Answer:
8.5 meters
Step-by-step explanation:
the circumference is the diameter times 3.14 or pi
to find the diameter divide the circumference by 3.14
26.69/3.14 = 8.5
Checking our work
8.5 * 3.14= 26.69
Answer:
15
Step-by-step explanation:
We know that a half is equal to 3/6. Therefore 5/6 is higher up on the number line than 0.5, and it should be rounded up
Answer:
Solving the radical
we get 
Step-by-step explanation:
We need to express the radical
using the imaginary unit i
Prime factors of 81 are: 3x3x3x3
and 
Solving:

So, Solving the radical
we get 