The square root of -18 is 3i√
2
Hope this helps
Answer:
100.26
Step-by-step explanation:
You would find the area of the semi circles on either side of the rectangle by plugging the diameter into the formula for the area of a circle. Then you would add that to the are of the rectangle.
This is what that would look like:
1. Divide 6 (the diameter) by 2 because 


2. plug into the formula 

3. square the 3

4. multiply 9 by 3.14 (pi)

This means the area of both the semi circles added together would equal 28.26
Then you would use the formula
to find the area of the rectangle
1. plug in the numbers given
· 
2. solve

Then add the area of the semicircles to the area of the rectangle

to get the area of the entire figure:

Answer= 285000
How to= the number you are dividing by has a decimal move the decimal point all the way to the right counting the number of places you’ve moved it to. Then move the decimal point in the number you’re dividing the same number of places to the right
The answer is -249. Hope this helps! Message me with any questions :)