An architect is designing a water fountain for a park she uses the given function to model the water jets flowing from the fountain nozzles where HX gives the height of the water jet in feet X feet from its starting point select two adjacent columns that show an interval with an average rate of change of -0.3

  columns with x=12, x=14

Step-by-step explanation:

The average rate of change is given by ...

  (h(x2) -h(x1))/(x2 -x1)

We want this to be -0.3. We observe that adjacent columns have x2-x1 = 2, so we want ...

  -0.3 = (h(x2) -h(x1))/2

  -0.6 = h(x2) -h(x1)

  h(x2) = h(x1) - 0.6

The two columns that have this relationship are shown below.

q1 a person or thing situated away or detached from the main body or system. a cluster is a a mash of many things.

q2 do

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.