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Kaylis [27]
3 years ago
8

3x^3-24x^2 factor completley

Mathematics
2 answers:
larisa [96]3 years ago
8 0
3x^2 out of 3x^2-24x^2 *3x^2(x-8)














svetoff [14.1K]3 years ago
7 0
3x^3-24x^2=> this is the expression, find what they have in common: 3 and x^2
3x^2(x-8)=> so we took out 3x^2

I hope this helps you:)!
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Given the equation 4x + 7 = 3(2x − 5), solve for the variable. Explain each step and justify your process.
MariettaO [177]
Part 1: 4x + 7 = 3(2x - 5) 

4x+7=6x-15 

7=6x-15-4x

 

7=2x-15 

7+15=2x 

22=2x 

22=2x / 2 

x=11 

Part 2: Sam is not correct because <span>he messed up the second step. He added 2x on both sides to get 7x, instead he should have subtracted. </span>

5 0
3 years ago
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SVETLANKA909090 [29]

Answer:

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I hope this helped :)

8 0
3 years ago
Last time, one out of every 4 students in our class was absent. This time, after Jen came back, only one out of every 5 students
VMariaS [17]

Answer: There are 20 students and 4 students are not here today.

Step-by-step explanation:

If the number of students = 4

Let the number of students be 'x'.

Fraction of students absent = \dfrac{x}{4}

If the number of students = 5

Fraction of students absent = \dfrac{x}{5}

And Jen came back,

So, the fraction of student absent is also written as

\dfrac{x}{4}-1

According to question, it becomes,

\dfrac{x}{5}=\dfrac{x}{4}-1\\\\\dfrac{x}{5}=\dfrac{x-4}{4}\\\\4x=5(x-4)\\\\4x=5x-20\\\\4x-5x=-20\\\\-x=-20\\\\x=20

Hence, there are 20 students in our school.

And number of students are not here today is \dfrac{20}{5}=4

3 0
3 years ago
The graph shows the relationship between the number of granola bars and amount of calories per bar.
castortr0y [4]

part a y= x × 100

Step-by-step explanation:

1 bar is 100 calories so you would times it by 100 for every bar

5 0
3 years ago
What is the value of the dicsriminant of x^2-7x+4?
Aleks [24]

Answer:

33.

Step-by-step explanation:

x^2 - 7x + 4.

The discriminant of the above

= b^2 - 4ac

=  (-7)^2 - 4*1*4

= 49 - 16

= 33.

8 0
3 years ago
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