Answer:
A and B
Step-by-step explanation:
C) 9 7/8 - (- 2 4/5) - (- 1/2) =
= 9 7/8 + 2 4/5 + 1/2 (F)
D) - (- 9 7/8 + 2 4/5) - 1/2) =
= 9 7/8 - 2 4/5 - 1/2 (F)
E) 9 7/8 - (- 2 4/5 - 1/2) =
= - 7/8 + 2 4/5 + 1/2 (F)
Using the combination formula, it is found that the number of different simple random samples of size 3 that can be selected from this population is:
b. 56.
The order in which the items are selected is not important, hence the <em>combination formula</em> is used to solve this question.
<h3>What is the combination formula?</h3>
is the number of different combinations of x objects from a set of n elements, given by:
In this problem, 3 items are chosen from a set of 8, hence:
Hence option b is correct.
More can be learned about the combination formula at brainly.com/question/25821700
Answer:
34.6 units
Step-by-step explanation:
Given data
A (-5, -5), B (3, 4)
distance is
B (3, 4), C (3, -5)
C (3, -5), A (-5, -5)
Hence the perimeter
= 12.80+9+12.80
=34.6 units