Answer:
B
Step-by-step explanation:
Use the formula for radius and circle circumference.

Since we know the diameter, if we divide that by 2, we can get the radius.

Now we can plug that value into the circumference formula to get the circumference.

*Since we're rounding to the nearest inch.
Step-by-step explanation:
In one second Jenny walks = 2 m
In 9seconds she can walk = 9× 2m
= 18m
<h3>The area of base is 0.25 square meter</h3>
<em><u>Solution:</u></em>
Given that,
The capacity of a cylindrical fuel tank is 2.5 kl and its height 10 m
To find: area of base
<em><u>The volume of cylinder is given as:</u></em>

The area of base of cylinder is area of circle

Therefore,

From given,
h = 10 m
v = 2.5 kl
1 kilo liter = 1 cubic meter
Therefore,
2.5 kl = 2.5 cubic meter
Substitute height = 10 and volume = 2.5

Thus area of base is 0.25 square meter
Answer: The entire term b^2 − 4ac must be divided by 2a before its square root can be determined.