Answer:
5
Step-by-step explanation:
by pythagoras theorem
(hyp)^2=(leg1)^2+(leg2)^2
the hypotenuse is the side opposite to 90 degree (BC=13)
AC=leg 1 = 12
13^2=12^2 + leg 2^2
169=144+ leg 2^2
leg2 ^2=169-144
leg2^2= 25
leg2= root 25
leg2=5
Answer:
b = 4
Step-by-step explanation:
4b + 5 = 1 + 5b
4b-5b + 5 = 1
4b-5b = 1 - 5
-b = 1 - 5
-b = -4
-b = -4
b - 4
Answer:
1980
We can choose 2 men from 9 in 36 in ways.
We can choose 2 women from 11 in 55 ways.
For any arrangement of 2 men there are 55 ways of combining them with 2 women => 55 * 36 = 1980 total ways.
If you're wondering how i got the numbers i used the combination formula:
C(n, k) = 
Answer:
0.08
Step-by-step explanation: