The formula for the radius is
so the answer would be 6 inches
<u>Your question: </u>given that sin(30)=1/2 and cos(30)=(sqrt3)/2, use trigonometric identities to find the value of cot(30)
The correct answer would be D 
Given:
Circular racetrack with a diameter of 1/2 mile
Find: how far does a car travel in one lap around the track?
We need to find the circumference of the racetrack.
Circumference is multiplying pi to the diameter of the racetrack.
Circumference = 3.14 * 1/2 mile
Circumference = 3.14/2 mile
Circumference = 1.57 miles rounded to the nearest tenth is 1.60 miles.
If you would like to know what is the value of the total ticket sales, you can calculate this using the following steps:
$x ... the value of the total ticket sales
5% of $x is $125
5/100 * x = 125 /*100/5
x = 125 * 100 / 5
x = $2500
Result: The value of the total ticket sales is $2500.
