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2 years ago

If 12^-x=5, what does 12^2x equal

Mathematics

1 answer:

Amiraneli [1.4K]2 years ago

7 0

Answer:

0.04

Step-by-step explanation:

12^(-x) = 5 (taking log on both sides)

log [ 12^(-x)] = log 5

-x log 12 = log 5

-x = log 5 / log 12

x = - (log 5/log12)

x = -0.6477

12^(2x)

= 12^[2(-0.6477)]

= 12 ^ (-1.295)

= 0.04

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$f(x)=3\sin x+3\cos x\implies f'(x)=3\cos x-3\sin x$

$f$ has critical points where $f'=0$ :

$3\cos x-3\sin x=0\implies\cos x=\sin x\implies\tan x=1\implies x=\pm\dfrac\pi4+2n\pi$

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3 years ago

What is 2 3/2 equal to? A. 2√8 B. 3√8 C. 3√16 D. 2√16

aivan3 [116]

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3 years ago

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Answer:

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Step-by-step explanation:

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Therefore;

(-3s-4c+1)+(-3s+3c) = -6s-c+1

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2 years ago