Value of a = 3
Value of a + b = 3 + (-2/3)
Value of a + b = 2 1/3
Difference = 3 - 2 1/3
Difference = 2/3
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Answer: They are 2/3 unit apart
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Answer:
answer would be B : (0, -8); x = 0
Step-by-step explanation:
The empirical rule says about 95% of any normal distribution lies within two standard deviations of the mean. This means in this case 95% of pregnancies last between

and

days.