Answer:x= -54.7
Step-by-step explanation:
-66.5-66.5= -133+ 78.3= -54.7
Is there any more to the question? i’m confused
Answer:
0.9 L of hardener
Step-by-step explanation:
Find the total mL then convert into L
60*15=900
900mL=0.9
Answer: 0.263169
Step-by-step explanation:
Since for every child there is two outcomes (either a boy or a girl), so it is a binomial distribution.
Let x = Number of boys
Given: probability that a child is a boy: p= 0.513
Binomial distribution formula : 
Now, the probability that both children are boys= 

The chance both children are boys = 0.263169