It's A. If U=16, 6+10=16
and if you plug in the numbers for the second equation it's 36=2(10)+16
Answer:
t = 12h
Step-by-step explanation:
t = total
h = hours
Answer:
90 engines 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 minimum value of the function will happen for 
C(x)=x²-180x+20,482
This means that 
How many engines must be made to minimize the unit cost?
x value of the vertex. So

90 engines must be made to minimize the unit cost.
3/4 X 10= $7.50
Because 3/4 is 75%, 10 is the original price. And 75% times 10 is 7.50<span />
Answer:
3(x+5)(x−5)
Step-by-step explanation: