Answer:
assuming you meant (3/4)/(2/5)
15/8 or 1 7/8
Step-by-step explanation:
use a calculator
Answer:
79.77%
Step-by-step explanation:
P(X≥120) = normalcdf(120,1e99,130,12) = 0.7976716754 ≈ 0.7977 = 79.77%
Therefore, about 79.77% of operations last at least 120 minutes
-x-1
all you do is subtract 9x from 8x.
Answer:
what are you calculating here
Step-by-step explanation: