Csc 0 = r/y
r = sqrt 81 + 144
r = sqrt 225
r = 15
csc 0 = 15/12
Answer: obtuse
Step-by-step explanation:
Answer:

Step-by-step explanation:
The first trinomial is

Let the other trinomial be P.
Then

We make P the subject to obtain,

We simplify to obtain,

Hence the other trinomial is 
You should guess.e.g y=3 x=0 or y=5 x=3.
Answer:
45 cubes
Step-by-step explanation:
There are 10 cubes in each 1. so 10 x 4 = 40. 1/2 of 10 is 5 so 40+5 = 45.