Answer:
∠ABD = 32
Step-by-step explanation:
Since ∠ABC is the total angle, subtract ∠DBC from ∠ABC to get ∠ABD.
145 - 113 = 32
Answer:
84°
Step-by-step explanation:
angles in a quadrilateral add to 360°. 360-(114+76)=5x =170°. 170°/5 = 32°. x=32°
angles on a straight line add to 180°.
2x = 64°. 180-64=116°. y=116°.
y-x = 116-32 = 84°
Step-by-step explanation:
- You would eliminate the terms with the y variables.
- You would use addition because you are trying to eliminate y to find the value of x.
Given parameters:
Quadratic expression:
x² - 6x + 7 = 0
Solve using quadratic formula;
x = 
From the equation;
a = 1, b = -6 and c = 7
Input the parameters and solve;
x = 
x = 
x = 
x =
or 
x = 7 or -1