• Increased by 3
n+3
• Twice the number
2(n+3)
• Three times the number
3n
• Final result
2(n+3)-3n
Answer:
Pretty sure it's B, the second one from the top
The answer is D (the last answer choice)
Given:
The equation is:

To find:
The solution for the given equation.
Solution:
We have,

It can be written as:



Taking square root on both sides, we get
[Radius cannot be negative]


Therefore, the value of r is about 6.36 cm.