Newest questions and responses by Daniel
  1. pre-algebra

    the scale on a map is 1 cm: 7 km. if two cities are 15 cm apart on a map, what is the actual distance in the cities?

    asked on December 5, 2018
  2. chemistry

    what is the molar solubility of AgBr(s) in 3.0M NH3(aq)? Ksp of AgBr(s) is 5x10^-13, Kf of Ag(NH3)2+ is 1.6x10^7

    asked on December 4, 2018
  3. Math

    The 3rd and 9th term of a g.p are 54 and 39,336 respectively.find the 6th term,sum of 4th term,sum of 4th and 7th term and product of 2nd and 5th term

    asked on October 30, 2018
  4. chemistry

    what mass of lead || trioxonitrate(v) would be required to yield 12g of lead || chloride on the addition of excess sodium chloride solution (pb=207,N=1,o=16,Na=23,cl=35.5) pb(No)+2Nacl pbcl+2NaNo

    asked on October 18, 2018
  5. Physics

    A green car with a mass of 900 kg is placed in the back of a yellow tow truck that has a pivot at one end. The car is held in place with a chain at the top end of the lift, as pictured below. The chain holding the car in place can withstand a maximum force

    asked on September 15, 2018
  6. physics

    A group of particles is traveling in a magnetic field of unknown magnitude and direction. You observe that a proton moving at 1.50 km/s in the +x-direction experiences a force of 2.25x10- 16 N in the +y-direction, and an electron moving at 4.75 km/s in the

    asked on September 3, 2018
  7. Physics

    In a calorimeter can whose behaves thermally is.if it were equivalent with 40g of water

    asked on July 17, 2018
  8. Math

    A recipe for fruit punch calls for cranberry juice and sparkling water. The ratio of cups of cranberry juice to cups of sparkling water is 6:24. According to the recipe, how many cups of cranberry juice are needed for every 1.5 cup of sparkling water?

    asked on May 2, 2018
  9. English

    I need help with this essay and check all the grammar and help me with counterclaim THE BATTLE OF GAME CONSOLE For the past years, the war of the game console giants has been a continued and heated debate. Many claims and supports various kinds of game

    asked on March 28, 2018
  10. Science

    What causes seasons

    asked on March 8, 2018
  11. Science

    What does H2O stand for in science

    asked on March 8, 2018
  12. Calculus Please Help

    How much work is required to lift a 700kg satellite to an altitude of 1x10^6m above the surface of the earth? The gravitation force is F=GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The

    asked on February 15, 2018
  13. Math

    A fuel oil tank is an upright cylinder, buried so that its circular top 12 feet beneath ground level. The tank has a radius of 6 feet and is 18 feet high, although the current oil level is only 13 feet deep. Calculate the work required to pump all of the

    asked on February 15, 2018
  14. Math

    How much work is required to lift a 700kg satellite to an altitude of 1x10^6m above the surface of the earth? The gravitation force is F=GMm/r^2, where M is the mass of the earth, m is the mass of the satellite, and r is the distance between them. The

    asked on February 15, 2018
  15. Function Domain

    Giving your answer in interval notation, find the domain of the function sqrt(((x+4)(x−4))/((x−7)(x−5)))

    asked on February 9, 2018
  16. Sequences

    Like the Fibonacci sequence, a certain sequence satisfies the recurrence relation an=an−1+an−2. Unlike the Fibonacci sequence, however, the first two terms are a1=4 and a2=1. Find a32.

