Answer:

Step-by-step explanation:

Adding 2a to both sides

Taking sqrt on both sides

Answer:
the answer I got is negative 4
Hello!
The answer is B
Hope this helps!
The correct answer for the question that is being presented above is this one: "0.5" <span>The probability that a normal random variable is less than its mean is 0.5. In a normal distribution, 1.0 refers to the one that is stable and is in equilibrium.</span>