joel

Newest questions and responses by joel
  1. Chemistry

    For the following reaction,determine the amount of agcl formed (collected in laboratory) when 10.24 g of kcl react with excess agno3 to produce agcl and kno3 with a 77.24% yield.

    asked on September 29, 2018
  2. Math

    A water tank can hold 56 5/7 litres of water. How much water is contained when it is 2/5 full?

    asked on July 26, 2018
  3. Math

    A water tank can hold 56 5/7 litres of water. How much water is contained in the tank when it is 2/5 full?

    asked on July 26, 2018
  4. Chemistry

    × a 25cm³ aliquot of ammonium iron(ii) tetraoxomanganate(vii) containing 32.9g of its salt in 250cm³ solution, needed 25cm³ of potassium tetraoxomanganate(vii) solution for a colour change to occur. what is the concentration of the potassium

    asked on July 19, 2018
  5. chemistry

    × a 25cm³ aliquot of ammonium iron(ii) tetraoxomanganate(vii) containing 32.9g of its salt in 250cm³ solution, needed 25cm³ of potassium tetraoxomanganate(vii) solution for a colour change to occur. what is the concentration of the potassium

    asked on July 19, 2018
  6. math

    prove dat Cos(18°) = 1/4√10+2√5

    asked on May 8, 2018
  7. Math

    A doctor orders a dosage of 5 ml of medicine every 4 hours for 8 days how many fluid ounces of medicine should be purchased Help sole

    asked on April 27, 2018
  8. Math

    Complete the table Yards is blank Feet= 29 Inches= 348 Help find yards Help solve

    asked on April 23, 2018
  9. Math

    Python length complete chart Yards_____ feet 29 inches______ Please help solve

    asked on April 23, 2018
  10. math

    March 1- $550 rent (check) March 2- $286 tuition (check) March 3- $200 paycheck March 4- 275 bookstore check March 5- $60 withdrawn from ATM March 6- $40 food (debit) March 7- $45 date desert March 8- N/A March 9- $40 gas March 10 - $200 paycheck March 11

    asked on April 19, 2018
  11. math

    Week No 1 2 3 4 5 6 7 Weight change -2 -2 3 -2 -2 3 -2 Write her weight losses and gains using multiplications. Please help solve

    asked on April 19, 2018
  12. math

    . Bonita uses her debit card to withdraw $40 from her savings account every week for 7 weeks. What is the change in her account balance at the end of 7 weeks? help solve

    asked on April 19, 2018
  13. math

    A cold front moves through your hometown in January, dropping the temperature an average of 3 F per day for 5 days. Write an expression that uses multiplication to describe the changes in temperature from the start to the end. Help solve

    asked on April 19, 2018
  14. Math

    The temperature in Minot, North Dakota registered 18 degrees F. The wind chill factor made it feel negative 10 degrees. What is the difference between the actual temperature and the perceived temperature? Help solve

    asked on April 19, 2018
  15. Math

    the question is to "rotate the line the given number of degrees a about the x-intercept and (b) about the y-intercept. Write the equation of each image" and the problem is y=2x+2 ; 90 degrees and i dont know what to do

    asked on April 3, 2018
  16. geometry sem 2 APEX

    Question 1 of 10 Multiple Choice: Please select the best answer and click "submit." A closet contains 8 pairs of pants, 10 shirts, and 4 pairs of shoes. How many leaves on a tree diagram would represent all possible combinations of outfits? A. 80 B. 22 C.

    asked on March 14, 2018
  17. geometry

    What is the ratio for the surface areas of the cones shown below, given that they are similar and that the ratio of their radii and altitudes is 4:3?

    asked on March 6, 2018
  18. math

    How many centavos are equal to P2.50?

    asked on November 24, 2017
  19. math

    I am a 2-digit number. My ones is 3 more than my tens and the sum of my digits is 11. What number am I ?

    asked on November 24, 2017
  20. math

    .) Dino gathered 72 eggs from one poultry house and 48 from another. How many more eggs did he gather from the first house?

    asked on November 24, 2017
  21. math

    I am a 2 digits number. My ones is 3 more than my tens and the sum of my digits is 11. What number am I?

    asked on November 24, 2017
  22. math

    how many centavos are equal to P2.50

    asked on November 24, 2017
  23. math

    how many numbers are greater than 22 but less than 32?

    asked on November 24, 2017
  24. Maths

    Cynthia’s afternoon train normally arrives at her station at 5:30 pm each day, where she is picked up by Alan and driven home. One day she was on an earlier train which arrived at 5 pm, and she decided to walk in the direction Alan was coming from home.

