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
Answer:
A-140
Step-by-step explanation:
A starts at 0 and from the side you're measuring it would be 140 and not 40.
It is 240 because 8 bags of hot dog buns plus 30 packages of hot dog buns would equal 240.
Answer:HOPE THIS HELPS! :D
2268
Step-by-step explanation:
6x7=42
42x6=252
252x9=2268
so, 6x7x6x9=2268
Your answer would be option B. 2y² - y - 6 = 0. This is because if you were to substitute x = y² - 1 into the equation 2x - y = 4, you would get 2(y² - 1) - y = 4, which expands into 2y² - 2 - y = 4, and then simplifies to 2y² - y - 6 = 0.
I hope this helps!
