Answer:
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
If AB is tangent to circle O at point A
then
AB is perpendicular to AO (radius) and Triangle ABO is a right triangle
so
----> by complementary angles in a right triangle
substitute the given value
Answer:
Rise is a vertical line from 0 to 4
Run is a horizontal line from 0 to 4
Slope of a line is called the gradient.
Additional information:
Gradient =rise/run
= 4/4
= 1
Y=mx +c
Y=1x +4
Y= x+4
But the slope show a negative correlation, so gradient will be negative & it's y = - x + 4.
BTW the rise and run could also be from 4 on the y-axis and down to the 4 on the x-axis.
So, there is two possible triangles you could make.
As a result, the rise is a straight line going up or down ( vertical ) and the run is a straight line going across from left to right (horizontal).
The answer is D: 66
By using PEDMAS
X=7. Undefined
X=-7. Undefined
