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strojnjashka [21]
3 years ago
16

Which statements are true about the polynomial 4x3 – 6x2 + 8x – 12? Check all that apply. The terms 4x3 and 8x have a common fac

tor. The terms 4x3 and – 6x2 have a common factor. The polynomial is prime. The factored polynomial is (2x2 – 3)(2x + 4). The polynomial can be grouped in different ways to factor by grouping.
Mathematics
2 answers:
lyudmila [28]3 years ago
9 0

Answer:

Option 1,2 and 5 are true.

Step-by-step explanation:

Given : The polynomial  4x^3- 6x^2 + 8x- 12

To find : Which statements are true about the polynomial? Check all that apply.

Solution :

First we find the factor of the given polynomial.

4x^3- 6x^2 + 8x- 12=2(x^2+2)(2x-3)

Now, We check one by one.      

1) The terms 4x^3 \text{ and } 8x have a common factor.

Yes, it is true they have common factor i.e, 4x.

2) The terms  4x^3 \text{ and } -6x^2 have a common factor.

Yes, it is true they have common factor i.e, 2x^2.

3) The polynomial is prime.  

No, It is not prime, and the factored polynomial is 4(2x-3)

4) The factored polynomial is (2x^2-3)(2x + 4).

No, It is not correct. As factored of polynomial is 2(x^2+2)(2x-3)

5) The polynomial can be grouped in different ways to factor by grouping.  

Yes, it is true.

Therefore, Option 1,2 and 5 are true.

likoan [24]3 years ago
7 0

hi


1 The terms 4x3 and 8x have a common factor.


2 The terms 4x3 and – 6x2 have a common factor.


5 The polynomial can be grouped in different ways to factor by grouping.


are right!


:)

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48 = 2(2w)+(4+2w)2. What Is w
crimeas [40]

Hello from MrBillDoesMath!

Answer:

w = 5



Discussion:

48 = 2 (2w) + (4 + 2w)2       =>

48 = 4w        + 4*2 + (2w)*2  =>

48 = 4w       +  8    + 4w        =>   as 4w + 4w = 8w

48 =  8w      +  8                    => subtracting 8 from each side

48 - 8 = 8w                            => divide both sides by 8

(48 -8 )/8 = w                        =>

40/8 = w                                =>

w = 5                                      =>


Check:  2(10) + ( 4 + 2*5)*2 = 20 + 14*2 = 20 + 28 = 48




Thank you,

MrB

6 0
2 years ago
Write 3435.332 out using words<br> (Pic for friends)
andrezito [222]

three thousand four hundred thirty-four and three hundred thirty-two thousandths

5 0
3 years ago
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 44 o
Cerrena [4.2K]

Answer:

a) No 95% of values will fall between (24;64); 68,27% will fall between (34;54)

b)71,83 % will fall between 34 and 64 ounces

Step-by-step explanation:

Empirical rule establishes, for a  normal distribution with mean μ and σ as standard deviation:

In interval   μ  ±  σ    or   ( μ  +  σ ;  μ  -  σ) we should find 68.27 % of all values of the population, and by simmetry 68.27/2 = 34,14 % should be over the mean and the other half would  be values below the mean

Therefore in our case

μ  +  σ  =  44 + 10  =  54

And

μ  -  σ  = 44 - 10   = 34

a) Then  68,34 % of values will fall in this interval

We know now that value 34 is 1* σ   below the mean, and is at the limit of 34,14 %

b) μ  +  2*σ  =   44 * 2*10  =  44 + 20  =  64

64 is the upper limit for the interval   μ  +  2*σ  and we know that 95.45 % of all values will fall between (  μ  -  2*σ  ;  μ  +  2*σ ) and by simmetry just one side of this interval (the right side ) will have 95.45/2 = 47;73 %

Then in interval going from ( 34 ; 64 ) we shoud find 47.73 + 34,14

71,83 % of all values will fall between 34 and 64

7 0
3 years ago
Simplify the expression:<br> -2(-1 + 2w) =<br> Submit please
Margaret [11]

-2(-1+2w)

distribute

2-4w

put in standard form

-4w+2

5 0
1 year ago
Someone plz help me :(
saul85 [17]

the answer is A

hope this helps

4 0
2 years ago
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