402 rounded to the nearest ten

That would be 400.

Hope that helps :)

It is 400, since when you are rounding to the nearest ten you look at the ones digit. If the ones digit is smaller than 4 you round down

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 *_*