I^2 = (sqrt-1)^2 then the square cancels out so the answer is just
-1
Answer:
the first one from the top
Answer:
24
Step-by-step explanation:
just multiply 2 on both sides
Answer:
The angle corresponding to angle 4 is angle 8
Answer:
x = 15°
y = 59°
Step-by-step explanation:
Angles at a right angle add up to 90°
41 + y = 90
y = 90 - 41
y = 59°
Angles in a triangle add up to 180°
41 + (2x - 9) + 7x + 13 = 180
41 + 13 - 9 + 2x + 7x = 180
45 + 9x = 180
9x = 180 - 45
9x = 135
x = 135/9
x = 15°
