Answer:
y=-1
Step-by-step explanation:
14-(.5*30) same as dividing 30 by 2
14-15=-1 combine
Whats the question tell me and i'll try to help
Answer:
18.86 feet
Step-by-step explanation:
One rotation of the tire is equal to the circumference of the tire
The formula for circumference of a circle (remember that a tire is shaped as a circle) = πd
where
π = 22/7
d = diameter
The size of one revolution = 2 x 22/7 = 44/7 feet
The distance covered in one rotation of the tire is 44/7 feet
The distance covered in 3 rotations = (44/7) x 3 = 18.86 feet
$6.63
Set up a proportion for the situation and solve for the unknown quantity. Round to the hundredths place because we are dealing with money.
See details:
Answer: 
Step-by-step explanation:
The formula for the lateral area of a cone
is:

Where:
is the radius of the circular base of the cone
As we know its diameter
, its radius is 
is the height of the cone

This is the lateral area of the volcano with the shape of a cone