * 5^3 > 5^5 c. 3^2 * 3^4 = 3^2***** d. 5^2 * 5^4= 5^8 Which of the following expressions is true? a. 2^4 * 2^4 >2^7***** b. 3^2 * 3^6= 3^7 c. 4^3 * 4^5< 4^8 d 5^2 * 5^3 = 5^6 Please

    asked on April 13, 2016
  8. Social Studies

    On which idea did Patriots and Loyalists most agree?

    asked on October 9, 2019
  9. math

    Vivian is going to do some yard work, but she needs to leave her house at 2:00 to go to a football game. She is going to mow the lawn for 1 hour and 15 minutes, trim some bushes for 40 minutes, and put down some mulch for 25 minutes. She will also need 30

    asked on February 17, 2017
  10. Calculus

    a 160-inch strip of metal 20 inches wide is to be made into a small open trough by bending up two sides on the long side , at right angles to the base. the sides will be the same height , x. if the tgrough is to have a maximum volume, how many inches

    asked on January 11, 2017
  11. ap chemistry

    Discuss briefly the relationship between the dipole moment of a molecule and the polar character of the bonds within it. WIth this as a basis, account for the difference between the dipole moments of CH2F2 and CF4. does anyone have any idea? the greater

    asked on December 7, 2006
  12. Chemistry

    The heat of combustion of liquid hexane (C6H14) to carbon dioxide and liquid water at 298 K is -4215 kJmol−1 . Find ΔrU of the reaction.

    asked on February 10, 2017

    Which of the following correctly describes how nerve impulses move throughout the body? A. Electrical transmission through neurons and elecrical transmission between neurons. B. Chemical transmission through neutrons and chemical transmission between

    asked on January 7, 2014
  14. Algebra 1

    The area of a rectangular pool is given by the trinomial 2y^2+5y-42 . What are the possible dimensions of the pool? Use factoring. a. 2y+7 and y-6*** b. 2y-2 and y+6 c. -2y-7 and -y-6 d. 2y-7 and y+6 tbh im guessing. i have no clue. can someone help

    asked on February 28, 2017
  15. math

    One wet weekend, 0.86 inches of rain fell on Saturday. The next day, 1.52 inches of rain fell. How many inches of rain fell over the weekend? i need help I've been stuck on this for 30 minutes

    asked on February 17, 2017
  16. Calculus

    The end behavior of f(x)=(2+x^2)/(x^2-36) most closely matches which of the following: y=1 y=-1 y=2 y=0 There is no leading coefficient so I am not sure what the answer is.

    asked on January 11, 2017
  17. Trig

    Prove that : (Sin Ө + Cosec Ө)/(Tan Ө+Cot Ө) = Sin Ө + Cos Ө

    asked on April 19, 2015
  18. English 12

    can someone check my answers please? 1. Which of Yeats's poem opens with the symbol of a gyre, a spiral spinning out of control? (1 point) "Sailing to Byzantium" "The Second Coming"(My Answer) "When You Are Old" "A Prayer For My Daughter" 2. Which of the

    asked on May 29, 2013
  19. Physical Ed

    11. Disagreements are a normal part of life. (1 point) True False 12. Talking to a trustworthy adult is the best way to stop sexual abuse and get help. (1 point) True False 13. Some conflicts are made worse by peer negotiation. (1 point) True False 14.

    asked on February 6, 2013
  20. physics

    A hunter aims directly at a target (on the same level) 120 m away.? (a) If the bullet leaves the gun at a speed of 250 m/s, by how much will it miss the target? (b) At what angle should the gun be aimed so as to hit the target?

    asked on August 1, 2009
  21. Physics

    a diver running 1.6m/s dives out horizontally from the edge of a vertical cliff and reaches the water below 3.0s later. how high was the cliff and how far from its base did the driver hit the water?

    asked on August 1, 2009
  22. Math

    a yogurt shop offers 5 different flavors of frozen yogurt and 11 different toppings. How many choices are possible for a single serving of frozen yogurt with one topping.

    asked on May 7, 2020
  23. chemistry

    What are the 4 main components of air in their molecular form?

    asked on February 22, 2019
  24. Physics

    how far must you swim upstream to get directly in front of a pizza stand .2 km away on the other side of a river if you can swim 4km/hr and the river moves downstream at 1.5km/hr

    asked on July 2, 2018
  25. Spanish

    In which country is baseball more popular than soccer? A. la Repúplica Dominicana B. Argentina C. Espana D. Perú I think the answer is B, am I correct? If not B then C.

