Which of the segments below is a secant?
a. ab
b. ad
c. de
d. ob

B. AD

Step-by-step explanation:

A secant is a which intersects a circle at exactly two different points and leaves a chord on joining those two points.

A chord is a line which which terminates on the two different points on the circle.

Radius is the line joining the center to any of the point on the  circle.

Tangent is a line which crosses from the outer periphery of the circle touching at any of its one point.

Thus the secant in the given diagram is clearly none other than .

Its ad

Step-by-step explanation:

IT just makes sense

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.