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EleoNora [17]
3 years ago
11

Please help!!!!!!!!!​

Mathematics
2 answers:
LiRa [457]3 years ago
8 0

Answer:

4/9

Step-by-step explanation:

When you square an entire fraction, both the numerator and detonator get squared as well.

Whitepunk [10]3 years ago
3 0

Answer:

its too simple see

(\frac{2}{3} ) {}^{2}   =  \frac{2 {}^{2} }{3 {}^{2} }  =  \frac{2 \times 2}{3 \times 3}  =  \frac{4}{9}   \\

hope it help.......(•‿•)

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True or false concave polygon has all interior angles describe any angles less than 180 Degrees degrees??
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Answer:

true

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3 years ago
A geometric sequence is defined by the equation an = (3)3 − n.
Delvig [45]
PART A

The geometric sequence is defined by the equation

a_{n}=3^{3-n}

To find the first three terms, we put n=1,2,3

When n=1,

a_{1}=3^{3-1}

a_{1}=3^{2}

a_{1}=9
When n=2,

a_{2}=3^{3-2}
a_{2}=3^{1}

a_{2}=3

When n=3

a_{3}=3^{3-3}

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The first three terms are,

9,3,1

PART B

The common ratio can be found using any two consecutive terms.

The common ratio is given by,
r= \frac{a_{2}}{a_{1}}
r = \frac{3}{9}

r = \frac{1}{3}

PART C

To find
a_{11}

We substitute n=11 into the equation of the geometric sequence.

a_{11} = {3}^{3 - 11}

This implies that,

a_{11} = {3}^{ - 8}

a_{11} = \frac{1}{ {3}^{8} }

a_{11}=\frac{1}{6561}
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