    asked on February 9, 2018
  17. Trigonometry

    If sin(a)=x and a∈(π/2,π), find a formula for the following in terms of x: a.) cos(a) b.) cos(3π/2+a) c.) tan(π+a)

    asked on February 9, 2018
  18. science

    an elephant of mass 50kg stands with all four feet on the ground. each foot has an area of 0.2m^2calculate the pressure exerted on the ground.[g=10m/s^2]

    asked on January 1, 2018
  19. Biology question pH

    pH levels are each a 10-fold change so a change by 2 is actually a change by 1000. pH determines certain characteristics in organisms that allow them to live in certain areas so an alteration in pH changes their adaption skills. why is a change by 2 =

    asked on December 9, 2017
  20. John

    solve the quadratic equation 2x^4-3x^3-7x^2 12x-4=0

    asked on November 11, 2017
  21. John

    solve the quadratic equation 4x^3-20x^3+13x+12=0

    asked on November 11, 2017
  22. NHD Project

    I was wondering if anyone would help me revise my history day thesis paragraph before I turn it in. The subject is on Pearl Harbor and relates to conflict and compromise. Japan, Germany, and Italy wanted to expand their empires vastly territorially. This

    asked on November 9, 2017
  23. American Government

    Representing the state in lawsuits and trials is the responsibility of which state official? A. attorney general B. treasurer C. governor D. secretary of state

    asked on November 2, 2017
  24. American Government

    The city council of Smallton has just chosen a new chief administrator. She will carry out the policies of the council and hire department heads. If the council is not pleased with her work, it has the ability to dismiss her at any time. Which form of city

    asked on November 2, 2017
  25. History

    Which accurately describes the involvement of the Catholic church in medieval European government? A. the rules and rituals of the church guided the administration of government in Europe. B. The Catholic Church forced European Kings to adopt the

    asked on November 1, 2017
  26. Trigonometry

    a boy standing 70m away from a flag–post observes that the angles of elevation of the top and bottom of the tower on top the flag–post are 70^ and 69^ respectively. Find the height of the tower

    asked on October 23, 2017
  27. Texas History

    Explain how the fall of the Alamo and the Goliad Massacre both helped and hurt the Texans` quest for independence in the Texas Revolution. PLZ HALP

    asked on October 20, 2017
  28. science biology quick question

    When applying the process of science, which is tested? A question B a result C an observation D a prediction E a hypothesis I know is D or E can you help me understand why D or E is the better choice?

    asked on October 12, 2017
  29. Algebra 2 A

    A candy store makes a 9-pound mixture of gummy candy, jelly beans, and hard candy. The cost of gummy candy is $2.00 per pound, jelly beans cost $3.00 per pound, and hard candy costs $3.00 per pound. The mixture calls for two times as many gummy candy

    asked on September 27, 2017
  30. Algebra 2 A

    What is the minimum value for z=3x-1/2y over the feasibility region defined by the constraints? a.-4 b.-5 c.-3 d.-6 constraints x greater than or equal to 0 y less than or equal to 8 y greater than or equal to x y greater than or equal to -1/2x+6

    asked on September 27, 2017
  31. Algebra 2 A

    A jet ski company charges a flat fee of $26.00 plus $3.25 per hour to rent a jet ski. Another company charges a fee of $24.00 plus $3.50 per hour to rent the same jet ski. Using a graphing calculator, find the number of hours for which the costs are the

    asked on September 27, 2017
  32. Chemistry

    If 0.525 g of Fe2O3 and xH2O are heated and 0.400 g of Fe2O3 are obtained, what is the value of x?

    asked on September 25, 2017
  33. math

    Wut is 40cm long

    asked on September 18, 2017
  34. Maths

    An 8 x 8 x 8 hollow cube is constructed from 1 x 1 x 1 cubes so that its six walls are 1 cube thick. The number of 1 x 1 x 1 cubes needed to make the hollow cube is A.169 B.296 C.298 D.384

    asked on July 29, 2017
  35. Math

    Plss help (3b-4a)(3b-4a)

    asked on June 7, 2017
  36. visual basic

    Write a visual basic program to calculate total pay of employee who get an additional pay of 10% to their basic salary if they worked for more than 10years for the company

    asked on May 30, 2017
  37. Math

    Solve for x under the assumption that x>0. Enter your answer in interval notion using grouping symbols. X-48/x

    asked on May 23, 2017
  38. Physics

    A roller coaster car is loaded with passengers and has a mass of 500 kg along with a speed of 18 meters/second at the dip. The radius of curvature of the track at the bottom point of the dip is 12 meters (gravity = 9.8 meters/second2). What force is

