Answer:
8 to 18
Step-by-step explanation:
8 to 18
The Z-score is calculated by the formula below

Step 2: Substitute the given parameters in the formula

Hence, the z-score of a person who scored 145 on the exam is -0.5
The answer has to be 1,350 is that one of your options
Step-by-step explanation:
x² + 4x − 4 = 8
x² + 4x − 12 = 0
(x + 6) (x − 2) = 0
x = -6 or x = 2
<em>Note: Your equation seems a little unclear. But, I am assuming that your equation is:</em>

<em>Because my solution would still clear your concept about this topic, no matter what the question is.</em>
Answer:
Please check the explanation.
Step-by-step explanation:
Given the equation

subtract
from both sides




∵ 
