Most popular questions and responses by courtney
  1. English

    What grammatical structure is the italicized portion of the sentence? 1. (Headed by a senior), the group drew up rules for School Spirit Week. - nominative absolute 2. My most valuable coin, (one from Spain), is worth more than $100.00. - prepositional

    asked on November 4, 2012
  2. Language art

    Consider the main characters from " The Stolen Day and the night the bed fell in a paragraph discuss which character learns the most and which one learns the least. PLZ ANSWER ASAP and yes I have read both stories

    asked on October 6, 2016
  3. Chemistry

    Many metals react with oxygen gas to form the metal oxide. For example calcium reacts: 2Ca(s) + O2(g)--> 2CaO(s) Calculate the mass of calcium prepared from 4,20g of Ca and 2.80g of O2. (a) How many moles of CaO can form from the given mass of Ca? (b) How

    asked on September 28, 2009
  4. physics

    a 95-kg person stands on a scale in an elevator. What is the apparent weight when the elevator is: (A) accelerating upward with an acceleration of 1.8 m/s^2 (answer 1.1 * 10^3 N) (B) moving upward at a constant speed (answer 931 N) (C) accelerating

    asked on January 31, 2014
  5. math 5th

    Estimate the area of the circle and use 22/7 for pie. Teh circle shows line all the way accross measruing 28cm. Find area. Can some one explain how

    asked on April 24, 2013
  6. Speech

    Group communication should be evaluated according to which of the following characteristics? a. Do the group members attain their individual goals? b. Do all members participate in the decision-making process? c. Does the group leader encourage

    asked on April 20, 2011

    In what areas of North Africa do the majority of the people live and why? I know that they live by the Nile river but why is what don't know plz help I have been doing everything only come here if it's important plz help thank you

    asked on October 6, 2016
  8. physics

    a 15-g bullet is fired from a rifle. it takes 2.50 * 10^-3s for the bullet to travel the length of the barrel, and it exits the barrel with a speed of 715 m/s. assuming that the acceleration of the bullet is constant, find the average net force exerted on

    asked on January 31, 2014
  9. Science

    Explain how sexual reproduction increases genetic diversity in many species of plants and animals, make sure to include the importance and function of gametes. PLEASE HELP!!

    asked on October 19, 2017
  10. Chemistry

    A solution contains an unknown amount of dissolved magnesium. Addition of 3.38×10−2mol of Na2CO3 causes complete precipitation of all of the magnesium. What mass of magnesium was dissolved in this solution?

    asked on October 3, 2013

    How did European affect Africa during the 18 hundreds how did Africa Africans respond in the 1900 Plzzzzzz help I swear I have read my text read a link about but I still don't understand plz help!!!!!#

    asked on October 6, 2016
  12. physics

    a boat has a mass of 6800 kg. its engine generate a drive force of 4100 N, due west, while the wind exerts a force of 8000 N, due east, and the water exerts a resistive force of 1200 N due east. what is the magnitude and direction of the boats

    asked on January 31, 2014
  13. calculus

    Find the number b such that the line y = b divides the region bounded by the curves y = 16x2 and y = 9 into two regions with equal area. (Round your answer to two decimal places.)

    asked on November 9, 2011
  14. math

    the ratio of hydrogen atom to oxygen atoms in water is 2:1 if an amount of water contains 341 trillion atoms of oxygen how many hydrogen atoms are there? how would i do this?

    asked on October 21, 2010
  15. College Algebra

    A truck driver traveled at an average speed of 55 miles per hour on a 200 mile trip to pick up a load of freight. On the return trip(with the truck fully loaded), the average speed was 40miles per hour. What was the average speed for the round trip?

    asked on November 19, 2007
  16. geometry

    SM=3x−4, and RN=9x−20. Find the value of x. A. 16 B. 4 C. 12 D. 8

    asked on July 26, 2016
  17. Physics

    Suppose at one point along the Nile River a ferryboat must travel straight across a 1.29-mile stretch from west to east. At this location, the river flows from south to north with a speed of 2.58 m/s. The ferryboat has a motor that can move the boat

    asked on February 4, 2016
  18. Chemistry

    1.62 g of CoCl2 x (xH20) were heated. After heating only .88g of CoCl2 remained. What was the formula of the original hydrate?

