9. negative 10. negative 11. negative 12.negative 13.negative 14. positive 15. positive 16. negative 17. negative 18. positive
Answer:
y = -2
Step-by-step explanation:
Move all the unknown no. to one side:
4 + 2 = -3y
-3y = 6
Solve the equation:
y = -2
The area of a circle with radius of 13 millimeters is A≈530.93A=πr2=π·132≈530.92916