Answer:
2.00
Step-by-step explanation:
Z score is a statistical that corresponds to the standardization of the regular score to a normal distribution
The formula for Z score is Z = [X - mean ]./ (standard deviation)
Here X = 930.00; mean = 900.00; and standard deviation = 15.00
Then, Z = [930.00 - 900.00] / 15.00 = 30.00 / 15.00 = 2.00
<span>Zero. 9/16 is slightly larger than 1/2, 4/9 is slightly less than 1/2. The two cancel each other out.</span>
X=-2
In the expression, x^2+4/x, substitute x with -2.
Therefore, the expression will be: -2^2+4/-2
-2^2 is -4. -4+4=0.
0 divided by any number is 0. Therefore 0 divided by -2=0
0 is the final answer.