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2 years ago

Help Plz help Plz help plz

1 answer:

5 0

Answer:

215.16

Step-by-step explanation:

1/3(48.9)(13.2)=215.16

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3/8

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Levart [38]

$3x+5=14 \\ 3x=14-5 \\ 3x=9 / :3\\ \boxed{x=3} \\ \\\\\huge\text{The answer is x=3}$

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andre [41]

-8-(-41)/-11-(-46) = 33/35

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2 years ago

prohojiy [21]

If $z=1-i$ , then $|z|=\sqrt{1^2+(-1)^2}=\sqrt2$ and $\arg z=-\dfrac\pi4$ because $z$ lies in the fourth quadrant.

By DeMoivre's theorem,

$z=|z|e^{i\arg z}\implies z^{10}=(\sqrt2)^{10}e^{-i10\pi/4}=32e^{-i5\pi/2}=32e^{-i\pi/2}=-32i$

so the answer is B.

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2 years ago