20 because of the whole is 40 and the shaded part is by 20 you just take half of 40 and you get 20
Y^2-9^2
(y-9)(y+9)
To see if its right:
y*y+y*9-9*y-9*9
y^2+9y-9y-81
y^2-9^2
98 98/100 because you move the decimal point over 2 times
C. Got you man.
Lemme know if I’m right
Answer:
It is a rational number
Step-by-step explanation:
A rational number is defined as numbers written in p/q form ,q not equal to 0,p&q are integers
-6 is same as -6/1
since -6,1 are integers it is a rational..
