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2 years ago

Find the measure of ZAOC. A 33° B. 38° C. 610 D. 71°

Mathematics

2 answers:

mart [117]2 years ago

6 0

33+38 = 71
Answer D. 71

Furkat [3]2 years ago

4 0

Answer:

Angle AOE IS EQUAL TO

ANGLE AOB + ANGLE BOC

SO IT'S EQUALS TO

33 + 38

= 71

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Use the formula to evaluate the series 1/4 + 1/9 + 1/27 + 1/81.

Dmitriy789 [7]

Is the first term supposed to be 1/4, or did you actually mean 1/3?

I'll assume the latter. Write

$S=\dfrac13+\dfrac19+\dfrac1{27}+\dfrac1{81}$
$S=\dfrac13+\dfrac1{3^2}+\dfrac1{3^3}+\dfrac1{3^4}$
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$\implies S-\dfrac13S=\dfrac13-\dfrac1{3^5}$
$\dfrac23S=\dfrac13\left(1-\dfrac1{3^4}\right)$
$S=\dfrac12\left(1-\dfrac1{81}\right)$
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Step-by-step explanation:

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marysya [2.9K]

Answer:

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Step-by-step explanation:

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