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RoseWind [281]
3 years ago
7

Can someone help me with this

Mathematics
2 answers:
Kamila [148]3 years ago
7 0

Step-by-step explanation:

please give me brainlest

dolphi86 [110]3 years ago
7 0

Answer:

\frac{3}{4}  {k}^{2}  + 2k - 29 \\  \\  \frac{3}{4}  {( - 12)}^{2}  + 2( - 12) - 29 \\  \\  \frac{3}{4} (144) - 24 - 29 \\  \\ 3(36) - 24 - 29 \\  \\ 108 - 24 - 29 = 55

I hope I helped you^_^

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Answer:

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Step-by-step explanation:

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What is the value of d/dx(1/x) at x=6 ?​
sladkih [1.3K]

If you know your derivative rules, then

d/d<em>x</em> [1/<em>x</em>] = -1/<em>x</em> ²

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If you have to use the definition of the derivative, then

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… = lim {<em>h</em> → 0} (-<em>h</em>) / (<em>hx</em> (<em>x</em> + <em>h</em>))

… = lim {<em>h</em> → 0} (-1) / (<em>x</em> (<em>x</em> + <em>h</em>))

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Alternatively, use the definition of the derivative at a point:

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… = lim {<em>x</em> → 6} -(<em>x</em> - 6) / (6<em>x</em> (<em>x</em> - 6))

… = lim {<em>x</em> → 6} (-1) / (6<em>x</em>)

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