1. Math

    The diagram shows a solid metal cylinder. The cylinder has base radius 2x and height 9x. E cylinder is melted down and made into a sphere of radius r. Find the expression for r in terms of x.

    asked by Eleanor on November 17, 2012
  2. Math

    The volume of a cylinder is given by formula V= pi(3.14) r^2h where r is base radius and h is height a) the height of a cylinder of radius 5cm and volume 500. Cm^3 B) radius of base of a cylinder of volume 300 cm^3 and height 10 cm Our teacher didn't

    asked by Jim on March 18, 2013
  3. Math: Geometry

    The circumference of the base of a cylinder is 16 cm. The height of the cylinder is 10cm. a. What is the surface area of the cylinder? b. What is the volume of the cylinder? Need help on this one. I have the formula but I'm a little confused because I

    asked by Marcus on February 21, 2008
  4. Geometry

    What's the lateral area of a right cylinder if the radius of the base is 12 mm and the altitude of the cylinder is 5 times the base radius?

    asked by Bill on December 29, 2016
  5. math

    A right circular cylinder is to be inscribed in a sphere of given radius. Find the ratio of the height to the base radius of the cylinder having the largest lateral area.

    asked by Jus on January 11, 2014
  6. Remington

    The radius of the base of a cylinder is 4.00 in. The height of the cylinder is 12.00 in. Find the surface area of the cylinder using 3.14 as a value for pi. Round to the nearest hundredth.

    asked by Anonymous on January 4, 2016
  7. calculus

    The radius of the base of a right circular cylinder is r com and the height is 2r cm. Find the rate at which the surface area of the cylinder is increasing when the radius is 5 cm and the volume is increasing at 5pi cm/sec. Thank you!

    asked by Krystal on May 6, 2012
  8. Math

    A metal solid cylinder of radius 6 cm and length 12 cm is ,melted and recast into another solid cylinder of length 3 cm. A. Find the base radius of the new cylinder. B. Find the change in total surface area in terms of 3.14.

    asked by Twinkle on November 16, 2015
  9. Calculus

    A cylinder is inscribed in a right circular cone of height 5.5 and radius (at the base) equal to 2 . A) What are the dimensions of such a cylinder which has maximum volume? B) What is the radius? C) What is the height?

    asked by Michaela on April 27, 2013
  10. Calculus

    A cylinder is inscribed in a right circular cone of height 8 and radius (at the base) equal to 2. What are the dimensions of such a cylinder which has maximum volume? Radius? Height?

    asked by Z32 on June 22, 2009
  11. Math

    A cylinder is inscribed in a right circular cone of height 8 and radius (at the base) equal to 2.5. What are the dimensions of such a cylinder which has maximum volume? What is the radius, and height?

    asked by mike on July 20, 2011
  12. geometry

    a circular cylinder has a base with a radius of 7.5 cm. and a height of 12 cm. a rectangular prism has a square base and height of 8.0 cm. if the cylinder and the prism have equal volumes, what is the length of the base of the prism to the nearest tenth?

    asked by Andrea on May 29, 2012
  13. math!

    A cylinder is inscribed in a right circular cone of height 8 and radius (at the base) equal to 5. What are the radius and height of such a cylinder which has maximum volume?

    asked by Anonymous on November 4, 2007
  14. math

    This is the Crailsheim water tower in Baden-Württemberg, Germany. Its construction was completed in 1912. The base of the tower is a graduated cylinder about 19.2 m high with a diameter of 11.5 m at the base and 8.1 m at the top. a)The spherical tank

    asked by david on October 10, 2012
  15. Math

    A hemisphere of radius 7 sits on a horizontal plane. A cylinder stands with its axis vertical, the center of its base at the center of the sphere, and its top circular rim touching the hemisphere. Find the radius and height of the cylinder of maximum

    asked by John on March 22, 2012
  16. Math - Alg

    1. The volume V of a right circular cylinder is given as V = pir^2h, where r is the radius of the base and h is the height of the cylinder. a. Express the height of the cylinder in terms of iuts volume and radius of the base. b. Translate the equation