    asked on April 5, 2011
  19. Math

    what angle in radians corresponds to 3 rotations around the unit circle

    asked on February 18, 2014
  20. Speech

    After analyzing a problem, what is the next step in the problem-solving process? a. Develop creative solutions. b. Identify possible solutions. c. Select a solution. d. Implement a solution. I think it might be B

    asked on April 26, 2011
  21. English

    Read the lines from Shelley's "Ode to the West Wind." O thou Who chariotest to their dark wintry bed The winged seeds, where they lie cold and low, Each like a corpse within its grave, Which best explains the metaphor in these lines? 1.The wind is compared

    asked on June 3, 2010
  22. World Geography

    Which statements describe the geographic theme of regions? a. Different types of regions have little or no effect upon each other. b. Climate regions are defined by their average temperature and their political system. c. Physical regions can be formed by

    asked on September 16, 2010
  23. College Chemistry

    the acid dissociation constant for acetic acid is 1.85x10^-5. Calculate the pH at the equivalent point and the pH at one-half the equivalence point for the titration of 25.00 mL of 0.100 M acetic acid with 0.100 M NaOH?

    asked on October 18, 2015
  24. Physics

    An aircraft has a liftoff speed of 33 m/s. What minimum constant acceleration does this require if the aircraft is to be airborne after a takeoff run of 240m?

    asked on September 10, 2019
  25. english

    Read the lines from Wordsworth's "Tintern Abbey." The sounding cataract Haunted me like a passion: the tall rock, The mountain, and the deep and gloomy wood, Their colours and their forms, were then to me An appetite: a feeling and a love, That had no need

    asked on June 3, 2010
  26. Science

    How can volcanic eruptions change the surface of the earth? by creating large deposits of coal by creating new islands and land by lowering land levels several feet by decreasing the level of the ocean I think its C

    asked on December 26, 2015
  27. earth

    3. Show how the length of day changes with latitude by plotting the following points. Use the table below as a graph and place an X in the box where you want to plot a data point. For example, if you find that a day is 10 hours long at 30° N latitude,

    asked on March 26, 2012
  28. Math ASAP ASAP!!!!!

    Earl earns a weekly salary of $150 plus 20% of amount of his sales for the week. Last week he earned $230. The equation below can be used to find "s" the amount of his sales in dollars last week 230=150+0.2s What was the amount of Earl's sales last week?

    asked on January 15, 2016
  29. language

    A poem's underlying message or concept _____. 1 poetic diction 2 tone 3 atmosphere 4 all of these 5 none of these I think its the tone? Is this right?

    asked on June 2, 2010
  30. Economics

    Suppose you are a producer of friendship bracelets. How would the following events affect your/the market's willingness and ability supply friendships bracelets? Match the event on the left to the proper determinant on the right. 1. The price of friendship

    asked on July 21, 2016
  31. Geography

    1. The statement, "Paraguay is one of two landlocked South American nations" describes what type of region? a.cultural b.economic c.physical d.political 2. The statement, "Farmers in this area benefit from a long growing season" describes what type of

    asked on September 9, 2010
  32. English

    It is impossible to have an indirect object without a subject, transitive verb, and a(n) _____. noun preposition direct object intransitive verb

    asked on November 4, 2012
  33. Chemm

    A 2.00L flask is filled with propane gas(C3H8)at 1.00atm and 15C. What is the mass of propane in the flask?

    asked on April 6, 2010
  34. Math/Physics

    Lil decides to estimate the height of the Empire State Building. She measures the angle θ of elevation of the spire atop the building as 19°. After walking x = 9.10 ✕ 102 ft closer to the building, she finds the angle to be 23.8°. Use Lil's data to

    asked on January 13, 2016
  35. Pre-Cal

    A Ferris wheel is 40 meters in diameter and boarded from a platform that is 5 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes one full revolution every 7 minutes. You make two

    asked on February 14, 2014

    Henry's current age is 10 times Justin's current age. in 6 years,Henry's age will be 4 times Justin's age. Which system of equations can be used to calculate H Henry's current age J Justin's current age? A. J=10h j+6=4(H+6) B.J=H+6 J+4=H+10 C.H=10J

    asked on January 15, 2016
  37. chemistry

    Find the solubility of AgBr in 3.9 M NH3 [Ksp of AgBr = 5.0 10-13 and Kf of Ag(NH3)2+ = 1.7 107]

    asked on November 4, 2011
  38. Chemisrty

    Chlorine gas can be produced in the laboratory by adding concentrated hydrochloric acid to manganese(IV) oxide in the following reaction.. MnO2(s)+ 4HCl(aq)-->MnCl2(aq)+ 2H2O(l)+ Cl2(g) A. Calculate the mass of MnO2 needed to produce 25.0g of Cl2 B. What

    asked on April 12, 2010
  39. English

    Dialogue is often less formal than the surrounding description and narrative. True? False?

