K

Newest questions and responses by K
  1. Social Studies

    What is a republic? What is a constitutional republic? I think C. A republic with a Constitution.

    asked on October 18, 2018
  2. Physics

    What is the ultimate strength and how can it be determined?

    asked on October 3, 2018
  3. Math

    4x=36

    asked on September 29, 2018
  4. c programming

    write a program and create a flowchart or psuedocode that will ask the user for 3 grades. the program will calculate the average on those 3 grades. the program will display the 3 grades the average and the letter grade.

    asked on September 29, 2018
  5. Biology

    What selective advantages drove the development of sexual reproduction, and how did it develop?

    asked on August 10, 2018
  6. Science

    The dimensional formula of density of pressure is D= force/ area = Md^-1T^-2 What does M, d and T and their exponents mean?

    asked on July 20, 2018
  7. Physics

    A Ferris wheel with radius 9.5 m initially rotates at a constant rate by completing 0.75 rev in 25.00 s. It then begins to decelerate at a rate of 0.30 rad/s2 with its only passenger at the top of the wheel. Find the direction of the total acceleration

    asked on July 19, 2018
  8. Second solution for ambiguous case?

    Given a = 31.5, b = 51.8, A = 33 degrees, find the value of c in triangle ABC. bsinA = 51.8sin33 = 28.21 -> bsinA < a < b so there are two solutions Using sine law: sinB/b = sinA/a sinB/51.8 = sin33/31.5 sinB = 51.8 * sin33/31.5 sinB = 0.895628635 B =

    asked on July 17, 2018
  9. Math

    Question : find (h,k) and radius x^2 + y^2 +1/2x + 2y +1/16 = 0 According to the equation : (x−h)^2+(y−k)^2 = r^2 x^2 + y^2 +1/2x + 2y +1/16 = 0 (x^2+1/2x+1/16)+(y^2+2y+1)=−1/16+1/16+1 (x+1/4)^2+(y+1)^2=1 so (h,k) = (-1/4, -1) and r = 1 theres no

    asked on May 8, 2018
  10. Math

    A car traveling from town A to town B at an average speed of 80 km/h took 54 minutes. Another car took 40 minutes to travel the same distance. What was the difference in their speed in km/h?

    asked on May 6, 2018
  11. chemistry / science

    With regard to Stainless Steels, how is a passive layer regenerated? thanks in advance!!

    asked on April 29, 2018
  12. math

    An Artisan has 63 kg of metal of density 7,000kg/m3. He intends to use make a rectangular pipe with external dimensions 12 cm by 15 cm and internal dimensions 10 cm by 12 cm. Calculate the length of the pipe in meters.

    asked on April 15, 2018
  13. math

    Manyatta Village is 74 km North West of Nyangata Village. Chamwe village is 42 km west of Nyangata. By using an appropriate scale drawing, find the bearing of Chamwe from Manyatta.

    asked on April 14, 2018
  14. math

    The angle which the tangent to the curve at the point (2, 5) makes with the horizontal

    asked on April 14, 2018
  15. Math

    The Position of two A and B on the earth’s surface are (36°N, 49°E) and (36°N, 131°W ) respectively. (a) The difference in long between town A and town B (2 marks) (b)) Given that the radius of the earth is 6370, calculate the distance town A and

    asked on April 14, 2018
  16. math

    Find the reciprocal of 0.342. Hence evaluate:(√0.0625/0.342)

    asked on April 14, 2018
  17. Chem - Redox rxn

    Just wanna make sure, if i did it correct or not. Cl2 + 2NaBr --> Br2 + 2NaCl (0)---(+1)--(-1)---(0)------(+1)(-1) So Cl2 loss = oxidation Br2 Gain = Reduction Am I correct ? Thanks

    asked on April 8, 2018
  18. Math

    The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm the diameter is 2 cm while that of neck is 2 cm. The vertical height of the flask is 12 cm. (a) the slant height of the frustum part; (b) the slant height of

    asked on April 4, 2018
  19. Math

    The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm the diameter is 2 cm while that of neck is 2 cm. The vertical height of the flask is 12 cm. (a) the slant height of the frustum part; (b) the slant height of

    asked on April 3, 2018
  20. Math

    The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm the diameter is 2 cm while that of neck is 2 cm. The vertical height of the flask is 12 cm. (a) the slant height of the frustum part; (b) the slant height of

