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Tom [10]
2 years ago
10

alt="\sqrt{x} ^{2}-\sqrt{27}" align="absmiddle" class="latex-formula">
Mathematics
1 answer:
Lynna [10]2 years ago
5 0

Answer:

x -   3\sqrt{3}

Study hard!

Brainliest please thank you!

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PLEASE HELP I WILL GIVE BRAINLIEST!!
inysia [295]

Answer:

43.96

Step-by-step explanation:

To find Circumference the formula is

2*3.14*R=C

replace R with your radious which is 7

2*3.14*7=43.96

6 0
3 years ago
Four posters cost $19.20. How many posters can you buy for $48.00?
stich3 [128]
You can buy 8 posters with 48.00 19.20x2=38.40 the leftover change isn’t enough to buy more
8 0
3 years ago
The length of a rectangle is 6 units and its width is 4 units. What is the approximate length of the diagonal of the rectangle?
ss7ja [257]
The correct answer is:  [D]:  " 7.2 units" .
_______________________________________________________
Explanation:
________________________________________________________
Use the Pythagorean theorem:

a² + b² = c² ;

in which:  "6 units" and "4 units" equal the lengths of the right angle (formed by the rectangle);  and "c" is the length of the diagonal of the rectangle, or the "hypotenuse", of the right triangle formed by the rectangle;  We wish to solve for "c" ;
_______________________________________________

6² + 4² = c² ;  Solve for "c" ;

↔ c² = 6² + 4² ; 

         = (6*6) + (4*4) ;
 
         = 36 + 16 ;

        =  52 ;

    c² = 52 ;

Take the "positive square root" of each side of the equation; to isolate "c" on one side of the equation; and to solve for "c" ; 

  √(c²)  =  √52 ; 

    c = √52 ;  

At this point, we know the 7² = 49 ;  8² = 64 ;  so, the answer is somewhere between "7" and "8" ; yet closer to "7" ;  so among the answer choices given; 

The correct answer is:  [D]:  " 7.2 units" .
_________________________________________
However, let use a calculator:

c = √52 = 7.2111025509279786 ; which rounds to "7.2" ;
   which corresponds to:  
___________________________________________
Answer choice:  [C]:  " 7.2 units" .
___________________________________________
5 0
3 years ago
True or False: If we have an integer primal solution with cost C and a fractional dual solution with cost at least C/2, the size
maria [59]

Answer:

True

Step-by-step explanation:

The size of the vertex cover is atleast twice the size of the maximum edge. Vertex must contain atleast one vertex from the matched edge. Vertex are never the strong dual solutions of each other.

3 0
3 years ago
HELP ASAP!!!!! PLEASE
german

Answer: imma say A

Step-by-step explanation: sorry if wrong

8 0
2 years ago
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