# Aj

Popular questions and responses by Aj
1. ## geometry

Which equation in slope-intercept form represents a line that passes through the point (5,−1) and is parallel to the line y=2x−7? y=2x−11 y=−9x−7 y=2x−9 y=−12x−7 y=−11x−7 B?

2. ## Math

Nine more than the product of 22

3. ## History

In 1885, European leaders at the Berlin Conference agreed to the rules for dividing African territory. How did this agreement change the geographic characteristics of Africa? a)Large wildlife reserves were created throughout Africa. b)Ethnic groups were

4. ## physics

Determine the resulting temperature when 150g of ice at 0°C is mixed with 300g of water at 50°C

5. ## algebraic modeling

A toy manufacturer determines that the daily cost,C, for producing x units of a dump truck can b approximated by the function c(x)=0.005x^2-x+109 I got that the manufacturer must produce 100 units per day... What is the minimum daily cost?

6. ## World History

What was a key battlefront between Great Britain and Turkey in World War I? Battle of Verdun Gallipoli Campaign Brusilov Offensive Battle of the Somme c?

7. ## Chemistry

When .560 g of Na(s) reacts with excess F2(g) to form NaF(s), 13.8 kJ of heat is evolved at standard-state conditions. What is the standard enthalpy of formation of NaF(s)? Start off by balancing the equation: 2Na(s) + F2(s) ---> 2NaF(s) Then make it for

8. ## Math

If sin(x) = 1/3 and sec(y) = 29/21 , where x and y lie between 0 and π/2, evaluate the expression using trigonometric identities. (Enter an exact answer.) cos(2y)

9. ## Physics

A variable-length air column is placed just below a vibrating wire that is fixed at the both ends. The length of air column open at one end is gradually increased from zero until the first position of resonance is observed at 20 cm. The wire is 115.4 cm

10. ## govt

Which act is an example of governor's use of legislative powers? a firing a parks commissioner b rejecting part of a recycling bill c pardoning a former senator d assessing flood-control efforts

11. ## History

What led to the Boxer Rebellion? The Open Door policy led other nations to carve out spheres of influence in China, leading to condemnation of the imperialists. European attempts to introduce industrialization in mainland Asia led the Chinese to react by

23. ## government

Which institution developed outside the limits of the written Constitution of the United States?

24. ## physics

A 500g block is released from rest and slides down a frictionless track that begins 2m above the horizontal. At the bottom of the track, where the surface is horizontal, the block strikes and sticks to a light spring with a spring constant of 20.0N/m. Find

25. ## math

(a). Determine the DFS tree of K3,3. (b). Determine the BFS tree of K3,3.

30. ## Economics

Suppose that when disposable income rises from $5.2 trillion to$6.0 trillion, consumption rises from $5.0 trillion to$5.6 trillion. What is the marginal propensity to consume?

31. ## calculs

A page of 150 square inches is to have margins of 1 inch on either side and 1 1/2 inches at the top and bottom, as in the diagram. Find the dimensions of the page that maximize the print area.

32. ## Probability

Four distinct fair of dice are rolled. What is the probability that the sum of the resulting numbers is at least 23?

33. ## Algebra

Jack and Jill regularly run around an 800-meter track, but Jack runs 2 m/s faster. If they start from the same point on this track, and run in the same direction, Jack will eventually pass Jill in 6 minutes and 40 seconds. What is Jill's speed?

34. ## Math

A running track consists of two straight sections with semi-circular ends. If the straight sections measure 100 metres and one compete lap on the inside of the track measures 1/2 k, what is the distance x between the two straights?

35. ## Physics

A dart is thrown horizontally with an initial speed of 14 m/s toward point P, the bull's-eye on a dart board. It hits at point Q on the rim, vertically below P, 0.19 s later. (a) What is the distance PQ? (b) How far away from the dart board is the dart

36. ## Physics

You are standing on a fish pond wishing to catch a fish. How would you aim your fish gun in order to catch a fish which your eyes could see 20 cm below the surface of water ? will u aim higher , lower or exactly on the location of the fish as seen by your

37. ## English

What type of clause or phrase is italicized in the sentence below? The play, a three-act farce, amused everyone.

