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nydimaria [60]
3 years ago
5

What is the solution to the system 5x+y=2 and y=-5+8? Explain

Mathematics
2 answers:
goldfiish [28.3K]3 years ago
8 0
5x-5+8=2
5x+3=2
5x=-3+2
5x=-1
5x/5=-1/5
x= -0.2
maksim [4K]3 years ago
6 0

Answer:

What is the following


Step-by-step explanation:


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Answer:

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Step-by-step explanation:

A quadratic function is one that can be written as an equation of the form:

f (x) = ax² + bx + c

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The vertex is a point that is part of the parabola, which has the value as ordered  minimum or maximum function. If the scalar a> 0, the parabola opens or faces up and the vertex is the minimum of the function. In contrast, if a <0, the parabola opens downward and the vertex is the maximum of the function.

The calculation of the vertex, which in this case will be the maximum of the function, is carried out as follows:

  • The value of x, in this case the value of current c in amperes, can be calculated with the formula c=\frac{-b}{2*a} . In this case: c=\frac{-120}{2*(-12)} So c= 5 amperes. The current is 5 amperes.
  • The value of y, in this case the value of the electric current in watts, is obtained by substituting the value of c previously obtained in the function. In this case: P(5)= -12*5²+120*5. So P(5)= 300 watts

<u><em>The maximum power generated by the circuit is 300 watts.</em></u>

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7nadin3 [17]
If the problem was written x + 4x.  We would know to add like the coefficients together and get 5x  same thing with the radicals.

\sqrt{3} + 4 \sqrt{3} = 5 \sqrt{3}
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