Answer:
ADB and DBC
Step-by-step explanation:
Angles ADB and DBC are both marked with three curved lines which shows that their angles are congruent to each other.
Hope this helps! :)
x = 3
2x + y - z = 3 → (1)
- x + y + 2z = 0 → (2)
3x + 2y + z = 9 → (3)
we require to eliminate the y and z terms from the equations
(1) + (3) : 5x + 3y = 12 → (4)
multiply (1) by 2
4x +2y - 2z = 6 → (5)
(2) + (5) : 3x + 3y = 6 → (6)
(4) - (6) : 2x = 6 ⇒ x = 3
Answer:
-22
Step-by-step explanation:
Each line is worth 3 units
-10 - (-16) = 6 units between and there are 2 spaces
6/2 = 3
We are going down so it is negative
-16 -3 =-19
then the dot is on the next line
-19 -3 = -22
Equation a^2 + b^2 = c^2
c = longest side, unknown
The answer is D.
12^2 + 10^2 = c^2