38. ## Physics

A wire with a circular cross section and a resistance R is lengthened to 3.77 times its original length by pulling it through a small hole. After being pulled through the hole, the total volume of the wire is unchanged. Find the resistance of the wire

39. ## Physics

To demonstrate standing waves, one end of a string is attached to a tuning fork with frequency 120 Hz. The other end of the string passes over a pulley and is connected to a suspended mass M, as shown. The value of M is such that the standing wave pattern

40. ## Physics

The lowest A on a piano has a frequency of 27.5 Hz. Assume: The tension in the A piano wire (of length 0.51 m) is 305 N, and one-half wavelength occupies the wire. What is the mass of m the wire? Answer in units of kg.

41. ## Physics

An ac generator supplies an rms voltage of 5.00 {\rm V} to an RL circuit. At a frequency of 21.0{\rm kHz} the rms current in the circuit is 45.0 {\rm mA}; at a frequency of 26.0{\rm kHz} the rms current is 40.0 {\rm mA}. Find value of L an R ?

Joseph always throws change into a can and takes it out every two weeks. This time it is all nickels and dimes. There are six times as many dimes as nickels, and the value of the dimes is $4.95 more than the value of the nickels. How many nickels and dimes asked on April 22, 2012 43. ## govt In 21 states voters may propose and pass laws without the legislature a.by direct initiative b by indirect initiative c by optional referendum d by mandatory referendum asked on July 14, 2011 44. ## exp of math add and simplify 96/125 + 83/125 + 2/15 = asked on July 14, 2011 45. ## math A man is 67 7/18 taller than his son his son is 65 ¾ tall how much taller is the man? asked on July 14, 2011 46. ## physics A projectile was fired at 35 degrees above the horizontal. At the highest point in its trajectory its speed was 200 m/s. If air resistance is ignored, the initial velocity had a horizontal component of 0. How is this possible? Someone explain it for me asked on November 30, 2010 47. ## Math 5th grade how is the number of zeros in the quotient of 420 divided 7 = 60 related to the number of zeros in the dividend asked on November 30, 2010 48. ## chemistry How do you balance this redox rxn? Al + HNO3 ----> Al(NO3)3 + NH4NO3 +H2O asked on April 22, 2009 49. ## Chemistry In a car gas tank, 46.0 g of gasoline burns consuming 173 g of oxygen. The resultant products are carbon dioxide are carbon dixide and water. What is the total combined mass of the products? Would it be 173g - 46.0g = 127g asked on February 4, 2008 50. ## calculus Find the value of$800 deposited in a bank at 10% interest for 8 years compounded in the following ways. (Round your answers to the nearest cent.) (a) annually_________$(b) quarterly_________$ (c) continuously________$asked on March 7, 2018 51. ## calculus Marine ecologists estimate the reproduction curve for swordfish in a fishing ground to be f(p) = −0.01p^2 + 8p, where p and f(p) are in hundreds. Find the population that gives the maximum sustainable yield, and the size of the yield. asked on March 4, 2018 52. ## Maths 17. Atlanta, Georgia, receives an average of 27 inches of precipitation per year, and there has been 9 inches so far this year. How many more inches, p, of precipitation can Atlanta get and to stay at or below the average? (1 point) p + 9 > 27; p > 18 9 + asked on February 4, 2018 53. ## Math True or False. 1. Every function is a relation. 2. When you switch the inputs and outputs of any function, the resulting relation is a function. asked on February 3, 2018 54. ## Chemistry Write the balanced chemical reaction (showing appropriate symbols and states) for the chemical reaction with enthalpy change equal to and defined by the quantity dHformation [NH3(g)] N2(g) + 3H2(g) --> 2NH3(g) Is that all the question is asking for? asked on March 26, 2017 55. ## Chemistry The enthalpy of formation for a substance corresponds to the enthalpy change for a reaction. Write the specific chemical reaction defining the enthalpy of formation of butane: Just checking to make sure this is correct: 4C + 5H2 ---> C4H10 asked on March 26, 2017 56. ## Math A soccer field has a perimeter of 26 yards.if the width is 8 yards,how long is the length? asked on January 24, 2017 57. ## Geography which demographic group is correctly matched with its issue A.religious people - farm subsidies B.midwesterners - farm subsidies C.single parents - affirnmative action D.all are matched correctly asked on March 16, 2016 58. ## Maths The sum of two digits number is 7. In changing position of digits we get the number 9 less than the original number. What is number? asked on December 31, 2015 59. ## maths THIS IS NOTHING TO DO WITH A LADDER