4^-5=1/1024 or 2/2048 or 3/3072
I recommend u use the app called photomath. It works a lot.
Answer:
it is 40pi
Step-by-step explanation:
pi r^2 and you have 144 degrees shaded which is 40% of the circle.
You find the total volume to be 100pi and you divide by .4 (40%) to get 40pi as your answer
The answer would be b A≈1636.8