    asked by Marie Pierre on November 17, 2013
  17. geometry

    how do you calculate the volume of a cylinder with two different sized bases? Radius of top base: 12cm, Radius of bottom base: 18cm, height: 8 units. How do you do this? i tried averaging them but it didn't give the correct answer... should be about 5730.3

    asked by Anonymous on May 3, 2011
  18. geomtry

    The radius of the base of a cylinder is 4x cm is 27 cm and its height is 33 cm. Find the surface area of the cylinder in terms of 3.14

    asked by Anonymous on May 23, 2011
  19. Algebra

    The volume of a right circular cylinder (think of a pop can) is jointly proportional to the square of the radius of the circular base and to the height. For example, when the height is 10.62 cm and the radius is 3 cm, then the volume is 300 cm3. Find the

    asked by Brad on February 20, 2016
  20. math

    Inside a long empty cylinder with radius R = 25 cm is put a long solid cylinder with radius r = 10 cm such that the bases of the two cylinders are attached. Then water is poured in the remaining empty region of the first cylinder until the height of the

    asked by emy on February 22, 2015
  21. Math

    What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

    asked by lou on January 17, 2011
  22. Math

    What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

    asked by anthony on January 17, 2011
  23. Math

    What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

    asked by Randy on January 18, 2011
  24. Math

    What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

    asked by steve on January 18, 2011
  25. Geometry

    A cone has diameter 12 and height 9. A cylinder is placed inside the cone so the base of the cylinder is concentric with the base of the cone and the upper base of the cylinder is contained in the surface of the cone. If the volume of the cone is nine

    asked by Henry on May 9, 2017
  26. Geometry

    A cone has diameter 12 and height 9. A cylinder is placed inside the cone so the base of the cylinder is concentric with the base of the cone and the upper base of the cylinder is contained in the surface of the cone. If the volume of the cone is nine

    asked by Help Please on May 9, 2017
  27. math

    If you are finding the volume of a cylinder, but the cylinder has a base instead of a diameter or radius... what would you do?

    asked by ella on April 29, 2009
  28. Math - Optomization

    A cylinder is inscribed in a right circular cone of height 6.5 and radius (at the base) equal to 5.5. What are the dimensions of such a cylinder which has maximum volume?

    asked by Anonymous on March 7, 2017
  29. Math: Calculus

    A cylinder is inscribed in a right circular cone of height 3.5 and radius (at the base) equal to 7. What are the dimensions of such a cylinder which has maximum volume?

    asked by REALLY NEED HELP!!!! on October 29, 2010
  30. Calculus

    A right circular cylinder is inscribed in a cone with height h and base radius r. Find the largest possible surface area of such a cylinder.

    asked by Anonymous on December 15, 2008
  31. Calculus

    A cylinder is inscribed in a right circular cone of height 5.5 and radius (at the base) equal to 7. What are the dimensions of such a cylinder which has maximum volume?

    asked by Anonymous on October 28, 2011
  32. maths

    the ratio between the radius of the base and height of a cylinder is 2:3.if its volume is 1617.find the total surface area of cylinder

    asked by priya on March 8, 2016
  33. Business Calculus

    A cylinder is inscribed in a right circular cone of height 8 and radius (at the base) equal to 8. What are the dimensions of such a cylinder which has maximum volume?

    asked by Daniela Davila on May 1, 2008
  34. Calculus

    A cylinder is inscribed in a right circular cone of height 6.5 and radius (at the base) equal to 6. What are the dimensions of such a cylinder which has maximum volume?

    asked by Shannon on May 2, 2013
  35. Math

    a cylinder of wooden block has base radius 'r' cm height 'h' cm and a total surface area of 32pi cm^2 1)show that r^2+hr=16 2)given that its height is 4cm more than its base radius, find the value of 'r' and of 'h'

    asked by kaelyn on January 9, 2016
  36. math

    A container in the shape of a right circular cylinder with no top has surface area 3*pi (m2). What height h and base radius r will maximize the volume of the cylinder ?

