Question

URGANT PLEASE HELP!!

Solve the triangle for x. (1 point)

A) 41.8°
B) 89.6°
C) 48.6°
D) 90.4°

Answer 1

Answer:

it looks like c

Step-by-step explanation:

its not quite 50 but its extreemly close so its got to be c

Answer 2

$12 {}^{2} = 9 {}^{2} + 8 {}^{2} - 2(9)(8)(cosx)$

$144 = 81 + 64 - 2(72)(cosx)$

$144 = 145 - 144(cosx)$

$- 144(cosx) = 144 - 145$

$(cosx) = \frac{ - 1}{ - 144}$

$arccos( \frac{1}{144} ) = > a = 89.6$