A fence 3m tall is erected vertically and parallel to a building that is 10m away please can someone tell me the maximum length of the shadow the fence will cast on the ground - thank you asked on November 4, 2015 60. ## Math 2/3>3/ number that makes the statement true.. I am confused asked on October 13, 2015 61. ## Algebra The time, t, required to drive a certain distance varies inversely with the speed, r. If it takes 12 hours to drive the distance at 60 miles per hour, how long will it take to drive the same distance at 85 miles per hour? A. About 7.08 hours B. About 5.00 asked on June 2, 2015 62. ## math Why Was the Engineer Driving the Train Backwards? asked on March 27, 2015 63. ## math -hw help Determine whether the following regular tetrahedrons have an edge length that is a whole number, a rational number or irrational number. The surface are of a tetrahedron is given by the equation: SA = √ 3s^2 Surface are of regular tetrahedron A = 1.5 asked on February 5, 2015 64. ## Physics(Science) Waves on a 5.0 m rope travel at a speed of 92 m/s. If the tension in the rope is 497 N, what is the mass of the rope? asked on October 26, 2014 65. ## Spelling Wordly wise 3000 book 7 lesson 7c vocab answers? asked on December 17, 2013 66. ## trig the pendulum of a grandfather clock is 1.3m long. Determine the length of the arc through which the pendulum moves if it moves through an angle of 15 asked on November 8, 2012 67. ## Physics A current of 4 A flows in a copper wire 10 mm in diameter. The density of valence electrons in copper is roughly 9 × 1028 m−3. Find the drift speed of these electrons. Answer in units of m/s. asked on November 1, 2012 68. ## Physics The lowest A on a piano has a frequency of 27.5 Hz. Assume: The tension in the A piano wire (of length 0.51 m) is 305 N, and one-half wavelength occupies the wire. What is the mass of m the wire? Answer in units of kg. asked on October 5, 2012 69. ## Physics A length of organ pipe is closed at one end. If the speed of sound is 344 m/s, what length of pipe is needed to obtain a funda- mental frequency of 70 Hz? Answer in units of m. asked on October 1, 2012 70. ## Physics A pipe that is open at both ends has a fundamental frequency of 330 Hz when the speed of sound in air is 333 m/s. What is the length of this pipe? Answer in units of cm. What is the second harmonic? What is the third harmonic? Answer in units of Hz. What asked on October 1, 2012 71. ## geometry Find the volume of a rectangular solid with the following dimensions: 2√3 cm x 7√5 cm x 4√6 cm. asked on July 25, 2012 72. ## math solve the equation for x. write the solution set . -x2 + 12x = 0 asked on May 18, 2011 73. ## us history list two reasons that stereotypes creted by propaganda may gave affected the deciosion to drop the atomic bomb on japan asked on April 19, 2011 74. ## Physics A motorboat travels at a speed of 40 km/h relative to the surface of the water. If it travels upstream against a current of 12 km/h what is the boats speed relative to the shore? asked on April 15, 2011 75. ## Math A man and his wife share a sum of money in the ratio 3:2. If the sum of money is doubled, in what ratio should they divide it so that the man still rceives the same amount? asked on October 17, 2010 76. ## Science-Physics HELP A S.S. automobile travels N at 40 km/h and a P.A. automobile travels E at 50 km/h. Relative to the observer riding in the S.S. auto what are the x and y components of the velocity of the P.A. car? The x axis is to the E and the y axis is to the N. asked on September 13, 2010 77. ## Math (easy question) Given the function f(x) = 1/(sqrt x) a. Does f(x) exist at x=0? b. Does f'(x) exist at x=0? c. Explain why integral (from 0->1) f(x)dx does exist. THANK YOU. asked on July 23, 2010 78. ## geo what are the human activities in the innuitian mountains? asked on January 9, 2010 79. ## language arts According to the author, _____. asked on December 17, 2009 80. ## Accounting Explain the accounting purpose of each general ledger cycle asked on September 14, 2009 81. ## vocabulary (sentences) hi i need a sentence for partisan... please help asked on February 6, 2008 82. ## science Bess filled a syringe with water and left it by the sink in the sunshine. Ten minutes later she saw a puddle of water under the syring tip so she thought it was broken, but it wasnt. What do you think caused the little puddle of water to appear under the asked on February 4, 2008 83. ## algebra Emily wants to buy turquoise stones on her trip to New MExico to give to at least 4 of her friends. The gift shop sells stones for either$4 or $6 per stone. Emily has no more than$30. What are the system of inequalities so I could be able to graph them?

