Answer:




Step-by-step explanation:
Solving
using the distributive property:


Subtract 0.8 from both sides


Divide both sides by -0.2


Answer:
13.5
Step-by-step explanation:
Using sine rule
Tan25 = AC/AB = AC/29
AC = 29 × Tan 25 = 29 × 0.45 = 13.5229220865
Subtract 1/9 - 9 to isolate the x term on the left side
4x²-5=3x+4
4x²-3x-9=0
x=(3±√((-3)²-4*4*-9))/2*4
x=3±√(9+144) /8
x=(3±√153) /8
x=⅜±√153/8