Answer: The tree was 27 feet tall
Step-by-step Explanation: First of all Sally was standing 30 feet away from the tree and she looks up at an angle of elevation of 38 degrees to the top of the tree. With this bit of information we can determine that a right angled triangle has been formed with the reference angle as 38 degrees, the side facing it as h (the height of the tree) and the adjacent side as 30. We shall apply the trigonometric ratio as follows;
Tan 38 = opposite/adjacent
Tan 38 = h/30
0.7813 = h/30
0.7813 x 30 = h
23.4 = h
We remember at this point that Sally’s eyes were 4 feet above the ground. What we have just calculated is the height of the tree from “4 feet above the ground” (where her eyes were). Hence the actual height of the tree is calculated as 23.4 plus 4 which gives us 27.4
Therefore the tree was 27 feet tall (approximately to the nearest foot)
Answer:
93.75 Kg
Step-by-step explanation:
Farmer spreads 25 kg fertilizer over an area of 4000 m square .
So, Over 1 m square , 
kg of fertilizer will be needed
As we know , 1 hectare = 10,000 m square.
So, 1.5 hectare equals 15,000 m square.
So, for 15,000 m square , Fertilizer needed will be equal to ×15,000 = 93.75 Kg
So, 93.75 Kg of fertilizer is needed for 1.5 ha of land.
Answer:
Equation: 
m
m
m
Step-by-step explanation:
The equation of the perimeter of this shape can be written as: (Sides with the same number of dashes are equal in length)
Which becomes:
Since AB = 
, we can substitute to get the length of AB:
We can also use substitution to solve for the length of EF:
Hope this helps :)
Input: 4, 6, 8
Output: 8, 10, 12
8-4 = 4
10-6 = 4
12 - 8 = 4
The rule is add 4 to the input.
The answer is A.
Answer:
It is 8.5 meters tall
Step-by-step explanation:
28.05 / 3.3 = 8.5
