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I got this much so far, is it right?
u=sqrt. 2^2+-4^2 v=sqrt.3^2+-8^2
u=4.5 v=8.5
dot=38.25

look at your dot again

isnt dot multiplying u and v?

2x3 + (-4)x(-8)

=?

so 38?

yes

okay and now what do i do?

\(\large cos \theta = \frac{\vec u \bullet \vec v}{|\vec u||\vec v|} \)

find arccos
use calculator!

Im so confused lol what do I put for cos theta= like what goes in the u and v?

.9934640523
arccos=6.55

I got .9945054529

What how do I find theta again?

.1023736009

the issue here might be calculator
this is what mine looks like and it is a fairly basic one

Yeah whoa accuracy haha yeah my calculator doesn't read what yours reads I wonder why

thank you so much can you help me in a last question though?

sure
but make a new thread for each quetsion

okie dokie!