3 years ago

What is 8.256 divided by 0.16 "with work please"

1 answer:

4 0

Sorry if you cant see it but anyway the answer is 51.6 i put the decimal in the wrong place at first then i realized that i had to carry over the decimal 2 times

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Can someone help me plz??

Brut [27]

Answer:

96π

Step-by-step explanation:

$v = \frac{1}{3} {r}^{2} h\pi$

V=96π

5 0

2 years ago

Find the second derivative, do not have to simplify

zlopas [31]

$f(x)=\sec(\pi x)=\dfrac{1}{\cos(\pi x)}=[\cos(\pi x)]^{-1}\\\\\text{use}\\\\(a^n)'=na^{n-1}\\\\(\cos x)'=-\sin x\\\\f'(g(x))=f'(g(x))\cdot g'(x)$

$f'(x)=\left\{[\cos(\pi x)]^{-1}\right\}'=-[\cos(\pi x)]^{-2}\cdot[-\sin(\pi x)]\cdot\pi\\\\=\dfrac{\pi\sin(\pi x)}{[\cos(\pi x)]^2}=\pi\dfrac{\sin(\pi x)}{\cos(\pi x)}\cdot\dfrac{1}{\cos(\pi x)}\\\\=\pi\tan(\pi x)\sec(\pi x)$