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Julli [10]
3 years ago
12

Simplify: 3x^2-8x+4 and show work please

Mathematics
1 answer:
Bad White [126]3 years ago
5 0

believe what you're asking is to turn the trinomial into two binomials

So you first have to get 3x²; the only way to get this is

(3x    )(x     )     when multiplying that, you would get 3x²

when dealing with the -8x and the 4, you must find numbers that are factors of four (when multiplied together they will equal 4) and will multiply with the x's to get -8

(3x-2)(x-2)

you can tell that this is the answer because when you multiply though you will get:

3x-2x²-6x+4

or: 3x²-8x_4

Hope this helped


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Step-by-step explanation:

Given:

Mean = 33700

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First, we need to find the new mean (average) if one of the employees gets a 3500 raise.  The average is the total salary divided by number of employees:

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b)

The mode is the most common number in a set.  Since there are only five employees, and the mode is different than the median, then the two highest earners must have the same salary.  The salaries from smallest to largest is therefore:

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When the median gets the 3500 raise, the set becomes:

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So the new median is 35600.

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The most common number is still 35600.  So the mode hasn't changed: 35600.

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