If you are standing 300ft from a building and the building is 200 ft tall, what is the angle of elevation formed with the ground
when you look up and see the top of the building.
Plz help me out
Plz help me out
1 answer:
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Answer:
.
Step-by-step explanation:
Start by finding the slope of this line.
If a slanting line goes through and
, where
, the slope of this line would be:
.
The line in this question goes through and
. Hence, the slope of this line would be:
.
If a slanting line with a slope of and goes through the point
, the equation of this line in the point-slope form would be:
.
For the line in this question, the slope is . Take
as the chosen point on this line. The point-slope form equation of this line would be:
.
Rewrite to obtain the equation of this line in the slope-intercept form:
.
Answer:
y = - 4x + 3
Step-by-step explanation:
The perpendicular bisector is positioned at the midpoint of AB at right angles.
We require to find the midpoint and slope m of AB
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = A(3, 8) and (x₂, y₂ ) = B(- 5, 6)
m = =
=
Given a line with slope m then the slope of a line perpendicular to it is
= -
= -
= - 4
mid point = [0.5(x₁ + x₂ ), 0.5(y₁ + y₂ ) ]
Using the coordinates of A and B, then
midpoint AB = [0.5(3 - 5), 0.5(8 + 6) ] = (- 1, 7 )
Equation of perpendicular in slope- intercept form
y = mx + c ( m is the slope and c the y- intercept )
with m = - 4
y = - 4x + c ← is the partial equation
To find c substitute (- 1, 7) into the partial equation
Using (- 1, 7), then
7 = 4 + c ⇒ c = 7 - 4 = 3
y = - 4x + 3 ← equation of perpendicular bisector
Step-by-step explanation:
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