A student claims that -9i is the only imaginary root of a quadratic polynomial equation that has real coefficients. a. what is the mistake in this claim?

b. right one possible factored polynomial that has the correct roots

c. write the factored polynomial from part b in standard form

It meand 4 ytjings so with that thatameksbitnhoe eve rnuch it is

The first one is correct

Planet earth has a mass of 5.9726x10²⁴ kg.then: 5.9726x10²⁴ kg=100% of the total earth mass.if the water´s mass=5x10-4 % of the total mass, we can solve this problem by the rule of three.5.9726x10²⁴ %*10⁻⁴ %x=(5.9726x10²³ kg)(5*10⁻⁴  %) / 100 %=2.9863x10¹⁹ kganswer:   the mass of the planet´s water would be   2.9863 x 10¹⁹ kg.