For this case we have that by definition, the circumference of a circle is given by:

Where:
d: Is the diameter of the circumference
According to the data we have to:

Substituting:

Rounding out we have that the diameter is: 80
Answer:
Option B
Answer:
-5+√3i is the given root so -5-√3i must be the other root
Step-by-step explanation:
We know that complex roots must come in pairs. The pairs are complex conjugates. (a+bi) and (a-bi)
You are missing a sign between -5 and the square root
So if - 5+ sqrt(3) i is a root, then -5 - sqrt(3) i must be a root
if -5 - sqrt(3)i is a root, then -5 + sqrt(3)i must be a root.
I will assume you missed a + sign
-5+√3i is the given root so -5-√3i must be the other root
After 360 degrees, it starts over
so minus 360 from 405 to get 45 degrees
so it would be 45 degrees
In your question that ask to find the speed of the current in meters per second where as the paddle wheel's radius is 0.2m and rotates at 100rpm. In your question, the acceleration could be, based on my calculation, the acceleration is V= 2.0994 m/s
11: 14 and 20, continued
0.173 to nearest hundredth: 0.17
7.09 <7.99
3/4 longer
numerical expression: 13
2430 divided by 5: 486
980 divided by 1000= 0.98
162 x 78=12636
Fifty-three hundredths: .53
That's all I'll do for now :)
Your welcome!
Good luck!