    asked by febie on April 9, 2012
  37. Mat 116/algebra

    A cylinder has a radius of 5 in. If the volume of the cylinder is 250 ¦Ðr¡¼in¡½^3, what is the height of the cylinder? Volume cylinder is AreaBase*height where area of the base is PI*r^2 Volume=PI*r^2 * h solve for h.

    asked by Dee on May 13, 2007
  38. Calc

    A hemisphere of radius 5 sits on a horizontal plane. A cylinder stands with its axis vertical, the center of its base at the center of the sphere, and its top circular rim touching the hemisphere. Find the radius and height of the cylinder of maximum

    asked by Pierre on October 28, 2010
  39. calculus

    Find the maximum volume of right circular cylinder that can be inscribed in a cone of altitude 12 cm and base radius 4 cm, if the axes of the cylinder and con coincide.

    asked by Anh on December 9, 2011
  40. Math

    Can someone please help me with my math homework problem? My mom tried but she doesn't understand it. What is the surface area of a right circular cylinder with base circle of radius of 5m and height of the cylinder 10m?

    asked by Maggie on January 18, 2011
  41. math

    A cylinder of radius 14 cm contains water. A metal solid cone of base radius 7 cm and height 18cm is submerged into the water. Find the change in height of the water level in the cylinder

    asked by kudu on February 7, 2015
  42. math

    a cylinder of radius 14 cm contains water. a metal solid cone of base radius 7 cm and height 18 cm is submerged into water.find the change in height of the water level in cylinder.

    asked by shirleen on April 8, 2019
  43. Maths

    A metallic right circular cylinder is15cm high and the diameter of the base is 14cm it is melted and recasted into another cylinder with radius 4cm find its height and curved surface area

    asked by Dependra on November 3, 2016
  44. physics

    an aluminum cylinder, of height h=2ocm and of radius r=1ocm, rests with its base on a horizontal table. Density of aluminum P=2700kg/m^3 a-calculate the weight of the cylinder take g=10N/kg b-what is the value of the force exerted by the table on the

    asked by julia on January 20, 2016
  45. Algebra

    This diagram shows a solid metal cylinder. The cylinder hasbase radius 2x and height 9x. The cylinder is melted down and made into a sphere of radius r Find an expression for in terms of x

    asked by Alex on April 23, 2018
  46. calculus

    A potter forms a piece of clay into a cylinder. As he rolls it, the length,L, of the cylinder increases and the radius, r, decreases. If the length of the cylinder is increasing at .1 cm per second, find the rate at which the radius is changing when the

    asked by mandy on February 3, 2010
  47. MATH QUIZ PLS HELP!!!

    1.Find the lateral area of a cone with a radius of 7 ft. and a slant height of 13 ft. Use 3.14 for ©£ and round to the nearest tenth. 439.6 ft^2 324.5 ft^2 571.5 ft^2 285.7 ft^2*** 2.Find the surface area of a square pyramid with a base length of 24 cm

    asked by TTR+S<3 on March 19, 2014
  48. maths

    Two solid right circular cones and radii r1 and r2 and have the same height h, they are method and react into a cylinder of same height. Show that the radius of the base of cylinder is √[r1]°2+[r2]°2^3.

    asked by akshaysaini on January 13, 2017
  49. Math

    Could someone please help me? calculate the volume in cu. ft of a section of drainage pipe that measures 8 feet in lenght and 24 inches in diameter (all measurements has to be in the same units and be careful that you distinguish between diameter and area

    asked by Bridget on February 22, 2007
  50. Math - Please Check My Answer - Probably Last One!

    Please help me with the following: The volume of a cylinder is found using the formula V=πr^2h,where r is the radius of the base and h is the height. The volume of a rectangular prism of the same width (2r) and height h, as the cylinder, is found by

    asked by Brady on October 2, 2014
  51. physics

    Consider two solid uniform cylinders that have the same mass and length, but different radii: the radius of cylinder A is much smaller than the radius of cylinder B. Rolling down the same incline, which one of the two cylinders will reach the bottom first?

