Answer:
$3.60.
Step-by-step explanation:
4.5 = x + 20% of x
4.5 = x + 0.2x
1.2x = 4.5
x = 3.75
Answer:
cos (A+B+C)
Step-by-step explanation:
as A,B,C, are triangle we have A,B and C as 180
cost
If u separate these into 2 triangles then they will become 90 degree triangles so angle a=angle c.
Answer:
(-1,9)
Step-by-step explanation:
coortinate point is (-9,-1)
use formula
(x,y)=(y,-x)
(-9,-1)=(-1,9)