-3 and 4......................
Answer: mutiply x by itself to get y
Step-by-step explanation:
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.

1.6 divided by x =4
we can exchange the 4 and the x
1.6 divided by 4 =x
.4 =x
10512 is the answer since you just move the decimal place over to the right three times.