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velikii [3]
2 years ago
7

Find the value of x. 8. x+9 2x

Mathematics
1 answer:
just olya [345]2 years ago
3 0

2x = \frac{x+2}{2} => 4x = x + 2 => 3x = 2 => x = 2/3

ok done. Thank to me :>

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I need help solving this step by step please.
babunello [35]

Answer:

Yes, i believe that the generalization about the measure of a point angle of a star polygon is true.

First we find sum of interior angle of an n-sided star polygon.

number of triangle in a polygon = n - 2

sum of interior angle of a triangle = 180°

sum of interior angle of an n-sided star polygon = ( n - 2 ) × 180°

To find measure of a point angle, we use:

\frac{|n-2(d)|}{n} × 180°                                                            

To find a point angle we eliminate density by multiplying d by 2  in the formula for finding number of triangle, divide the whole by total number of sides and then multiply by the sum of interior angle of triangle(180°).  

Since all the angle of a regular star polygon are equal, we can calculate each pointy interior angle of a regular star polygon using the formula given below:

\frac{|n-2(d)|}{n} × 180°    

8 0
4 years ago
Solve by graphing 13x+2=11x-1
Dmitrij [34]
13x+2=11x-1
-13x     -13x
2=-2x-1
+1     +1
3=-2x
3/-2=-2/-2x
-1.5=x
4 0
3 years ago
6. If the area of a triangle is 36a²b4 and the base is 12ab, find the height
Nikolay [14]

Answer:

Step-by-step explanation:

Area A = 1/2 bh

36a^2b^4 = 1/2 × (12ab)h

Cross multiply

72a^2b^4 = 12abh

Dividing by 12ab

h = (72a^2b^4)/12ab

h = 6ab^3

3 0
3 years ago
In △RST, RW=27 cm .
ankoles [38]
The correct answer is 
18 CM 
because RX = 2/3(27) = 18
(Enter 18 in the box)
8 0
3 years ago
Read 2 more answers
Mason is multiplying 3 x 5 x 0.1 x 0.1 what demical multiplication problem is he solving
Mariulka [41]

Answer:

The answer is 0.15

Step-by-step explanation:

3 × 5 × (0.1) × (0.1)

15 × (0.01) = 0.15

Thus, The answer is 0.15

<u>-TheUnknownScientist 72</u>

7 0
3 years ago
Read 2 more answers
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