Answer:
m∠CEB = 45° is true.
Step-by-step explanation:
We are given that,
∠CEA = 90° and BE bisects the ∠CEA.
Since, we know,
'When a line bisects an angle, it divides the angle into two equal parts'
So, we get,
∠CEB = ∠BEA = = 45°
So, from the options we see that,
Options A, B and D cannot be true. So, only option C is correct.
That is, m∠CEB = 45°
Answer:
A.
D. No, because one x-value corresponds to two different y-values.
Step-by-step explanation:
If you were to vertically stretch the quadratic parent function, the correct answer would be "A," because you are stretching upwards, which in turn, also changes the y-values.
As you can see in the table, the x-value of 3 repeats, which cannot occur. Each input (x-value) can go to only one output (y-value). As a result, the table does not represent a function.
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.