Answer:
1) 2m + 3m2 - 4m=7
7) 3m2 – 2m + 4m= 11
8) 20 + 109 + 39 - 4= 164
3) 2m + 4m - 3m2= -3
9) 4xy + x + 2xy= 0
4) 2y + 14x - 7x + 9y= 18
10) 6m2 - 6m - 9m2= -51
Step-by-step explanation:
The points I chose and their connection are shown in the attached graph.
Height of the tree is 87 ft
Step-by-step explanation:
- Step 1: Find the height of the tree using trigonometric ratio tan.
Angle = 44°, adjacent side = 90 ft
⇒ tan 44° = opposite side/adjacent side
∴ Opposite Side = adjacent side × tan 44°
= 90 × 0.97
= 86.91 ft ≈ 87 ft
⇒ Height of the tree is 87 ft