    asked on May 16, 2017
  39. English

    I wrote two thesis statements, which one is good. Which one should I use for my essay. 1) Over the recent years, the use of illicit drugs has increased to some extent with the rise of drug legalization campaigns, though, with reformation and implantation

    asked on April 29, 2017
  40. Economics

    The fixed cost of producing five units of a particular commodity is given as #900 while the total cost of producing the same five units of this commodity is #1000.the marginal cost of the 6th unit produced later is #200.calculate the average variable cost

    asked on April 9, 2017
  41. Algebra

    Can you guys help me solve this problem I dont know why I cant get it. Thanks. Solve for x. (26000-x)2813.95 + x(314.73)=26000(640.2)

    asked on March 29, 2017
  42. Math

    If a baseball and bat cost $110, and the bat costs $100 more than the ball, how much does the ball cost? I don't get it i say it's 10 but its not its 5 YYYYYYYYY

    asked on March 22, 2017
  43. Math

    Amanda increase the amount of protein she eats every day from 48 g to 54 g. By what percentage did amanda increase the amount of protein she eats?

    asked on March 21, 2017
  44. Algebra

    In 4 years time John will be half of the father's age his father will be 33 next year, how old will John be

    asked on March 17, 2017
  45. Algebra

    John will be half of the father's age his father will be 33 next year, how old will John be

    asked on March 17, 2017
  46. english

    _____ describes the life cycle of a star.

    asked on March 8, 2017
  47. Science

    If a bowling ball with a mass of 2.75kg. travels 27 meters in 7.6 seconds , how fast is it traveling?

    asked on February 3, 2017
  48. Geometry

    I scored 5616 on my Geometry scantron but that number is to large to make any sense. Is that a good or a bad score. I'm in 9th Grade.

    asked on January 31, 2017
  49. Inter Agric Science

    Explain the effect of carbonation, hydrotion,hydrlosis and oxidation

    asked on January 10, 2017
  50. Physics

    An empty bottle weighs 20 grams and 60 grams when filled completely with water.What would the bottle weigh when filled completely with mercury. [pw=1.0gcm^-3,pm=1.6gcm^-3]

    asked on January 8, 2017
  51. Math

    There will be 240 seats on the lawn for graduation. Show all the ways you can make equal rows of chairs if there are at least 5 rows.

    asked on December 25, 2016
  52. math

    the sides of a triangle are consecutive integers.If its perimeter is 126cm.find the lengths of the sides.

    asked on December 14, 2016

    At a temperature of 18.0°C of 23.0cm^3 of a certain gas occupies has pressure of 103 kPa. (a) What volume would the gas occupy at a temperature of 0.00°C and pressure of 101kPa? (b) 1.00 moles of a certain gas occupies a volume of 22.4 litres at 0.00°C

    asked on December 2, 2016
  54. Math

    If the diameter of a circle is 42cm;what is its radius. Show the formula and the calculation

    asked on November 28, 2016
  55. Computer Science (please help )

    Prove that if A is any language over the alphabet {0}, then A* is regular.

    asked on November 27, 2016
  56. Chemistry

    The equilibrium constant, K, for the following reaction is 1.54×10-2 at 506 K: PCl5(g) PCl3(g) + Cl2(g) An equilibrium mixture of the three gases in a 15.7 L container at 506 K contains 0.207 M PCl5, 5.64×10-2 M PCl3 and 5.64×10-2 M Cl2. What will be

    asked on November 26, 2016
  57. Economics(Help)

    Nancy is indifferent between a gamble that pays $625 with a probability of 20% and $100 with a probability of 80%, versus a sure payment of $269. She is also indifferent between another gamble that pays $269 with a probability of 50% and $10 with a

    asked on November 23, 2016

    Consider a solid ball of mass m = 50g and is placed on a long flat slope that makes an angle of 30° to the horizontal. The ball was initially at rest and was then released such that it rolled down the slope without slipping. With a detailed explanation of

    asked on November 22, 2016
  59. Mathss

    Calculate the area of the following triangles, giving your answers to 2 decimal places: (a) The right-angled triangle with sides a=16, b=63, and c=65. (b) The triangle with angle α = 40° and adjacent sides b=10 and c=20.

    asked on November 21, 2016
  60. Math.

