Answer: 21.21 cm
Step-by-step explanation:
Given
length of diagonal on the square is 30 cm
Suppose a is the side length of the square
and length of diagonal is given as 
So,

Thus, the side length of the square is 21.21 cm
Answer:
x=19.4
Step-by-step explanation:
4x+8+6x-22=180
10x-14=180
10x=194
x=19.4
Answer:
(6m)-8
Step-by-step explanation:
alegabra
It’s the second one x>_12 because it’s a closed circle on the number line and it’s going right
Answer:
Choice C: 
Step-by-step explanation:
To find your slope do:


that's how you get 1/2
4 is just the y-int.