If a(x)=4x-2
b(x)=12-x
find b(a(3))
b(a(3))=12-(4(3)-2
12-(12-2)
12-10=2
b(a(3)=2
answer is 2
Answer:
0.3257
Step-by-step explanation:
Given an approximately normal distribution:
Z = (x - mean) / standard deviation
Mean = 496 ; Standard deviation = 110
For :
P(x > 545.7)
We obtain the standardized, Z score
Z = (545.7 - 496) / 110
Z = 49.7 / 110
Z = 0.4518
Hence, using the Z distribution table :
P(Z > 0.4518) = 1 - P(Z < 0.4518)
P(Z > 0.4518) = 1 - 0.67429
P(Z > 0.4518) = 0.32571
Answer: the answer is 0.125 foot per square foot
Step-by-step explanation: