Answer:
D is correct option.
Step-by-step explanation:
We are given a function
We need to find new function reflection of f(x) across the y-axis.
When function reflection across y-axis
Therefore,
New function,
Thus, D is correct option.
Y=9x-9 Y=9 How do u solve dis ¿-¿
2 answers:
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Answer:
Option d) 840
Step-by-step explanation:
Given that a test to measure psychotic tendencies was given to a group of 1,000 air force cadets who wished to work in nuclear silos.
If Score ≥64 would be eliminated.
X is N(52, 12)
Probability for any random person to get eliminated
=
Now coming to sample size of 1000 people, we find each person is independent of the other and there are two outcomes either >64 or < 64
So Y no of persons who get more than 64 is binomial with n =1000 and p = 0.1587
Mean of Y = E(Y)
= no of people who were not accepted
No of people accepted
Approximately we get 840 so option d