    asked on March 9, 2017
  25. english

    Which of the sentences below is an excerpt taken from "In Another Country" by Ernest Hemingway is an example of irony? A. My knee did not bend and the leg dropped straight from the knee to the ankle without a calf, and the machine was to bend the knee and

    asked on February 21, 2017
  26. Maths

    If The Roots Of The Equation X^2- bx+c are square root of alpha and square root of beta .show that alpa + beta = b^2- 2c and (alpha)^2 + (beta)^2 = (b^2 -2c - sqrt of 2c)(b^2 - 2c + sqrt of 2c)

    asked on February 8, 2017
  27. Social Studies

    in 3-5 sentences describe the apportionment system for state legislative districts I cant seem to think of any please help

    asked on February 3, 2017
  28. math

    use the method of substitution to solve the following pairs of simultaneous equation. 2m+n=0,m+2n=3

    asked on January 29, 2017
  29. Social Studies

    1. What was the landscape of the country prior to Imperialism? 2. What kind of resources made the country a commodity to the colonizers? 2. Who lived there? What was their daily life like? 4. What kind of leadership and hierarchy did the civilization

    asked on December 15, 2016
  30. math

    c. What do the slope and y-intercept mean in the context of this problem? Hint: What do you pay when you step into the cab?

    asked on December 6, 2016
  31. Math

    Let y=e^(cos^-1x) for modx

    asked on November 30, 2016
  32. Social studies

    why does the cartoon from the bank war 1832 portrat president jackson as a king

    asked on November 22, 2016
  33. Maths

    If X,y,a and b are real numbers and if x+yi = a/b+cosp+isinp , show that (b^2-1)(x^2+y^2)+a^2 =2abx

    asked on October 17, 2016
  34. Math

    Parmjit has 8 base ten blocks. She has at least one of each type of block. The value of her blocks is between 400 and 600. What blocks could she have? Find the possible answers using an organized list.

    asked on October 13, 2016
  35. Math

    Parmjit has 8 base ten blocks. She has at least one of each type of block. The value of her blocks is between 400 and 600. What blocks could she have? Find the possible answers using an organized list.

    asked on October 13, 2016
  36. History

    which represents an aztec adaptation to their environment A. A surplus of farmed crops B.an accurate 365 day calendar C.a system of causeways D.farming in terraces

    asked on September 27, 2016
  37. Maths

    Thnx Reiny & Steve 4 d help rendered in per the past questions. Plse help in this, If the line through the point y=2x+c touches the hyperbola 4(x)^2-6(y)^2=24. Show that c=+-2sqrt5.

    asked on September 25, 2016
  38. maths

    Prove that in any triangle ABC Sin2A+Sin2B+Sin2C/SinA+SinB+SinC=8Sin(A/2)Sin(B/2)Sin(C/2)

    asked on September 24, 2016
  39. maths

    A variable tangent to the ellipse (x/a)^2 +(y/b)^2 meets the parabola y^2=4ax at L and M. Find the locus of the midpoint of LM.

    asked on September 24, 2016
  40. maths

    A Variable Tangent To The Ellipse (x/a)^2 + (y/b)^2 =1 meets the parabola y^2=4ax at L and M. Find the locus of the midpoint of L M

    asked on September 23, 2016
  41. History

    what statement best describes the government relationship with England that was in the middle colonies A. Middle colonies were all established as royal colony B.each have a different system based on the charter agreed upon with the king of England C.The

    asked on September 12, 2016
  42. Physics

    Given Two parallel plate capacitors with a seperation d(metres) in free space connected to a dc supply of volts,v. A dielectric material of thickness b(metres) is inserted between the plates so that a distance (d-b)m remains without dielectric. Show that

    asked on September 7, 2016
  43. Maths

    Prove By induction that sinx + sin3x + sin5x +.... Sin(2n-1) =sin^2(nx)/sin3x

    asked on September 7, 2016
  44. Maths

    Plse Help how do you obtain the maximum value and minimum value of a quadratic equation like for , 1/11+8x-2x^2

    asked on August 12, 2016
  45. Maths

    Prove that 1+cosx+sinx/1-cosx+sinx=cotx

    asked on August 12, 2016
  46. Physics

    Explain Why the pressure of a gas in a nitrogen container falls continuously when the gas is continuously taken away while the pressure of a gas in a chlorine container remains constant until nearly all the gas is withdrawn

    asked on August 11, 2016
  47. Maths

    A right circular cone is circumscribed about a sphere of radius a .If h is the distance from the centre of the sphere to the vertex of the cone. Show that the volume of the cone is 1/3pi a^2(a+h)^2/(h-a). Find the angle of a cone when the volume is minimum

    asked on August 9, 2016
  48. Maths

    Show that the maximum volume of a cylinder of radius r which can be cut centrally from a right solid cone of height h and semi-vertical angle alpha is givenby (4pi/27)h^3tan^2alpha

