Step-by-step explanation:
1. Multiply 18.5 by 6.
18.5 x 6 = 111
2. Subtract 129.25 by 111.
129.25 - 111 = 18.25
Therefore, the answer is A. 18.25
The sample space of an experiment is changed when some additional information pertaining to the outcome of the experiment is received. The effect of such information is to <u><em>reduce</em></u><em> </em>the sample space by excluding some outcomes as being impossible which before receiving the information were believed possible . The probabilities associated with such a <u><em>reduced</em></u> sample space are called conditional probabilities.
<u><em>Knowing a student’s grade level does not help determine if he or she uses social media.</em></u>
<u><em /></u>
The given survey explains the conditional probability.
The students of the<u><em> reduced</em></u> sample space i.e. of 9th grade have the probability of 81% who use the social media.
The students of 8th grade that use social media can be greater or less than 81%.
Therefore this experiment <u><em>does not</em></u> help determine if he or she uses social media on the basis of his/her grade.
Only the <u><em>last option </em></u>is correct.
The conditional probability can be understood by the following.
brainly.com/question/10739947
brainly.com/question/4403090
Answer:
I can't read that
Step-by-step explanation:
The correct answer is
<span>5 - 4 + 7x + 1 = 7 x + 1</span>
Answer: 
and 
Step-by-step explanation:
Alright, lets get started.
The given equation is :
Adding 8 in both sides, it will become
To make it perfect square, we need to add 25 and subtract 25
Adding 17 in both sides
taking square root
So,
and .. Answer
Hope it will help :)