    asked on April 3, 2018
  21. Chemistry

    A 50.0 −mL sample of 1.50×10−2 M Na2SO4(aq) is added to 50.0 mL of 1.23×10−2 M Ca(NO3)2(aq). What percentage of the Ca2+ remains unprecipitated? Calculate the moles of Ca(NO3)2 you have (concentration * volume in L). Moles of Ca(NO3)2 = moles of

    asked on April 1, 2018
  22. Chemistry

    A possible reaction for converting methanol to ethanol is CO(g)+2H2(g)+CH3OH(g)→C2H5OH(g)+H2O(g) ΔH0 for this reaction at 25∘C. ΔH0 = -165.7 kJ ΔS0 for this reaction at 25∘C. ΔS0 = -227.4 J/K ΔG0 for this reaction at 25∘C. ΔG0 = -97.9 kJ -

    asked on March 30, 2018
  23. Math

    The flask consist of a cylindrical part and a frustum of a cone. The diameter of the base is 10 cm while that of neck is 2 cm. The vertical height of the flask is 12 cm. (a) the slant height of the frustum part; (b) the slant height of the smaller cone

    asked on March 20, 2018
  24. Math

    Two shopkeepers, Juma and Wan bought some items from a wholesaler. Juma bought 18 loaves of bread, 40 packets of milk and 5 bars of soap while Wan bought 15 loaves of bread, 30 packets of milk and 6 bars of soap. The price of a loaf of bread, a packet of

    asked on March 18, 2018
  25. Math

    Two shopkeepers, Juma and Wan bought some items from a wholesaler. Juma bought 18 loaves of bread, 40 packets of milk and 5 bars of soap while Wan bought 15 loaves of bread, 30 packets of milk and 6 bars of soap. The price of a loaf of bread, a packet of

    asked on March 18, 2018
  26. math

    Three factories Buka, Sakono and Rama produce sugar in one hundred kilogram bags daily. Buka produces three times as much as Rama. Sakono produced two times as much as Rama. If Sakono produces 500 bags, how many tones altogether do three factories produce

    asked on March 17, 2018
  27. Chemistry - acid base

    You are asked to bring the pH of 0.500 L of 0.450 M NH4Cl to 7.00. 12.0 M NH3 How many drops (1 drop 0.05 mL) of this solution would you use? What I did, but its incorrect Using HH equation I found out NH4 pKa = 9.24 from table pH = pKa + log [A-] / [HA]

    asked on March 10, 2018
  28. Chemistry - acid base

    A 50.0 mL sample of 1.50×10−2 M Na2SO4(aq) is added to 50.0 mL of 1.23×10−2 M Ca(NO3)2(aq). What percentage of the Ca2+ remains unprecipitated? What I did n=CV Na2SO4 = (1.50×10−2 M)(0.05L) = 0.00075 Ca(NO3)2 = (1.23×10−2 M)(0.05L) = 0.000615

    asked on March 10, 2018
  29. Chemistry - acid base

    What volume of 10.0 M NaOH is needed to prepare a buffer with a pH of 7.79 using 31.52 g of TrisHCl? ( Tris. At 25 ∘C, Tris has a pKb of 5.91 ) a) The buffer from Part A is diluted to 1.00 L. To half of it (500. mL), you add 0.0250 mol of hydrogen ions

    asked on March 9, 2018
  30. Math

    The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of the triangle. Please provide COMPLETE solution and FINAL ANSWER.

    asked on March 3, 2018
  31. Math

    The two legs of a right triangle are in the ratio √3/2. If the hypotenuse is 10 units long, find the area (in square units) of the triangle.

    asked on March 3, 2018
  32. Pre-Algebra

    Hi has anyone done lesson 10: Geometry Unit Test Essential Algebra Readiness (Pre-Algebra) B Unit 1: Geometry i really need help has anyone done it please if u have please help!!!!

    asked on February 24, 2018
  33. Pre-Algebra

    Hi i need help with lesson 10: Geometry Unit Test Unit 1 1. Name a pair of complementary angles. 1 and 4 1 and 2 3 and 4 1 and 6 2. If m

    asked on February 24, 2018
  34. Chem

    A sample of NH4HS(s) is placed in a 2.61 −L flask containing 0.120 mol NH3(g). NH4HS(s)⇌NH3(g)+H2S(g) Kp=0.108 at 25∘C Part A What will be the total gas pressure when equilibrium is established at 25∘C? I'm getting P = 1.21atm which is wrong. Can

    asked on February 22, 2018
  35. Math

    the position vectors od points A and B woth respect to the original O, are (-8,5)and (12,-5) respectively. point M is the midpoint of AB and N is the midpoint of OA. Fin the coordinate of N and M; the magnitude of NM

    asked on February 16, 2018
  36. Math

    Use mathematical induction to prove the property for all positive integers n. A factor of (n^3+3n^2+2n) is 3.

