Answer:
A) tan(45°) help us to find the height of the tree because it relates our unknown with a known length (the length of the shadow)
B) tan(45°) = x/35.6
C) x = 35.6 ft
Step-by-step explanation:
B) From definition:
tan(45°) = opposite/adjacent
opposite to angle 45° is x ( the height of the tree), adjacent to angle 45° is the length of the shadow (35.6 ft). Replacing into the equation:
tan(45°) = x/35.6
C) tan(45°) = 1
Then:
1 = x/35.6
35.6 ft = x
For the triangles to be congruent
x=y+5 .......(substitute in the second equation)
x+3=3y.........(y+5) + 3 = 3y , 2y = 8 ,
y = 4 , x = 9
3 hours
subtract the initial fee from the payment
$ 480 - $300 = $180
divide $180 by $60 = 3 hours
I got this as my answer maybe it will help
;-;
Step-by-step explanation:
