14. in δabc, j is on ab, k is on bc, and jk║ac. solve for x if jb = 5, aj = 17, bk = x+4, and kc = 5x.

the correct answer is the second option

option (b) is correct

step-by-step explanation:

to find the solution of this system, we need to convert it into reduced row-echelon form. we have,

after applying row operations r2 -> r2/2 and r3 -> r3/3, we get,

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

#12 the answer is the third option