    asked on February 14, 2018
  37. Math

    Three factories Buka, Sakono and Rama produce sugar in one hundred kilogram bags daily. Buka produces three times as much as Rama. Sakono produced two times as much as Rama. If Sakono produces 500 bags, how many tones altogether do three factories produce

    asked on February 7, 2018
  38. Math

    Twenty members of a group contributed sh 80000 each to buy a piece of land. They already had sh 120000 in a bank out of which sh 20000 was to remain in the bank and the rest spent in buying the price of land. How much did the piece of land cost?

    asked on February 3, 2018
  39. Math

    Twenty members of a group contributed sh 80000 each to buy a piece of land. They already had sh 120000 in a bank out of which sh 20000 was to remain in the bank and the rest spent in buying the price of land. How much did the piece of land cost?

    asked on February 3, 2018
  40. Math

    Pupils in a school prepared a circular flower garden of diameter 28 meters. They dug holes each 4 meters apart along the circumference for planting flowers. How many holes were dug?

    asked on February 3, 2018
  41. math

    The number of children at a film show was 49 more than that of adults . They entry fee for each child was sh 15 while that of each adult was sh 30. The total amount of money paid by the was sh 2055. How much money was paid by the children and the adults

    asked on February 3, 2018
  42. Math

    Mwachia and Mbuu shared some money in the ratio 5:2. Mbuu received sh 30 less than Mwachia. How much money did Mbuu get?

    asked on January 29, 2018
  43. Math

    A tailor made 48 pieces of uniform. Half of the number of the uniforms was each made using 1 1⁄4 meters of material. A quarter of the remainder was each made using 1 1⁄2 meters of material and the rest was each made using 1 3⁄4 meters of material.

    asked on January 26, 2018
  44. Government HELP

    How are the first amendment rights seen in the constitution? Like how congress can't change religion

    asked on January 23, 2018
  45. Math

    In a cupboard there are pencils, rulers and books. The number of pencils is 15 more than that of rulers. The number of books is three time that of rulers. If the number of pencils is p, which one the total number of items in the cupboard?

    asked on January 15, 2018
  46. math

    What is the area of the region bounded by the x-axis and the lines x+y=24 and 3x-2y=12? Please show full solution and explanation

    asked on December 19, 2017
  47. math geometry

    A right circular cone has a base diameter of 10 and a height of 18. A second right circular cone has a base diameter of 15. If the volume of the second cone is equal to the volume of the first cone, then what is the height of the second cone? provide

    asked on December 19, 2017
  48. math

    A right circular cone has a base diameter of 10 and a height of 18. A second right circular cone has a base diameter of 15. If the volume of the second cone is equal to the volume of the first cone, then what is the height of the second cone?

    asked on December 19, 2017
  49. math

    The Southeastern Conference (SEC), has fourteen universities, each of which fields a football team. The football teams are divided into two seven-team divisions. Each season, every team plays every other team in its division once, and also plays two teams

    asked on December 19, 2017
  50. math probability

    Three cards are drawn at random without replacement from a standard fifty-two card deck of playing cards. What is the probability that among the three cards there is a pair or three of a kind? please provide complete solution with explanations:)

    asked on December 19, 2017
  51. math

    Ben can run six miles in forty-eight minutes. If Luke can run twenty percent faster than Ben, how many minutes will Luke take to run nine miles? Please provide COMPLETE solutions with explanation please

    asked on December 19, 2017
  52. Math (check answers)

    1. Write the equation of a line in slope intercept form that is parallel to y = 3x - 2 and passes through the point (-2, 1) y = -3x-5? 2. Write the equation of the line that passes through (2, 1) and is perpendicular to 5x + y = 9. x + 5y = 3?

    asked on December 15, 2017
  53. Mathss

    Item 20 A bathtub is draining at a constant rate. After 2 minutes, it holds 28 gallons of water. Three minutes later, it holds 7 gallons of water. Write an equation that represents the number y of gallons of water in the tub after x minutes.

