Answer:
90° + (γ/2)
Step-by-step explanation:
The angles in ΔADB have a sum of 180°, so ...
(A/2) +(B/2) + ∠ADB = 180°
and so do the angles of ΔABC:
A + B + γ = 180°
Dividing this second equation by 2 gives an expression for (A/2) +(B/2) that we can substitute into the first equation:
A/2 +B/2 +γ/2 = 90°
A/2 +B/2 = 90° -γ/2
Putting this in the first equation, we have ...
(90° -γ/2) + ∠ADB = 180°
∠ADB = 90° +γ/2 . . . . . . . . . . add (γ/2 -90°)
It is more appropriate to round to the nearest tenth inch because inches are normally whole numbers and when you are rounding off inches, you want to make sure that your answer is as simplified as possible so it is easier to calculate in the long run.
Plant B is the most proportional because 18+18+18=54 and plant A described 18+18+20 so plant b grew exactly 18 inches per week which is proportional but plant A did not grow proportionally so The situation that presents a proportional relationship between the plants height and number of weeks would be plant B
Answer:Hope this helps!
Number 1 = 2 and 1/8
Number 2 = 6 and 3/40
Number 5 = 4 and 2/6
Number 6 = 15 and 1/3
Step-by-step explanation:
