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Setler [38]
3 years ago
15

What is the y-value of the solution to the system of equations? 3х + 5y = 1 7х + 4y=-13

Mathematics
1 answer:
Yanka [14]3 years ago
3 0

Set x's equal

21x +35y = 7

21x + 12y = -39

Subtract from one another

23y = 46

Divide

y = 2

Hope this helps ;)

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Find the linear approximation of f(x)=lnx at x=1 and use it to estimate ln(1.38).
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\bf f(x)=y=ln(x)\qquad 
\begin{cases}
x=1\\
y=ln(1)\to y=0
\end{cases}\\\\
-----------------------------\\\\
\left. \cfrac{dy}{dx}=\cfrac{1}{x} \right|_{x=1}\implies 1\impliedby m
\\\\\\
\textit{now, we know that }
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