im pretty sure the answer is 18
Answer:
x=5.657 y=5.657
Step-by-step explanation:
First:The area of a circle is πr squared. Not r2
Second. The area of the circle HAS to be irrational because π is an irrational number. The answer would be, if solved for a circle with the radius of 0.75, the area would be 0.5625π, which is irrational.
2nd
Step-by-step explanation:
8/9 to the second power equals to 64/81. Hope this helps!