    asked on June 2, 2010
  40. Math 7th grade

    Write a mixed number for each time period. Be sure each fraction is in lowest terms. 8:00am to 9:20 am Not sure how to set up

    asked on September 4, 2013
  41. physics

    A train travels at a constant speed around a curve of radius 225 m. A ceiling lamp at the end of a light cord swings out to an angle of 20.0º throughout the turn. Draw a free body diagram? What is the speed of the train?

    asked on November 20, 2012
  42. history

    What is the correct definition of indigenous? native to a certain area or region applying to people of low social standing following a migratory pattern originating from India

    asked on November 6, 2018
  43. Chemistry

    If the density of carbon is 3.51 g/cm3, and you have a small diamond (pure carbon) that has a mass of 0.0270 grams, what is the volume?

    asked on September 4, 2016
  44. Organic Chemistry

    Hello I have to determine the theoritical yield of sulfanilamide after crystalization of impure sulfanilamide with 95% ethyl alcohol (the impure sulfanilamide contains 5% Fluorenone) I understand how to calculate the theoretical yield, my problem is

    asked on September 11, 2012
  45. geometry

    the measure of one interior angle of a parallelogram is 50 degrees more than 4 times the measure of another angle. find the measure of each angle.

    asked on February 9, 2017
  46. Physics

    The angular speed of a propeller on a boat increases with constant acceleration from 11 rad/s to 26 rad/s in 2.4 seconds. Through what angle did the propeller turn during this time?

    asked on November 16, 2010
  47. Statistics

    I need help figuring out these two problems. I think I have the right idea about solving them but I'm not exactly sure. 8. Two companies market new batteries targeted at owners of personal music players. DuraTunes claimes a mean battery life of 11 hours,

    asked on November 10, 2007
  48. Math

    A box contains some white balls and some blue balls. There are 5 more blue balls than white balls. One ball is removed at random and not replaced. A second ball is then removed at random. The probability that the balls are different colours is 52/105. Find

    asked on November 10, 2016
  49. Trig

    A pendulum swings through an angle of 22 degrees each second. If the pendulum is 30 inches long, how far does its tip move each second?

    asked on February 20, 2013
  50. Pre-Calculus

    A rectangular garden with an area of 250 square meters is to be located next to a building and fenced on three sides, with the building acting as a fence on the fourth side. Let x be the length of the side parallel to the building. 1. Find T(x), the total

    asked on January 18, 2008
  51. World Geography

    Which of these statments describe NATO? 1. NATO's preferred method for resolving conflict is through military defense. 2. NATO's original purpose was to defend its members from Soviet aggression. 3. NATO's members include the U.S. and Canada. 4. NATO was

    asked on March 25, 2011
  52. Physics

    In a huge oil tanker, salt water has flooded an oil tank to a depth of h2 = 4.50 m. On top of the water is a layer of oil h1 = 7.55 m deep, as in the cross-sectional view of the tank as shown in the figure. The oil has a density of 0.700 g/cm3. Find the

    asked on October 28, 2014
  53. Chem B

    The air in a dry, sealed 2L soda bottle has a pressure of 0.998 atm at sea level at a temperature of 34C. what will be it's pressure, if it is brought to higher altitude where the temperature is only 23C?

    asked on April 5, 2010
  54. Math

    The volume of a gas in cubic centimeters, V, varies inversely with the pressure of the gas in liters per square centimeter, p. When the volume of the gas is 16 cm3, its pressure is 20 L/cm2. Find the volume of the gas when the pressure is 1.6 L/cm2.

    asked on September 2, 2019
  55. Calculus

    A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3

    asked on December 5, 2011
  56. Calculus

    A tank is full of water. Find the work W required to pump the water out of the spout. r=6 h=3

    asked on December 5, 2011
  57. history help

    12. __________ and _________ first attracted settlers to the West.

    asked on November 18, 2014
  58. 12th grade economics

    Frank wants to buy a $10,000 car. The car dealer offers him financing of 60 payments at 9% interest. What will his payments be assuming he pays $0 down?

