Simplify the numerical expression (-0.9)^2.
The simplified form is
0.81
To simplify the numerical expression (-0.9)^2, we need to multiply -0.9 by itself.
The square of any number is obtained by multiplying the number by itself. So, in this case, we need to multiply -0.9 by -0.9.
Using the rule of multiplying two negative numbers, the result will be positive.
So, (-0.9)^2 = (-0.9) x (-0.9) = 0.81.
Therefore, the simplified form of (-0.9)^2 is 0.81.