Corey stepped back 59.71 feet to get a better view of the bird.
Explanation:
This is a right angled triangle. Let
be the angle of elevation.
Let the adjacent side of the triangle be x for the angle 
Let the opposite side of the triangle by y for the angle 
Thus,

Since, the height of the tree is 80 feet, 
To find the value of x, let us substitute
and 

Since, Corey moves back a few steps to gain a better view of the bird, the angle of elevation is 41°
Now, we shall find the x for
and 

To find how many feet Corey step back is to subtract the value of two adjacent sides, thus,

Thus, Corey stepped back 59.71 feet to get a better view of the bird.
Answer:
ok
Step-by-step explanation:
It takes him 15 minutes to run 5 laps.
3.14% of sailors are pi-rates.
You're welcome! <3 Lol
Answer:
converse of alternate exterior angle theorem
Step-by-step explanation:
um im not sure if i should explain the full proof but
Hello,
{x=y-3
{x+3y=13;
{x=y-3
{y-3+3y=13;
{x=y-3
{4y=13+3;
{x=y-3
{4y=16;
{x=y-3
{y=16:4=4;
{x=4-3=1
{y=4;
{x=1
{y=4
the solution to the system of equations is (1,4)
Bye :-)