Aparticular train is 25 feet tall. a model of the train was built with a scale of 4 inches which is equal to 5 feet. how tall is the model?

The answer is 20in. You multiply 4 by 5 because 5x5 is 25 so the answer is 20

Answer to your question: a. the fundamental theorem of algebra tells you that the equation will have two complex roots since the degree of the polynomial is 2. the roots are ​ x=1±i7√2 .number of roots=degree of polynomialhere, degree of polynomial is 2 so number of roots will be 2.hope it *_*