Question

help on 17-21 pic attached!!

Answer 1

what do you think for 17

Answer 2

umm i dont know whgat to think

Answer 3

tan is equal to sin/cos, we know this because that is the definition of tan. correct?

Answer 4

yess

Answer 5

that is your answer, you can just cite the definition

Answer 6

ohh okay so if tan=sine/cos, that means cos=tan/sine

Answer 7

waitt i said number 17

Answer 8

it says give ur answer in feet nd inches

Answer 9

opps
hold on

Answer 10

oki dok

Answer 11

hsve you done the law of cosine

Answer 12

have

Answer 13

noo

Answer 14

ok

Answer 15

hello

Answer 16

umm... at this point i really dont know what to do...
i got that cos=adj/hyp= (15)/(x+1), but i am not sure what you would set that equal to. sorry