Scenario: if the distance from person to the base of tree is 70 ft and the tree is 115 ft tall, how much does the person look up to see the top of the tree (i. e. find the angle of elevation)? note: you need to draw the triangle to figure out the layout on your own for this problem.

Step-by-step explanation:

Alright, lets get started.

Please refer the diagram I have attached.

This is a right angle triangle.

Suppose the angle from person to top of the tree is x

Using SOH CAH TOA

Tan x =

Tan x =

Tan x  = 1.6428

taking tan inverse

x = 58.67 degrees

Means the person need to look up 58.67 degrees.   :   Answer

Hope it will help :)

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation:

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)