Answer:
The tree is 20.6 ft tall.
Step-by-step explanation:
Please check the attached graph.
From the diagram, it is clear that John is 5 ft tall is standing 20 feet away from a tree, making an angle of elevation to be 38⁰.
The diagram makes a right-angled triangle.
- Given the angle = Ф = 38⁰
- Hypotenuse = Tree length = c ?
Pythagorean Theorem:
For a right-angled triangle, with sides 'a' and 'b', the hypotenuse 'c' is defined as:

substituting a=5, b=20


ft
Thus, the tree is 20.6 ft tall.
Answer:
are zeroes of given quadratic equation.
Step-by-step explanation:
We have been a quadratic equation:

We need to find the zeroes of quadratic equation
We have a formula to find zeroes of a quadratic equation:

General form of quadratic equation is 
On comparing general equation with b given equation we get
a=2,b=-10,c=-3
On substituting the values in formula we get


Now substituting D in
we get




Therefore, 
14 / 3.5 = 4.....4 tablets should be administered
as the product of 90 degrees and 20 degrees
30x60=1800
90x20=1800
Answer:
B
Step-by-step explanation: