81-1= 80
80 / 2 = 40
D = 40
So:
40(2) = 81 - 1
I think it is moving backward because when a car is parking and you are leaving, then you would be moving backward.
Hope this helped☺☺
Answer:
Irrational
Step-by-step explanation:
When we take the square root of both sides, we get z = 0.141421... and since there are no fractions and the decimals go endlessly on, it is irrational.
