The table below gives the typical number of days of rainfall in Spring and Fall in Death Valley, California.

Spring (Event S)

Fall (Event F)

Rain (Event R) 7 6
No Rain or Dry (Event D) 115 116

On average, what is the approximate percent chance of rainfall on a given day in Spring or Fall in Death Valley.
Show your work.

5.3% is the answer i believe

13 divided by the total number of days (246) which you get by adding 7,6,115 and 116 together = 0.52something which rounds to 5.3

Step-by-step explanation:

any options?

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.