    asked by rosa on November 18, 2013
  52. calc

    When the height of a cylinder is 12 cm and the radius is 4 cm, the circumference of the cylinder is increasing at a rate of pie/4 cm/m in, and the height of the cylinder is increasing four times faster than the radius. How fast is the volume of the

    asked by marrisa smith on November 30, 2016
  53. geometry

    a cylinder is inscribed in a rectangular solid with a base length that is 10 inches and width that is 10 inches and a height of 16 inches. what is the radius of the cylinder?

    asked by miks on December 4, 2012
  54. Algebra 1

    A cylinder has a radius of 5 in. If the volme of the cylinder is 250p in.3, what is the height of the cylinder? [Hint: The volume of a cylinder is given by V = pr2h.]

    asked by help me please(c.c) on September 18, 2007
  55. Algebra 1

    A cylinder has a radius of 5 in. If the volme of the cylinder is 250p in.3, what is the height of the cylinder? [Hint: The volume of a cylinder is given by V = pr2h.]

    asked by Brenna on September 18, 2007
  56. maths

    A cylinder is 8cm high and its base diameter is 4cm.The height of a similar cylinder is 12cm. The height of a similar cylinder is 12cm.find the diamter of the base of the larger cylinder

    asked by Riliwan on November 22, 2016
  57. Calculus

    Find the radius, volume, and hieght of the right- circlar cylindar that can be inscribed in a right- circular cone with a radius of 6 inches and a hieght of 10 inches. There are an infinite number of solutions to this. Did you mean the right cylinder with

    asked by Tyler on November 28, 2006
  58. 11th Grade-Calc

    cylindrical can is to be made from a rectangular piece of aluminum that is 25 inches long and 10inches high by rolling the metal horizontally. Determine the circumference of the cylinder, the radius of the cylinder, the height of the cylinder, and the

    asked by Kelley on November 8, 2008
  59. Calc

    cylindrical can is to be made from a rectangular piece of aluminum that is 25 inches long and 10inches high by rolling the metal horizontally. Determine the circumference of the cylinder, the radius of the cylinder, the height of the cylinder, and the

    asked by Kelley on November 8, 2008
  60. physics (SOS!)

    a cylinder that is 20 cm tall is filled with water. If a hole is made in the side of the cylinder, 5cm below the top level, how far from the base of the cylinder will the stream land? Assume that the cylinder is large enough so that the level of the water

    asked by zoe on December 2, 2012
  61. Math

    A cylinder cop has a circular base of radius 7cm & height of 10cm taking 22/7(a)calculate it curved surface(b)d area of it circular base

    asked by patience daniel on May 6, 2015
  62. 8th grade

    2 cylinders are proportional the smaller cylinder has a radius of 4 centimeters, which is half as large as the radius of the larger cylinder. the volume of smaller cylinder =250 cubic cemtimeters. what is the volume of the larger cylinder?

    asked by brianna on December 14, 2008
  63. Math

    Suppose Cylinder A has the same height but twice the radius of Cylinder B. What is the ratio of the volume of Cylinder B to Cylinder A?

    asked by Helen on March 30, 2016
  64. physics

    A string is wrapped around a uniform solid cylinder of radius r. The cylinder can rotate freely about its axis. The loose end of the string is attached to a block. The block and cylinder each have mass m. Note that the positive y direction is downward and

    asked by Gabe on January 22, 2010
  65. math

    2 cylinders are proportional. The smaller cylinder has a radius of 4 cm. which is half as large as the radius of the larger cylinder.The volume of the smaller cylinder is 250 cubic cm. What is the approximate volume of the larger cylinder?

    asked by brianna on December 14, 2008
  66. 4 Calculus Related-Rates Problems

    1. How fast does the radius of a spherical soap bubble change when you blow air into it at the rate of 15 cubic centimeters per second? Our known rate is dV/dt, the change in volume with respect to time, which is 15 cubic centimeters per second. The rate

    asked by Angela on January 22, 2018
  67. 8th grade math

    A cylinder has a cone on top. The base of the cone is congruent to the base of the cylinder. The diameter of the base is 16ft. The height of the cylinder is 16ft. and the height of the cone is 9th. What is the volumeof the entire figure?

    asked by Piggy on April 10, 2012
  68. Chemistry (Math)

