Answer: 3+5x
Step-by-step explanation:
Simply and Think Hard
Answer:
An angle showing a turn through 1/5 of a circle is greater
Step-by-step explanation:
we know that
A complete circle represent 
so
An angle showing a turn through 1/6 of a circle is

An angle showing a turn through 1/5 of a circle is

therefore
An angle showing a turn through 1/5 of a circle is greater
Answer: 11x + 5y
Step-by-step explanation:
FInd the perimeter by adding all the expressions together.
4x + 5x + 2.8y + 2x + 2.2y Combine like terms
(4x + 5x + 2x) + (2.8y + 2.2y)
11x + 5y
Answer:
300 cars must be made to minimize the unit cost
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 minimum point, that is, the minimum value happens at
, and it's value is
.
The cost of producing x cars is given by:

So a quadratic equation with 
How many cars must be made to minimize the unit cost?
This is the xvalue of the vertex. So

300 cars must be made to minimize the unit cost