Need some mates tania has 6 tiles with pictures of plants and 3 tiles with pictures of animals. tania keeps all the tiles on a mat with the pictures hidden and mixes them up. she then turns one tile face up and finds the picture of a plant on it. she removes this tile from the mat and turns over another tile without looking. what is the probability that the second tile that tania turns over has a plant on it? 33.3% 50.0% 62.5% 66.7%

62.5

Step-by-step explanation:

At first, Tania had 6 tiles with pictures of plants and 3 tiles with pictures of animals. However, she found a tile that had a picture of plants, meaning that there are now only 5 tiles with pictures of plants left.

Since there are now 5 tiles with pictures of plants and 3 tiles with pictures of animals, the probability of picking a tile with pictures of plants has changed. There are now 8 total tiles and 5 tiles with pictures of plants. This means that there is a chance that she will pick a tile with pictures of plants. In terms of percentage, this would be a 62.5% chance.

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.