Find the exact degree angle for

Find an exact value for cos 2 22.5o – sin 2 22.5o.

___________ are modified epidermal cells which open and close for gas exchange/prevent water loss.   

(Double Angle Identities)

@X@user.full_name@X@ @GMU: Closed-tube manometers work exactly as barometers except by connecting them to a container its pressure can be measured. Assume you have a closed-ended manometer filled with an oil having a density of 0.7242 g/mL at 20°C rather than mercury (density = 13.546 g/mL at 20°C). What is the pressure if the height of the oil column is 1209.72 cm?

 Find an exact value for

Which type of stem is shown in this cross section? zea mays stem.jpg

Find the exact radian value of

Label E from the root model bellow root model.jpg

What is the correct format to show the scientific name of this dog