Answer:
Angle RTS
Step-by-step explanation
Say it out loud it goes, RS, ST.
If you put RS and ST together the angle RTS
Given the equation of a circle in the form

You have that
is the center, and
is the radius.
So, in your case, the center is
and the radius is 5.
Answer:
Widgets should be sold by $38.88 to maximize the profit.
Step-by-step explanation:
Vertex of a quadratic function:
Suppose we have a quadratic function in the following format:

It's vertex is the point 
In which


Where

If a<0, the vertex is a maximum point, that is, the maximum value happens at
, and it's value is
.
In this question:
The profit is given by:

Which is a quadratic function with 
The maximum profit happens at the x of the vertex. Thus

Widgets should be sold by $38.88 to maximize the profit.
So the scale used was
1 inch = 6 feet
Step-by-step explanation:
Given
Length of library on drawing = 13 inches
Actual length of library = 78 feet
In order to find the scale we divide the actual length by the length of library on drawing.
So,
Scale = 
So the scale used was
1 inch = 6 feet
Keywords: Scale, Maps
Learn more about scaling at:
#Learnwithbrainly