    asked on August 9, 2016
  49. Maths

    Prove That Sin2A+SIN2B+SIN2C/SINA+SINB+SINC=8SinA/2SINB/2SINC/2

    asked on July 28, 2016
  50. Maths

    Prove That Sin2A+ Sin2B +SIN2C/sinA+SINB+SINC=8sinA/sinB/2COSC/2

    asked on July 28, 2016
  51. Maths

    Prove that cos3x/cosx-cos6x/cos2x=2(cos2x-cos4x)

    asked on July 28, 2016
  52. Maths

    Prove that (1+sinx-cosx/1+sinx+cosx)^2= 1-cosx/1+cosx

    asked on July 27, 2016
  53. Maths

    Solve For X if archtan(x)+archsin(x)=3/4pi

    asked on July 27, 2016
  54. Maths

    Please Help Differentiate Sin sqrt x from first principles

    asked on July 24, 2016
  55. Maths

    If X=loga(n), y=logc(n) where nis not equal to one . Prove that x-y/x+y=logb(c)-logb(a)/logb(c)+logb(a)

    asked on July 23, 2016
  56. Finance

    What is the monthly payment on $8,400 loan at 16.7% APR

    asked on April 8, 2016
  57. COMPUTER

    WHAT IS THE PROGRAMME IN QBASIC THAT ALLOW THE USER TOENTER HIS/HER NAME AND THEN DISPLAY A WELCOME NOTE TO THE NAME.

    asked on February 14, 2016
  58. Math

    The Distributive Property: Find the product mentally. Show the steps you used. 8*34 I know that 8*34=272 but how you do it with Distributive Property? Thanks!

    asked on January 28, 2016
  59. One SS Question!

    What was one event that helped make the US a world power? a. The country experienced the Great Depression. b. The country fought in World War I *** c. The country the Peace of Paris. d. The country fought in the French and Indian War.

    asked on January 26, 2016
  60. Science

    If you burn 16.5 ml of ethyl alcohol, C8 H18, that has a density of 0.789g/ml what mass of co2 is produced? I have no idea where to start.

    asked on January 10, 2016
  61. Science

    Imagine that the label on a sunscreen product reads, “Recommended by nine out of ten doctors.” No other information regarding this claim is provided. Why would a scientist tell a consumer to be wary of this statistical claim? A. Sunscreen products are

    asked on January 6, 2016
  62. math

    if a 3 gram French fry accelerating at 5 meter's per second. what is he fries force?

    asked on October 11, 2015
  63. science

    light that has a frequency of 1.5 x 1015 Hz.

    asked on October 9, 2015
  64. Math

    A bus makes 28 stops every 2 hours. How many stops does it make in 3 hours? in 4 hours? How do you get 42 stops; 56 stops? Thanks!

    asked on September 10, 2015
  65. alegebra

    A sequence has the following pattern 3/2,4,15/2,12,35/2,24.Starting n=1 find the general term for the sequence?

    asked on April 11, 2015
  66. chem

    Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.10 of sodium carbonate is mixed with one containing 4.43 of silver nitrate. How many grams of silver nitrate are

    asked on February 23, 2015
  67. math

    If Matt filled a 2 1/5 cup container, how many 1/5 cups would he need to use??

    asked on February 12, 2015
  68. Program Designs

    The Daily Gazette accepts classified ads in several categories. For most ads, the newspaper charges 10 cents per word for the first 50 words, and 8 cents per word for every word after that. Design Visual Logic Flowchart for a program that accepts data

    asked on January 31, 2015
  69. Integrals

    Find the Integral values of X and Y satisfying the inequality 3x + 5x ¡Ü 15, given that Y >0, Y < 3 and X > 0

    asked on January 10, 2015
  70. calculus

    Please how do i integrate this = ¡Ò (5 x⁶ + 2/x³ ) ? Thanks

    asked on January 10, 2015
  71. physics

    A locomotive is running at a constant speed of 100 km/ h. The diameter of driving wheels is 1.8 m. The stroke of the piston of the steam engine cylinder of the locomotive is 600 mm. Find the centripetal acceleration of the crank pin relative to the engine

    asked on December 31, 2014
  72. physics

    A flywheel is making 180 r.p.m. and after 20 seconds it is running at 140 r.p.m. How many revolutions will it make, and what time will elapse before it stops, if the retardation is uniform ?

    asked on December 31, 2014
  73. physics

    A cage descends a mine shaft with an acceleration of 0.5 m/s2. After the cage has travelled 25 metres, a stone is dropped from the top of the shaft. Determine : 1. the time taken by the stone to hit the cage, and 2. distance travelled by the cage before

    asked on December 31, 2014
  74. statistics

    find the area under the curve y=3log1.2x between x = 1.2 and x = 3

    asked on December 18, 2014
  75. Physics

    1 Angstrom = how many Coulombs?

    asked on August 29, 2014
  76. Physics

    An infinitely long thin metal strip of width w=12cm carries a current of I=10A that is uniformly distributed across its cross section. What is the magnetic field at point P a distance a=3cm above the center of the strip? I have tried using the integration

    asked on April 4, 2014
  77. CHEMISTRY URGENT!!!!

