Part i
Substituting,
Answer: -1
Part ii
I'm not sure that one's typed in correctly but I'll solve it as written.
We're not asked to simplify it so I wont. Substituting,
Answer: 59/306
Answer:
90 degrees
Step-by-step explanation:
The 1's value in that math problem is number 4 it is right before the decimal.
Answer:
PQ is perpendicular to RS
that is to mean:
PQ⊥RS
Step-by-step explanation: