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CaHeK987 [17]
2 years ago
10

HELP ASAP! Thank you!

Mathematics
1 answer:
choli [55]2 years ago
5 0

<u>Let's see what information we get from this picture</u>:

<u>First information</u>

⇒ <em>triangle is an isosceles triangle</em>

   ⇒ meaning that the 'unlabeled angle' adjacent to 'angle of measure x'

       ⇒ are equal

<u>Second information:</u>

   ⇒sum of all the angle's measure of a triangle is 180 degrees

      ⇒ x + x +70 = 180

<u>Let's solve</u>:

 x+ x + 70 = 180\\2x + 70=180\\2x=110\\x=55

<u>Answer: 55</u>

Hope that helps!

#LearnwithBrainly

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8x^2+23=823<br><br> whats going to be the answer I got 0 am I right?
Naily [24]
1) No; you are incorrect.  "0" is NOT a solution.

Plug in "0" for "x" ;

8*0² + 23 =? 823? ; 

8*0  + 23 =? 823? ;

  0 + 23 = ? 823 ? ;  No! ;  "0 + 23 = 23 " ; NOT "823" .
_________________________________________________
2)  The answers:  x = 10, -10 ; or, write as:  x = ± 10 .
_________________________________________________

To solve:

GIven:  8x² + 23 = 823 ; 

Subtract "23" from EACH SIDE of the equation:
_____________________________________________
           8x² + 23 - 23 = 823 - 23 ; 
to get:  
           8x²  = 800 ; 

Now, divide EACH SIDE of the equation by "8" ; 

          8x² / 8 = 800 / 8 ;

to get:  x² = 100 ; 

        Take the "square root" of EACH SIDE of the equation; to isolate "x" on one side of the equation; and to solve for "x" ; 

          √(x²) = √(100) ;

             x  = <span>± 10 .

The answers:  x = 10, -10 ; or, write as:  x = </span><span>± 10 .
_____________________________________________________</span>
5 0
3 years ago
Can I have some help with these? Thanks.
9966 [12]
The x^2 over the x is like subtracting x from x^2, so the new equation would be 9-x/-3. You divide 9 by -3 to get the final answer of -3-x, or -x-3, which is E.
5 0
3 years ago
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