Answer:
12.686cm
Step-by-step explanation:
By using pythagoras, we can find CB.
We know that 
Therefore, 
(it has to be positive since it is distance)
now we look at triangle BCD and use SOH CAH TOA.

Answer:
21.56 m
Step-by-step explanation:
2(3.28) + 2(7.5)
(twos represent the sides)
6.56 + 15
= 21.56 m
Answer:
"A" would be positive 2/ no, it is not because the opposite of 2 is -2
Step-by-step explanation:
negative and a negative is a positive
Answer:
1 is 3 and 2 is y 2/1x
Step-by-step explanation:
if you do not understand 2 then here is a explanation you find slope so take any two point then go over then up the amount over is on the bottom and the amount up on top then simplify if needed