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Serjik [45]
3 years ago
9

PLZ HELP AS FAST AS POSSIBLE! What is the value of x?

Mathematics
1 answer:
Oksanka [162]3 years ago
5 0

Answer:

In math, value is a number signifying the result of a calculation or function. So, in the example above, you could tell your teacher that the value of 5 x 6 is 30 or the value of x + y if x = 6 and y = 3 is 9. Value can also refer to a variable or constant

Step-by-step explanation:

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the value of a car when purchased in 2008 was $21,500. It loses 12% of its value every year. What is the value of the car in 201
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Step-by-step explanation:

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From the information given,

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\large\boxed{x\in[-5,\ \infty)}

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f(x)=\dfrac{1}{2}x^2+5x+6\\\\\text{The coeficient of}\ x^2\ \text{is the positive number. Therefore the parabola is op}\text{en up}.\\\\\text{If a parabola op}\text{en up, then the graph increasing in interval}\ (h,\ \infty),\\\text{and decreasing in interval}\ (-\infty,\ h).\ \text{Where}\ h\ \text{is a first coordinate of a vertex.}\\\\\text{For}\ y=ax^2+bx+c,\ h=\dfrac{-b}{2a}.\\\\\text{We have}\ a=\dfrac{1}{2}\ \text{and}\ b=5.\ \text{Substitute:}\\\\h=\dfrac{-5}{2\left(\frac{1}{2}\right)}=-\cdot\dfrac{5}{1}=-5.

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3 years ago
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