We need to start from the innermost parenthesis and work our way out.
The first parenthesis is 
. These are not like terms because one involves a variable, while the other is a constant term. Two terms are summable if they involve the same power(s) of the same variable(s).
So, we can take one step outwards, and we arrive to the square brackets. We have
and 2z and -13z are like terms, so we can sum them:
Finally we arrive to the whole expression, which is
Because, again, 5z and 11z were like terms.
The value of the probability is 0.54
<h3>How to determine the probability?</h3>
The given parameters are:
P(A) = 0.35
P(B) = 0.54
From the question, we understand that the events are independent.
This means that
P(B|A) = P(B)
Substitute P(B) = 0.54
P(B|A) = 0.54
Hence, the value of the probability is 0.54
Read more about probability at:
brainly.com/question/11234923
#SPJ1
Answer:
7x
Step-by-step explanation:
Since she travels x miles a day, she will travel 7x miles a week because there are 7 days a week
Answer:
i) <em><u>3</u></em><em><u>5</u></em><em><u>C</u></em><em><u>1</u></em><em><u>7</u></em>
<em><u>ii</u></em><em><u>)</u></em><em><u>31116960</u></em>
Step-by-step explanation:
i)total number of eligible are 35
now ways of chosing 17 from 35 is 35C17,
ii)Total ways of selecting 2 seniors from 7 is 7C2
and Total ways of selecting 6 juniors from 8 is 8C6
ways of selecting 4 sopho from 10 is 10C4
ways of selecting 5 freshman from 10 is 10C5
now, total way of selection come to be
10C5×10C4×8C6×7C2
i.e,252×210×28×21
i.e, 31116960
✌️:)
