Answer: Our required probability is 0.99338.
Step-by-step explanation:
Since we have given that
n = 100
p = 0.200
So, 
So, we can apply normal approximation.
Mean = 20
Standard deviation = 
Since 
So, Probability that fewer than 30 but a packet after testing a free sample is given by

Hence, our required probability is 0.99338.
Answer:
5 and 7
Step-by-step explanation:
5 and 7 are vertical angles. The others are supplementary
Answer:
<h3>A and D </h3>
Step-by-step explanation:
Hope this helps
if its wrong i´m sorry i got my answer from math.way