2 years ago

Cody was invited to a birthday party that started at 3:30. If the party ended at 7:25 how long did the party last?

Mathematics

1 answer:

rusak2 [61]2 years ago

3 0

4 hours and 55 minutes

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nydimaria [60]

Answer with Step-by-step explanation:

We are given that

$f(x)=\mid x-9\mid$

$f(x)=-(x-9)$ when x<9

$f(x)=x-9$ when $x\geq 9$

LHD

$\lim_{x\rightarrow 9-}f'(x)$

= $-\lim_{x\rightarrow 9-}(x-9)=-1$

RHD

$\lim_{x\rightarrow 9+}f'(x)$

$=\lim_{x\rightarrow 9+}(x-9)=1$

$LHD\neq RHD$

Hence, the function is not differentiable at x=9

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Lana71 [14]

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3 years ago

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MakcuM [25]

Answer:

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