What is the seventh term in the following sequence? 81, 27, 9, 3, 1
Help pls

Step-by-step explanation:

Probability & sets > Venn diagrams & advanced probability > 383 - Venn diagrams for

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© In a group of 36 pupils, 6 play the flute only.

6 play the piano only.

13 play neither instrument.

A student is selected at random.

What is the probability the student plays both instruments?

7

8

9

q

w

e

-3

Step-by-step explanation:

i am unable to solve this problem

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.