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hoa [83]
3 years ago
5

PLSSS HELLLPPP MEE!!

Mathematics
1 answer:
MArishka [77]3 years ago
3 0

Answer:

the answer is 8

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2 years ago
A line passes through the point (2,3) and has a slope of 0, what equation of the line?
Andru [333]

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The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by: P(x)=-12x^2 +12
Minchanka [31]

Given:

The power generated by an electrical circuit (in watts) as function of its current x (in amperes) is modeled by:

P(x)=-12x^2+120x

To find:

The current that will produce the maximum power.

Solution:

We have,

P(x)=-12x^2+120x

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 f(x)=ax^2+bx+c, then

Vertex=\left(\dfrac{-b}{2a},f(\dfrac{-b}{2a})\right)

In the given function, a=-12 and b=120. So,

-\dfrac{b}{2a}=-\dfrac{120}{2(-12)}

-\dfrac{b}{2a}=-\dfrac{120}{-24}

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Putting x=5 in the given function, we get

P(5)=-12(5)^2+120(5)

P(5)=-12(25)+600

P(5)=-300+600

P(5)=300

Therefore, 5 watt current will produce the maximum power of 300 amperes.

6 0
3 years ago
What is 2(34+45)+6/5
Elena-2011 [213]
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A rectangle has a length this is three times its width. If the area of the rectangle is 27 square feet, what are the dimensions
yuradex [85]

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The width of the rectangle is 3 and the width is 9. Those are reasonable measurements.

Step-by-step explanation:

6 0
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