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Vika [28.1K]
3 years ago
12

What is the vertex of y=3x^2+6x+5

Mathematics
1 answer:
katen-ka-za [31]3 years ago
6 0
\bf \textit{ vertex of a vertical parabola, using coefficients}\\\\
\begin{array}{llcclll}
y = &{{ 3}}x^2&{{ +6}}x&{{ +5}}\\
&\uparrow &\uparrow &\uparrow \\
&a&b&c
\end{array}\qquad 
\left(-\cfrac{{{ b}}}{2{{ a}}}\quad ,\quad  {{ c}}-\cfrac{{{ b}}^2}{4{{ a}}}\right)
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Paul bought 2.25 meters of wood to make 5 shelves of equal length . What is the length of each shelf ? show your work on a picec
LiRa [457]

Answer:

Length of each shelf is 0.45 meters

Step-by-step explanation:

Given

Total\ Length = 2.25\ meters

Shelves = 5

Required

Determine the length of each shelf

This is calculated by dividing the total length by number of shelves as thus:

Length = Total\ Length/Number\ of\ Shelf

Length = 2.25m /5

Length = 0.45m

Hence;

<em>Length of each shelf is 0.45 meters</em>

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Answer:

Step by step explanation

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Then we add the whole number.

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Sholpan [36]

Answer and explanation :

We have given that the expression \frac{2^{n+1}}{3^n}=2\times (\frac{2}{3})^n

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Answer:

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Step-by-step explanation:

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4. I don't know this one but are their any options?
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