Math
posted by MathLover .
The volume of a cylinder is 1256 meters. The height is 13 meters. Diameter is x. What is the diameter?

Math 
MathMate
Volume of cylinder, 1256 m³
= πd²h/4
h=13, π=3.14159, solve for d. 
Math 
Anonymous
Idg how to to do x squared

Math 
MathMate
d² is the same as d*d, or d multiplied by itself.
so
πd²h/4=1256
multiply by 4 on each side,
πd²h = 5024
divide by πh on each side:
d²=5024/(13π)=123
d=√(123)=11 metres.
Respond to this Question
Similar Questions

AP Calculus BC
A cylindrical tank is constructed to have a diameter of 5 meters and a height of 20 meters. Find the error in the volume if: (a) the diameter is exact but the height is 20.1 meters (b) the height is exact, but the diameter is 5.1 meters. 
physical science
A weight attached to a wire is swung in a circular path. Its speed is 12 meters/sec, and it has a centripetal acceleration of 9.0 meters/sec2. Calculate the diameter of the circle. 1.3 meters 2.6 meters 16 meters 32 meters 
Math
A rectangular prism has a length of 100 cm, a height of 10 cm and a width of 5 cm. What is the volume of the rectangular prism? 
Geometry
a cone full of water has been poured intoa cylinder. what is the depth of thewater in the cylinder? 
physics
A hydraulic press has an input cylinder 1 m in diameter and an output cylinder 2 meters in diameter. Assuming 100% efficiency, find the force exerted by the output piston when a force of 10 Newtons is applied to the input piston. pounds … 
Physics
The cubit is an ancient unit of length based on the distance between the elbow and the tip of the middle finger of the measurer. Assume that the distance ranged from 43 to 53 cm, and suppose that ancient drawings indicate that a cylindrical … 
MATH
A tin is a right circular cylinder with a diameter of 6 meters and a height of 10 meters. What is the surface area of this tin, in terms of pi? 
math
Erin is making a pitcher of lemonade. Her pitcher is a cylinder with a diameter of 8.6x10^2 meters and a height of 0.44 meters. What is the approximate total amount of lemonade that will fit in her pitcher? 
Algebra
the base of a cylinder is a right triangle topped by a 60 degrees sector of a circle, as shown. if the dimensions are in meters and the height of the cylinder is 8 meters, what is the volume of the cylinder? 
Geometry
7. What is the surface are of a conical grain storage tank that has a height of 37 meters and a diameter of 16 meters?