    Each boksheld in the library holds 82. There are 24 full bookshelves in the library. How many books are in library.

    asked on November 17, 2016
  61. Microeconomics

    LTC=2q-2q^2+q^3 Demand p=100-q Determine the long run equilibrium Price Representative firm's output(q) Industry output q and number of firm's in the industry

    asked on November 15, 2016
  62. Physics

    Suppose that a cars x-acceleration during a certain time period is given by the function a(t) = -bt. If the cars x-velocity at t=0 is 32m/s, and b=1m/s^2, how long will it take the car to come to rest.

    asked on November 1, 2016
  63. math

    Daniel is now six times as old as Mabel in twelve years time Daniel will be two times as old as Mabel .how old are they

    asked on October 30, 2016
  64. physis

    (1) A solid weight 0.04 Newton in air and 0.024 newton when fully immersed in liquid of density 300 kilogram per metre cube.What is the volume of the solid? (2)The density of a body is 5*10^3 kilogram per metre cube and it weights 1 newton in air

    asked on October 23, 2016
  65. Physics

    a twin engine plane flies due south with an air speed of 335km/h. There is a wind blowing at 75km/h to the east relatve to the ground. what are the plane's speed and direction relative to the ground

    asked on October 19, 2016
  66. Math

    a family budgets 1/2 of its income for housing and 1/3 for food what fraction of their budget do these expenses cover

    asked on October 18, 2016
  67. Math

    the towns highway department marks a new road with reflective markers the road is 6 3/4 miles in length the markers are spaced every length 1/8 of a mile. What is an expression that can be used

    asked on October 14, 2016
  68. Marya

    Ali has a smooth convex utility function. He is optimizing. The price of x changes, and it has no effect on his consumption of y. Is this possible? Show in diagram why or why not.

    asked on October 9, 2016
  69. Economics

    If Joe is currently consuming 64 nuts and 10 berries, what is the largest number of berries he would be willing to give up in exchange for 17 additional nuts?

    asked on October 9, 2016
  70. Set Theory

    Let the Universal Set, S, have 136 elements. A and B are subsets of S. Set A contains 34 elements and Set B contains 98 elements. If Sets A and B have 22 elements in common, how many elements are in A but not in B?

    asked on October 8, 2016
  71. History

    Why was the act of toleration enacted? A To ensure African Americans could Maintain their own religious practices B To provide freedom of religion for the Jews C To retain a separation between the church and state D To safeguard freedom of worship to

    asked on October 6, 2016
  72. physics

    What is the resultant displacement when a ship sail 200km north and then 150km west

    asked on September 12, 2016
  73. math

    Which of the following is not one ways to express a ratio

    asked on August 26, 2016
  74. math

    Which of the following is not one of the three ways to expree a ratio 3-4 3:4 3 of 4 3to 4

    asked on August 19, 2016
  75. English

    Change into passive - I have been registering scores like that.

    asked on August 3, 2016
  76. math

    Solve 2 + 2 sin θ = 3 cos^2 θ. Give the general solution and then give solutions in [−π, π] How do i solve for theta?

    asked on July 28, 2016
  77. maths

    The temperature in a town was 24 degrees at midday. The temperature rose by 5 degrees to reach a maximum at 2pm and the dropped 17 degrees before midnight. what was the temperature at midnight?

    asked on July 24, 2016
  78. Math

    Solve the equation X + 24 = 36; x =

    asked on July 24, 2016
  79. physics

    A car on the bridge weighs 2oooN and is 6m away from one of the bridge piers and 4m from the other. How much force does each pier exert to support the car? Pivot point is the weight of the car on the bridge.

