Answer:
x = 9
Step-by-step explanation:
(whole secant) x (external part) = (tangent)^2
(24+3) * 3 = x^2
27*3 = x^2
81 = x^2
Take the square root of each side
sqrt(81) = sqrt(x^2)
9 =x
Answer:
x = 12
Step-by-step explanation:
The ray from the vertex to the base is an angle bisector and divides the opposite side into segments that are proportional to the other 2 sides, that is
=
( cross- multiply )
3x = 36 ( divide both sides by 3 )
x = 12
For this case we have that by definition, the equation of a line of the slope-intersection form is given by:

Where:
m: It is the slope of the line
: It is a point through which the line passes.
We have to:

Thus, the equation is of the form:

We substitute the point 

Finally, the equation is:

Answer:


4(9) + 3s = 75
36 + 3s = 75
3s = 39
s = 13