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anonymous
 one year ago
The angle of depression from the top of the tree to the tip of the shadow is 25°. Find the height of the tree to the nearest tenth.
a.
16.8 feet
b.
18.2 feet
c.
23.4 feet
d.
39.7 feet
anonymous
 one year ago
The angle of depression from the top of the tree to the tip of the shadow is 25°. Find the height of the tree to the nearest tenth. a. 16.8 feet b. 18.2 feet c. 23.4 feet d. 39.7 feet

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freckles
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437363564659:dw just use the tangent ratio

freckles
 one year ago
Best ResponseYou've already chosen the best response.1though that is the angle of elevation not angle of depression

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0how do i solve it what equation

freckles
 one year ago
Best ResponseYou've already chosen the best response.1alpha is the angle of elevation which is 25 deg recall tan is opp divided by adjacent

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0which one is adjacent

freckles
 one year ago
Best ResponseYou've already chosen the best response.1since it does say angle of depression I wonder if it is talking about this angle being 25 degdw:1437363976910:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437364051842:dw but that still makes that one angle 25 deg

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0so what do i divide by

freckles
 one year ago
Best ResponseYou've already chosen the best response.1you just do \[\tan(25)=\frac{\text{ opp side of the angle with measurement } 25 \deg}{ \text{ adj side of the angle with measurement } 25 \deg}\]

freckles
 one year ago
Best ResponseYou've already chosen the best response.1the opp side is what I called h in the picture

freckles
 one year ago
Best ResponseYou've already chosen the best response.1anyways let me know if you need further help

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i dont know what the measurement is

freckles
 one year ago
Best ResponseYou've already chosen the best response.1h is what you are solving for

freckles
 one year ago
Best ResponseYou've already chosen the best response.1remember h is the height of the tree

freckles
 one year ago
Best ResponseYou've already chosen the best response.1that is what you are solving the equation for

freckles
 one year ago
Best ResponseYou've already chosen the best response.1you are given the adjacent side the side that touches the angle (and no adjacent side is not the hyp)

freckles
 one year ago
Best ResponseYou've already chosen the best response.1dw:1437364301549:dw

freckles
 one year ago
Best ResponseYou've already chosen the best response.1pluggin those numbers into equation I gave

freckles
 one year ago
Best ResponseYou've already chosen the best response.1then just solving it for h and then bingo you are done

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0use the equation given above by @freckles

freckles
 one year ago
Best ResponseYou've already chosen the best response.1\[\tan(25)=\frac{\text{ opp side of the angle with measurement } 25 \deg}{ \text{ adj side of the angle with measurement } 25 \deg} \\ \tan(25)=\frac{h}{36}\] notice I just put what I called the opp where I said opp side notice I just put what I called the adjacent measurement for the adjacent side can you solve the equation?

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0dw:1437364501206:dw

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i didnt get anything yet

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what i got 900. i know that isnt right

freckles
 one year ago
Best ResponseYou've already chosen the best response.1ok @GEOMETRYHELP10011 do you know how to do tan(25) in your calculator ?

freckles
 one year ago
Best ResponseYou've already chosen the best response.1oh that could be a big problem for solving the equation

freckles
 one year ago
Best ResponseYou've already chosen the best response.1because it does require you to type tan(25) in your calculator

freckles
 one year ago
Best ResponseYou've already chosen the best response.1you should see a button with tan on it

freckles
 one year ago
Best ResponseYou've already chosen the best response.1you should see it next to things like sin and cos

freckles
 one year ago
Best ResponseYou've already chosen the best response.1if you can't find them tell me the name of your calculator and I can tell you where it is

freckles
 one year ago
Best ResponseYou've already chosen the best response.1that is what I and @triciaal also got

triciaal
 one year ago
Best ResponseYou've already chosen the best response.0to round to the nearest tenth solve to 2 decimals you have 16.78 then look at the 2nd place if 5 or more add 1 to the digit before 8 is more than 5 so you round to 16.8 if the 2nd digit was less than 5 then you would drop it and round to 16.7
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