To square a number means to multiply it by itself. So 9 squared would be:
9x9
Which is
81
I hope this Helps!
Ten times the sum of two and five tenths and thirteen and 5 tenths.
-201+189=-12-201=-213+189=-24 . S the sign would be negative(-).
Answer:
78.54 is the radius of a circle of 5 inches
Step-by-step explanation:
the formula of the area of a circle is
A = πr^2
When you multiply 5 times 5, you get 25. Then, multiply 25 by pi to recieve 78.54 rounded to the nearest hundredth.