So x willl equal to 6 because 5(2x-8) is 10x-40=20 then you add 40 to 40 wich will equal nothing . u gonna have to eliminate 40 then you 40 to 20, wich is 60 what you gonna need to do is 10x=60
__ __ 60/10 is 6
10 10
Answer:
angle of elevation will be 
Step-by-step explanation:
Given,
height of tower = 150 ft
height of tower = 1200 ft
So, total height of peak of tower = 1200 + 150
= 1350 ft
distance of user from cell tower = 5 miles
= 5 x 5280 feet
= 26,400 feet
Since the height of user from sea level = 400 ft
so, height of peak of tower with respect to user = 1350 - 400 ft
= 950 ft
If the angle of depression is assumed as
, then we can write




So, the angle of elevation will be 
ANSWER:
∠1 = ∠4 (Vertically opposite angle).
∠1 = ∠5 (Corresponding angle).
∠1 = ∠8 (Alternate exterior angle).
So, ∠4 , ∠5 and ∠8 are congruent to ∠1.
The answer would be 11/2.
2d = 5 + 6 (add 6 to both sides)
2d = 11 (simplify 5 + 6 to 11)
d = 11/2 (divide both sides by 2)
Decimal form is 5.5.