
The point-slope formula of a line:

Substitute:

The slope-intercept form: 
The standard form: 
Answer:
Step-by-step explanation:
Given circle has equation as

Center = P(0,0)
The point of contact of tangent =
Q
Since tangent is perpendicular to the radius at the point of contact, we have
Slope =
as slope of perpendicular to tangent
So tangent slope would be
-1/slope of this line
= 
We have point on this line as given point
So using point slope form equation of tangent is

Answers:
∠A=45° & ∠B=45°
Step-by-step explanation:
In triangle ABC, all angles are less than 180° but their sum is 180°
For the trigonometric statements
sin(A)=cos(B)
sin(B)=cos(A)
These are true when these angles that are A and B are equal and on these angles the sin and cos value must be same.
Hence, both angles are of 45°
Volume = length x width x height
Volume = 3 1/4 x 2 x 1 3/4 = 11 3/8 cubic feet
36 donuts (2 1/2 dozen) = $8.00
So, you divide 8 by 36 and you get about 22¢ for each donut. Then, you do .22 x 12 which equals $2.64.
One dozen donuts = $2.64