Answer:
−30a−6
Step-by-step explanation:
Let's simplify step-by-step.
−9a−10−6a+7−9a−10−6a+7
=−9a+−10+−6a+7+−9a+−10+−6a+7
Combine Like Terms:
=−9a+−10+−6a+7+−9a+−10+−6a+7
=(−9a+−6a+−9a+−6a)+(−10+7+−10+7)
=−30a+−6
BRAINLIEST. if you don't mind.
Answer : 0.0129
Step-by-step explanation:
Given : Based on FAA estimates the average age of the fleets of the 10 largest U.S. commercial passenger carriers is years and standard deviation is years.
Sample size :
Let X be the random variable that represents the age of fleets.
We assume that the ages of the fleets of the 10 largest U.S. commercial passenger carriers are normally distributed.
For z-score,
For x=14
By using the standard normal distribution table , the probability that the average age of these 40 airplanes is at least 14 years old will be :-
Hence, the required probability = 0.0129
Answer:
-243
Step-by-step explanation:
(-3) (-3) (-3) (-3) (-3) = - 243
Divide 7 by 32 and go from there
Answer:
The probability that he or she is a male or a civilian employee is 1.037068
Step-by-step explanation:
Probability of sworn officers = 0.696
Probability of civilians = 1 - 0.696 = 0.304
Probability of male sworn officers = 0.882*0.696 = 0.6139
Probability of male civilian = (0.304*(1-0.608)) = 0.1192
Hence probability that he or she is a male or civilian employee is
0.6139 + 0.1192 + 0.304 = 1.037068