    A chemist pours 200 grams of a liquid (density = 2.5 gm/mL) into a cube beaker with 5 cm edges and a graduated cylinder with a base radius of 5 cm and a height of 5 cm. What is fraction of the liquid that needs to be put in the graduated cylinder such that

    asked by Sally on February 27, 2011
  69. Chemistry (Math)

    A chemist pours 200 grams of a liquid (density = 2.5 gm/mL) into a cube beaker with 5 cm edges and a graduated cylinder with a base radius of 5 cm and a height of 5 cm. What is fraction of the liquid that needs to be put in the graduated cylinder such that

    asked by Sally on February 27, 2011
  70. Add Math(rate of change)

    The volume of a cylinder increases at a rate of 324cm cube per second. The height, h cm of the cylinder is twice the radius, r cm. Find the rate of change in radius when the radius is 6cm.(use 3over2 pai)

    asked by Michele on January 2, 2017
  71. calculus

    A potter forms a piece of clay into a right circular cylinder. As she rolls it, the height h of the cylinder increases and the radius r decreases. Assume that no clay is lost in the process. Suppose the height of the cylinder is increasing by 0.5

    asked by mike on March 31, 2013
  72. Calculus

    A potter forms a piece of clay into a right circular cylinder. As she rolls it, the height h of the cylinder increases and the radius r decreases. Assume that no clay is lost in the process. Suppose the height of the cylinder is increasing by 0.4

    asked by Cookie Monster on October 20, 2014
  73. 4 CALCULUS study problem

    1. How fast does the radius of a spherical soap bubble change when you blow air into it at the rate of 15 cubic centimeters per second? Our known rate is dV/dt, the change in volume with respect to time, which is 15 cubic centimeters per second. The rate

    asked by Samantha on January 9, 2014
  74. geometry

    I need to find the area of a base of a cylinder. The height is 9 and the radius is 3.

    asked by Hannah on May 26, 2013
  75. Math 107

    A right circular cylinder with height 25 and base radius 8 solve for A=

    asked by Lonzie on October 30, 2016
  76. Math

    A cylinder is inscribed in a cone as shown in the diagram below. The cone has a height of 8cm and a fixed radius of R cm. The cylinder has a radius of x cm and a height of h cm. Show that the volume of the cylinder is maximised when x=kR, where k is a

    asked by Isabel on November 29, 2016
  77. Calculus

    1) If y = 2x3 - 4x and dx, dt equals 4 , find dy/ dt when x = 1. 2) The area A = πr^2 of a circular water ripple changes with the radius. At what rate does the area change with respect to the radius when r = 4ft? 3) A rectangular box has a square base

    asked by Deondre on October 2, 2017
  78. Math

    Sarah needs to cover the lateral area and the base on top of the cylinder. (cylinder 6 in on the base 12 in in length) About how many square inches of paper will Sara need? 282 in. 2 254 in. 2 679 in. 2 565 in. 2

    asked by Alina on June 4, 2015
  79. physics

    A solid steel cylinder is standing (on one of its ends) vertically on the floor. The length of the cylinder is 3.4 m and its radius is 58 cm. When an object is placed on top of the cylinder, the cylinder compresses by an amount of 5.9 10-7 m. What is the

    asked by Dee on April 3, 2013
  80. math

    A cylinder has a circular base with a diameter of 12 ft. The height of the cylinder is 4 ft. What is the volume of the cylinder rounded to the nearest whole number? Use 3.14 for pi.

    asked by TheMainKain on March 12, 2019
  81. pre alebra

    Thye base of a cylinder has an area of 153.86cm. the height of the cylinder is 5cm what is the volume of the cylinder

    asked by Brianna on March 30, 2010
  82. mat 116/algebra

    A cylinder has a radius of 5 in. If the volume of the cylinder is 250Ĉ in.3, what is the height of the cylinder? [Hint: The volume of a cylinder is given by V = Ĉr2h.] I think I wrote it wrong the first time. The volume of a cylinder is pi r^2 h.

    asked by Dee on May 13, 2007
  83. calculus

    Find the radius and hight of cylinder with voume 64π and radius r between 1 and 5 that has smallest possible surface area. A cylinder of radius r and hight aah 2π^2+2π r h and π r ^(2) h.

