S=Sample Space
n(S)=no. of total outcomes of sample space
= 50%×10=5
n(E)=no. of favourable events=3
Probability of giving birth to boy is,
P(B)=n(E)/n(S)
=3/5....Ans
Yea it will take him 16 days
Find a counter example?
hmm
|a-b| finds the distance between a and b,
|a|-|b| finds the distance between a and b, such that |a|>|b|
ah ha
so we just need to find a and b such that b>a
b=10
a=5
|a-b|=|5-10|=|-5|=5
|a|-|b|=|5|-|10|=5-10=-5
5≠-5
tada
it is not true for all real numbers
if for all numers such that b>a, it is false
Answer:

Step-by-step explanation:
Since we see that 3/7 is multiplied by itself three times, we can use exponents as a shorter way to write this. The expontent tells us how many times the base number, 3/7, is multiplied by itself.
= 
We then multiply by -1 to (3/7)^3 to get the exact answer.
