The vector sum of two vectors as (7,5) and (13,-5) is given by
which can be written in point form as (20,0) .
<u>Step-by-step explanation:</u>
Here we have , two vectors as (7,5) and (13,-5) Which are represented as :

Addition of vector is as same as normal addition of integers as :
⇒ 
⇒ 
⇒
,
where i & j are the unit vectors in direction x-axis and y-axis respectively.
The vector sum of two vectors as (7,5) and (13,-5) is given by
which can be written in point form as (20,0) .
If the diameter of this circle is .96, then the radius is .48. The h and k values of our center are (-2, 5), and the standard form of a circle is

. We will fill in accordingly.

. That simplifies to

. That's the equation of the circle that will completely enclose the quarter.
Sure the sin function is an odd function because sin (-Ф) = - sin (Ф)
Example: sin (- 30°) = - sin (30°) = -1/2
Answer: it’s Sara paid 3
Step-by-step explanation: