(I'm sorry if this is wrong, I'm bad at math but this one was pretty simple really) 6-1.5=4.5
Hope this helps! Let me know
The exponent tells you if the term is a large number or small number
To write a small number (between 0 and 1) in scientific notation, you move the decimal to the right and the exponent will have to be negative, as in the following example. You may notice that the decimal point was moved five places to the right until you got to the number 4, which is between 1 and 10
Split the second term in 2x^2 - x - 6 into two terms
2x^2 + 3x - 4x - 6
Factor out common terms in the first two terms, then in the last two terms
x(2x + 3) - 2(2x + 3)
Factor out the common term 2x + 3
<u>(2x + 3)(x - 2) </u>
It would be: 81*37.5 / 100 = 30.375
Among 180 people 27 are managers, 100 are floor assistants and the rest are helpers. Under the rest we mean 180-27-100=53 people.
The event "randomly selected employee is not a floor assistant" is the same as "randomly selected employee is manager or helper". You can count that in total 27+53=80 people form the set of managers and helpers.
Then the probability that randomly selected employee is not a floor assistant is
Answer: 
