A pole that is 3.3 m tall casts a shadow that is 1.29 m long. At the same time, a nearby tower casts a shadow that is 36.75 m lo
ng. How tall is the tower?
1 answer:
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Your formula for this is 
and 
. Get everything on one side of the equals sign, set it equal to 0 and factor. When you do this you get (x-3)(x+27). The Zero Product Property rule tells us that either x-3 = 0 or x+27 = 0 and that x = 3 and -27. The only thing in math that will NEVER be negative besides time is distance/length, therefore, x cannot be 27 and has to be 3.