The answer should be. 5x=-12
X2+-4x+4=20 the final answer is 20!

∠ Given are (x + 18)° , x° , 4x° and one Angle is 90° as per diagram
Let ,
1st∠ = (x + 18)°
2nd∠ = x°
3rd∠ = 4x°
so ,

substituting x = 12 at the place of x .
= x° + 18°
= 12° + 18 °
1st∠ = 30°
__________________________________
= x°
2nd∠ = 12°
__________________________________
= 4x°
= 4(12)°
3rd∠ = 48°
Answer:
<h2><em><u>D. 4/25</u></em></h2>
Step-by-step explanation:
As,
0.16
= 16/100
= <em>4/25.</em> [Taking common factor 4 from both 16 and 100]
Answer:
3h+18°+15h= 180°(straight angle)
=>18h+18= 180°
=>18h= 180-18° = 162°
=>h= 162°/18= 9
option B