Please help with this angle question 15 points

x = 48°

Step-by-step explanation:

The sum of the interior angles of a quadrilateral = 360°

Subtract the sum of the 3 given angles from 360 for fourth angle

fourth = 360° - ( 30 + 108 + 90)° = 360° - 228° = 132°

The fourth angle and x are adjacent angles and are supplementary, thus

x = 180° - 132° = 48°

5/20 so 25%

step-by-step explanation:

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)