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Explain the safety procedures for: 1. Using a propane or butane/propane stove 2. Using a liquid fuel stove 3. Proper storage of extra fuel

Look at the figure below: triangle abc is a right triangle with angle abc equal to 90 degrees. the length of ac is 5 units and the length of ab is 4 units. d is a point above c. triangle adc is a right triangle with angle dac equal to 90 degrees and dc parallel to ab. what is the length, in units, of segment cd?

Iam at home. /: i am playing video games. translate the following statement into symbolic form.

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?