The answer is 2[2^2(2-1)]=2*4*1=8
Answer:
a = -2
b = 7
Step-by-step explanation:
5a+3b=11
-2a+3=b
substitute for b:
5a + 3(-2a + 3) = 11
5a -6a + 9 = 11
-a = 2
a = -2
b = 7
There are 4 boys and 12 students in total. It would be 4/12, but if it was to be simplified, it would be 1/3. The probability of a boy being selected is 1/3.
Answer:
Step-by-step explanation:
Making denominator same in first bracket we get
Dividing 6 by 3 we get 2
using distributive law
Hence this is our answer