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Paha777 [63]
3 years ago
5

Express 23,495 in scientific notation.

Mathematics
2 answers:
Natasha2012 [34]3 years ago
3 0
2.3495x10^4th. Count how many places you move the decimal, that is what power you apply to 10 after converting it to a decimal.
LenaWriter [7]3 years ago
3 0

Answer:

B)  2.3495 x 10^4

Step-by-step explanation:

A is wrong

C is wrong

D is wrong

its easy


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Which polynomial represents the sum below?
Bezzdna [24]
The correct answer is:  [D]:  " 4x² − 12x − 4 " .
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Explanation: 
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Given:
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    "  (16x²  − 16)  +  ( -12x² − 12x + 12) " ;    Simplify.
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Note the "distributive property of multiplication:
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  a(b + c)  =  ab +  ac ; 

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So we can rewrite the expression as:

  "  (16x²  − 16)  +  1( -12x² − 12x + 12) "  ; 

{The "1" is implied; since "1", multiplied by any value, results in the exact same value.}.

Let us examine the following part of the expression:
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    "  + 1 ( -12x² − 12x + 12 ) " ;

Using the distributive property of multiplication:
 
"  + 1 ( -12x² − 12x + 12 )  =  (1 * -12x²) − (1 * 12x) + (1 * 12) ; 

                                        =   "  − 12x² − 12x + 12 " ; 
_________________________________________________
Now, bring down the other part of the expression; & rewrite:
_________________________________________________
→   " (16x²  − 16)  − 12x² − 12x + 12 " ; 

   →  " 16x²  − 16 − 12x² − 12x + 12 "  ;

Now, combine the "like terms" :

     + 16x²  −  12x²  = 4x²  ; 

     − 16 + 12 =  -4 ; 

and we have " − 12x" ;

So we can rewrite the expression as:
_______________________________________________________

 →   " 4x² − 12x − 4 " ; 

        →  which is:  "Answer choice:  [D]:  " 4x² − 12x − 4 <span>" .
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Correct answer

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