Please help with 19 and 20 and explain

Mathematics

2 answers:

Verizon [17]4 years ago

4 0

It should be 15 and 8.6

Talja [164]4 years ago

3 0

The answer is 15 and 8.6

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Step-by-step explanation:

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3 years ago

Find the constant of variation for the quadratic variation. 6y=4x^2

AlladinOne [14]

$\bf \qquad \qquad \textit{direct proportional variation}\\\\
\textit{\underline{y} varies directly with \underline{x}}\qquad \qquad y=kx\impliedby 
\begin{array}{llll}
k=constant\ of\\
\qquad variation
\end{array}\\\\
-------------------------------\\\\
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3 years ago

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victus00 [196]

Answer:

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Step-by-step explanation:

Let be $d(s) = 0.0056\cdot s^{2} + 0.14\cdot s$ , where $d$ is the stopping distance measured in metres and $s$ is the speed measured in kilometres per hour. The second-order polynomial is drawn with the help of a graphing tool and whose outcome is presented below as attachment.