Given:
The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by:
To find:
The current that will produce the maximum power.
Solution:
We have,
Here, leading coefficient is negative. So, it is a downward parabola.
Vertex of a downward parabola is the point of maxima.
If a parabola is 
, then
In the given function, a=-12 and b=120. So,
Putting x=5 in the given function, we get
Therefore, 5 watt current will produce the maximum power of 300 amperes.
Multiply (4) (7x8) and you’ll get 7/2
Answer:
The answer is 70x
Step-by-step explanation:
simplify step-by-step.
x+54x+15x
Combine Like Terms:
=x+54x+15x
=(x+54x+15x)
=70x
Answer:
=70x
Answer:
$5692.80
Step-by-step explanation:
Add 20% (aka 20% more than now since it decreased) and then get your answer!
Answer:
4 1/10 ounces of Liquid plant fertilizer left
Step-by-step explanation:
Total quantity of Liquid plant fertilizer=6 3/5 ounces
Quantity used up on a flower garden=2 1/2 ounces
Quantity of liquid plant fertilizer are left=Total quantity of Liquid plant fertilizer -Quantity used up on a flower garden
6 3/5 ounces -2 1/2 ounces( subtract whole number from whole number and fraction from fraction)
6-2 3/5 - 1/2
4 (6-5) / 10
4 1/10 ounces of Liquid plant fertilizer left