    asked on December 12, 2017
  26. math

    Valerie tells Robbie, "I'm thinking of a number between 1 and 50. If I divide the number by 4, then add 5, then subtract 6, I get 6. i tried 12,24,36,48,42 its non of those

    asked on February 17, 2017
  27. math

    Algebra 1) 11x + 2y - 4x - y 2) 9x + 2y -5x what i did in no. 2 is subtract 9 and 5 then add 2... please correct mw if i am wrong

    asked on October 18, 2016
  28. physical

    the ability to exert muscle force quickly is known as 1) agility 2) power 3) recation time 4) speed I need help! Plz anyone!

    asked on December 18, 2013
  29. Physics

    a shot-putter throws the shot with an intial speed of 14 m/s at a 40 degree angle to the horizontal. Calculate the horizontal distance traveled by the shot if it leaves the athlete's hand at a height of 2.2m above the ground. t=2.06? x=22.08? am i right?

    asked on August 2, 2009
  30. Math

    the probability of winning a game is 25% . How many times should you expect to win if you play 40 times

    asked on May 7, 2020
  31. algebra

    Make a table to find the balance in an account starting with $135 at 5% compounded annually for 2 years. In your last calculation, round to the nearest cent. 1 $136.10 2 $148.84 3 $141.75 4 $148.50 i think its 3 please help

    asked on November 20, 2019
  32. MATH area trapezoid

    whats A=1/2 h(b1+b2) if h is 6, b1 is 8 and b2 is 12? area of trapezoid?

    asked on April 22, 2019
  33. Roman history

    Which fact most clearly shows the difficulty in defending the Roman empire against invasion? A. At its height, the empire likely had a population as high as 100 million. B. At its height, the empire comprised nearly 1.7 million square miles of land and

    asked on December 14, 2018
  34. civics

    There is a public debate between the three candidates for the U.S. Senate. During the debate, the topics of oil and energy are addressed. Each candidate expressed their view on the issue: Edgar Eisenhower: "We need to cut our dependence on foreign oil.

    asked on May 31, 2017
  35. Chemistry

    A metal, M, of atomic weight 96 u reacts with fluorine to form a salt that can be represented as MFx. In order to determine x and therefore the formula of the salt, a boiling point elevation experiment is performed. A 10.9 g sample of the salt is dissolved

    asked on March 4, 2017
  36. Calculus

    Find the x-coordinates where f '(x) = 0 for f(x) = 2x + sin(2x) in the interval [0, 2π]. MY ANSWERS: x = π/2 x = 3π/2

    asked on January 11, 2017
  37. Calculus

    A particle moves along the x-axis with position function s(t) = e^cos(x). How many times in the interval [0, 2π] is the velocity equal to 0? 1< My answer 2 3 More than 3 I don't really get this question will someone please explain it to me?

    asked on January 11, 2017
  38. Chem 2

    Using values from Appendix C in your textbook, calculate the value of ΔH° for the reaction 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g)

    asked on November 2, 2016
  39. physics

    The two small spheres each with mass m= 25g are hung by silk threads length L=.65m from a common point. When the spheres are given positive charge such that q1=2q2, each thread hangs stationary at theta=15 degrees from the vertical. Using Newton's first

    asked on June 9, 2016
  40. Social Studies

    Compare and contrast the economies of Chile and Venezuela. I really need some help on this can someone name the similarities and differences pleace?

    asked on May 26, 2016
  41. Math

    Find the surface area of the prism 5m 9m 12m 1.426m 2.306m

    asked on April 7, 2016
  42. Language arts

    I (advice,advise) you to plan your project before you start

    asked on May 13, 2014
  43. Math

    What are the intercepts for 1.9x-1.9y=3.8

    asked on March 3, 2014

    Which of the following correctly describes how nerve impulses move throughout the body? A. Electrical transmission through neurons and elecrical transmission between neurons. B. Chemical transmission through neutrons and chemical transmission between

    asked on January 7, 2014
  45. physical education

    why are all the pe teachers the ones that need to be the one in physical education so they could lose weight because they are the ones that are always fat and out of shape

    asked on April 18, 2013

    The molar mass of an unknown organic liquid (M~100) is determined by placing 5 mL of the liquid in a weighed 125-mL conical flask fitted with a piece of Al foil with a pin hole in it. The flask is heated in a boiling water bath until the liquid evaporates

    asked on April 1, 2013
  47. Science help.

    1. The ___ is the outer, thinnest layer of your skin, which houses sweat pores. (1 point) epidermis dermis fatty layer hair 2. One of the purposes of sweat glands is to release waste products, such as water and _____. (1 point) blood dirt sugar salt 3.

    asked on March 14, 2013
  48. math

    Find the volume of a cone with a radius of 10 mm and a height of 6 mm.? 628 mm3 600 mm3 1,884 mm3 1,254 mm3 is it c

    asked on March 6, 2013
  49. history social

    i need help to make a love poem

    asked on April 16, 2012
  50. Literature

    "They said that Jose was born with a ring of dirt around his neck, with grime under his fingernails, and skin calloused form the grainy twist of a shovel" What kind of literary device is this?

    asked on September 10, 2010
  51. social studies

    is francisco de Goya a renaissance artist??

    asked on October 20, 2008
  52. Math

    A coin is tossed and a number cube is rolled. What is the probability that the coin show heads and the number cube shows 5

    asked on May 7, 2020
  53. Math

    Sammy likes to mix match her 4 necklaces, 2 bracelets, and 3 hats. The colors are listed in the table. On Monday, she randomly picks a bracelet, a necklace, and a hat. What is the probability of Sammy choosing a red necklace and a yellow bracelet.

    asked on May 7, 2020
  54. Math

    The spinner is divided into equal parts. Use a tree diagram to find the probability that the spinner will land on a constant both times if the spinner is spun twice.

    asked on May 7, 2020
  55. Math

    Tony works in a factory that produces 1,000 computers each day. When 50 were sampled, it was found that 7 were defective. Estimate how many defective computers are made each day

    asked on May 7, 2020
  56. Math

    a survey showed that 36% of car owners prefer two-door cars, 52% prefer four-door cars, and 12% have no preference. You ask 300 people. How many do you think would prefer two-door cars?

    asked on May 7, 2020
  57. Math

    From a barrel of colored marbles, you randomly 5 blue, 2 yellow, 3 red, 4 green, and 2 purple marbles. Find the experimental probability of randomly selecting a marble that is not yellow

    asked on May 7, 2020
  58. Math

    A standard number cube with the numbers 1 through 6 is rolled. Find the probability of rolling a number greater than 5

    asked on May 7, 2020
  59. Math

    Which events are not indepentant

    asked on May 7, 2020
  60. Math

    The table shows the drink preferences of 50 shoppers at the mall. What is the probability that one shopper, selected at random for 50 surveyed, preferred either Drink B or Drink A

    asked on May 7, 2020
  61. Math

    A game involves spinning this spinner. What is the probability of the pointer landing on R

    asked on May 7, 2020
  62. Math

    A single, standard cube is tossed. What is the probability of getting a number greater than 3

    asked on May 7, 2020
  63. math

    12. Estimate the area of a circle with a radius of 16 meters. use 22/7 for π A. 62 Square meters B. 531 Square meters C. 805 Square meters D. 1,608 Square meters if someone could help me please that would be nice idk how to do the math- ;-;

    asked on May 6, 2020
  64. math

    Genna has 5/6 litre of soup. She pours the soup equally into 10 mugs. How much soup is in each mug?

    asked on April 13, 2020
  65. Math

    Use the graph below to answer the question that follows> Which statement describes the speed of the remote-control car over time? A-the speed of the car decreases from 4mi/h to 2mi/h in the first 3 seconds, increase to five mi/h in the next 2 seconds, and

    asked on February 20, 2020
  66. math

    A pyramid has a height of 5 in. and a surface area of 90 in Find the surface area of a similar pyramid with a height of 10 in. Round to the nearest tenth, if necessary.

    asked on February 17, 2020
  67. Social Studies

    1.Suppose that people in your community voted to eliminate all local taxes. Which of these goods and services would most likely disappear? A-Interstate highway B-Neighborhood trash pick-up C-Regional military base D-Grocery store parking lots

    asked on January 29, 2020
  68. algebra

    Suppose that on January 1, 1899, one of your ancestors invested $41 compounded annually at 4.5%. If this money were left to you, how much would you have had on January 1, 2002? 1) $192 2) $3,817 3) $190 4) $3,989*** Please help me i believe it is 4 but i

    asked on November 18, 2019
  69. algebra

    A coin is tossed. If a head appears, a spinner that can land on any of the numbers from 1 to 4 is spun. If a tail appears, the coin is tossed a second time instead of spinning the spinner. What are the possible outcomes? 1) (T, H), (H, H), (H, 1), (H, 2),

    asked on November 18, 2019
  70. Social studies

    contrast the upcountry and the lowcountry identify three differences between the two regions plz help

    asked on October 4, 2019
  71. Math

    Hey! I need help with this question. Apply the properties of integer exponents to identify all of the expressions equivalent to 18. a) 2-3 b) 23 c) 123 d) 22x 2-5 e) 2-2x 25

    asked on September 25, 2019
  72. earth and space science

    using an atlas, find the latitude and longitude of San Francisco, California; Wichita, Kansas; and Richmond, Virginia.what do these three cities have in common

    asked on September 10, 2019
  73. History

    What is the role of the government in the mixed economy

    asked on September 4, 2019
  74. math

    Solve 3(x+8)=−3(7−1/4x) What is x equal to?

