Answer:
Event is not unusual(p>0.05).
Step-by-step explanation:
Given that :
#The sample proportion is calculated as:
#Mathematically, the z-value is the value decreased by the mean then divided the standard deviation :
#We use the normal probability table to determine the corresponding probability;
Hence, the probaility is more than 0.05, thus the event not unusual and thus this is not necessarily evidence that the proportion of Americans who are afraid to fly has increased.
Answer:
6720 quarts could be made in 48 hours.
The rate per day is 3360
Step-by-step explanation:
280/2 = 140 per hour.
In 24 hours ( a whole day) 24 x 140 = 3,360
In 48 hours (2 days) 3,360 x 2 = 6720 or 48 x 140= 6720
Yes,it's the correct shape.
9514 1404 393
Answer:
20 minutes
Step-by-step explanation:
The trains are separating at the rate of 80 +70 = 150 km/hour. The time required to be 50 km apart is then ...
time = distance/speed = (50 km)/(150 km/h) = 1/3 h = 20 minutes
-5y <= -15
divide by -5 (flips the inequality)
y >= 3
closed circle at 3 line to the right
