Answer:
6.7% of children who finished the race in under 45 seconds.
Step-by-step explanation:
We are given the following information in the question:
Mean, μ = 75 seconds
Standard Deviation, σ = 20 seconds
We are given that the distribution of time of completion is a bell shaped distribution that is a normal distribution.
Formula:
P(finished the race in under 45 seconds.)
P(x < 45)
Calculation the value from standard normal z table, we have,

6.7% of children who finished the race in under 45 seconds.
Answer:
8 inch³
Step-by-step explanation:
Side should be 2 inch
Volume = side³ = 2³ = 8 inch³
Answer:
-1
Step-by-step explanation:
-3(2) = -6 + 5 = -1
Answer:
ASSOCIATIVE PROPERTY OF MULTIPLICATION
Step-by-step explanation:
HOPE IT HELPS
HAVE A GREAT DAY