    asked on March 14, 2010
  59. novel

    After the death of Curly in The Call of the Wild, Buck concludes that no fair play exists in his world and that he will never go down in a fight. The theme illustrated here is apparently derived from London's interpretation of

    asked on November 18, 2008
  60. Physics

    Calculate the pressure on the top lid of a chest buried under 4.30 meters of mud with density 1.75 103 kg/m3 at the bottom of a 12.5-m-deep lake

    asked on October 28, 2014
  61. language

    Which of these terms is interchangeable with atmosphere? 1.setting 2.tone 3.mood 4.all of these 5.none of these

    asked on June 2, 2010
  62. Forensic Science

    If there are 45 drops of alcohol/mL, and the density of alcohol is 0.789 g/mL, what is the blood alcohol concentration of your unknown sample?

    asked on April 7, 2017
  63. English

    The MLA format for citing an entire website includes A. an article title. B. source from which you found the website. C. electronic publication information. D. author's apparent credibility.

    asked on March 1, 2016
  64. English

    Which type of Internet resource would be the most reliable in providing accurate information? A. A general reference site such as Encyclopedia B. An email you received from your instructor C. An email listserv D. An online newsgroup dedicated to your topic

    asked on March 1, 2016
  65. english

    In Anglo-Saxon society, the _____ was responsible for carrying on the history, culture, beliefs, and legends of the English people. 1 kenning 2 scop 3 comitatus 4 witan

    asked on June 3, 2010

    a child is pulled on a sled across a snow-covered yard. the combined mass of the child and the sled is 35 kg. the angle that the rope pulling the sled makes with the horizontal is 34 degrees. the person pulling on the rope applies a force of 182 N. given

    asked on January 15, 2008
  67. AP Statistics

    How would I go about solving these problems? In Exercise 9 we suggested the model N(1152,84) for weights in pounds of yearling Angus steers. What weight would you consider to be unusually low for such an animal? Explain. If you are given the model

    asked on November 16, 2007

    Calculate the pressure on the top lid of a chest buried under 4.30 meters of mud with density 1.75X 10^3 kg/m^3 at the bottom of a 12.5 m deep lake

    asked on October 29, 2014
  69. Physics

    A 55-kg soccer player jumps vertically upwards and heads the 0.45-kg ball as it is descending vertically with a speed of 29 m/s. If the ball is in contact with the player's head for 16 ms, what is the average acceleration of the ball? (Note that the force

    asked on October 3, 2014
  70. precal

    A kite flier wondered how high her kite was flying. She used a protractor to measure an angle of 36 degrees from level ground to the kite string. If she used a full 140-yard spool of string, how high, in feet, was the kite? (Disregard the string sag and

    asked on February 14, 2014
  71. physics

    the coefficient of starting friction for wood on wood is 0.55. What is the force of friction of a wood block of mass 3.5 kg being pulled on a wood floor? i think i use the formula F=mMA where F is the force needed to move a solid from rest, m=coefficient

    asked on October 17, 2010
  72. english

    Which of the following sentences is written in active voice? a. The decision was made to revise the original proposal. b. A market analysis was conducted to determine the project’s need. c. The project was developed after months of planning. d. The

    asked on July 13, 2019
  73. Reading

    9. As you're revising an essay, you write down several sentences to describe your intended readers. Why should you do this? To make sure you're writing what you know, not what you believe B. To ensure that you're instructing your audience adequately C. To

    asked on December 11, 2016
  74. Math

    A box contains some red balls and some blue balls. There are four more blue balls than red balls. A ball is removed at random, replaced and a second ball randomly removed. The probability that the two balls are different colours is 21/50. How many balls of

    asked on November 10, 2016
  75. Chem B

    What mass of acetylene, C2H2, will be produced for the reaction of 90.g of calcium carbide, CaC2, with water in the following reacion? CaC2(s) + 2H20(l) ---> C2H2(g) + Ca(OH)2(s)

    asked on April 12, 2010
  76. Reading

    Describe Johnny’s relationships with Cilla, Lavinia Lyte, and Dove now that Johnny is living with Rab and his family. What do these relationships reveal about Johnny and his personal growth?

    asked on December 21, 2015
  77. Trugonometry

    Simplify the expression √x2 +1 as much as possible after substituting tan(θ) for x.

    asked on January 31, 2012

    Mr. Smith wants to save for his son’s college education. If he deposits $300 each month at 12% compounded monthly, how much (to the nearest penny) will he have in the account after 8 years? Answer = $ HOW DO I SOLVE THIS ??

    asked on September 29, 2010
  79. English

    When writing for emphasis one should ____________. a. use passive voice b. use active voice c. use multiple adverbs d. omit the actor from the sentence

    asked on July 13, 2019
  80. Physics

    A 2.87 kg object initially moving in the positive x-direction with a velocity of +4.87 m/s collides with and sticks to a 1.96 kg object initially moving in the negative y-direction with a velocity of -2.55 m/s. Find the final components of velocity of the

    asked on October 2, 2014
  81. Physics

    A bat flying in a cave emits a sound and receives its echo 1 s later. How far away is the cave wall? is it 340.29 m? the speed of sound is 340.29 m/s i believe v = d/t d = (t)(v) d = (340.29)(1) Nope but thanks for trying :)

    asked on March 1, 2007
  82. Physics

    Kim is tuning a piano. She strikes a 440 Hz tuning fork and a string at the same time and hears 4 beats per second. a) What are the possibe frequencies of the string? b)She tightens the string a little then repeats. She now hears 1 beat per second. What is

    asked on February 17, 2011
  83. Geography

    A prime minister is the leader of what type of region? climate cultural economic political I thought it was a nation but its not a answer choice.

    asked on September 9, 2010
  84. math

    the battery lifetime is normally distributed for large samples with a standard deviation of 70 days. if 16% of the batteries have a lifetime of 850 or higher, what is the average battery life?

    asked on January 16, 2017
  85. Physical Science

    Inferring:A student examines a thermometer placed in a can containing a substance that is being heated. The temperature remains the same for several minutes, then it starts to rise.Without looking in the can, how does the student know what is occurring in

    asked on February 13, 2008
  86. English

    Parallelism can be defined as: a. clarifying main ideas through language choice and sentence structure. b. the process of revising two works simultaneously. c. varying the length and structure of sentences. d. using similar grammatical form for similar

    asked on July 13, 2019
  87. math

    the table shows the results of spinning a four-colored spinner 50 times. find the experimental probability and express it as a decimal PLEASE HELP I have to get this done by tonight

    asked on May 24, 2019
  88. Statistics

    Suppose the correlation between SAT Verbal scores and Math scores is 0.57 and that these scores are normally distributed. If a student's Verbals core places her at the 90th percentile, at what percentile would you predict her Math score to be/

    asked on January 22, 2008
  89. Math

    A diameter that is perpendicular to a chord bisects the chord. True or False

    asked on June 10, 2010
  90. math

    PLEASE I need all the answers to Lesson 5: Probability of Independent Events Quiz please help me out

    asked on May 24, 2019
  91. geometry

    The lengths of two sides of an isosceles triangle are 8 and 10. The length of the third side could be? A. either 8 or 10 B. 6, only C. 8, only D. 10, only

    asked on July 26, 2016
  92. Chemistry

    2NaN(3) > 2 Na +3N(2) What mass of sodium azide must be reacted to inflate and air bag to 70.0 L at STP?

    asked on October 19, 2014

    suppose you wish to estimate a population mean based on a random sample of n observations, and prior experience suggests that sd=12.7. if you wish to estimate the mean correct to within 1.6, with probability equal to .95, how many observations should be

    asked on November 15, 2010
  94. general math 1

    can you help me with penn foster general math 1 please exam #00701300

    asked on May 27, 2010
  95. Geometry

    write two conditional statements that make up the following biconditional statement: "Two lines are perpendicular if and only if their intersection creates 4 right angles."

    asked on January 10, 2012
  96. english

    What is the schwa sound in paper?

    asked on April 27, 2009
  97. the short story, part 2

    In "Young Goodman Brown," the allegorical meaning of Faith's pink ribbons is

    asked on November 13, 2008
  98. math

    Tickets to a concert cost $12 for kids and $15 for adults. A total of 300 tickets were sold and total receipts were $4140. How many were adult tickets and how many kids?

    asked on February 4, 2015
  99. chemistry

    1.00 of an aqueous solution contains 1.52g of a compound used in antifreeze. If the osmotic pressure of this solution at 20.0 degree C is 448 torr, calculate the molar mass of the antifreeze compound

    asked on April 28, 2014
  100. Physics

    A car going 15 m/s is brought to rest in a distance of 3 m as it strikes a pile of dirt.  How  large a force is exerted by the seatbelts on a 90 kg passenger as the car is stopped?

    asked on June 24, 2017


  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6