Hello,
if 2x²=54 then (2x)²=4x²=2*2x=2*54=108
Answer:
h = 14
Step-by-step explanation:
9=h-5
9 + 5 = h -5 +5
14 = h
Above means positive
Below means negative
New Orleans is 7 feet 'Below", so elevation is -7 ft.
Remmeber you can do anything to an equaiton as long as you do it to btoh sides
5-6(a+2)=7+a
distribute
5-6a-12=7+a
add like terms
-6a-7=7+a
add 6a both sides
-7=7+7a
minus 7 both sides
-14=7a
divide by 7
-2=a
a=-2