Who is the antagonist in "The Face on the Milk Carton"? Also, what is the climax and what is the type of conflict. Please and thank you. Please check this site. http://en.wikipedia.org/wiki/The_Face_on_the_Milk_Carton Thank you for the site, but it still

85. ## geometry

suppose the diameter of a circle is 20in. long and a chord is 16in. long. What is the distance from the center of the circle to the chord Draw a radius from the center to the end of the chord. THe draw a radius from the center perpendicular to the chord.

86. ## Biology

What law of thermodynamics explains the fact that if you drop an egg, the shell will not spontaneously repair itself? The second law

87. ## English

Read the passage from “Why Leaves Turn Color in the Fall.” Was that a goldfinch perching in the early September woods, or just the first turning leaf? A red-winged blackbird or a sugar maple closing up shop for the winter? What is the figurative

88. ## Science

What is polluting the water in Watertown

89. ## physics

Evelyn lifts a 180-kg barbell to a height of 1.95 m. What is the increase in the potential energy of the barbell?

90. ## social studies

Compare the GDP of Kenya, Nigeria and South Africa? Suggest two reasons for the differences between the GDP of the countries

91. ## Math

Three friends want to share five brownies so each friend gets the same amount. How much brownie will each friend get?

92. ## Science

What defined the Ordovician period?

93. ## math

The angle of elevation of the sun is 27 degree. If a tree is 12 yd tall how long will the shadow be?

94. ## Math

How to get 2 equivalent fractions to 28/32

95. ## science

what mass of copper at 90 degrees celcius when added to 200g of water at 15 degrees celsius contained in a 100g aluminum calorimeter will give a final temperature of 25 degrees celcius

96. ## Math

If 2 equals 14, what does 5 equal?

97. ## social studies

East Asian nations have imposed tariffs and other trade barriers to protect their industries, but these barriers have economic growth. benefitted encouraged slowed sped up Which major threat does North Korea pose for the region? A. North Korea's nuclear

98. ## social studies

Which is a source of political conflict between China, Japan, and South Korea today? A. trade barriers B. nuclear weapons development /my answer/ C. land claims in the South China Sea D. economic sanctions

99. ## Chemistry

If I am asked to find the # of unpaired electrons in a molecule, do I just find the number of unpaired electrons for each atom and add them together? For example, MgSO4. Mg has 0 unpaired electrons. S has 2 unpaired electrons. O has 2 unpaired electrons.