04/21/13

A right rectangular prism has a total surface are of 512. If all of the edges are congruent, find the length of one of them
Help! I don't know how to start!
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03/19/13

When 5g of a noneelectrolyte is added to 25g of water, the new freezing point is -2.5 C. What is the molecular mass of the unknown compound?
How do I start this problem?
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02/24/13

Cirlce P is tangent to each side of ABCD. AB= 20, BC=11, and DC= 14. Let AQ= x and find AD
helppppppppppppppppp :(
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02/24/13

AB and AC are tangents to circle O, and OC= 5X. find OC.
AB= 14+4X AC= 19-6x Making clear OC is just the radius its not the whole diameter. Help me please! I don't know what to do after I make equal the two tangents (I know they are congruent) so I... more
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02/16/13

two boats leave the harbor at 9:00 am. Boat A sails north at 20 km/hr. Boat B sails west at 15km/hr. 158, How far apart are the two boats at noon?
two boats leave the harbor at 9:00 am. Boat A sails north at 20 km/hr. Boat B sails west at 15km/hr. 158, How far apart are the two boats at noon?        helpppp
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