Change the fraction into a decimal
Breaking the it down- simplifying
Answer:
Option c -2.8571
Step-by-step explanation:
z-score are calculated as
.
We are given that mean=120 and standard deviation=S.D=35 as X~N(120,35).
Sample size=n=25.
We have to find z-score for x-bar=100. So,
z-score=[100-120]/[35/√25]
z-score=[-20]/[35/5]
z-score=-20/7
z-score=-2.8571.
Thus, the z-score associated with x-bar = 100 is -2.8571.
Answer:
A) 40
Step-by-step explanation:
The sum of the interior angles of a regular polygon is:

For a hexagon, we put n=6

Let x be the 6th interior angle, then



The largest interior angle is 140°
Therefore the least exterior angle will be:

The correct choice is A
Answer:
B
Step-by-step explanation:
If A = {1, 2, 3} and B = {1, 2, 3, 4, 5}
We say that A is a subset of B, since every element of A is also in B.
So
If set A is all odd numbers then R belongs to A bcz all the elements of R are odd numbers