Answer:
y = 4x
Step-by-step explanation:
If you substitute the numbers for x and y, you'll find that y = 4x is the only equation that works.
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
Answer:
12x+4
Step-by-step explanation:
distribute the 4 to the 3x and 1 so 3*4=12 so 12x 1*4=4
Answer:
answer is 1
Step-by-step explanation:
We are given to check
whether these numbers are proportional
we know that any set of numbers are proportional when their ratios are equal
so, firstly we will ratios
First set of numbers:
We are given first set of numbers as 15 , 20 and 30
so, it's ratio is
now, we can simplify it
Since, common factor is 5
so, we can cancel 5
and we get
Second set of numbers:
We are given first set of numbers as 24 , 32 and 48
so, it's ratio is
now, we can simplify it
Since, common factor is 8
so, we can cancel 8
and we get
We can see that both sets of numbers are having same ratios
so, they are proportional.........Answer