Help me pls number 4 I’m giving brainlest
1 answer:
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Answer:
0.395
Step-by-step explanation:
The computation of the probability that none of the three shoppers purchased electronics is shown below:
So, first we have to determine the number of shoppers without considering the purchase i.e
= Total number of shoppers - electronics
where,
Total number of shoppers = Offices supplies + electronics + clothing + beauty supplies - electronics
= 18 + 25 + 40 + 12 - 25
= 95 - 25
= 70
Now the probability is
=
= 0.395
You must factor.
The factored form is equal to the assigned form.
Values a, b correspond to the factored 1, -1.
Value of x however remains unknown. But we can change that.
Given factored result,
We can set expression equal to 0 then find such x that when added with number a or b results with 0.
Hence x has 2 solutions.
Hope this helps.