Answer:
27720
Step-by-step explanation:
Denote by
the binomial coefficient "n choose k". Given k<n,
is the number of ways of choosing k elements from a set of n elements (the order in which we choose the elements doesn't matter).
First, we can form the group of 3 students. This is done by choosing 3 students from the class of 12 students, so it can be done in
ways. We can't repeat students, then we must form the other groups from the remaining 9 students. If we next form the group of 4 students, there are
ways of choosing it. Now, there remain 5 students without a group, so they have to conform the group of 5 and this can only be done in 1 way. By the multiplication principle, the number of ways of forming the groups is
Answer: 102
Step-by-step explanation:
6x6 to get the square
7x6 to get part of the other shape
21 -6-7 to get the triangle that we don't have a number
8x6 to get a square but then divide by 2 too get the triangle.
now add all together to get 102
Answer:
18b-4x-5y-26
Step-by-step explanation:
-4(x-2)-5(y+2)+(-3)(8-6b)
-4x+8-5y-10-24+18b
-4x-5y-26+18b
18b-4x-5y-26
Answer:
Slope is 1, in slope intercept form it will be y=1x+b
Step-by-step explanation:
You will use
y2-y1/x2-x1