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3 years ago

7

If i drive 439.92 miles on 15.6 gallons of gas, how many miles could i drive on 39.7 gallons of gas?

1 answer:

eduard3 years ago

7 0

Make it into a ratio: 439.92/15.6=x/39.7 where x is the unknown. cross multiply to get your answer of 1119.5 miles

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What is the vertex of the function?

egoroff_w [7]

<h2>Explanation:</h2><h2></h2>

Here you haven't provided any function, so I'll assume this one:

$f(x)=3x^2-18x+33$

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$V(x,y) \\ \\ \\ x=-\frac{b}{2a} \\ \\ y=f(-\frac{b}{2a}) \\ \\ \\ where: \\ \\ \\ f(x)=ax^2+bx+c \\ \\ \\ So: \\ \\ a=3 \\ \\ b=-18 \\ \\ c=33$

Therefore:

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Therefore, the vertex is:

$\boxed{V(3,6)}$

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