mildredelizam
09.12.2019 •
Mathematics
Find the discriminant of the equation
1.5m2 + m = -3.5
-4.25
0
22
-20
Solved
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Ответ:
1.5m² + m = -3.5
1.5m²+m+3.5=0
a = 1.5 b= 1 c= 3.5
the discriminant d= b²-4ac = 1²-4(1.5)(3.5)= -20
Ответ:
x = 16°, y = 116°
Step-by-step explanation:
Angles inside a U-shape add up to 180°.
Hence (6x + 20)° + (4x)° = 180°
10x = 160°
x = 16°
Since the slanted sides of the trapezium are equal, y is equal to (6x + 20).
(6x + 20)° = (6(16) + 20)° = 116° = y