Aradio tower is centered at (6,-16) on a coordinate grid where each unit represents 1 mile the radio signals range is 80 miles write a standard equation that describes the position and range of the tower

Step-by-step explanation:

we know that

The equation of a circle in standard form is equal to

In this problem we have

The center of the radio tower (position) is the point

The radius of the radio tower (range) is

substitute

5 x 14?

im new, sorry if this is wrong.

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.