Answer:
The number of ways in which students were chosen is 45 ways .
Step-by-step explanation:
Given as :
The number of students in a class = x = 10
The number of students chosen by teacher to go to library = y = 2
Let The number of ways in which students were chosen = n ways
<u>Now, According to question</u>
So, number of ways in which students were chosen = 
Or, n ways = 
Or, n = 
Or, n = 
Or, n = 
Or, n = 
Or, n = 5 × 9
i.e n = 45
So, The number of ways in which students were chosen = n = 45 ways
Hence,The number of ways in which students were chosen is 45 ways . Answer
(x + 2) = 3
-2 -2
0 1
x = 1
I hope this helps you
dogs-24,4=10,4
dog=34,8
Can you help me with my posted questions
D because the simplified fraction is 1 5/8 and the others are 1 or lower