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SVETLANKA909090 [29]
3 years ago
15

Lesson20 homework2.39t

Mathematics
1 answer:
gulaghasi [49]3 years ago
8 0
Can you send
picture or the question...please?
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Help me please someone
Zigmanuir [339]

9514 1404 393

Answer:

  x = 150

Step-by-step explanation:

The sum of the exterior angles of a convex polygon is 360°.

  65° +80° +72° +(x -7)° = 360°

  x = 150 . . . . . . divide by °, subtract 210

5 0
3 years ago
Which polynomial represents the sum below?
Bezzdna [24]
The correct answer is:  [D]:  " 4x² − 12x − 4 " .
___________________________________________________
Explanation: 
___________________________________________________
Given:
___________________________________________________
    "  (16x²  − 16)  +  ( -12x² − 12x + 12) " ;    Simplify.
___________________________________________________
Note the "distributive property of multiplication:
___________________________________________________
  a(b + c)  =  ab +  ac ; 

  a(b − c)  =  ab − ac .
___________________________________________________
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:
_________________________________________________
    "  + 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>" .
</span>_______________________________________________________
 
5 0
3 years ago
Given the function f(x)=6 (4x-6)+18, determine t e value of x such that f(x)=6
In-s [12.5K]
I hope this helps you!

8 0
3 years ago
Read 2 more answers
Write a conditional statement for a following Venn diagram
Amanda [17]

The image shows that all integers are rational numbers, but there are rational numbers that are not integers.

The formal statement would be

\mathbb{Z}\subset \mahtbb{Q}

6 0
3 years ago
Choose the correct term that makes the sentence true. The (greatest) (or) (least) of the common factors of two or more numbers i
stiv31 [10]
the greatest is 10 and the least is one but I don't know for sure but I don't know if that what you looking for
5 0
3 years ago
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