    asked by saud on November 21, 2011
  84. MATH

    A cylinder has a circular base with a diameter of 12 ft. The height of the cylinder is 4 ft. What is the volume of the cylinder rounded to the nearest whole number? Use 3.14 for pi. A. 452in2 B. 1,809ft2 C. 151ft2 D. 603ft2

    asked by jake on March 3, 2019
  85. math

    The height of a cylinder is three times its radius. Find a function that models the volume V of the cylinder in terms of its radius r.

    asked by monic on October 5, 2012
  86. Geometry

    Find the radius and diameter of the base of a cylinder if the surface area is and the height is 17.

    asked by Need Help on May 4, 2011
  87. Math 117

    1.) A rectangular solid and a circular cylinder have the same volume and the same height. The base of the rectangular solid is a square. Which (if any) of the following statements are true? (i) The rectangular solid and the cylinder have the same base

    asked by Zack on August 20, 2009
  88. Maths

    A cylinder lenght 13cm and radius 5cm is made of cardboard .use the value of 3.1 py at (a) a closed cylinder (b) a cylinder open at one side

    asked by Bright on June 1, 2015
  89. geometry

    The volume of a cylinder is 980 in.. The height of the cylinder is 20 in. What is the radius of the cylinder? Express your answer to the nearest hundredth.

    asked by Elizebeth taylor on October 22, 2014
  90. math

    Tommy has right rectangular prism with base length 5 and a cylinder with radius 2.5. If both objects have equal surface areas, what is : a)the height of the right rectangular prism? b) the height of the cylinder? Use Pi =3.14

    asked by Alex on April 25, 2012
  91. math

    surface area of a rightcircular cylinder. The area of a right circular cylinder is given by the polynomial 2pierh^2 where h is the height and r is the radius of the base. Suppose that a beverage can has a height of 6.2 inches and a radius of 1.3 inches.

    asked by pam on March 22, 2013
  92. pre algebra

    A cylinder has a circumference of 16pi inches and its height is half the radius of the cylinder? What is the total surface area of the cylinder? Give answer in terms of pi. do not know how to do this....please help

    asked by taylor on September 28, 2014
  93. geometry

    The volume of a cylinder is 980 in.4072-07-02-02-00_files/i0220001.jpg. The height of the cylinder is 20 in. What is the radius of the cylinder? Express your answer to the nearest hundredth.

    asked by Corey on July 13, 2014
  94. Algebra 1

    The radius of a cylinder is 3x-2cm. The height of the cylinder is x+3cm. What is the surface area of the cylinder?

    asked by Steve on January 30, 2015
  95. Math

    A sphere and a right cylinder have the same radius and volume. The cylinder has a height of 3 inches. Find the radius.

    asked by Anne on February 21, 2019
  96. Pre-Algebra

    A sphere and a right cylinder have the same radius and volume. the cylinder has a height of 3 inches find the radius.

    asked by Marie on February 27, 2017
  97. math

    A solid sphere of radius Xcm is placed in a cylinder of radius 2Xcm and height 2Xcm. The cylinder is then filled with water to the brim and the solid gently withdrawn. Find d volume of d water in d cylinder in cm3

    asked by benjieo on May 27, 2014
  98. maths

    A hallow sphere has a volume of xcm^3 and a surface area of ycm^2 if the value of the diameter of the sphere is the radius of the area of a semicircle.what is the radius of a cylinder(P) if the area of the circle is equal to the area of the cylinder when

    asked by anthony on July 30, 2015
  99. chemistry

    I need to find the radius of a cylinder with only the following info: Cylinder height=125um There is 1 C atom/0.01848 nm^2 There are 5.75x10^10 C atoms on the surface of cylinder Use quadratic formula to solve

    asked by kelly on February 26, 2013
  100. Physics

    A solid cylinder of mass 20 kg rotates about its axis with angular speed of 100 rad/sec. the radius of the cylinder is 0.25m. what is the kinetic energy of the cylinder?

    asked by Devnet on December 5, 2014