Who am iPart A: We know that the equation for finding the area of a triangle is ; we also know that and , so the only thing we need to do is replacing those values into our Area equation and solve for x:

Now the only thing left is factor the quadratic polynomial:

W can conclude that the area of our triangle is

Part B: Our polynomial has three terms, so is a trinomial; also, our polynoal only has one variable, , and the largest exponent of that variable is 2; therefore is a degree 2 polynomial. In summary, we have a trinomial of degree 2.

Part C: Part A demonstrate the closure property of polynomials because after multiplying tow polynomials we obtained another polynomial.
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                                                        water

a colorless, transparent, odorless, tasteless liquid that forms the seas, lakes, rivers, and rain and is the basis of the fluids of living organisms.

                                                        halon  

any of a number of unreactive gaseous compounds of carbon with bromine and other halogens, used in fire extinguishers, but now known to damage the ozone layer.

                                                  dry chemical

extinguishing agent used on class a, class b, and class c fires.

                                                  carbon dioxide

a colorless, odorless gas produced by burning carbon and organic compounds and by respiration. it is naturally present in air (about 0.03 percent) and is absorbed by plants in photosynthesis.

the suction machine and tubing is the equipment that should be left behind and should be most easily accessible.