Madelina has a bag of colored cubes. She has 16 red cubes, 4 blue cubes, 8 green cubes, and 20 yellow cubes. She adds 4 red cubes to the bag. How many of each of the other colors would she need to add to keep the probability of randomly selecting 1 cube of each color the same as it was before she added the cubes? Justify your response.

i dont know i just need points

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step-by-step explanation:

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step-by-step explanation:

solution:

the given function is ,

      =

the three roots of this quadratic function is , 0 ,8 and 10.all the roots are real and rational.

if a quadratic equation is of the form ,

sum of the roots = a + b +c= 0+8+10=18=  

product of roots taken two at a time = a b + b c+ c a = 0+80+0=80 =  

product of roots = a b c = 0=  

there are 11 doors in a hall starting from 0 to 11.the entry in the hall is permitted through gate number 0 and exit is allowed through only gate number 8 and 10.so, three roots(0,8,10) of quadratic function is given by entry and exit route of this hall.