Answer:
x = 5
Step-by-step explanation:
Applying Pythagoras' identity to the right triangle
x² + 12² = 13²
x² + 144 = 169 ( subtract 144 from both sides )
x² = 25 ( take the square root of both sides )
x =
= 5
Answer:
1/2
Step-by-step explanation:
The formula for slope is 
9-6=3
8-2=6
3/6=1/2
Answer:
#1
Step-by-step explanation:
-10 + 4 i
Answer:
24
Step-by-step explanation:
Plugin the value of x and y
8[x + y] = 8*[5 - 2]
= 8 *3
= 24