Find the missing character/number in the following figure?

The correct answer is 5.

Step-by-step explanation:

For the first circle,

When we add 6,18,12,

we get 6+18+12 = 36

Now

when we divide 36 with 6 we get 6.

again,

for second circle,

When we add 10,53,18

we get 10 + 53 + 18 = 81

when we divide 81 with 9 we get 9.

Now

let the unknown number be x.

so,

Pattern : When we add all of the number in the circle excluding the smallest number and dividing it by the smallest number we get the same number.

following the pattern,

Here in the options x>=5 (smallest number in the circle 3)

so, we can take smallest number as 5.

As the pattern,

(x+10+10)/5 = x

or, (x+20)/5 = x

or, x+20 = 5x

or, 5x-x = 20

or, 4x = 20

so, x = 5

a.   we have two

lines:   y = 4-x   and  

y = 8-x^-1

given two simultaneous equations that are both to be

true, then the solution is the points where the lines cross. the intersection is

where the two equations are equal. therefore the solution that works for both

equations is when

4-x = 8-x^-1

this is where the two lines will cross and that is the

common point that satisfies both equations.

b.   4-x = 8-x^-1

  x           4-x       8-x^-1

-3           7        

8.33

-2           6         8.5

-1           5         9

  0           4        

-

  1           3        

7

  2           2        

7.5

  3           1         7.67

the table shows that none of the x values from -3 to 3 is

the solution because in no case does

4-x = 8-x^-1

to find the solution we need to rearrange the equation to

find for x:

4-x = 8-x^-1

multiply both sides with x:

4x-x^2 = 8x-1

x^2+4x-1=0

x= -4.236, 0.236

therefore there are two points that satisfies the

equation.

find y:  

x=-4.236

y = 4-x   = 4 – (-4.236)

= 8.236

y = 8-x^-1 =   .236)^-1

= 8.236

x=0.236

  y = 4-x   = 4 – (0.236) = 3.764

y = 8-x^-1 =   8-(0.236)^-1

= 3.764

thus the two lines cross at 2 points:

(-4.236, 8.236) & (0.236, 3.764)

c.   to solve

graphically the equation 4-x = 8-x^-1

we would graph both lines: y = 4-x   and   y

= 8-x^-1

the point on the graph where the lines cross is the

solution to the system of equations.

just graph the points on part b on a cartesian coordinate

system and extend the two lines.   the

solution is, as stated, the point where the two lines cross on the graph.

step-by-step explanation:

mark brainliest!