Answer:
The current that produces maximum power is 3A
Step-by-step explanation:
Given

Required [Missing from the question]
The current that produces maximum power
First, we represent the function in standard form


Open bracket


The maximum value of c is:

Where:

By comparison: 



So, we have:




Answer:
3 + x
Step-by-step explanation:
Sum means to add, so you would just add 3 and x (since they haven't given an actual number and only a variable).
Given that <span>Jack rakes the yard in 5 hours and Jill rakes the yeard in 8 hours. Let the amount of time that it takes them to rake the yard together be t, then:

</span>
Answer:
215°
Step-by-step explanation:
Add multiples of 360° until you get an angle in the desired range:
∠B = -865° + 3×360° = 215°
It would be 9 buddy. Negative divided by negative turns into positive. 45 divided by 5 is 9.