    An electron transition in a single H-atom from n=3 to n=2 results in the release of a single photon. What is the wavelength of this photon in nanometers? NEED ANSWER CUZ MINE ISNT WORKING

    asked on January 27, 2014
  78. Chemistry, due soon please help

    calculate the mass of 100 ppm of CO2 int the atmosphere if the atmospheres mass is 5.3x10^18 kg

    asked on December 16, 2013
  79. key boarding and word processing

    You want to include a title page for a report you're sending out. How should you format the title on this page?

    asked on December 9, 2013
  80. Algebra 1

    Tell whether each number in the list is a real number, a rational number, an irrational number, an integer, or a whole number. Then order the numbers from least to greatest. Square root of 64, -5, square root of 9, and 2

    asked on September 26, 2013
  81. math

    A stunt motorcyclist makes a jump from one ramp 20 feet off the ground. The jump between ramps can be modeled by y= -1/640x^2 + 1/4x +20 where x is the horizontal distance (in feet) and y is the height above ground (in feet). I think a is 20 feet, but I

    asked on September 24, 2013
  82. math

    The sum of two decimal numbers is 3.9 Their difference is 0.9,and their product is 3.6 What are the two numbers?

    asked on September 24, 2013
  83. MATH

    Give the number whose hundreds place is one-third of the greatest one-digit number, the tens place is twice the hundreds place divided by 2, and the three digits in the thousands period is the product of the digits in the units period.

    asked on June 23, 2013
  84. PreCalc

    If tan theta = 9/5 and cot omega = 9/5 Find the exact value of sin (omega-theta)

    asked on May 8, 2013
  85. Principles of Management

    Question 1 of 20 5.0 Points Which of the following is NOT a benefit of planning? A. Helps you check on your progress B. Helps you think ahead C. Helps you cope with uncertainty D. Helps you compare your results to a standard Reset Selection Question 2 of

    asked on April 22, 2013
  86. Chemistry

    2. In a calorimeter, 40.0g water at room temperature (20.4 C) was mixed with 60.0 g of water that was initially 48.9 C. The resulting mixture reached a maximum temperature of 37.3 C. Calculate each of the following. a) The heat released by the hot water.

    asked on April 16, 2013
  87. Chemistry

    If the temperature of 150.0g of water increased from 23.3C to 44.8C, how much heat was absorbed

    asked on April 9, 2013
  88. Chem

    The specific heat of zinc is 0.096 cal/(g °C). Determine the energy required to raise the temperature of 26.1 g of zinc from room temperature (20.0 °C) to 150 °C.

    asked on April 4, 2013
  89. math (Algebra)

    (c+x)squared ----------------- 2y c= -8 x= 10 y= 6

    asked on April 3, 2013
  90. math problem

    The diameter of a circle is increased by enough to increase the circumference by 20%. By what % is the area of the circle increased ? ( Hint: Try a number like t=5.)

    asked on February 17, 2013
  91. math

    if i have abook of 30 pages and i number each pages, how can i figure the digit number

    asked on February 12, 2013
  92. math

    if i have a book of 30 pages and i want to number each pages what will be the digit for the thirty pages

    asked on February 12, 2013
  93. trig

    A wheelchair ramp has an angle of inclination of 10 degrees and rises to a height of 3ft. Determine the length of the ramp in feet.

    asked on January 22, 2013
  94. trig

    Find the Opposite of the right angle where the angle is 61 degrees and the Adjacent is 10 cm.?

    asked on December 20, 2012
  95. college trig word problem

    A Ferris wheel has a radius of 25 feet.The wheel is rotating at two revolutions per minute.Find the linear speed, in feet per minute, of a seat on this ferris wheel.

    asked on December 15, 2012
  96. Chemistry

    You wish to increase the carbon content of a slab of steel by exposing it to a carburizing atmosphere at elevated temperature. The carbon concentration in the steel before carburization is 379.0 ppm and is initially uniform through the thickness of the

    asked on December 14, 2012
  97. graphing question

    how do i get the slope formula of: (4,-1) and (3,-1)? Then the Point slope form:Slope=4,passes through (1,3)?

    asked on December 5, 2012
  98. math

    3 less than or equal to 4x-3 less than 19?

    asked on December 1, 2012
  99. calculus

    The Horizontal Assymptote for the graph of f(x) = (-6x3 +2x + 5)/(x3-1) is the horizontal line with equation y=___

    asked on November 13, 2012
  100. math

    Line BD bisects

    asked on October 12, 2012

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