    asked on May 14, 2019
  75. Geography

    What year did Mongolia stop receiving economic aid from the Communist Government of the Soviet Union? * a. 1911 b. 1924 c. 2014 d. 1991 I think its b but I'm not sure.

    asked on May 9, 2019
  76. chemistry

    What is the atomic number of potassium? 2 19 20 39 I know it's not 2 but other than that I'm not sure.

    asked on April 5, 2019
  77. chemistry

    When using science to investigate physical phenomena, which of the following is NOT a characteristic of the event must exist? measurable falsifiable observable readable

    asked on April 5, 2019
  78. geography

    Where in Europe are the Romance languages mainly spoken? Central Europe Northwestern Europe Southern Europe Western Europe

    asked on April 5, 2019
  79. geography

    Which islands are part of the Greater Antilles? Aruba Cuba Hispaniola Jamaica Martinique Montserrat Puerto Rico

    asked on February 12, 2019
  80. science

    Which of the following statements about the Moon is true?

    asked on January 2, 2019
  81. math

    Jill ran 6 1/4 miles at practice today. Amanda ran 3 7/8 miles at practice today. How many more miles did Jill run

    asked on December 20, 2018
  82. English

    (1) Sale looked at the map one more time. (2) She knew that the whole troop was depending on her. (3) Sal couldn't decide if the trial was to the east or to the west. (4) The map was confusing. (5) Sal was tired. (6) She needed to make a decision. 1. Which

    asked on October 17, 2018
  83. Math

    If a gardener has 337481trees and you devied it by 378what I our answer

    asked on October 11, 2018
  84. Math

    Least three different numbers that up to get one

    asked on October 10, 2018
  85. Math

    solution to (4 x 10^3) x (6 x 10^6) written in scientific notation 24 x 10^9 2.4 x 10^9 THIS ONE 24 x 10^18 2.4 x 10 ^10

    asked on October 6, 2018
  86. Home economics

    List and explain five branches of home economics which are inter related

    asked on September 18, 2018
  87. science

    Using what you know about rock and fossil samples, why do you think that is it possible to have the same type of sample but get different results? How does this apply to rocks? can someone tell me in a simpler way what this is please

    asked on September 5, 2018
  88. math, algebra

    1. what is the LCD for 3/5 and 1/6 2. what is the difference between 3/7 and 1/14 and so on plz help me

    asked on August 27, 2018
  89. Reading

    What was the approximate timespan of Acts? (Bible)

    asked on April 30, 2018
  90. Algebra

    BIll uses x for the cost of a computer game. He buys seven games. Write this as an algebraic expression

    asked on April 23, 2018
  91. Social studies

    When did the Romans take over Italy? A: By 500 BC B: By 267 BC C: 125 BC D: By 100 AD

    asked on March 20, 2018
  92. Math

    James and Becky have a total of 4 2 over 8 feet of yarn. Becky has 1 5 over 8 feet of yarn. How many feet of yarn does James have?

    asked on February 16, 2018
  93. Social Studies

    what important feature do Confucianism and filial piety share

    asked on February 14, 2018
  94. math

    identify the decimal and simplify fraction from of %80

    asked on February 9, 2018
  95. math


    asked on February 1, 2018
  96. ss

    even today many Indian women have

    asked on January 30, 2018
  97. Does Connections or any other school know about

    Does connections or any other school know about this website???

    asked on January 3, 2018
  98. Spanish

    I need help! The question is Which word best completes the following sentence? The standard variety of Spanish is considered A. Natural B. Colorful C. Easy D.neutral I think that it’s a, is that right?

    asked on December 7, 2017
  99. Math

    Given a scale factor of 2, find the coordinates for the dilation of the line segment with endpoints (-1,2) and (3,-3)

    asked on November 16, 2017
  100. Social studies

    what effect did john hay's open door policy letters have on the imperial powers of britain france germany russia and japan? A:it provoked the imperial powers to declare war on the United States B:it caused the imperial powers to restrict trade in their

    asked on April 26, 2017


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