Answer:
13
Step-by-step explanation:
We can consider the complex number 
as point with coordinates 
where 
is real part of the complex number and 
is an imaginary part of the complex number.
The distance between two complex numbers is exactly tha distance between two points corresponding to each number.
Now find the distance between A and B:
maybe i can i really dont know
Answer:
x = 32°
Step-by-step explanation:
Given:
Line AB║CD
Angle 1 = (2x + 15)°
Angle 4 = 101°
Find:
Value of x = ?
Computation:
We know that Angle 1 and Angle 4 stay on same line , so Angle 1 and Angle 4 are liner pair.
∴ Angle 1 and Angle 4 = 180°
⇒ (2x + 15)° + 101° = 180°
⇒ 2x + 116° = 180°
⇒ 2x = 180° - 116°
⇒ 2x = 64°
⇒ x = 32°
Therefore value of x 32°
The slope is equal to -4.
Hope this helps!
Answer:
28 cm²
Step-by-step explanation:
The area of Δ BDF is the area of the rectangle subtract the area of the 3 white triangles.
Since the area of the rectangle = 80 cm² and
area = length × breadth, then
breadth = 80 ÷ 10 = 8 cm
Thus CE = EF = 8 cm and CD = DE = BC = 4 cm
Area of Δ DEF = 0.5 × 10 × 4 = 20 cm²
Area of Δ ABF = 0.5 × 8 × (10 - 4) = 0.5 × 8 × 6 = 24 cm²
Area of Δ BCD = 0.5 × 4 × 4 = 8 cm²
Thus
area of Δ BDF = 80 - (20 + 24 + 8) = 80 - 52 = 28 cm²
