Simply put, 18 x 2/3 = 36/3 = 12
The horses eat 12 bales
The answer is -1 because, -2x+-6 = -4 is the same as -2x=2 which equals -1
Answer:
parabola
Step-by-step explanation:
Answer:
a) 0.4164
Step-by-step explanation:
Mean lifespan (μ) = 18.8 days
Standard deviation (σ) = 2 days
For any given lifespan 'X', the z-score is:

For X=12.04 days:

A z-score of -3.38 falls in the 0.036-th percentile of a normal distribution.
For X=18.38 days:

A z-score of -3.38 falls in the 41.68th percentile of a normal distribution.
The probability that a butterfly lives between 12.04 and 18.38 days is