    asked on December 7, 2017
  54. Algebra: simplifying polynomials

    Please simplify the following. Please show solution if possible:) Question 1: (x^3 + x^2 - y^3 - y^2) / (x^2 - 2xy + y^2) Question 2: (u^6 + v^6 + 2u^3 • v^3) / [u^3 - v^3 + (u^2 • v) - (u • v^2)]

    asked on October 16, 2017
  55. History

    How are religion and culture connected? (Essay)

    asked on October 10, 2017
  56. Math

    Determine the number of factors of 5^x + 2•5^x+1. Choices: A) x B) x + 1 C) 2x D) 2x + 2 Please show solution:)

    asked on October 3, 2017
  57. Math

    Determine the number of factors of 5^x + 2•5^x+1. Choices: A) x B) x + 1 C) 2x D) 2x + 2 Please show solution:)

    asked on October 3, 2017
  58. math

    Find the 6th term in the expansion (x^2 - 1/x)^25 It is a Binomial Theorem problem and I am extremely confused. Please and thank you!

    asked on June 13, 2017
  59. Surface area of threaded hollow tube

    I have a question for calculating the surface area of a threaded cylinder,there are ten about 19 little threads in one inch, the rod is about 6 inches, the outer diameter is about 0.6 in and the inner diameter is 0.02. Each thread is 0.014 thick if that

    asked on May 24, 2017
  60. biology

    In order to maintain homeostasis, human cells must have a higher concentration of sodium ions outside the cell than inside the cell. In addition, the concentration of potassium ions must be higher inside the cell than outside the cell. Which of the

    asked on April 14, 2017
  61. English

    "The sun was shining on the sea, Shining with all his might: He did his very best to make The billows smooth and bright — And this was odd because it was The middle of the night. The moon was shining sulkily, Because she thought the sun Had got no

    asked on March 7, 2017
  62. Math geometry

    1) The base angles of an isosceles triangle are (50-x)^6 and (30x-12)^6 what is the vertex angle? 2) The area of a trapezoid is 52cm^2 if it's bases are 8 cm apart find the sum of their heights 3) What is the area of a circle inscribed inside an

    asked on February 27, 2017
  63. Math

    How many positive integers, not having the digit 1, can be formed if the product of all its digits is 33750. With solution pls:)

    asked on February 7, 2017
  64. Math

    K: 1) simplify: 1 - 1/2 + 1/4 - 1/8 + 1/16 - 1/32 2) Simplify: (1/2 - 1) - (1/3 - 1) + (1/4 -1) 3) In the proportion x^2 : 27 = 9 : x^3, what is x? 4) Between what two consecutive integers does cube root of -100 lie? 5) What is the area of a rectangle

    asked on February 5, 2017
  65. math

    Part of the road is to be on a parabolic curve given by a function of the form y = ax2 + bx + c where x and y are local co-ordinates. The road alignment must pass through the following 3 points:- x = 150m y = 190.650m x = 300m y = 611.450m x = 450m y =

    asked on December 16, 2016
  66. American Government

    I need help on my American Government quiz.. Not looking for answers but for someone to see if mine are right, and if not, to help me out. Thanks! 1. When categorizing the Executive Offices of the President, what can you assume when noting the number of

    asked on November 14, 2016
  67. Math

    Key:8 | 3= 8.3 what does 7|2 mean in the same stem and leaf plot

    asked on November 10, 2016
  68. Pre cal

    Determine all x-intercepts, vertical asymptotes, horizontal asymptotes, and removable discontinuities of f (x)=(x^2-x-6)/(x^3-4x).

    asked on November 5, 2016
  69. biology

    If the first child of a couple was without dimples, an recessive trait, what is the chance that the second child will be born without dimples? A) 100% B) 25% C) 50% D) Cannot be determined from the phenotype of the child

    asked on November 4, 2016
  70. math

    Calculate lim┬(n→∞)⁡〖(√((n^2+n))〗-n) justify your answer.

    asked on November 3, 2016
  71. math

    If lim┬(n→∞)⁡〖(x_n-x)/(x_n+x)〗=0, prove that lim┬(n→∞)⁡〖x_n 〗=x.

    asked on November 3, 2016
  72. advanced math

    A ladder is placed 4 ft from the side of a building. The top of the ladder must be 13 ft off the ground. What is the shortest ladder that will do the job? 4^2 + 13^2 = x^2 16+169=185^ =34,225

    asked on October 23, 2016
  73. physics

    some rocks melt at 1800farenheit. what is the temperature in the celsius scale ?

    asked on September 27, 2016
  74. physics

    The normal temperature of the human body is 37Celsius. a baby temperature is 98farenheit. DOes the baby a fever? Why?

