Question

can anyone check my answer?

Answer 1

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?


25.5°

64.5°

28.4° <--- my answer

61.6°

Answer 2

cos x = 17.8/37.4

Answer 3

i know that part i'm just not sure if my answer is correct @IrishBoy123

Answer 4

i get a different answer. thus, if we agree on the method, maybe you just need to run yours through your calculator again.

Answer 5

idk how to do it in my caalculator so i think that's why i'm getting it wrong

Answer 6

You should use the inverse function of cossine.
\[x=arccos\left(\frac{17.8}{37.4}\right)\]
\[\boxed{\boxed{\therefore~x=61.6^o}}\]

Answer 7

thatnk you co much i appreciate your help @D3xt3R

Answer 8

can you check the rest of mine i got more and i did them just no sure if my answer is correct @D3xt3R

Answer 9

Sure.

Answer 10

Two ropes, AD and BD, are tied to a peg on the ground at point D. The other ends of the ropes are tied to points A and B on a flagpole as shown below.

Angle ADC measures 60° and angle BDC measures 30°. What is the distance between the points A and B on the flagpole?

Answer 11

i got 20

Answer 12

It's right

Answer 13

thank you

Answer 14

The picture shows a barn door.



What is the length of the support AB?

Answer 15

\[6\sqrt{3}~ft\]

Answer 16

9 by tan 60 degrees

9 sin 60°

9 cos 60°

9 by sin 60

these are the answer choices if it helps

Answer 17

\[9*sin(60^o)\]

Answer 18

so b?

Answer 19

its D

Answer 20

lol i had already done it and i meant D and accidently said b but i got it right thank you thought @laurisve