Answer:-3
Step-by-step explanation:
4^2=16, 1^3=1, (-3)^2=9
so
16-1+3=18/(3-9)
so 18/-6= -3
Answer:
Angle of Depression and Angle of Elevation
One application of the trigonometric ratios is to find lengths that you cannot measure. Very frequently, angles of depression and elevation are used in these types of problems.
Angle of Depression: The angle measured down from the horizon or a horizontal line.
Angle of Elevation: The angle measured up from the horizon or a horizontal line.
What if you placed a ladder 10 feet from a haymow whose floor is 20 feet from the ground? How tall would the ladder need to be to reach the haymow's floor if it forms a 30∘ angle with the ground?
Answer:
Step-by-step explanation:
Refer the attached figure .
We are given a line AB
Point A
Point B
Formula for slope 'm' when two points are given :
Substituting thew values
Since we are given that AB is perpendicular to BC
So, By property - perpendicular slopes are negative reciprocals of each other.
So, Slope for line BC : 
Point B = (4,4)
Formula of equation of line : 
Hence the equation of line BC :
Find the sum or product of what?