    asked on September 27, 2016
  75. physics

    a 15kg rock falls from the top of a building 8.0 high. Find its PE and KE a.when at rest at the top of the building b. halfway down the ground c. when it reaches the ground d.speed when it reaches the ground

    asked on September 26, 2016
  76. physics

    a man pushes a lawnmower 50ft in 5s by exerting a force of 30lb at an angle of 53degrees with the horizon. find the work done and the average power expended in horsepower. Answer Please need help

    asked on September 26, 2016
  77. Absolute Inequalities

    4-|2x-3|

    asked on September 25, 2016
  78. Trig

    Can someone check my answers? Find # of triangles possible:

    asked on September 21, 2016
  79. Math

    Using numbers 2,3,5,10, 24 make the number 120

    asked on August 30, 2016
  80. science

    how are cohesion and adhesion properties of water linked to photosynthesis?

    asked on August 8, 2016
  81. algebra

    . On the reality TV show Last Man Standing, a package is thrown from a plane to the ocean below. The contestants must swim to the package to receive the “free pass” located inside the package. The path that the package follows can be modelled by the

    asked on July 11, 2016
  82. math

    Find the point in the xy plane which is equidistant from (1,1), (7,1), and (1,9). Please and thanks.

    asked on May 7, 2016
  83. physics

    For the next part, you will need to know that the position d of an object attached to a spring that oscillates with period T=1.0s is a sinusoidal function of time: d=kcos(2πt)d=kcos(2πt) for some constant k. Assume that the initial position of the object

    asked on March 30, 2016
  84. Math

    Find the least positive integer that leaves remainders of 1, 2 and 3 when divided by 3, 5 and 7 respectively.

    asked on March 19, 2016
  85. Math

    A game consists of drawing a number from 1-20. A player wins if the number drawn is either a prime number or a perfect square. What is the probability of winning the game?

    asked on March 19, 2016
  86. math

    A 4cm x 5cm x 7cm rectangular prism is painted on all faces. If the prism is cut into 1cm x 1cm x 1cm cubes, how many cubes do not have paint on any of its sides?

    asked on March 17, 2016
  87. science computer

    Write a program to read the names and age of 10 people and print the name of the oldest person.assume that there are no person of the same age.data is supplied in the following form:name,age,name,age

    asked on March 14, 2016
  88. esl

    is the statement, 'the blueberries tasted delicious.' a passive statement

    asked on March 9, 2016
  89. Math

    James and his friends rolled two fair number cubes 500 times and recorded the sum of the numbers shown on the cubes each time.On 42 of the trials the sum was 10.Which of these is most likely the probability that the sum of the numbers shown on the cubes is

    asked on March 8, 2016
  90. Probability

    Makoto and his friends rolled two fair number cubes 500 times and recorded the sum of the numbers shown on the cubes each time. On 42 of the trials the sum was 10. What will be the probability that the sum of the numbers shown on the cubes is 10 when two

    asked on March 7, 2016
  91. physics

    A long straight horizontal wire carries a current I = 4.80 A to the left. A positive 1.00 C charge moves to the right at a distance 5.00 m above the wire at constant speed v = 4500 m/s . What is the magnitude B of the magnetic field at the location of the

    asked on March 4, 2016
  92. math

    the high temp today was 62 degrees. when nighttime comes, the temp will drop 40 degrees. by 4 am the temp will drop an additional 40 degrees. what is the temp at 4 am?

    asked on February 26, 2016
  93. Math

    If m< 1=53 , what is m

    asked on February 25, 2016
  94. Physics

    Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 2.50 m. Two of the spheres have a mass of 4.40 kg each. The third sphere (mass unknown) is released from rest. Considering only the

    asked on February 23, 2016
  95. bio

    How many grams of MgCl2 do you need to make 2 L of a 0.2 M solution?

    asked on February 8, 2016
  96. Spanish

    What's the difference between "mensajero" and "repartidor"?

    asked on January 20, 2016
  97. math

    During a triathlon, Sharon swims 1/4 of the total route and cycles 3/5 of the remaining route. She runs the rest of the route. If she runs 3,600 meters, find the total distance if the route

    asked on January 14, 2016
  98. chemistry

    how many liters (at STP) of chlorine gas are required to produce .050L of hydrogen chloride gas?

    asked on January 12, 2016
  99. physics

    A particle of mass m = 0.3 kg is acted upon by a force so that its position vector, r(t)=2.0t^2(i)- 5.0t^2 (j) +t^2 (k) where t is in s. What is the (instantaneous) power delivered by this force to the particle at time t = 2.0s?

    asked on December 10, 2015
  100. Geometry

    To repair a roof that is 4 meters high, Mr. Russo leans a 5-meter ladder against the side of the building. To reach the roof, how far away from the building should he place the base of the ladder?

    asked on December 10, 2015

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