Answer:
36
Step-by-step explanation:
12/2 = 6
6^2 = 36
Answer:
The number of ways the committee be chosen is 295 ways.
Step-by-step explanation:
There are 6 men and 8 women.
A committee of 4, in which there must be at least 1 woman.
Let W- woman. M - man
So the combinations are: 1W, 3M or 2W, 2M or 3W, 1M or 4W
Now we have to use the combination formula and find the answer.
nCr = 
Using the above formula, we can find the answer.
4C1 × 7C3 + 4C2×7C2 + 4C3×7C1 + 4C4
= 
Simplifying the above factorials, we get
=4×35 + 6×21 + 4×7 + 1
= 140+126+28+1
= 295
The number of ways the committee be chosen is 295 ways.
Answer:
16 people
Step-by-step explanation:
This is a set problem
let first session be a
let second session be b
128 people attended at least one session = a∪b
a. 3/4 attended both session 1&2 = a∩b
b. 7/8 attended session 2 = p(b) i.e population b
c x attended session 1 = p(a) i.e. population a
lets get the figures.
- For both sessions 3/4 × 128 = 96 = a∩b
- For second session 7/8 × 128 = 112 = b
- The formular is a∪b = p(a) + p(b) - a∩b
- a∪b = 128 (they at least one session)
lets substitute into the equation
let p(a) be x
128 = x + 112 - 96
128 = x + 16
x = 112 - no of people that attended the morning session.
But to find those that ONLY attended morning session
x - a∩b
112 - 96 = 16
It remains uncertain then. is it in science or math?
Answer:
im not 100% but i think its
T= 2t-4+(t-4)+7
