100% = 145
-40%
60%= 145 x 0.6
It costs $87
Answer:
x=22/7 y=4/7 z=-3/7
Step-by-step explanation:
Answer:
Work:
x^2 + 4x - 4 = 8
x^2 +4x -12 = 0
(x + 6) (x - 2) = 0
x = -6 and 2
Answer: first option
I hope this helps!
Step-by-step explanation:
did this on edge :)
hope this helps ~ xoxo ANGIEEE CRAZZZY :3
Answer:
Angles in a triangles add up to 180°
Respectively 1 : 2 : 3 is going to be 1 x , 2 x and 3 x so,
1 x + 2 x + 3 x = 180°
⇒ Simplify
6 x = 180°
⇒ Divide by 6 on both sides to isolate x
x = 30°
Since the ratio was 1 x : 2 x : 3 x and x is 30°,
30 : 60 : 90
And since there is a 90° angle, it is a right - angled triangle