    asked on July 12, 2016
  80. Math

    A cylindrical water tank is 70cm in diameter to begin with it is full of water a leak starts in the bottom so that it looses 10 litres every 1 hour how long will it take for the water level to fall by 20cm.

    asked on June 10, 2016
  81. math

    a plumber charges $25 for service call plus $50 per hour what is the cost 8 hours? What is 10 hours?

    asked on May 17, 2016
  82. Algebra

    Solve (10x^3+30x-20)÷(-5x+5) 2x^2-2x+4 -2x^2-2x-4 -2x^2+2x+4 2x^2+2x-4

    asked on May 10, 2016
  83. Accounting

    Aunt Rhea Corporation Income Statement For the Year Ended December 31, 2015 Service Revenue $ 900,000 Operating Expenses 700,000 Net Income before Income Tax $ 200,000 Gain on Investment Sale 10,000 Net income Before Income Taxes $ 210,000 Income Tax

    asked on May 2, 2016
  84. Chemistry

    Complete and balance these half-equations. Express as net ionic eqn. 1.) Cr2O7(2−) → Cr(3+) (acidic solution) So far, I have: Cr2O7(2−) + 14H + 6e(-) →2Cr(3+) + 7H20 2.) C2O4(2−) → CO2 (acidic solution) Not sure how to do this one. Thank you.

    asked on April 15, 2016
  85. math

    Sam has 9yellow pencils in his desk three fourth of his pencils are yellow how many pencils does sam have in his desk

    asked on April 9, 2016
  86. ratio and proportion

    Three villages share water from a water tank.The tank holds 3,600 gals of water. The villages used the following ratio 2:3:4. how many gallons does village b use? how many gallons does a and c use together? wahat is the difference on the amount used by c

    asked on April 6, 2016
  87. division and remainder...error ws from my teacher not me

    1+2^2+3^3+4^4+.....+10^10 when is is divided by 5 what is the remainder!! show working,please have been trying that i could not,get it

    asked on March 23, 2016
  88. divison&remainder

    1^2+2^2+3^2+.......+10^10 when divide by 5 whats the remainder i made no typo that's the question i proff read

    asked on March 23, 2016
  89. remainder help!@steve and damon

    1^2+2^2+3^2+......+10^10 when it divided by 5 what the remainder???? even a hint can,t help me my head is fried have been do math alday just show me the working i beg!

    asked on March 22, 2016
  90. Science

    is there a chart available that show the vapor pressure of Isopropyl alcohol and water solutions at 68 degrees F ?

    asked on March 18, 2016
  91. calculus!!!! help


    asked on March 16, 2016
  92. calculus help!!!!! plz


    asked on March 16, 2016
  93. maths

    find the encentricity,the foci and vertex and the equation of directrix and asymptote to the equation give the ellipse below 25x^2+4y^2-50x-16y-59=0

    asked on March 16, 2016
  94. maths help!!!

    the first four terms in the expansion of (1-x)^n are 1-6x+ax^2+bx^3.find the n and also the respective value for a and b

    asked on March 16, 2016
  95. physics

    compute the mass of the following assuming if it to be a sphere of radius 6370km

    asked on March 16, 2016
  96. maths


    asked on March 16, 2016
  97. math

    How to write a real world problem that compares the ratios 5to 9 and 12to 15

    asked on March 14, 2016
  98. physics

    The displacement of a particle is given by S = a+bt+ct^2. Deduce the dimensions of the constants,a,b,and c appearing in the question.

    asked on March 8, 2016
  99. Math Trigonometry

    A bus driver driving south along a highway is 16 km from the nearest city. After traveling a distance of 32 km, the driver finds he is 19 km away from the same city. Find the bearing of the town from the second position of the motorist.

    asked on March 4, 2016
  100. math 8th

    The scores on a test are found by adding and subtracting points as shown in table below. If Salazar's score on a 15 question test was 86 points,how many of his answers were correct, incorrect and blank. Answers Points correct +8 incorrect -4 blank -2 86

    asked on March 3, 2016


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