In ARST, the measure of T=90°, ST = 7.7 feet, and RS = 9.7 feet. Find the measure of R to the nearest degree.
9.7
7.7
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T
R

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53

Step-by-step explanation:

53

Step-by-step explanation:

is there any photos or whatever?

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.