we are given
To find x-intercept means we have to find zeros
and for finding zeros , we will use quadratic formula
and we have it has two x-intercepts
so, it's discriminant must be greater than 0
so, we will find discriminant
now, we can compare with
and then we can find a , b and c
now, we can find D
It has two x-intercepts
so,
now, we can solve for m
............Answer
Answer:
The correct option is A. The height of tree is 60 ft.
Step-by-step explanation:
From the given figure it is noticed that the building is creating a right angle triangle from a point and the tree divides the hypotenuse and base in two equal part.
According to midpoint theorem of triangle: In a triangle, if a line segment connecting the midpoints of two sides, then the line is parallel to third side. The length of line segment is half of the length of third side.
Using midpoint theorem of triangle, we can say that the length of tree is half of the building.
Therefore correct option is A. The height of tree is 60 ft.
Answer:
% increase =
% decrease =
Step-by-step explanation:
Percentage Increase:
Let there be an original number. If it increased to a certain value we can calculate the percentage increase value with the help of following formula:
% increase =
Percentage Decrease:
Let there be an original number. If it decreases to a certain value we can calculate the percentage decrease with the help of following formula:
% decrease =
