<span>calcium hydride + water → calcium hydroxide + hydrogen</span>
The zero is 4 because of the first one is the best one and to do it right it is 4
Rectangle:
A = BH
= (18)(4)
= 72
Finding area of square:
72 = 2x
/2 /2
36 = x
Finding perimeter of square using area:
P = √a * 4
= √36 * 4
= 6 * 4
= 24
Therefore the perimeter of the square is 24 inches. I am not sure so sorry for any mistakes.
Answer:
76
Step-by-step explanation:
76? hope this helps:)
