Answer:
The correct option is D.
Step-by-step explanation:
The given expression is

Difference of two squares property:

Using the above property, the given expression can be written as

Applying square we get


Therefore the correct option is D.
Cos = adjacent over hypotenuse
cos33 = b/170
170cos33 = b
b = 142.574 inches
Answer:
GD = 5/2 sqrt 2 = 2½ sqrt 2
EG = 5/2 sqrt 6 = 2½ sqrt 6
here you go :
6.5 c = 52 fl oz
hope i helped :-)