2 years ago

Hi hello yes can someone help me out?

Mathematics

2 answers:

ivolga24 [154]2 years ago

8 0

A c and d hrjdjfnfng
Tnrn

Yggdrasil
F
F
Fog
G
H

abruzzese [7]2 years ago

3 0

Answer:

a c and d

Step-by-step explanation:

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A theater has 22 rows of seats. The first row has 18 seats, the second row has 20 seats, the third row has 22 seats, and so o

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Answer:

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Step-by-step explanation:

Total no of rows (n) = 22

Since, 18, 20, 22 ..... forms an arithmetic sequence with first term (a) = 18 and common difference (d) = 2.

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Formula to be used:

$S_{n}= \frac{n}{2}\bigg[2a+(n-1)d\bigg]$

Plug the values of a, d and n in the above formula, we find:

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Thus, there are total 1078 seats in the theatre.

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