Question

please help

Answer 1

\(\tan \theta = 0.8\)

In this case you need to use the inverse tangent function.

\(\theta = \tan^{-1} 0.8\)

This can be done in a calculator.

Answer 2

hmm it won't let me plug it into my calculator like that

Answer 3

http://www.wolframalpha.com/input/?i=arctan%288+degrees%29

Answer 4

haven't used a calculator to do anything but add since maybe 2003
use your computer

Answer 5

still a bit lost :/

Answer 6

Do you have a calculator?

Answer 7

did you see what i typed in?

Answer 8

you want the number whose tangent is \(.8\)
you have no way of knowing this without using a calculator
take the inverse tangent of \(.8\)
the inverse tangent is called "arc tangent' and written as \(\tan^{-1}(x)\)
in this case you want \(\tan^{-1}(.8)\) the number whose tangent is \(.8\)

Answer 9

as i said, you won't know it without a calculator or a computer
if you are using a calculator, you probably hit "shift" then "tan" then ".8" but it depends on the calculator

Answer 10

haha it still won't let me

Answer 11

What type calculator do you have?

Answer 12

a texas instrument

Answer 13

i came up with 53.1

Answer 14

I think that for that calculator, you write 2nd tan first, to get tan^-1. Then enter the value 0.8. Then press enter.

Answer 15

I don't get that value.

Answer 16

http://www.wolframalpha.com/input/?i=arctan%280.8%29

Answer 17

aha i see where i went wrong now thank you!

Answer 18

wlcm