Mathneed help fast
posted by Emily .
If the radius of a circle is x/6, what's the diameter and circumference?
Diameter = 2*r
Circumference = 2*pi*r
...or...
Circumference = pi*d
Note: I'm using * to mean multiply.
Can you now determine what you need to know with this information?
Not really. I just need to know how you can take the fraction x/6 and multiply it by two. How do you get an answer of 0.3?
Respond to this Question
Similar Questions

college algebra
The diameter of the Earth is approximately 7,920 miles. Given that the circumference of a circle is pi times its diameter, which statement best describes the length of a trip from Washington to Masdagascar that is approximately 8,600 … 
math
how do you find the diameter of a circle if you don't have the radius? 
math
Okay. So i'm doing this project for my geometry class about different sports, soccer, baseball, basketball, bowling, golf, volleyball and pool. I have to find the surface area, volume, diameter, circumference, and radius of each of … 
Circumference,Radius, Diameter
The circumference of a circle is 12.56 centimeters. What is the approx. measure of the circle's radius? 
Math
Students in Mr.Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? 
Math
Students in Mr. Tandoc's shop class made a circular railroad crossing sign for a school play. The diameter of the sign was about 4 feet. How does the diameter compare to the circumference of the sign? 
Math
23.What is the approximate circumference of a circle with a radius of 6 centimeters? 
math
The circumference of a circle varies directly from its diameter. If the circumference of the circle having a diameter of 7cm is 7 cm, what is the circumferences of the circle whose diameter is 10cm? 
Algebra
The circumference of a circle is found by the formula C=pi(d) where d is the diameter of the circle. Does circumference vary directly as diameter? 
Math
The circumference of a circle varies directly from its diameter. If the circumference of the circle having a diameter of 7cm is 7 cm, what is the circumferences of the circle whose diameter is 10cm?