ARIANA

Pu-239 has a half-life of 24110 y. If 1.00 kg of this isotope is present in the used fuel rods of a nuclear power plant approximately how long will it take for this amount of Pu-239 to decay until there is less than 1 mg left ? Please help. I do not know...

SOLVE BY FACTORING...THANK YOU 2X^3 - 5X^2 - 3X=0

solve by factoring (i know they are are divisible by 14, but I'm stuck) Thank you 210x^3 + 266x^2 + 14x - 42 = 0

solve the polynomial by factoring (I know i can factor out 3x^3, but again idk what to do after that) thanks a bunch! -12x^5 -15x^4 + 21x^3=0

Which of the following lists all of the roots of X^5 - 3x^4 + 3x^3 - x^2 =0 Why is the answer ( 0, 1) your answer was this: x^5 - 3x^4 + 3x^3 - x^2 = x^2(x^3-3x^2+3x-1) = x^2(x-1)^3 but i dont get the last part..(= x^2(x-1)^3)

solve the polynomial equation by finding all real roots thanks again x^3 + 6x^2 + 9x + 2 = 0

identify the number of zeros ....thank you 2x^4-250x=0

oobleck thank you for trying to help me, but I don't get this (algebra) at all. It really is like Chinese to me. I have been studying using your help for hours and hours and I am so lost! When I ask the teacher she explains it the same way every time. I j...