Respuesta :

hplax

Answer:

15 Units I think..?????

chibabykalu16

Answer:

x = 15units

Solving steps:

  • QS = QT + ST

QS = 16 + 9

QS = 25

  • QSR = RST

Cos(QSR) = RS/QS

Cos(QSR) = x/25

Cos(RST) = ST/RS

[tex] \frac{x}{25} = \frac{9}{x} [/tex]

=> [tex]x {}^{2} = 225[/tex]

=> [tex]x = \sqrt{225} [/tex]

=> x = 15