two birds sit at the top of two different trees 17.8 feet away from one another. The distance between the first bird and a bird watcher on the ground is 37.4 feet. What is the angle measure, or angle of depression, between this bird and the bird watcher?

- anonymous

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- anonymous

i asked this ? befor

- anonymous

r u in flvs

- anonymous

yess i am . do you know it?

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## More answers

- anonymous

holed on

- anonymous

allright :)

- anonymous

17.8

- anonymous

hold on

- anonymous

Height of bird = 17.8 True (slant) distance from watcher to bird = 37.4 Angle theta = asin(17.8/37.4=28.4 degree

- anonymous

dose that help

- anonymous

omg yes ! thank you :) did u pass this test? hah

- anonymous

ya i think

- anonymous

do u know how to give medles

- anonymous

i dont understand anything in it.

- anonymous

it can help

- anonymous

i only have like 4 more .

- anonymous

if u want just ask and i will

- anonymous

A lamppost casts a shadow 44 feet long. The angle measure of the shadow is 33°. How tall is the lamppost to the nearest tenth of a foot?

- anonymous

hold on

- anonymous

h/a

- anonymous

whats h/a ?

- anonymous

52.46

- Hero

|dw:1325123708432:dw|

- anonymous

it is COS

- anonymous

your like saving my life. haha can you answer one more ?

- anonymous

h is hypotenuse and a is adjacent

- anonymous

yes

- anonymous

Using ∡C of △CBA shown below, create three different trigonometric ratios using sine, cosine, and tangent. You will need to create your own angle and side measures for this task. For full credit, please provide both the ratio and work used to solve for a missing piece of the triangle. Round all solutions to the nearest hundredth.

- Hero

You can create your own triangle

- Hero

Actually, you should probably draw the triangle first

- anonymous

got to my profile and look for the same ? every thing is there

- anonymous

did it help

- Hero

I don't know why she didn't just draw the triangle

- Hero

In order to help you, you need to draw it

- anonymous

hahaha shush. idk how i would word it though. there was so much going on

- anonymous

press draw its under ur box to tipe in |dw:1325124389359:dw| like this

- Hero

|dw:1325124435420:dw|

- anonymous

|dw:1325124401522:dw|

- Hero

good job

- anonymous

|dw:1325124444889:dw|

- Hero

You could have made it look a little prettier than that sunset

- anonymous

its beautiful .. belongs in a museum

- anonymous

yes now 3^2 + 4^2 sholed = the other side

- Hero

Okay sunset :D

- anonymous

whats the three different trigonometric ratios using sine, cosine, and tangent?

- Hero

Well, if we use sunset's approach:

- anonymous

cos is a/h

- Hero

|dw:1325124890880:dw|

- anonymous

tan is o/a and sin is o/h

- anonymous

dont use the ABC ONES they change if the tryangle is BAC or CAB use what i put

- Hero

She has to use them because they are part of the problem. It has to be in terms of triangle CBA

- anonymous

no afince Hero but i tryed doing it that way and it mest me up

- Hero

It doesn't mess everyone up

- anonymous

ok but remember it dont always aply just with this problim

- anonymous

lol im so confused on this part here For full credit, please provide both the ratio and work used to solve for a missing piece of the triangle. what should i put for that ? it has to be in words

- Hero

tahtah, I know you're taking a test

- anonymous

ik you know im taking a test.

- anonymous

ok you have to fined the tangent , cosine, and sine

- Hero

You have to find the angles tahtah

- anonymous

sine is opposite/hypotenuse

- anonymous

cosine is adjacent/hypotenuse

- anonymous

how do i find the angles ? i understand the cos and sin thingy now.

- Hero

you have to take the inverse of the ratios

- anonymous

tangent is opposite/adjacent

- anonymous

u fined the angles using sin cos and tan

- Hero

sunset, she has to take the inverse of those ratios

- anonymous

yes my bad but its still using it

- Hero

\[\sin^{-1}(\frac{3}{5})\]

- anonymous

yes

- Hero

\[\cos^{-1}(\frac{4}{5})\]

- Hero

\[\tan^{-1}(\frac{3}{4})\]

- anonymous

trust hero hes smart

- anonymous

thank you :) your smart too sunset.

- anonymous

thank u good luck

- anonymous

so i just solve that & it will be the angle?

- Hero

You have to find the other two angles

- Hero

Once you find angle A, you can use the sums of triangles = 180 rule to find the remaining angle.

- anonymous

mmm would it be .64?

- Hero

make sure you're in DEGREES, not radians

- anonymous

ahhh . so 64 degrees? haha

- Hero

Just make sure your calculator is in degrees first.

- anonymous

omg now i got .92 ik thats wrong. i see why my teachers hate me

- Hero

:/

- anonymous

if you just get me the angle for A i can do the rest.

- Hero

A = 36.87

- anonymous

saved me. thanks so much man : )

- Hero

You should probably figure out how to use your calc. You're lucky you get to do your test at home. Not every student is so lucky.

- anonymous

i know :| geo. just isnt my thing

- Hero

It could be if you wanted it to be

- anonymous

hold on, where's the answer for the original equation?

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