Answer:
uhhhhhhhhhhh so sorry but i can't help
Only difference your example has 11 and here it's ten
screenshoot
Angles PTS and RTQ are vertical angles, so they are congruent.
Their measures are equal.
11(y - 10) = 4y - 5
11y - 110 = 4y - 5
7y = 105
y = 15
m<PTS = 11(y - 10) = 11(15 - 10) = 11(5) = 55
Since sin(2x)=2sinx cosx
2sin(2x)=
4sinxcosx=cosx
3 over 20 is the fraction in simplest form.